Google Professional-Cloud-Network-Engineer today updated questions

Google Cloud Certified - Professional Cloud Network Engineer Questions and Answers

Question 1

Your company has defined a resource hierarchy that includes a parent folder with subfolders for each department. Each department defines their respective project and VPC in the assigned folder and has the appropriate permissions to create Google Cloud firewall rules. The VPCs should not allow traffic to flow between them. You need to block all traffic from any source, including other VPCs, and delegate only the intra-VPC firewall rules to the respective departments. What should you do?

Options:

Create a VPC firewall rule in each VPC to block traffic from any source, with priority 0.

Create a VPC firewall rule in each VPC to block traffic from any source, with priority 1000.

Create two hierarchical firewall policies per department's folder with two rules in each: a high-priority rule that matches traffic from the private CIDRs assigned to the respective VPC and sets the action to allow, and another lower-priority rule that blocks traffic from any other source.

Create two hierarchical firewall policies per department's folder with two rules in each: a high-priority rule that matches traffic from the private CIDRs assigned to the respective VPC and sets the action to goto_next, and another lower-priority rule that blocks traffic from any other source.

Question 2

You have two Google Cloud projects in a perimeter to prevent data exfiltration. You need to move a third project inside the perimeter; however, the move could negatively impact the existing environment. You need to validate the impact of the change. What should you do?

Options:

Enable Firewall Rules Logging inside the third project.

Modify the existing VPC Service Controls policy to include the new project in dry run mode.

Monitor the Resource Manager audit logs inside the perimeter.

Enable VPC Flow Logs inside the third project, and monitor the logs for negative impact.

Question 3

Question:

Recently, your networking team enabled Cloud CDN for one of the external-facing services that is exposed through an external Application Load Balancer. The application team has already defined which content should be cached within the responses. Upon testing the load balancer, you did not observe any change in performance after the Cloud CDN enablement. You need to resolve the issue. What should you do?

Options:

Configure the CACHE_MAX_STATIC caching mode on Cloud CDN to ensure Cloud CDN caches content depending on responses from the backends.

Configure the USE_ORIGIN_HEADERS caching mode on Cloud CDN to ensure Cloud CDN caches content based on response headers from the backends.

Configure the CACHE_ALL_STATIC caching mode on Cloud CDN to ensure Cloud CDN caches all static content as well as content defined by the backends.

Configure the FORCE_CACHE_ALL caching mode on Cloud CDN to ensure all appropriate content is cached.

Question 4

Your company is planning a migration to Google Kubernetes Engine. Your application team informed you that they require a minimum of 60 Pods per node and a maximum of 100 Pods per node Which Pod per node CIDR range should you

use?

Options:

/24

/25

/26

/28

Question 5

Your company has a single Virtual Private Cloud (VPC) network deployed in Google Cloud with access from on-premises locations using Cloud Interconnect connections. Your company must be able to send traffic to Cloud Storage only through the Interconnect links while accessing other Google APIs and services over the public internet. What should you do?

Options:

Use the default public domains for all Google APIs and services.

Use Private Service Connect to access Cloud Storage, and use the default public domains for all other Google APIs and services.

Use Private Google Access, with restricted.googleapis.com virtual IP addresses for Cloud Storage and private.googleapis.com for all other Google APIs and services.

Use Private Google Access, with private.googleapis.com virtual IP addresses for Cloud Storage and restricted.googleapis.com virtual IP addresses for all other Google APIs and services.

Question 6

You are designing a Partner Interconnect hybrid cloud connectivity solution with geo-redundancy across two metropolitan areas. You want to follow Google-recommended practices to set up the following region/metro pairs:

(region 1/metro 1)

(region 2/metro 2)

What should you do?

Options:

Create a Cloud Router in region 1 with two VLAN attachments connected to metro1-zone1-x.

Create a Cloud Router in region 2 with two VLAN attachments connected to metro1-zone2-x.

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone1-x.

Create a Cloud Router in region 2 with two VLAN attachments connected to metro2-zone2-x.

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone2-x.

Create a Cloud Router in region 2 with one VLAN attachment connected to metro2-zone2-x.

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone1-x and one VLAN attachment connected to metro1-zone2-x.

Create a Cloud Router in region 2 with one VLAN attachment connected to metro2-zone1-x and one VLAN attachment to metro2-zone2-x.

Question 7

Question:

Your organization has distributed geographic applications with significant data volumes. You need to create a design that exposes the HTTPS workloads globally and keeps traffic costs to a minimum. What should you do?

Options:

Deploy a regional external Application Load Balancer with Standard Network Service Tier.

Deploy a regional external Application Load Balancer with Premium Network Service Tier.

Deploy a global external proxy Network Load Balancer with Standard Network Service Tier.

Deploy a global external Application Load Balancer with Premium Network Service Tier.

Question 8

Your organization has a Google Cloud Virtual Private Cloud (VPC) with subnets in us-east1, us-west4, and europe-west4 that use the default VPC configuration. Employees in a branch office in Europe need to access the resources in the VPC using HA VPN. You configured the HA VPN associated with the Google Cloud VPC for your organization with a Cloud Router deployed in europe-west4. You need to ensure that the users in the branch office can quickly and easily access all resources in the VPC. What should you do?

Options:

Create custom advertised routes for each subnet.

Configure each subnet’s VPN connections to use Cloud VPN to connect to the branch office.

Configure the VPC dynamic routing mode to Global.

Set the advertised routes to Global for the Cloud Router.

Question 9

You want to set up two Cloud Routers so that one has an active Border Gateway Protocol (BGP) session, and the other one acts as a standby.

Which BGP attribute should you use on your on-premises router?

Options:

AS-Path

Community

Local Preference

Multi-exit Discriminator

Question 10

You have an application that is running in a managed instance group. Your development team has released an updated instance template which contains a new feature which was not heavily tested. You want to minimize impact to users if there is a bug in the new template.

How should you update your instances?

Options:

Manually patch some of the instances, and then perform a rolling restart on the instance group.

Using the new instance template, perform a rolling update across all instances in the instance group. Verify the new feature once the rollout completes.

Deploy a new instance group and canary the updated template in that group. Verify the new feature in the new canary instance group, and then update the original instance group.

Perform a canary update by starting a rolling update and specifying a target size for your instances to receive the new template. Verify the new feature on the canary instances, and then roll forward to the rest of the instances.

Question 11

Your company runs an enterprise platform on-premises using virtual machines (VMS). Your internet customers have created tens of thousands of DNS domains panting to your public IP addresses allocated to the Vtvls Typically, your customers hard-code your IP addresses In their DNS records You are now planning to migrate the platform to Compute Engine and you want to use Bring your Own IP you want to minimize disruption to the Platform What Should you d0?

Options:

Create a VPC and request static external IP addresses from Google Cloud Assagn the IP addresses to the Compute Engine instances. Notify your customers of the new IP addresses so they can update their DNS

Verify ownership of your IP addresses. After the verification, Google Cloud advertises and provisions the IP prefix for you_ Assign the IP addresses to the Compute Engine Instances

Create a VPC With the same IP address range as your on-premises network Asson the IP addresses to the Compute Engine Instances.

Verify ownership of your IP addresses. Use live migration to import the prefix Assign the IP addresses to Compute Engine instances.

Question 12

You want Cloud CDN to serve the https://www.example.com/images/spacetime.png static image file that is hosted in a private Cloud Storage bucket, You are using the VSE ORIG.-X_NZADERS cache mode You receive an HTTP 403 error when opening the file In your browser and you see that the HTTP response has a Cache-control: private, max-age=O header How should you correct this Issue?

Options:

Configure a Cloud Storage bucket permission that gives the Storage Legacy Object Reader role

Change the cache mode to cache all content.

Increase the default time-to-live (TTL) for the backend service.

Enable negative caching for the backend bucket

Question 13

You have provisioned a Dedicated Interconnect connection of 20 Gbps with a VLAN attachment of 10 Gbps. You recently noticed a steady increase in ingress traffic on the Interconnect connection from the on-premises data center. You need to ensure that your end users can achieve the full 20 Gbps throughput as quickly as possible. Which two methods can you use to accomplish this? (Choose two.)

Options:

Configure an additional VLAN attachment of 10 Gbps in another region. Configure the on-premises router to advertise routes with the same multi-exit discriminator (MED).

Configure an additional VLAN attachment of 10 Gbps in the same region. Configure the on-premises router to advertise routes with the same multi-exit discriminator (MED).

From the Google Cloud Console, modify the bandwidth of the VLAN attachment to 20 Gbps.

From the Google Cloud Console, request a new Dedicated Interconnect connection of 20 Gbps, and configure a VLAN attachment of 10 Gbps.

Configure Link Aggregation Control Protocol (LACP) on the on-premises router to use the 20-Gbps Dedicated Interconnect connection.

Question 14

You want to configure a NAT to perform address translation between your on-premises network blocks and GCP.

Which NAT solution should you use?

Options:

Cloud NAT

An instance with IP forwarding enabled

An instance configured with iptables DNAT rules

An instance configured with iptables SNAT rules

Question 15

You have the following Shared VPC design VPC Flow Logs is configured for Subnet-1 In the host VPC. You also want to monitor flow logs for Subnet-2. What should you do?

Options:

Configure a firewall rule to permit Subnet-2 IP addresses outbound in the host protect VPC.

Configure Packet Mirroring in both the host and service project VPCs.

Configure a VPC Flow Logs filter for Subnet-2 in the host project VPC.

Configure VPC Flow Logs in the service project VPC for Subnet-2.

Question 16

Your organization is implementing a new security policy to control how firewall rules are applied to control flows between virtual machines (VMs). Using Google-recommended practices, you need to set up a firewall rule to enforce strict control of traffic between VM A and VM B. You must ensure that communications flow only from VM A to VM B within the VPC, and no other communication paths are allowed. No other firewall rules exist in the VPC. Which firewall rule should you configure to allow only this communication path?

Options:

Firewall rule direction: ingress

Action: allow

Target: VM B service account

Source ranges: VM A service account

Priority: 1000

Firewall rule direction: ingress

Action: allow

Target: specific VM B tag

Source ranges: VM A tag and VM A source IP address

Priority: 1000

Firewall rule direction: ingress

Action: allow

Target: VM A service account

Source ranges: VM B service account and VM B source IP address

Priority: 100

Firewall rule direction: ingress

Action: allow

Target: specific VM A tag

Source ranges: VM B tag and VM B source IP address

Priority: 100

Question 17

You want to use Cloud Interconnect to connect your on-premises network to a GCP VPC. You cannot meet Google at one of its point-of-presence (POP) locations, and your on-premises router cannot run a Border Gateway Protocol (BGP) configuration.

Which connectivity model should you use?

Options:

Direct Peering

Dedicated Interconnect

Partner Interconnect with a layer 2 partner

Partner Interconnect with a layer 3 partner

Question 18

You are designing the network architecture for your organization. Your organization has three developer teams: Web, App, and Database. All of the developer teams require access to Compute Engine instances to perform their critical tasks. You are part of a small network and security team that needs to provide network access to the developers. You need to maintain centralized control over network resources, including subnets, routes, and firewalls. You want to minimize operational overhead. How should you design this topology?

Options:

Configure a host project with a Shared VPC. Create service projects for Web, App, and Database.

Configure one VPC for Web, one VPC for App, and one VPC for Database. Configure HA VPN between each VPC.

Configure three Shared VPC host projects, each with a service project: one for Web, one for App, and one for Database.

Configure one VPC for Web, one VPC for App, and one VPC for Database. Use VPC Network Peering to connect all VPCs in a full mesh.

Question 19

You are deploying a global external TCP load balancing solution and want to preserve the source IP address of the original layer 3 payload.

Which type of load balancer should you use?

Options:

HTTP(S) load balancer

Network load balancer

Internal load balancer

TCP/SSL proxy load balancer

Question 20

Question:

You reviewed the user behavior for your main application, which uses an external global Application Load Balancer, and found that the backend servers were overloaded due to erratic spikes in client requests. You need to limit concurrent sessions and return an HTTP 429 "Too Many Requests" response back to the client while following Google-recommended practices. What should you do?

Options:

Create a Cloud Armor security policy, and apply the predefined Open Worldwide Application Security Project (OWASP) rules to automatically implement the rate limit per client IP address.

Configure the load balancer to accept only the defined amount of requests per client IP address, increase the backend servers to support more traffic, and redirect traffic to a different backend to burst traffic.

Configure a VM with Linux, implement the rate limit through iptables, and use a firewall rule to send an HTTP 429 response to the client application.

Create a Cloud Armor security policy, and associate the policy with the load balancer. Configure the security policy's settings as follows: action: throttle, conform-action: allow, exceed-action: deny-429.

Question 21

You are configuring the firewall endpoints as part of the Cloud Next Generation Firewall (Cloud NGFW) intrusion prevention service in Google Cloud. You have configured a threat prevention security profile, and you now need to create an endpoint for traffic inspection. What should you do?

Options:

Create a Private Service Connect endpoint within the zone, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.

Create a firewall endpoint within the region, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.

Create a firewall endpoint within the zone, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.

Attach the profile to the VPC network, create a firewall endpoint within the zone, and use a firewall policy rule to apply the L7 inspection.

Question 22

Your on-premises data center has 2 routers connected to your GCP through a VPN on each router. All applications are working correctly; however, all of the traffic is passing across a single VPN instead of being load-balanced across the 2 connections as desired.

During troubleshooting you find:

•Each on-premises router is configured with the same ASN.

•Each on-premises router is configured with the same routes and priorities.

•Both on-premises routers are configured with a VPN connected to a single Cloud Router.

•The VPN logs have no-proposal-chosen lines when the VPNs are connecting.

•BGP session is not established between one on-premises router and the Cloud Router.

What is the most likely cause of this problem?

Options:

One of the VPN sessions is configured incorrectly.

A firewall is blocking the traffic across the second VPN connection.

You do not have a load balancer to load-balance the network traffic.

BGP sessions are not established between both on-premises routers and the Cloud Router.

Question 23

You create a Google Kubernetes Engine private cluster and want to use kubectl to get the status of the pods. In one of your instances you notice the master is not responding, even though the cluster is up and running.

What should you do to solve the problem?

Options:

Assign a public IP address to the instance.

Create a route to reach the Master, pointing to the default internet gateway.

Create the appropriate firewall policy in the VPC to allow traffic from Master node IP address to the instance.

Create the appropriate master authorized network entries to allow the instance to communicate to the master.

Question 24

You recently deployed your application in Google Cloud. You need to verify your Google Cloud network configuration before deploying your on-premises workloads. You want to confirm that your Google Cloud network configuration allows traffic to flow from your cloud resources to your on- premises network. This validation should also analyze and diagnose potential failure points in your Google Cloud network configurations without sending any data plane test traffic. What should you do?

Options:

Use Network Intelligence Center's Connectivity Tests.

Enable Packet Mirroring on your application and send test traffic.

Use Network Intelligence Center's Network Topology visualizations.

Enable VPC Flow Logs and send test traffic.

Question 25

You need to enable Cloud CDN for all the objects inside a storage bucket. You want to ensure that all the object in the storage bucket can be served by the CDN.

What should you do in the GCP Console?

Options:

Create a new cloud storage bucket, and then enable Cloud CDN on it.

Create a new TCP load balancer, select the storage bucket as a backend, and then enable Cloud CDN on the backend.

Create a new SSL proxy load balancer, select the storage bucket as a backend, and then enable Cloud CDN on the backend.

Create a new HTTP load balancer, select the storage bucket as a backend, enable Cloud CDN on the backend, and make sure each object inside the storage bucket is shared publicly.

Question 26

Your end users are located in close proximity to us-east1 and europe-west1. Their workloads need to communicate with each other. You want to minimize cost and increase network efficiency.

How should you design this topology?

Options:

Create 2 VPCs, each with their own regions and individual subnets. Create 2 VPN gateways to establish connectivity between these regions.

Create 2 VPCs, each with their own region and individual subnets. Use external IP addresses on the instances to establish connectivity between these regions.

Create 1 VPC with 2 regional subnets. Create a global load balancer to establish connectivity between the regions.

Create 1 VPC with 2 regional subnets. Deploy workloads in these subnets and have them communicate using private RFC1918 IP addresses.

Question 27

You are designing a hybrid cloud environment for your organization. Your Google Cloud environment is interconnected with your on-premises network using Cloud HA VPN and Cloud Router. The Cloud Router is configured with the default settings. Your on-premises DNS server is located at 192.168.20.88 and is protected by a firewall, and your Compute Engine resources are located at 10.204.0.0/24. Your Compute Engine resources need to resolve on-premises private hostnames using the domain corp.altostrat.com while still resolving Google Cloud hostnames. You want to follow Google-recommended practices. What should you do?

Options:

Create a private forwarding zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com that points to 192.168.20.88.

Configure your on-premises firewall to accept traffic from 10.204.0.0/24.

Set a custom route advertisement on the Cloud Router for 10.204.0.0/24

Create a private forwarding zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com that points to 192.168 20.88.

Configure your on-premises firewall to accept traffic from 35.199.192.0/19

Set a custom route advertisement on the Cloud Router for 35.199.192.0/19.

Create a private forwarding zone in Cloud DNS for ‘corp .altostrat.com’ called corp-altostrat-com that points to 192.168.20.88.

Configure your on-premises firewall to accept traffic from 10.204.0.0/24.

Modify the /etc/resolv conf file on your Compute Engine instances to point to 192.168.20 88

Create a private zone in Cloud DNS for ‘corp altostrat.com’ called corp-altostrat-com.

Configure DNS Server Policies and create a policy with Alternate DNS servers to 192.168.20.88.

Configure your on-premises firewall to accept traffic from 35.199.192.0/19.

Set a custom route advertisement on the Cloud Router for 35.199.192.0/19.

Question 28

Your company is running out of network capacity to run a critical application in the on-premises data center. You want to migrate the application to GCP. You also want to ensure that the Security team does not lose their ability to monitor traffic to and from Compute Engine instances.

Which two products should you incorporate into the solution? (Choose two.)

Options:

VPC flow logs

Firewall logs

Cloud Audit logs

Stackdriver Trace

Compute Engine instance system logs

Question 29

You create multiple Compute Engine virtual machine instances to be used as TFTP servers.

Which type of load balancer should you use?

Options:

HTTP(S) load balancer

SSL proxy load balancer

TCP proxy load balancer

Network load balancer

Question 30

You are creating a new application and require access to Cloud SQL from VPC instances without public IP addresses.

Which two actions should you take? (Choose two.)

Options:

Activate the Service Networking API in your project.

Activate the Cloud Datastore API in your project.

Create a private connection to a service producer.

Create a custom static route to allow the traffic to reach the Cloud SQL API.

Enable Private Google Access.

Question 31

There are two established Partner Interconnect connections between your on-premises network and Google Cloud. The VPC that hosts the Partner Interconnect connections is named "vpc-a" and contains three VPC subnets across three regions, Compute Engine instances, and a GKE cluster. Your on-premises users would like to resolve records hosted in a Cloud DNS private zone following Google-recommended practices. You need to implement a solution that allows your on-premises users to resolve records that are hosted in Google Cloud. What should you do?

Options:

Associate the private zone to "vpc-a." Create an outbound forwarding policy and associate the policy to "vpc-a." Configure the on-premises DNS servers to forward queries for the private zone to the entry point addresses created when the policy was attached to "vpc-a."

Configure a DNS proxy service inside one of the GKE clusters. Expose the DNS proxy service in GKE as an internal load balancer. Configure the on-premises DNS servers to forward queries for the private zone to the IP address of the internal load balancer.

Use custom route advertisements to announce 169.254.169.254 via BGP to the on-premises environment. Configure the on-premises DNS servers to forward DNS requests to 169.254.169.254.

Associate the private zone to "vpc-a." Create an inbound forwarding policy and associate the policy to "vpc-a." Configure the on-premises DNS servers to forward queries for the private zone to the entry point addresses created when the policy was attached to "vpc-a."

Question 32

Your organization uses a hub-and-spoke architecture with critical Compute Engine instances in your Virtual Private Clouds (VPCs). You are responsible for the design of Cloud DNS in Google Cloud. You need to be able to resolve Cloud DNS private zones from your on-premises data center and enable on-premises name resolution from your hub-and-spoke VPC design. What should you do?

Options:

Configure a private DNS zone in the hub VPC, and configure DNS forwarding to the on-premises server.

Configure DNS peering from the spoke VPCs to the hub VPC.

Configure a DNS policy in the hub VPC to allow inbound query forwarding from the spoke VPCs.

Configure the spoke VPCs with a private zone, and set up DNS peering to the hub VPC.

Configure a DNS policy in the spoke VPCs, and configure your on-premises DNS as an alternate DNS server.

Configure the hub VPC with a private zone, and set up DNS peering to each of the spoke VPCs.

Configure a DNS policy in the hub VPC, and configure the on-premises DNS as an alternate DNS server.

Configure the spoke VPCs with a private zone, and set up DNS peering to the hub VPC.

Question 33

You successfully provisioned a single Dedicated Interconnect. The physical connection is at a colocation facility closest to us-west2. Seventy-five percent of your workloads are in us-east4, and the remaining twenty-five percent of your workloads are in us-central1. All workloads have the same network traffic profile. You need to minimize data transfer costs when deploying VLAN attachments. What should you do?

Options:

Keep the existing Dedicated interconnect. Deploy a VLAN attachment to a Cloud Router in us-west2, and use VPC global routing to access workloads in us-east4 and us-central1.

Keep the existing Dedicated Interconnect. Deploy a VLAN attachment to a Cloud Router in us-east4, and deploy another VLAN attachment to a Cloud Router in us-central1.

Order a new Dedicated Interconnect for a colocation facility closest to us-east4, and use VPC global routing to access workloads in us-central1.

Order a new Dedicated Interconnect for a colocation facility closest to us-central1, and use VPC global routing to access workloads in us-east4.

Question 34

You need to create a new VPC network that allows instances to have IP addresses in both the 10.1.1.0/24 network and the 172.16.45.0/24 network.

What should you do?

Options:

Configure global load balancing to point 172.16.45.0/24 to the correct instance.

Create unique DNS records for each service that sends traffic to the desired IP address.

Configure an alias-IP range of 172.16.45.0/24 on the virtual instances within the VPC subnet of 10.1.1.0/24.

Use VPC peering to allow traffic to route between the 10.1.0.0/24 network and the 172.16.45.0/24 network.

Question 35

You want to establish a dedicated connection to Google that can access Cloud SQL via a public IP address and that does not require a third-party service provider.

Which connection type should you choose?

Options:

Carrier Peering

Direct Peering

Dedicated Interconnect

Partner Interconnect

Question 36

You recently noticed a recurring daily spike in network usage in your Google Cloud project. You need to identify the virtual machine (VM) instances and type of traffic causing the spike in traffic utilization while minimizing the cost and management overhead required. What should you do?

Options:

Enable VPC Flow Logs and send the output to BigQuery for analysis.

Enable Firewall Rules Logging for all allowed traffic and send the output to BigQuery for analysis.

Configure Packet Mirroring to send all traffic to a VM. Use Wireshark on the VM to identity traffic utilization for each VM in the VPC.

Deploy a third-party network appliance and configure it as the default gateway. Use the third-party network appliance to identify users with high network traffic.

Question 37

You are troubleshooting connectivity issues between Google Cloud and a public SaaS provider. Connectivity between the two environments is through the public internet. Your users are reporting intermittent connection errors when using TCP to connect; however, ICMP tests show no failures. According to users, errors occur around the same time every day. You want to troubleshoot and gather information by using Google Cloud tools that are most likely to provide insights into what is occurring within Google Cloud. What should you do?

Options:

Enable the Firewall Insights API. Set the deny rule insights observation period to one day. Review the insights to assure there are no firewall rules denying traffic.

Enable and review Cloud Logging on your Cloud NAT gateway. Look for logs with errors matching the destination IP address of the public SaaS provider.

Create a Connectivity Test by using TCP, the source IP address of your test VM, and the destination IP address of the public SaaS provider. Review the live data plane analysis and take the next steps based on the test results.

Enable and review Cloud Logging for Cloud Armor. Look for logs with errors matching the destination IP address of the public SaaS provider.

Question 38

You are using a third-party next-generation firewall to inspect traffic. You created a custom route of 0.0.0.0/0 to route egress traffic to the firewall. You want to allow your VPC instances without public IP addresses to access the BigQuery and Cloud Pub/Sub APIs, without sending the traffic through the firewall.

Which two actions should you take? (Choose two.)

Options:

Turn on Private Google Access at the subnet level.

Turn on Private Google Access at the VPC level.

Turn on Private Services Access at the VPC level.

Create a set of custom static routes to send traffic to the external IP addresses of Google APIs and services via the default internet gateway.

Create a set of custom static routes to send traffic to the internal IP addresses of Google APIs and services via the default internet gateway.

Question 39

You are designing a shared VPC architecture. Your network and security team has strict controls over which routes are exposed between departments. Your Production and Staging departments can communicate with each other, but only via specific networks. You want to follow Google-recommended practices.

How should you design this topology?

Options:

Create 2 shared VPCs within the shared VPC Host Project, and enable VPC peering between them. Use firewall rules to filter access between the specific networks.

Create 2 shared VPCs within the shared VPC Host Project, and create a Cloud VPN/Cloud Router between them. Use Flexible Route Advertisement (FRA) to filter access between the specific networks.

Create 2 shared VPCs within the shared VPC Service Project, and create a Cloud VPN/Cloud Router between them. Use Flexible Route Advertisement (FRA) to filter access between the specific networks.

Create 1 VPC within the shared VPC Host Project, and share individual subnets with the Service Projects to filter access between the specific networks.

Question 40

Question:

Your organization has a subset of applications in multiple regions that require internet access. You need to control internet access from applications to URLs, including hostnames and paths. The compute instances that run these applications have an associated secure tag. What should you do?

Options:

Deploy a Cloud NAT gateway. Use fully qualified domain name (FQDN) objects in the firewall policy rules to filter outgoing traffic to specific domains from machines that match the secure tag.

Deploy a single Secure Web Proxy instance with global access enabled. Apply a Secure Web Proxy policy to allow access from machines that match the secure tag to the URLs defined in a URL list.

Deploy a Secure Web Proxy instance in each region. Apply a Secure Web Proxy policy to allow access from machines that match the secure tag to the URLs defined in a URL list.

Deploy a Cloud NAT gateway. Use fully qualified domain name (FQDN) objects in the firewall policy rules to filter outgoing traffic to specific domains from machines that match a service account.

Question 41

You want to create a service in GCP using IPv6.

What should you do?

Options:

Create the instance with the designated IPv6 address.

Configure a TCP Proxy with the designated IPv6 address.

Configure a global load balancer with the designated IPv6 address.

Configure an internal load balancer with the designated IPv6 address.

Question 42

Your company has a Virtual Private Cloud (VPC) with two Dedicated Interconnect connections in two different regions: us-west1 and us-east1. Each Dedicated Interconnect connection is attached to a Cloud Router in its respective region by a VLAN attachment. You need to configure a high availability failover path. By default, all ingress traffic from the on-premises environment should flow to the VPC using the us-west1 connection. If us-west1 is unavailable, you want traffic to be rerouted to us-east1. How should you configure the multi-exit discriminator (MED) values to enable this failover path?

Options:

Use regional routing. Set the us-east1 Cloud Router to a base priority of 100, and set the us-west1 Cloud Router to a base priority of 1

Use global routing. Set the us-east1 Cloud Router to a base priority of 100, and set the us-west1 Cloud Router to a base priority of 1

Use regional routing. Set the us-east1 Cloud Router to a base priority of 1000, and set the us-west1 Cloud Router to a base priority of 1

Use global routing. Set the us-east1 Cloud Router to a base priority of 1000, and set the us-west1 Cloud Router to a base priority of 1

Question 43

You created a VPC network named Retail in auto mode. You want to create a VPC network named Distribution and peer it with the Retail VPC.

How should you configure the Distribution VPC?

Options:

Create the Distribution VPC in auto mode. Peer both the VPCs via network peering.

Create the Distribution VPC in custom mode. Use the CIDR range 10.0.0.0/9. Create the necessary subnets, and then peer them via network peering.

Create the Distribution VPC in custom mode. Use the CIDR range 10.128.0.0/9. Create the necessary subnets, and then peer them via network peering.

Rename the default VPC as "Distribution" and peer it via network peering.

Question 44

Your organization wants to set up hybrid connectivity with VLAN attachments that terminate in a single Cloud Router with 99.9% uptime. You need to create a network design for your on-premises router that meets those requirements and has an active/passive configuration that uses only one VLAN attachment at a time. What should you do?

Options:

Create a design that uses a BGP multi-exit discriminator (MED) attribute to influence the egress path from Google Cloud to the on-premises environment.

Create a design that uses the as_path BGP attribute to influence the egress path from Google Cloud to the on-premises environment.

Create a design that uses an equal-cost multipath (ECMP) with flow-based hashing on your on-premises devices.

Create a design that uses the local_pref BGP attribute to influence the egress path from Google Cloud to the on-premises environment.

Question 45

You have applications running in the us-west1 and us-east1 regions. You want to build a highly available VPN that provides 99.99% availability to connect your applications from your project to the cloud services provided by your partner's project while minimizing the amount of infrastructure required. Your partner's services are also in the us-west1 and us-east1 regions. You want to implement the simplest solution. What should you do?

Options:

Create one Cloud Router and one HA VPN gateway in each region of your VPC and your partner's VPC. Connect your VPN gateways to the partner's gateways. Enable global dynamic routing in each VPC.

Create one Cloud Router and one HA VPN gateway in the us-west1 region of your VPC. Create one OpenVPN Access Server in each region of your partner's VPC. Connect your VPN gateway to your partner's servers.

Create one OpenVPN Access Server in each region of your VPC and your partner's VPC. Connect your servers to the partner's servers.

Create one Cloud Router and one HA VPN gateway in the us-west1 region of your VPC and your partner's VPC. Connect your VPN gateways to the partner's gateways with a pair of tunnels. Enable global dynamic routing in each VPC.

Question 46

You configured a single IPSec Cloud VPN tunnel for your organization to a third-party customer. You confirmed that the VPN tunnel is established; however, the BGP session status states that BGP is not configured. The customer has provided you with their BGP settings:

Local BGP address: 169.254.11.1/30

Local ASN: 64515

Peer BGP address: 169.254.11.2

Peer ASN: 64517

Base MED: 1000

MD5 Authentication: Disabled

You need to configure the local BGP session for this tunnel based on the settings provided by the customer. You already associated the Cloud Router with the Cloud VPN Tunnel. What settings should you use for the BGP session?

Options:

Peer ASN: 64517

Advertised Route Priority (MED): 100

Local BGP IP: 169.254.11.2

Peer BGP IP: 169.254.11.1

MD5 Authentication: Disabled

Peer ASN: 64515

Advertised Route Priority (MED): 100

Local BGP IP: 169.254.11.2

Peer BGP IP: 169.254.11.1

MD5 Authentication: Disabled

Peer ASN: 64515

Advertised Route Priority (MED): 1000

Local BGP IP: 169.254.11.2

Peer BGP IP: 169.254.11.1

MD5 Authentication: Enabled

Peer ASN: 64515

Advertised Route Priority (MED): 100

Local BGP IP: 169.254.11.1

Peer BGP IP: 169.254.11.2

MD5 Authentication: Disabled

Question 47

Your software team is developing an on-premises web application that requires direct connectivity to Compute Engine Instances in GCP using the RFC 1918 address space. You want to choose a connectivity solution from your on-premises environment to GCP, given these specifications:

Your ISP is a Google Partner Interconnect provider.

Your on-premises VPN device’s internet uplink and downlink speeds are 10 Gbps.

A test VPN connection between your on-premises gateway and GCP is performing at a maximum speed of 500 Mbps due to packet losses.

Most of the data transfer will be from GCP to the on-premises environment.

The application can burst up to 1.5 Gbps during peak transfers over the Interconnect.

Cost and the complexity of the solution should be minimal.

How should you provision the connectivity solution?

Options:

Provision a Partner Interconnect through your ISP.

Provision a Dedicated Interconnect instead of a VPN.

Create multiple VPN tunnels to account for the packet losses, and increase bandwidth using ECMP.

Use network compression over your VPN to increase the amount of data you can send over your VPN.

Question 48

You suspect that one of the virtual machines (VMs) in your default Virtual Private Cloud (VPC) is under a denial-of-service attack. You need to analyze the incoming traffic for the VM to understand where the traffic is coming from. What should you do?

Options:

Enable Data Access audit logs of the VPC. Analyze the logs and get the source IP addresses from the subnetworks.get field.

Enable VPC Flow Logs for the subnet. Analyze the logs and get the source IP addresses from the connection field.

Enable VPC Flow Logs for the VPC. Analyze the logs and get the source IP addresses from the src_location field.

Enable Data Access audit logs of the subnet. Analyze the logs and get the source IP addresses from the networks.get field.

Question 49

You are configuring load balancing for a standard three-tier (web, application, and database) application. You have configured an external HTTP(S) load balancer for the web servers. You need to configure load balancing for the application tier of servers. What should you do?

Options:

Configure a forwarding rule on the existing load balancer for the application tier.

Configure equal cost multi-path routing on the application servers.

Configure a new internal HTTP(S) load balancer for the application tier.

Configure a URL map on the existing load balancer to route traffic to the application tier.

Question 50

Your company has 10 separate Virtual Private Cloud (VPC) networks, with one VPC per project in a single region in Google Cloud. Your security team requires each VPC network to have private connectivity to the main on-premises location via a Partner Interconnect connection in the same region. To optimize cost and operations, the same connectivity must be shared with all projects. You must ensure that all traffic between different projects, on-premises locations, and the internet can be inspected using the same third-party appliances. What should you do?

Options:

Configure the third-party appliances with multiple interfaces and specific Partner Interconnect VLAN attachments per project. Create the relevant routes on the third-party appliances and VPC networks.

Configure the third-party appliances with multiple interfaces, with each interface connected to a separate VPC network. Create separate VPC networks for on- premises and internet connectivity. Create the relevant routes on the third-party appliances and VPC networks.

Consolidate all existing projects’ subnetworks into a single VPC. Create separate VPC networks for on-premises and internet connectivity. Configure the third-party appliances with multiple interfaces, with each interface connected to a separate VPC network. Create the relevant routes on the third-party appliances and VPC networks.

Configure the third-party appliances with multiple interfaces. Create a hub VPC network for all projects, and create separate VPC networks for on-premises and internet connectivity. Create the relevant routes on the third-party appliances and VPC networks. Use VPC Network Peering to connect all projects’ VPC networks to the hub VPC. Export custom routes from the hub VPC and import on all projects’ VPC networks.

Question 51

Your organization has Compute Engine instances in us-east1, us-west2, and us-central1. Your organization also has an existing Cloud Interconnect physical connection in the East Coast of the United States with a single VLAN attachment and Cloud Router in us-east1. You need to provide a design with high availability and ensure that if a region goes down, you still have access to all your other Virtual Private Cloud (VPC) subnets. You need to accomplish this in the most cost-effective manner possible. What should you do?

Options:

Configure your VPC routing in regional mode.

Add an additional Cloud Interconnect VLAN attachment in the us-east1 region, and configure a Cloud Router in us-east1.

Configure your VPC routing in global mode.

Add an additional Cloud Interconnect VLAN attachment in the us-east1 region, and configure a Cloud Router in us-east1.

Configure your VPC routing in global mode.

Add an additional Cloud Interconnect VLAN attachment in the us-west2 region, and configure a Cloud Router in us-west2.

Configure your VPC routing in regional mode.

Add additional Cloud Interconnect VLAN attachments in the us-west2 and us-central1 regions, and configure Cloud Routers in us-west2 and us-central1.

Question 52

You have deployed a proof-of-concept application by manually placing instances in a single Compute Engine zone. You are now moving the application to production, so you need to increase your application availability and ensure it can autoscale.

How should you provision your instances?

Options:

Create a single managed instance group, specify the desired region, and select Multiple zones for the location.

Create a managed instance group for each region, select Single zone for the location, and manually distribute instances across the zones in that region.

Create an unmanaged instance group in a single zone, and then create an HTTP load balancer for the instance group.

Create an unmanaged instance group for each zone, and manually distribute the instances across the desired zones.

Question 53

You need to configure a static route to an on-premises resource behind a Cloud VPN gateway that is configured for policy-based routing using the gcloud command.

Which next hop should you choose?

Options:

The default internet gateway

The IP address of the Cloud VPN gateway

The name and region of the Cloud VPN tunnel

The IP address of the instance on the remote side of the VPN tunnel

Question 54

You need to create the technical architecture for hybrid connectivity from your data center to Google Cloud This will be managed by a partner. You want to follow Google-recommended practices for production-level applications. What should you do?

Options:

Ask the partner to install two security appliances in the data center. Configure one VPN connection from each of these devices to Google

Cloud, and ensure that the VPN devices on-premises are in separate racks on separate power and cooling systems.

Configure two Partner Interconnect connections in one metropolitan area (metro). Make sure the Interconnect connections are placed in

different metro edge availability domains. Configure two VLAN attachments in a single region, and configure regional dynamic routing on

the VPC

Configure two Partner Interconnect connections in one metro and two connections in another metro Make sure the Interconnect

connections are placed in different metro edge availability domains. Configure two VLAN attachments in one region and two VLAN

attachments in another region, and configure global dynamic routing on the VPC

Configure two Partner Interconnect connections in one metro and two connections in another metro. Make sure the Interconnect connections are placed in different metro edge availability domains. Configure two VLAN attachments in one region and two VLAN attachments in another region, and configure regional dynamic routing on the VPC.

Question 55

You are responsible for designing a new connectivity solution between your organization's on-premises data center and your Google Cloud Virtual Private Cloud (VPC) network Currently, there Is no end-to-end connectivity. You must ensure a service level agreement (SLA) of 99.99% availability What should you do?

Options:

Use one Dedicated Interconnect connection in a single metropolitan area. Configure one Cloud Router and enable global routing in the VPC.

Use a Direct Peering connection between your on-premises data center and Google Cloud. Configure Classic VPN with two tunnels and one Cloud Router.

Use two Dedicated Interconnect connections in a single metropolitan area. Configure one Cloud Router and enable global routing in the VPC.

Use HA VPN. Configure one tunnel from each Interface of the VPN gateway to connect to the corresponding interfaces on the peer gateway on-premises. Configure one Cloud Router and enable global routing in the VPC.

Question 56

You have an application running on Compute Engine that uses BigQuery to generate some results that are stored in Cloud Storage. You want to ensure that none of the application instances have external IP addresses.

Which two methods can you use to accomplish this? (Choose two.)

Options:

Enable Private Google Access on all the subnets.

Enable Private Google Access on the VPC.

Enable Private Services Access on the VPC.

Create network peering between your VPC and BigQuery.

Create a Cloud NAT, and route the application traffic via NAT gateway.

Question 57

Question:

Your organization wants to deploy HA VPN over Cloud Interconnect to ensure encryption in transit over the Cloud Interconnect connections. You have created a Cloud Router and two encrypted VLAN attachments that have a 5 Gbps capacity and a BGP configuration. The BGP sessions are operational. You need to complete the deployment of the HA VPN over Cloud Interconnect. What should you do?

Options:

Enable MACsec on Partner Interconnect.

Create an HA VPN gateway and associate the gateway with your two encrypted VLAN attachments. Configure the HA VPN Cloud Router, peer VPN gateway resources, and HA VPN tunnels. Use the same Cloud Router used for the Cloud Interconnect tier.

Create an HA VPN gateway and associate the gateway with your two encrypted VLAN attachments. Create a new dedicated HA VPN Cloud Router peer VPN gateway resources and HA VPN tunnels.

Enable MACsec for Cloud Interconnect on the VLAN attachments.

Question 58

You are planning to use Terraform to deploy the Google Cloud infrastructure for your company The design must meet the following requirements

• Each Google Cloud project must represent an Internal project that your team Will work on

• After an internal project is finished, the infrastructure must be deleted

• Each Internal project must have Its own Google Cloud project owner to manage the Google Cloud resources-

• You have 10-100 projects deployed at a time,

While you are writing the Terraform code, you need to ensure that the deployment IS Simple, and the code IS reusable With

centralized management What should you doo

Options:

Create a Single pt0Ject and additional VPCs for each Internal project

Create a Single Project and Single VPC for each internal project

Create a single Shared VPC and attach each Google Cloud project as a service project

Create a Shared VPC and service project for each Internal project

Answer:

Explanation:

The correct answer is C. Create a single Shared VPC and attach each Google Cloud project as a service project.

This answer is based on the following facts:

A Shared VPC allows you to share one or more VPC networks across multiple Google Cloud projects1. This simplifies the deployment and management of the network infrastructure, as you only need to create and maintain one VPC network for all your internal projects.

A Shared VPC consists of a host project that owns the VPC network and one or more service projects that use the VPC network2. You can attach and detach service projects as needed, depending on the lifecycle of your internal projects. You can also delete service projects without affecting the host project or other service projects.

A Shared VPC allows you to delegate administrative roles to different project owners3. You can grant the Shared VPC Admin role to the owner of the host project, who can manage the VPC network and its subnets. You can also grant the Service Project Admin role to the owners of the service projects, who can manage the Google Cloud resources in their own projects.

The other options are not correct because:

Option A is not suitable. Creating a single project and additional VPCs for each internal project will increase the complexity and cost of the network infrastructure. You will need to create and maintain multiple VPC networks, firewall rules, routes, and VPN tunnels. You will also have a limit on the number of VPC networks per project4.

Option B is not feasible. Creating a single project and single VPC for each internal project will not meet the requirement of having separate project owners for each internal project. You will have only one project owner who can manage all the Google Cloud resources in the same project.

Option D is not optimal. Creating a Shared VPC and service project for each internal project will not meet the requirement of having a simple and reusable code with centralized management. You will need to create and maintain multiple Shared VPCs, which will increase the complexity and cost of the network infrastructure. You will also have more Terraform code to write and manage for each Shared VPC.

Question 59

You have the networking configuration shown. In the diagram Two VLAN attachments associated With two Dedicated Interconnect connections terminate on the same Cloud Router (mycloudrouter). The Interconnect connections terminate on two separate on-premises routers. You advertise the same prefixes from the Border Gateway Protocol (BOP) sessions associated with each Of the VLAN attachments.

You notice an asymmetric traffic flow between the two Interconnect connections. Which of the following actions should you take to troubleshoot the asymmetric traffic flow?

Options:

From the Google Cloud console, navigate to the Hybrid Connectivity select the Cloud Router, and view BGP sessions.

From the Cloud CLI, run gcloud compute –protect_ID router get—status mycloudrouter —-region REGION and review the results.

From the Google Cloud console, navigate to Cloud Logging to view VPC Flow Logs and review the results

From the Cloud CLI. run gcloud compute routers describe mycloudrouter

--region REGION and review the results

Question 60

You have provisioned a Partner Interconnect connection to extend connectivity from your on-premises data center to Google Cloud. You need to configure a Cloud Router and create a VLAN attachment to connect to resources inside your VPC. You need to configure an Autonomous System number (ASN) to use with the associated Cloud Router and create the VLAN attachment.

What should you do?

Options:

Use a 4-byte private ASN 4200000000-4294967294.

Use a 2-byte private ASN 64512-65535.

Use a public Google ASN 15169.

Use a public Google ASN 16550.

Question 61

You work for a university that is migrating to Google Cloud.

These are the cloud requirements:

On-premises connectivity with 10 Gbps

Lowest latency access to the cloud

Centralized Networking Administration Team

New departments are asking for on-premises connectivity to their projects. You want to deploy the most cost-efficient interconnect solution for connecting the campus to Google Cloud.

What should you do?

Options:

Use Shared VPC, and deploy the VLAN attachments and Dedicated Interconnect in the host project.

Use Shared VPC, and deploy the VLAN attachments in the service projects. Connect the VLAN attachment to the Shared VPC's host project.

Use standalone projects, and deploy the VLAN attachments in the individual projects. Connect the VLAN attachment to the standalone projects' Dedicated Interconnects.

Use standalone projects and deploy the VLAN attachments and Dedicated Interconnects in each of the individual projects.

Question 62

You need to establish network connectivity between three Virtual Private Cloud networks, Sales, Marketing, and Finance, so that users can access resources in all three VPCs. You configure VPC peering between the Sales VPC and the Finance VPC. You also configure VPC peering between the Marketing VPC and the Finance VPC. After you complete the configuration, some users cannot connect to resources in the Sales VPC and the Marketing VPC. You want to resolve the problem.

What should you do?

Options:

Configure VPC peering in a full mesh.

Alter the routing table to resolve the asymmetric route.

Create network tags to allow connectivity between all three VPCs.

Delete the legacy network and recreate it to allow transitive peering.

Question 63

You have deployed a new internal application that provides HTTP and TFTP services to on-premises hosts. You want to be able to distribute traffic across multiple Compute Engine instances, but need to ensure that clients are sticky to a particular instance across both services.

Which session affinity should you choose?

Options:

None

Client IP

Client IP and protocol

Client IP, port and protocol

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