You deploy your Internet-facing application is the us-west-2(Oregon) region. To manage this application and upload content from your corporate network, you have a 1–Gbps AWS Direct Connect connection with a private virtual interface via one of the associated Direct Connect locations. In normal operation, you use approximately 300 Mbps of the available bandwidth, which is more than your Internet connection from the corporate network.
You need to deploy another identical instance of the application is us-east-1(N Virginia) as soon as possible. You need to use the benefits of Direct Connect. Your design must be the most effective solution regarding cost, performance, and time to deploy.
Which design should you choose?
A network engineer is deploying an application on an Amazon EC2 instance. The instance is reachable within the VPC through its private IP address and from the internet using an elastic IP address. Clients are connecting to the instance over the Internet and within the VPC, and the application needs to be identified by a single custom Fully Qualified Domain Name that is publicly resolvable –‘app.example.com’.
Instances within the VPC should always connect to the private IP to minimize data transfer costs.
How should the engineer configure DNS to support these requirements?
A company uses a single connection to the internet when connecting its on-premises location to AWS. It has selected an AWS Partner Network (APN) Partner to provide a point-to-point circuit for its first-ever 10 Gbps AWS Direct Connect connection.
What steps must be taken to order the cross-connect at the Direct Connect location?
A customer has set up multiple VPCs for Dev, Test, Prod, and Management. You need to set up AWS Direct Connect to enable data flow from on-premises to each VPC. The customer has monitoring software running in the Management VPC that collects metrics from the instances in all the other VPCs. Due to budget requirements, data transfer charges should be kept at minimum.
Which design should be recommended?
A company is running services in a VPC with a CIDR block of 10.5.0.0/22 End users report that they no longer can provision new resources because some ot the subnets in theVPC have run out of IP addresses
How should a network engineer resolve this issue?
Your company’s policy requires that all VPCs peer with a “common services: VPC. This VPC contains a fleet of layer 7 proxies and an Internet gateway. No other VPC is allowed to provision an Internet gateway. You configure a new VPC and peer with the common service VPC as required by policy. You launch an Amazon EC2. Windows instance configured to forward all traffic to the layer 7 proxies in the common services VPC. The application on this server should successfully interact with Amazon S3 using its properly configured AWS Identity and Access Management (IAM) role. However, Amazon S3 is returning 403 errors to the application.
Which step should you take to enable access to Amazon S3?
An architecture is being designed to support an Amazon WorkSpaces deployment of 1,000 desktops.
Which architecture will support this deployment while allowing for future expansion?
You are designing an AWS Direct Connect solution into your VPC. You need to consider requirements for the customer router to terminate the Direct Connect link at the Direct Connect location.
Which three factors that must be supported should you consider when choosing the customer router? (Select three.)
A company is connecting to a VPC over an AWS Direct Connect using a private VIF, and a dynamic VPN connection as a backup. The company's Reliability Engineering team has been running failover and resiliency tests on the network and the existing VPC by simulating an outage situation on the Direct Connect connection. During the resiliency tests, traffic failed to switch over to the backup VPN connection.
How can this failure be troubleshot?
Your company maintains an Amazon Route 53 private hosted zone. DNS resolution is restricted to a single, pre-existing VPC. For a new application deployment, you create an additional VPC in the same AWS account. Both this new VPC and your on-premises DNS infrastructure must resolve records in the existing private hosted zone.
Which two activities are required to enable DNS resolution both within the new VPC and from the on-premises infrastructure? (Select two.)
A company’s web application is deployed on Amazon EC2 instances behind a public Application Load Balancer. The application flags malicious requests and uses an AWS Lambda function to add the offending IP addresses to the network ACL to block any further request for 24 hours. Recently, the application has been receiving more malicious requests, which causes the network ACL to reach its limit of allowed entries.
Which action should be taken to block more IP addresses, without compromising the existing security requirements?
An IT company wants to securely perform an on-off migration of its on-premises VMs to the AWS Cloud by using AWS Server Migration Service {AWS SMS) For the first phase of the migration, the company must migrate 50 development VMs m batches during non-peak times over the next 7 days The VMs are between 2 GB and 5 GB in size The company has 1 Gbps of available bandwidth over the internet
Which network connectivity option meets these requirements MOST cost-effectively?
An AWS CloudFormation template is being used to create a VPC peering connection between two existing operational VPCs, each belonging to a different AWS account. All necessary components in the ‘Remote’ (receiving) account are already in place.
The template below creates the VPC peering connection in the Originating account. It contains these components:
AWSTemplateFormation Version: 2010-09-09
Parameters:
Originating VCId:
Type: String
RemoteVPCId:
Type: String
RemoteVPCAccountId:
Type: String
Resources:
newVPCPeeringConnection:
Type: ‘AWS::EC2::VPCPeeringConnection’
Properties:
VpcdId: !Ref OriginatingVPCId
PeerVpcId: !Ref RemoteVPCId
PeerOwnerId: !Ref RemoteVPCAccountId
Which additional AWS CloudFormation components are necessary in the Originating account to create an operational cross-account VPC peering connection with AWS CloudFormation? (Select two.)
Your company operates a single AWS account. A common services VPC is deployed to provide shared services, such as network scanning and compliance tools. Each AWS workload uses its own VPC, and each VPC must peer with the common services VPC. You must choose the most efficient and cost effective approach.
Which approach should be used to automate the required VPC peering?
The Security department has mandated that all outbound traffic from a VPC toward an on-premises datacenter must go through a security appliance that runs on an Amazon EC2 instance.
Which of the following maximizes network performance on AWS? (Choose two.)
A network engineer is managing two AWS Direct Connect connections. Each connection has a public virtual interface configured with a private ASN. The engineer wants to configure active/passive routing between the Direct Connect connections to access Amazon public endpoints. What BGP configuration is required for the on-premises equipment? (Select two.)
You are building an application in AWS that requires Amazon Elastic MapReduce (Amazon EMR). The application needs to resolve hostnames in your internal, on-premises Active Directory domain. You update your DHCP Options Set in the VPC to point to a pair of Active Directory integrated DNS servers running in your VPC.
Which action is required to support a successful Amazon EMR cluster launch?
A space exploration firm possesses a collection of telescopes that take many photographs and data of the night sky. The pictures and data are processed on an AWS Fargate application that is allocated to a target group by an Application Load Balancer (ALB). The program is accessible at https://space.example.com.
Additionally, scientists demand a custom-built application that is hosted on many Amazon EC2 instances inside an Auto Scaling group. This application will be accessible at the following link: https://space.example.com/meteor. The firm need a system that can grow automatically from a low number of requests overnight to a high volume of demands during a future meteor shower.
What is the MOST OPTIMAL option that satisfies these requirements?
A Lambda function needs to access the private address of an Amazon ElastiCache cluster in a VPC. The Lambda function also needs to write messages to Amazon SQS. The Lambda function has been configured to run in a subnet in the VPC.
Which of the following actions meet the requirements? (Select two.)
Your organization requires strict adherence to a change control process for its Amazon Elastic Compute Cloud (EC2) and VPC environments. The organization uses AWS CloudFormation as the AWS service to control and implement changes. Which combination of three services provides an alert for changes made outside of AWS CloudFormation? (Select three.)
You are moving a two-tier application into an Amazon VPC. An Elastic Load Balancing (ELB) load balancer is configured in front of the application tier. The application tier is driven through RESTful interfaces. The data tier uses relational database service (RDS) MySQL. Company policy requires end-to-end encryption of all data in transit. in front
What ELB configuration complies with the corporate encryption policy?
A company has established an AWS Direct Connect connection between its customer gateway at its on-premises data center and a virtual private gateway m the AWS Cloud The BGP routing protocol configuration includes the Autonomous System Number {ASN) of 7224 on the AWS end of the connection and the BGP ASN of 65004 on the company end of the connection
The company's IT administrators report that servers that run at the on-premises data center are not able to communicate with the company's web application that runs on a fleet of Amazon EC2 Instances A network engineer performs initial troubleshooting The network engineer finds that the private VIF is operational and that there is a fully established BGP peering session However, the company still cannot route traffic over the private VIF
Which of the following is a possible cause of this connectivity issue?
DNS name resolution must be provided for services in the following four zones:
company.private.
emea.company.private.
apac.company.private.
amer.company.private.
The contents of these zones is not considered sensitive, however, the zones only need to be used by services hosted in these VPCs, one per geographic region. Each VPC should resolve the names in all zones.
How can you use Amazon route 53 to meet these requirements?