Huawei H19-338 HCSP-Presales-Storage Exam Practice Test

The model that is not included in the CloudEngine S7700 family is S7709. The CloudEngine S7700 family consists of three models: S7703, S7706, and S7712. These are smart routing switches designed for next-generation enterprise networks, with features such as wired and wireless convergence, unified user management, quality awareness, and SVF 2.04

M-LAG can be deployed on server leaf nodes in NOF+ scenarios. According to the Huawei CloudFabric Data Center Network Solution White Paper, NOF+ (Network-Oriented Fabric+) is a data center network architecture that supports both Layer 2 and Layer 3 connectivity between servers and leaf nodes. M-LAG (Multi-Chassis Link Aggregation Group) is a technology that enables multiple leaf nodes to form a logical device that provides high availability, load balancing, and simplified management.

The NE8000M1C supports dual AC/DC power modules. According to the NetEngine 8000 M1C Service Router Datasheet, NE8000M1C supports two power modules that can work in 1+1 redundancy mode. The power modules can be AC or DC power modules.

 Policy association achieves policy flexibility and network simplicity on large campus networks. With policy association, user access policies are centrally managed on the gateway devices and enforced by gateway and access devices. According to the Huawei CloudCampus Solution Description, policy association is a feature that allows user policies to be associated with user groups, service types, or service priorities, rather than IP addresses or VLANs. Policy association simplifies network configuration and management, and improves user experience.

CE6820 does not support 100GE uplink ports. According to the CloudEngine S6800 Series Switches Datasheet, CE6820 supports 48 x 10GE ports and 4 x 40GE ports, but not 100GE ports.

Spine nodes are core nodes on the fabric network, but they do need to support VXLAN in some scenarios. According to the Data Center Networking: What It Is, Why It Matters, And Types article, VXLAN is a tunnel encapsulation technology that allows overlay networks to be created on top of the underlay network. Spine nodes need to support VXLAN when they act as gateways between different overlay networks or between overlay and underlay networks.

USG6680E, USG6712E, and USG6716E are firewalls that are recommended for data centers. They provide high-performance security protection, virtualization, and cloud management capabilities for data center networks. USG12004 and USG12008 are not firewalls, but routers that are designed for enterprise WANs.

The WAN-side controller can manage only WAN services, not LAN services. The LAN-side controller can manage both LAN and WAN services. This is because the LAN-side controller supports both SD-WAN and SD-Campus functions, while the WAN-side controller only supports SD-WAN functions.

RU-5G-101 supports independent deployment. According to the Huawei RU-5G-101 Datasheet2, RU-5G-101 is a high-speed wireless WAN access component that provides 5G wireless broadband access services for enterprises to implement wireless high-bandwidth data transmission. An RU-5G can be deployed independently to provide basic router functions.

The leader AP does not establish a CAPWAP tunnel with the fit AP. The leader AP communicates with the fit AP through the management VLAN, and the fit AP establishes a CAPWAP tunnel with the AC. In tunnel forwarding mode, user traffic needs to pass through the leader AP. In direct forwarding mode, user traffic is directly transmitted from the AP egress rather than from the leader AP. In tunnel forwarding mode, the leader AP can manage more fit APs than in direct forwarding mode.

SmartRadio is a technology that provides intelligent radio resource management for wireless networks. SmartRadio includes several features, such as Dynamic Frequency Assignment (DFA), which automatically adjusts the frequency allocation based on the interference situation; Intelligent load balancing, which distributes users among APs based on user density and traffic load; and Airtime fair scheduling, which allocates airtime resources fairly among users with different rates. Enhanced distributed channel access (EDCA) is not a feature of SmartRadio, but a standard mechanism defined by IEEE 802.11e to provide QoS differentiation for wireless multimedia applications.

CloudCampus Solution is a cloud-based network management platform that provides plug-and-play of devices using three common deployment modes: QR code scanning for deployment, DHCP Option 148, and registration query center deployment . QR code scanning for deployment allows users to scan the QR code on the device label using a mobile app and automatically add the device to the cloud platform . DHCP Option 148 allows devices to obtain the cloud platform address from a DHCP server and automatically register with the cloud platform . Registration query center deployment allows devices to obtain the cloud platform address from a registration query center server and automatically register with the cloud platform . These deployment modes simplify the network configuration and management process and reduce the OPEX .

NE8000 M1A and F1A are not both 220 mm deep. According to the Huawei NetEngine 8000 M14 Routers Support Guide, NE8000 M1A is 220 mm deep, but NE8000 F1A is 400 mm deep.

BGP EVPN is a control plane protocol that can be used for VXLAN networks . VXLAN is a technology that creates overlay networks to extend Layer 2 connectivity across Layer 3 networks . BGP EVPN has the following functions as a VXLAN control plane protocol:

• It automatically establishes the VXLAN tunnel between VTEPs (VXLAN Tunnel Endpoints), which are devices that encapsulate and decapsulate VXLAN packets . You do not need to manually configure a full-mesh tunnel between all VTEPs, which reduces the configuration complexity and improves the scalability .
• It advertises host routes and MAC address entries on the control plane, which are used to learn the location of hosts and their corresponding VTEPs . This reduces the unknown traffic flooding that occurs when the destination MAC address is unknown, and optimizes the packet forwarding by using optimal paths .
• It implements Layer 2 interconnection between data centers in different networking modes, such as bridging, routing, or integrated routing and bridging (IRB) . This enables seamless communication between hosts in different subnets or VLANs across data centers .
• It advertises subnet routes to implement Layer 3 interconnection of data centers through VXLAN tunnels . This enables routing between different subnets or VLANs across data centers without requiring an external gateway device .

The built-in LAN ports on all Huawei NetEngine AR6000/600 series routers can be used as WAN ports. According to the NetEngine AR6000 Series Enterprise Routers Product Overview, NetEngine AR6000/600 series routers support flexible WAN/LAN port configuration, which allows users to use any built-in LAN port as a WAN port.

The redundancy design of key components of the S12700E series switches can achieve 99.999% reliability. According to the CloudEngine S12700E Series Switches Datasheet, CloudEngine S12700E series switches support N+1 backup for MPUs, SFUs, CMUs, and power modules, as well as hot swapping for all components, ensuring high availability and reliability.

AirEngine 6760R-51E is a Wi-Fi 6 AP designed for rail transit scenarios. It supports 8x8 MU-MIMO and eight spatial streams, achieving a rate of up to 5.95 Gbit/s2. AirEngine 6761-21T is a Wi-Fi 6 AP designed for indoor scenarios such as offices and classrooms. AirEngine 6760-X1E is a Wi-Fi 6 AP designed for indoor scenarios such as hotels and shopping malls. AirEngine 6760-51EI is a Wi-Fi 6 AP designed for indoor scenarios such as stadiums and exhibition halls.

In the headquarters-branch VXLAN interconnection scenario, single-fabric networking is not supported. According to the Huawei CloudCampus Solution Description, headquarters-branch VXLAN interconnection is a scenario that connects multiple campus networks over a WAN using VXLAN tunnels. In this scenario, each campus network forms an independent fabric network with its own controller and gateway devices. Single-fabric networking is a scenario that connects multiple campus networks over a LAN usingVXLAN tunnels. In this scenario, all campus networks share the same fabric network with a unified controller and gateway devices.