QUESTION 41
Which of the following components of OpenStack provides virtual computing resources for the cloud platform?

A. Nova
B. Swift
C. Neutron
D. Keystone

Correct Answer: A
QUESTION 42
Which of the following security deployment solutions are supported on a data center network?

A. SFC diverts north-south traffic in a VPC to multiple VAS devices to implement diverse security services.
B. Inter-subnet traffic between different VPCs can traverse the firewall for security control.
C. SFC diverts east-west traffic in a VPC to VAS devices for security access control.
D. VAS devices implement security control when users outside the DC access servers inside the DC.

Correct Answer: ABCD
QUESTION 43
A data center network uses the distributed network overlay solution and uses the spine-leaf architecture. The VXLAN control plane uses BGP EVPN. Which of the following statements about BGP EVPN are true?

A. Devices on the data center network use BGP EVPN to dynamically establish VXLAN tunnels.
B. Spine devices can be independently deployed and function as RRs to establish BGP EVPN peer groups with leaf nodes.
C. If the data center network interconnects with iMaster NCE-Fabric through a northbound API, iMaster NCE-Fabric can use Telemetry to deliver BGP EVPN configurations to NVE devices.
D. MAC, host, and subnet routes learned by a device can be synchronized across the entire network through BGP EVPN.

Correct Answer: ABD
QUESTION 44

An enterprise plans to deploy the Huawei CloudFabric Solution. The following figure shows the production intranet fabric of the enterprise’s DC, which uses the distributed network overlay mode. The enterprise communicates with other networks through intranet core switches. Which of the following statements about this network deployment is false?

A. M-LAG is deployed between the border leaf nodes to enhance network reliability.
B. The border leaf nodes function as service leaf nodes and connect to firewalls.
C. The spine nodes function as Layer 3 gateways to centrally manage the network.
D. OSPF is deployed on the underlay network, and IBGP EVPN is deployed on the overlay network.

Correct Answer: C
QUESTION 45
Based on the Huawei-developed big data analytics platform, iMaster NCE-Fabricinsight receives data from network devices in Telemetry mode and uses intelligent

algorithms to analyze network data.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 46
Which of the following is not an intelligent O&M method provided by the Huawei CloudFabric Solution?

A. Active/standby switchover of LBs via one click
B. Three-layer topology visibility
C. Detailed service path information on a per-hop basis
D. Automatic loop detection, locating, and elimination through mechanisms such as traffic collection and event correlation

Correct Answer: A
QUESTION 47
Which of the following load balancing algorithms are applicable to servers in data centers?

A. Round robin: The LB distributes each request sequentially around the server list.
B. Least connections: The LB preferentially selects the server with the least connections. This algorithm is recommended in scenarios where most sessions have a long period.
C. Hash: chooses a server to which a DNS request is forwarded based on the request’s source IP address. This ensures that specific users can be connected to the same server.
D. Random: The LB randomly distributes traffic based the weight.

Correct Answer: ABCD
QUESTION 48
MPLS is located between the data link layer and network layer in the TCP/IP protocol stack, and can provide services for all network layer protocols.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 49
Which of the following issues does DiffServ model-based QoS have?

A. Independent resources cannot be provided for users.
B. It does not change service behaviors. If bursty traffic in a single flow is too heavy, congestion still occurs.
C. It involves only single-hop behaviors and does not change the network topology.
D. The number of queues is small, and SLA assurance cannot be provided for specific users. As a result, deterministic delay assurance cannot be provided.

Correct Answer: ABD
QUESTION 50
LSRs are classified into which of the following types based on how they process MPLS data packets?

A. Core LSR
B. Transit LSR
C. Ingress LSR
D. Egress LSR

Correct Answer: BCD
QUESTION 51
An LSP established based on bandwidth or path constraints is called a                       (Enter the acronym in uppercase letters.)
Correct Answer: CR-LSP
QUESTION 52
This figure shows an SRv6 packet. If the Destination Address field in the IPv6 basic header is FC04::4, the value of the SL field in the SRv6 header should be               .(Enter only digits.)

Correct Answer: 1
QUESTION 53
Which of the following can be used to set the internal priority of packets in behavior aggregate classification (priority mapping)?

A. DSCP value
B. Source or destination IP address
C. MPLS EXP value
D. Traffic class

Correct Answer: ACD
QUESTION 54
MPLS LDP can be used to construct BGP/MPLS IP VPN tunnels. Which of the following statements about MPLS LDP is false?

A. LDP RSVP-TE, and MP-BGP share the label space ranging from 1024 to 1048575.
B. MPLS LDP tunnels are established based on the shortest IP paths and do not support the planning of tunnel forwarding paths.
C. BGP/MPLS IP VPN is widely used on the bearer WANs of carriers and enterprises due to its simple configuration and maintenance.
D. By default, Huawei devices use the downstream unsolicited (DU) label advertisement mode, ordered label control mode, and liberal label retention mode.

Correct Answer: A
QUESTION 55
Which of the following statements is false about the IPv4 address is design rules for the enterprise bearer WAN?

A. Hosts on the backbone network must use unique IP addresses. Even if VPN technology supporting address overlapping is used, two hosts in different VPNs cannot use the same Ip address.
B. Routes with contiguous IP addresses can be easily summarized on a hierarchical network, reducing the routing table size and accelerates route calculation.
C. Ip addresses need to be reserved at each layer to ensure contiguity of addresses when the network is expanded.
D. Each address must be meaningful, allowing you to determine the device to which it belongs.

Correct Answer: A
QUESTION 56
Which of the following protocols is used by MPLS TE to allocate MPLS labels?

A. IGP
B. RSVP-TE
C. LDP
D. PCEP

Correct Answer: B
QUESTION 57
A VPDN is a VPN constructed on a public network. Which of the following is a VPDN?

A. L2TP VPN
B. VPLS
C. GRE VPN
D. IPsec VPN

Correct Answer: A

QUESTION 58
Which of the following statements about the IGP on a bearer WAN is false?

A. Compared with IS-IS, OSPF offers better support for SR-MPLS.
B. Compared with OSPF, IS-IS offers better support for SRv6.
C. On an IPv4/IPv6 dual-stack network, OSPF consumes more resources.
D. IS-IS supports a larger network scale than OSPF.

Correct Answer: A
QUESTION 59
MPLS LDP and MPLS TE both support the establishment of dynamic LSPs. However, compared with MPLS TE, which of the following is not an advantage of MPLS LDP?

A. ECMP
B. Easy scalability
C. Simple configuration
D. Support for TE

Correct Answer: D
QUESTION 60
An SR-MPLS Policy needs to divert service traffic to a tunnel for forwarding. If traffic from various services is destined for the same address, which of the following traffic diversion modes is recommended to ensure the quality of each service?

A. DSCP-based traffic diversion
B. 5-tuple-based traffic diversion
C. Color-based traffic diversion
D. Endpoint-based traffic diversion

Correct Answer: A