QUESTION 61
For enterprises, which of the following are advantages of using carriers’ private lines?

A. Low lease cost
B. Low maintenance cost
C. High security
D. High network performance

Correct Answer: BCD
QUESTION 62
Which of the following statements are true about the carrier-resale SD-WAN scenario?

A. Enterprises use SD-WAN gateways to connect SD-WAN networks to traditional carrier backbone networks.
B. Carriers provide SD-WAN services for multiple enterprises through iMaster NCE-WAN.
C. Enterprises either manage and control their SD-WAN services based on the tenant permissions assigned by carriers, or they entrust their SD-WAN services to carriers for management and control.
D. Enterprises, as tenants, lease SD-WAN services from carriers. An enterprise tenant can manage and control the SD-WAN services of all of its sites but cannot view the SD-WAN services of other tenants.

Correct Answer: ABCD
QUESTION 63
IPsec uses an asymmetric encryption algorithm to encrypt the symmetric algorithm key, which it uses to encrypt/decrypt data, ensuring security and performance.

A. True
B. False

Correct Answer: A
QUESTION 64
In the following figure, a GRE tunnel is established between R1 and R4 to transmit data from PC1 to PC2. The TTL of the packet sent from GE0/0/1 of R1 is 126. What is the TTL of the packet sent from GE0/0/3 of R3?

A. 126
B. 127
C. 124
D. 125

Correct Answer: C
QUESTION 65
GRE tunnels can transmit IPv4 and IPv6 unicast, multicast, and broadcast packets.

A. True
B. False

Correct Answer: A
QUESTION 66
Which of the following methods can be used to establish IPsec SAs?

A. Manually establish IPsec SAs.
B. Establish IPsec SAs in IKE auto-negotiation mode.
C. Establish IPsec SAs through certificate negotiation.
D. Establish IPsec SAs through template negotiation.

Correct Answer: AB
QUESTION 67
Which of the following encapsulation modes are supported by IPsec?

A. Switching mode
B. Transport mode
C. Tunnel mode
D. Routing mode

Correct Answer: BC
QUESTION 68
In Huawei SD-WAN Solution, which of the following information types is transmitted through EVPN?

A. NAT configuration
B. Service route
C. IPsec SA information
D. TNP route

Correct Answer: BCD
QUESTION 69
What are the functions of EVPN Ethernet A-D routes?

A. ESI label advertisement
B. EVPN aliasing
C. MAC address learning and advertisement
D. Batch withdrawal of MAC addresses

Correct Answer: ABD
QUESTION 70
EVPN is a VPN technology that provides only Layer 2 network interconnection.

A. True
B. False

Correct Answer: B
QUESTION 71
Which of the following overlay topologies are supported by Huawei SD-WAN Solution?

A. Hub-spoke
B. Partial-mesh
C. Hierarchical networking
D. Full-mesh

Correct Answer: ABCD
QUESTION 72
Which of the following token bucket modes is suitable for processing persistent burst traffic?

A. Single-rate-two-bucket
B. Two-rate-single-bucket
C. Single-rate-single-bucket
D. Two-rate-two-bucket

Correct Answer: D
QUESTION 73
QoS functions are executed in a certain sequence. Sort the following QoS functions into the correct sequence.

Select and Place:

Correct Answer:

QUESTION 74
An enterprise has three types of services. Voice and video services are key services and need to be guaranteed, and FTP services are non-key services. Which of the following scheduling modes is optimal for satisfying the service requirements?

A. WFQ scheduling is configured for IP voice, video, and FTP download services.
B. PQ scheduling is configured for IP voice and video services, and WFQ scheduling is configured for FTP download services.
C. LPQ scheduling is configured for IP voice services, PQ scheduling is configured for video services, and WFQ scheduling is configured for FTP download services.
D. PQ scheduling is configured for IP voice, video, and FTP download services.

Correct Answer: C
QUESTION 75
A carrier’s home broadband service requires a maximum downstream bandwidth of 100 Mbit/’s during off-peak hours and a guaranteed downstream bandwidth of 50 Mbit/s during peak hours. The home broadband service includes the home IP phone service and the home Internet access service. Which of the following configurations best meets the service requirement?

A. qos gts cir 100000

B. qos car inbound cir 100000 pir 50000
C. qos car inbound cir 50000 pir 100000
D. qos car inbound cir 100000

Correct Answer: C
QUESTION 76
SAC is used to identify applications. Which signature databases does SAC depend on to identify applications?

A. SC signature database
B. SA signature database
C. FBI signature database
D. FPI signature database

Correct Answer: BD
QUESTION 77
Which of the following services cannot be detected by NQA?

A. UDP
B. ICMP
C. FTP
D. ARP

Correct Answer: D
QUESTION 78
Which of the following network performance indicators can be detected by IP FPM?

A. Packet loss rate
B. Delay
C. Network jitter
D. Network bandwidth

Correct Answer: ABC
QUESTION 79
Which of the following parameters can be used by SPR to select a forwarding path?

A. Jitter
B. Delay
C. Packet loss rate
D. Composite measure indicator (CMI)

Correct Answer: ABCD
QUESTION 80
BFD can detect the connectivity of direct links but cannot detect the connectivity of multi-hop links that span multiple routers.

A. True
B. False

Correct Answer: B