QUESTION 1
In Huawei SD-WAN Solution, AR routers mainly function as egress gateways, wireless access gateways, and VPN gateways on enterprise LANs.

A. True
B. False

Correct Answer: A
QUESTION 2
Self-bult networks of government, education, and organizations are not enterprise WANs.

A. True
B. False

Correct Answer: B
QUESTION 3
Which of the following roles are often involved in the SD-WAN business model?

A. SD-WAN device vendor
B. Carrier
C. Enterprise user
D. MSP

Correct Answer: ABCD
QUESTION 4
If the K bit in the GRE header is set to 1, a 4-byte Key field is inserted into the GRE header. The sender and receiver then authenticate each other based on this key.

A. True
B. False

Correct Answer: A
QUESTION 5
Which of the following statements about GRE is false?

A. GRE is easy to implement and puts little burden on devices at both ends of a tunnel.
B. GRE can encapsulate IPv6 unicast packets.
C. GRE can encapsulate IPv6 broadcast packets.
D. GRE can encapsulate IPv4 unicast packets.

Correct Answer: C
QUESTION 6
IKEv1 phase 2 negotiation works in either fast or slow mode, of which the slow mode is more secure.

A. True
B. False

Correct Answer: B
QUESTION 7
In the following figure, a GRE tunnel is established between R1 and R2. If the ping -a 10.1.1.1 10.3.1.1 command s run on R1, which of the following statements is true about the ICMP packet sent by GE0/0/1 of R1?

A. The packet will be encapsulated using GRE, and the source and destination IP addresses in the outer IP header are 10.0.12.1 and 10.3.1.1, respectively.
B. The packet will be encapsulated using GRE, and the source and destination IP addresses in the inner IP header are 10.1.1.1 and 10.3.1.1, respectively.
C. The packet will be encapsulated using GRE, and the source and destination IP addresses in the outer IP header are 10.0.12.1 and 10.0.12.2, respectively.
D. The packet will be encapsulated using GRE, and the source and destination IP addresses in the inner IP header are 10.1.1.1 and 10.0.12.2, respectively.

Correct Answer: BC
QUESTION 8
The following figure shows an IPsec packet in tunnel mode. Drag the packet header to the correct position.

Select and Place:

Correct Answer:

QUESTION 9
Which of the following is a data encryption algorithm?

A. SHA-256
B. SHA1
C. MD5
D. DES

Correct Answer: D
QUESTION 10
Drag the IPsec functions on the left to the corresponding function description on the right.
Select and Place:

Correct Answer:

QUESTION 11
Which of the following functions cannot be implemented through MAC/IP advertisement routes in EVPN?

A. MAC address learning and advertisement
B. MAC address mobility
C. EVPN aliasing
D. MAC/IP binding

Correct Answer: C
QUESTION 12
In Huawei SD-WAN Solution, which of the following are included in TNP?

A. Site ID
B. CPE Router ID
C. Transport network-ID
D. WAN-side interface IP address

Correct Answer: ABCD
QUESTION 13
What are the functions of EVPN Ethernet A-D routes?

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

Correct Answer: AD
QUESTION 14
On an SD-WAN network, there are multiple steps in the process from CPE onboarding to user data forwarding. Arrange the following steps in the correct order.
Select and Place:

Correct Answer:

QUESTION 15
Which of the following statements about traffic policing is true?

A. Traffic policing can be used only in the inbound direction.
B. Traffic policing discards excess traffic.
C. Traffic policing buffers excess traffic.
D. Traffic policing can be used only in the outbound direction.

Correct Answer: B
QUESTION 16
Which of the following statements about the SP scheduling algorithm is false?

A. If the SP scheduling algorithm is a used and a high-priority queue occupies a large amount of bandwidth, the low-priority queue may be starved.
B. When the SP scheduling algorithm is used to schedule multiple ow-priority queues, the data packets that enter the queue first are forwarded first.
C. The SP scheduling algorithm preferentially schedules high-priority queues.
D. To ensure the quality of key services, the SP algorithm can be used to schedule services and set the minimum bandwidth.

Correct Answer: D
QUESTION 17
Refer to the configuration in the figure. Which queue on R2 do packets of PC1 enter by default?

A. AF2
B. AF3
C. EF
D. AF4

Correct Answer: B
QUESTION 18
Which of the following token bucket technologies is used for traffic shaping?

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

Correct Answer: D
QUESTION 19
Congestion avoidance takes precedence over congestion management on a device.

A. True
B. False

Correct Answer: A
QUESTION 20
In HQoS scenarios, which of the following queue scheduling modes can be used for flow queues and subscriber queues?

A. PQ
B. WFQ+WRR
C. WFQ+PQ
D. WFQ

Correct Answer: ACD