QUESTION 81
Which of the following technologies is used by IP FPM to detect the packet loss rate, delay, or jitter of specific traffic?

A. Packet blocking technology
B. Token bucket technology
C. Packet coloring technology
D. Packet simulation technology

Correct Answer: C
QUESTION 82
In Huawei SD-WAN Solution, which of the following technologies can be associated with NQA?

A. VRRP
B. OSPF
C. Interface backup
D. Static route

Correct Answer: ABD
QUESTION 83
Huawei AR series routers provide routing, switching, security, voice, and WLAN functions, reducing investment of enterprise users.

A. True
B. False

Correct Answer: A
QUESTION 84
Which of the following methods is used to generate URLs used in email-based deployment?

A. iMaster NCE-WAN
B. Manual configuration
C. Web browser
D. Email server

Correct Answer: A
QUESTION 85
Telemetry needs to send a query packet each time the device status is queried.

A. True
B. False

Correct Answer: B
QUESTION 86
The network management personnel of a company finds that a large number of packets are lost on the egress device, and then checks the interface status (as shown in the following figure). The network management personnel finds that the packet loss is caused by a large number of error packets received by the device based on the                    count value of the parameter. (Enter only uppercase letters.)

Correct Answer: CRC
QUESTION 87
Which of the following protocols can be used by network management personnel or software to deliver device configurations?

A. SNMP
B. SSH
C. Telemetry
D. NETCONF

Correct Answer: ABD

QUESTION 88
If the MAC ADDRESS field in an ARP entry is Incomplete, the ARP entry is a temporary ARP entry.

A. True
B. False

Correct Answer: A
QUESTION 89
Which of the following WAN link types are supported by Huawei SD-WAN Solution?

A. LTE link
B. MPLS link
C. Internet link
D. Private line

Correct Answer: ABCD
QUESTION 90
SD-WAN is a solution that is crucial to enterprises’ cloudification.

A. True
B. False

Correct Answer: A
QUESTION 91
In Huawei SD-WAN Solution, a CPE can be managed by iMaster NCE-WAN only after it establishes a control channel with iMaster NCE-WAN.

A. True
B. False

Correct Answer: B
QUESTION 92
In Huawei SD-WAN Solution, which of the following types of information are exchanged between devices at different sites through control channels?

A. User network route

B. Tunnel encryption information
C. VPN topology definition
D. Tunnel encapsulation information

Correct Answer: ABD
QUESTION 93
On live networks, two private network devices often need to communicate with each other. Which of the following technologies cannot meet this requirement?

A. NAT ALG
B. STUN
C. Dynamic NAT
D. NAPT

Correct Answer: CD
QUESTION 94
In Huawei SD-WAN Solution, which of the following technologies is used by the control channel to encrypt control information?

A. TLS
B. IPsec
C. DTLS
D. SSH

Correct Answer: B
QUESTION 95
STUN is used to obtain hole punching information on NAT devices. Which of the following information cannot be obtained using STUN?

A. Public IP address
B. Private IP address
C. Public port number
D. Public network protocol number

Correct Answer: D
QUESTION 96
Which of the following packet encapsulation formats is used by the SD-WAN data channel by default?

A. DTLS
B. GRE
C. VXLAN
D. L2TP

Correct Answer: B
QUESTION 97
In Huawei SD-WAN Solution, if a traffic steering policy using the Prefer mode is configured for a specific application, traffic of the application may be forwarded over multiple links at the same time.

A. True
B. False

Correct Answer: B
QUESTION 98
Which of the following are advantages of FEC in Huawei SD-WAN Solution?

A. Unlike TCP, FEC does not need to retransmit packets and has high real-time performance.
B. Unlike the XOR algorithm, the RS algorithm can recover multiple lost packets in an encoding block, mitigating burst packet loss on the network.
C. A-FEC is supported to reduce the occupied bandwidth.

Correct Answer: ABC
QUESTION 99
FEC creates extra network latency and is therefore not suitable for latency-sensitive services.

A. True
B. False

Correct Answer: B
QUESTION 100
In Huawei SD-WAN Solution, which of the following queues is used for Medium-priority Qos scheduling?

A. LLQ
B. BF
C. AF
D. EF

Correct Answer: C