QUESTION 121
Which of the following fields in the data header cannot be used for behavior aggregate (BA) classification?

A. DSCP
B. Protocol
C. 802.1p
D. EXP

Correct Answer: B
QUESTION 122
Congestion avoidance technology can prevent congestion on an interface.

A. True
B. False

Correct Answer: B
QUESTION 123
Which of the following are common technologies used the DiffServ model?

A. Congestion avoidance
B. WAN acceleration
C. Congestion management
D. Traffic rate limiting

Correct Answer: ACD
QUESTION 124
Which of the following technologies can be used by VRRP to monitor uplinks?

A. Link aggregation
B. Ping
C. BFD
D. NQA

Correct Answer: CD
QUESTION 125
Typically, the network management software uses open northbound interfaces to connect to management platforms of companies. Which of the following are northbound interfaces?

A. BGP LS
B. REST
C. SNMP
D. NETCONF

Correct Answer: BCD
QUESTION 126
Which of the following packets is used by SNMP to notify alarms?

A. SNMP Trap
B. SNMP Put
C. SNMP Reply
D. SNMP Request

Correct Answer: A
QUESTION 127
Which of the following packets are usually used as communication packets for REST?

A. BGP packets
B. HTTP packets
C. FTP packets
D. SNMP messages

Correct Answer: B
QUESTION 128
Which of the following channels are involved in Huawei SD-WAN Solution?

A. Orchestratlon channel
B. Control channel
C. Data channel
D. Management channel

Correct Answer: ABCD
QUESTION 129
Which of the following devices can be managed by iMaster NCE WAN? Choose one

A. USG firewall
B. AR router
C. NE router
D. S series switch

Correct Answer: B
QUESTION 130
Which of the following statements are true about the hub-spoke topology in Huawei SD- WAN Solution?

A. In the hub-spoke topology, dual hub sites can be deployed.
B. In the hub-spoke topology, different spoke sites use different hub sites as their primary hubs, implementing active-active hub sites.
C. In the hub-spoke topology, active-active hub sites based on network segments can be deployed.
D. In the hub-spoke topology, four hub sites can be deployed.

Correct Answer: ABC
QUESTION 131
When a packet is transmitted over a data channel, in which part of the packet is the VN ID of traffic from different VPNs encapsulated?

A. Extended GRE header
B. ESP field
C. Outer IP header of the tunnel
D. UDP header

Correct Answer: A
QUESTION 132
After NAT mapping entry is triggered by the first packet, to ensure that the subsequent return traffic can be forwarded normally, the NAT mapping entry will not be aged.

A. True
B. False

Correct Answer: B
QUESTION 133
Which of the following statements is false about the dual hubs working in active/standby mode in the hub-spoke networking?

A. The dual-hub networking Is supported, on which one or two CPEs can be deployed at each hub site.
B. The two hub sites can work only in active/standby mode, and not in active-active mode.
C. A branch can directly access the intranet of the standby hub site, without the need to traverse the active hub site.
D. Traffic from a branch to the Intranet of the standby hub site needs to traverse the active hub site.

Correct Answer: C
QUESTION 134
Which of the following are application optimization functions provided by Huawei SD-WAN Solution?

A. QoS
B. WAN optimization
C. Application-based intelligent traffic steering
D. Application Identification

Correct Answer: ABCD
QUESTION 135
In Huawei SD-WAN Solution, if traffic steering policies are configured for specific application and no links meet the application’s SLA, the application traffic is forwarded in ECMP mode by default.

A. True
B. False

Correct Answer: B
QUESTION 136
Traffic in the EF queue can occupy an unlimited amount of bandwidth of AF and BE queues.

A. True
B. False

Correct Answer: B
QUESTION 137
What is the default weight of the packet loss rate in the LQM calculation formula on iMaster NCE-WAN?

A. 0.35
B. 0.25
C. 0.3
D. 0.5

Correct Answer: C
QUESTION 138
In Huawei SD-WAN Solution, which of the following parameters can be used for LQM calculation?

A. Link Jitter
B. Link weight
C. Link packet loss rate
D. Link delay

Correct Answer: ACD
QUESTION 139
When congestion occurs on an interface, the minimum bandwidth can be guaranteed for applications in AF queues.

A. True
B. False

Correct Answer: A
QUESTION 140
Which of the following technologies are used to identify FTP applications?

A. Association Identification
B. Signature awareness
C. First- packet identification
D. Static Identification

Correct Answer: ABC