QUESTION 21
Which of the following parameters are used by VRRP to elect the master router?

A. TCP port
B. VRRP priority
C. Interface MAC address
D. Interface IP address

Correct Answer: BD
QUESTION 22
An enterprise deploys VRRP at the egress and association between VRRP and uplinks. However, the network administrator finds that the network is interrupted when the uplink of the VRRP master device is faulty. According to the following network topology and key configurations, which configuration causes the problem?

A. Port security is configured on G0/0/2 of SW1.
B. Association with the uplink interface on R1 is configured.
C. Port security is configured on G0/0/3 of SW1.
D. Port security is configured on G0/0/1 of SW1.

Correct Answer: A
QUESTION 23
Over which of the following headers is a BFD detection packet carried?

A. UDP header
B. IP header
C. MAC header
D. TCP header

Correct Answer: A
QUESTION 24
IP FPM can accurately measure the quality of specific services.

A. True
B. False

Correct Answer: A

QUESTION 25
Which of the following network parameters can be detected by NOA?

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

Correct Answer: ABD
QUESTION 26
Interface backup can be used together with IP floating routes. NQA or BFD can be used to switch between the active or standby interface and active or standby floating route.

A. True
B. False

Correct Answer: A
QUESTION 27
NQA technology constructs service packets for simulating service packet forwarding on a network to obtain accurate performance indicators.

A. True
B. False

Correct Answer: B
QUESTION 28
Which of the following statements about the WLAN feature of Huawei AR series routers is false?

A. No license is required when the AR650 series functions as an AC.
B. AR routers with a “W” in their name support the WLAN feature.
C. When the AR6100 functions as an AC and has the AC license loaded, it can connect to a maximum of four APs.
D. All AR routers support Fat APs without a license.

Correct Answer: A
QUESTION 29

Telemetry uses the subscription and release mechanism, by which devices periodically report status information, reducing bandwidth and hardware resource consumption.

A. True
B. False

Correct Answer: A
QUESTION 30
A company leases a bare optical fiber from a carrier to connect two data centers in different places. However, network management personnel find that the network between the data centers is unstable and is frequently interrupted. The following figure shows the interface status and optical module status. What is the root cause of this problem?

A. The transmit optical power is insufficient.
B. There is heavy broadcast and multicast traffic.
C. Too many CRC error packets are generated.
D. The receive optical power is insufficient.

Correct Answer: D
QUESTION 31
Every time an engineer uses the email-based deployment function to configure a device, the deployment fails. What are the possible causes?

A. WLAN is enabled on the device.
B. The URL for email-based deployment is incorrect.
C. Device information has been manually configured.
D. ZTP is not enabled on the device.

Correct Answer: BCD
QUESTION 32
Three types of information can be generated when a device is running. Which of the following are the three types of information?

A. Debugging messages
B. Traps
C. Logs
D. Bugs

Correct Answer: ABC
QUESTION 33
After a power module is replaced, how do we check whether the new power module is working properly?

A. Check whether the power indicator is steady on.
B. Run the display device command to check whether the power module is registered.
C. Check whether the power indicator is blinking.
D. Run the display power command to check whether the power module is installed properly.

Correct Answer: ABD

QUESTION 34
Which of the following protocols can be used by the network management server to monitor the device status?

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

Correct Answer: BCD
QUESTION 35
SD-WAN mainly uses VPN technology for enterprise interconnection.

A. True
B. False

Correct Answer: A
QUESTION 36
Huawei SD-WAN Solution, which of the following tunneling technologies is used to establish data channels?

A. VXLAN
B. MPLS
C. IPsec
D. GRE over IPsec

Correct Answer: D
QUESTION 37
Which of the following networks is used by the management channel of Huawei SD-WAN Solution to connect to IMaster NCE-WAN?

A. Underlay WAN network
B. LAN
C. Overlay network
D. Campus network

Correct Answer: A

QUESTION 38
Which of the following deployment modes are supported by Huawei SD-WAN Solution?

A. CLI-based deployment
B. Email-based deployment
C. DHCP-based deployment
D. USB-based deployment

Correct Answer: ABCD
QUESTION 39
Huawei SD-WAN Solution requires USG firewalls to implement security features. AR routers cannot be used to implement security features.

A. True
B. False

Correct Answer: B
QUESTION 40
Which of the following protocols is used to implement the SD-WAN control signaling protocol?

A. BGP
B. OSPF
C. RIP
D. IS-IS

Correct Answer: A