QUESTION 101
VRRP has two versions: VRRPv2 and VRRPv3. VRRPv2 applies only to IPv4 networks, and VRRPV3 applies only to IPv6 networks.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 102
Which of the following is used as the destination port for single-hop BFD?

A. UDP port 3784
B. TCP port 3784
C. UDP port 4784
D. TCP port 4784

Correct Answer: A
QUESTION 103
VRRP has two versions: VRRPv2 and VRRPv3. Which of the following statements are true about VRRPv3?

A. VRRPv3 is applicable to both IPv4 and IPv6.
B. The default device priority is 100.
C. By default, VRRP Advertisement packets are sent at an interval of 1 second.
D. VRRPv3 supports authentication.

Correct Answer: ABC
QUESTION 104
The administrator of an enterprise configures SNMPv3 on a device for communicating with the NMS. After the configuration is complete, the display trapbuffer command output shows that there are traps in the trap buffer of the information center, but the NMs does not receive any of them. Which of the following may cause this problem?

A. The SNMPv3 password used by the NMs is incorrect.
B. The size of packets sent by the NMs exceeds the threshold set on the device.
C. The community name configured on the NMs is inconsistent with that configured on the device.
D. The SNMP version configured on the device is different from the SNMP version of traps sent by the device.

Correct Answer: D
QUESTION 105
A large enterprise deploys WLAN in VRRP HSB mode to ensure network reliability. In this networking mode, which of the following data backup modes are supported?

A. Batch backup
B. Real-time backup
C. Scheduled synchronization
D. Cloud backup

Correct Answer: ABC
QUESTION 106
In inter-AC roaming scenarios, an AC can function as the mobility server of multiple mobility groups, but can be added only to one mobility group.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 107
On a WLAN, engineers can use the VLAN pool mechanism to assign access users to different VLANs, which helps reduce the number of broadcast domains and improve network performance.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 108
A wide area network (WAN) is a remote network that connects local area networks (LANs) or metropolitan area networks (MANs) in different areas for communication purposes. It is typically used to interconnect campus networks or data center networks.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 109
A router forwards traffic based on a FIB table. Which of the following values of the Flag field in a routing entry indicates that the next hop of the route is the gateway?

A. S
B. G
C. H
D. D

Correct Answer: B
QUESTION 110
From the logical architecture perspective, network devices are logically divided into multiple planes. Which of the following planes is not one of them?

A. Monitoring plane
B. Data plane
C. Forwarding plane
D. Control plane

Correct Answer: C
QUESTION 111
On an OSPF network, the I bit, M bit, and MS bit in the first DD packet sent by a router are all set to 1.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 112
On an OSPF network, if two routers with the same router ID run in different areas and one of the routers is an ASBR, LSA flapping occurs.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 113
An OSPF area ID identifies an OSPF area. Which of the following OSPF area IDs is equivalent to 0.0.1.0?

A. 255
B. 10
C. 1
D. 256

Correct Answer: D
QUESTION 114
Which of the following fields in DD packets is used for implicit acknowledgment to ensure the reliability and integrity of DD packet transmission on an OSPF network?

A. M
B. MS
C. I
D. DD sequence number

Correct Answer: D
QUESTION 115
An enterprise office network runs OSPF and is divided into multiple OSPF areas. Enterprise network engineers can configure route summarization on ASBRS to reduce the number of inter-area Type 3 LSAs, which in tur reduces the routing table size and improves device resource utilization.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 116
On an OSPF network, if a router receives an update of an LSA that exists in the local LSDB, the router updates the LSDB and floods the LSA.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 117
An enterprise uses OSPF for network communication. The display ospf Isdb command is run on a router, and the command output is as follows:

Which of the following statements are true about the device?

A. R1 is an ASBR.
B. The Age of the Type 3 LSA advertised by R1 is 286.
C. R1 runs in the OSPF backbone area.
D. The router ID of R1’s neighbor is 10.2.2.2.

Correct Answer: ABCD
QUESTION 118
On an IS-IS network, an AS can be divided into backbone and non-backbone areas. Which of the following types of IS-IS routers can exist in the backbone area?

A. Level-1-2
B. level-1-2and Level-2
C. Level-1
D. Level-2

Correct Answer: B
QUESTION 119
On an IS-Is network, two directly connected routers establish a neighbor relationship through the three-way handshake mechanism by default, regardless of whether the network type is P2P or broadcast.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 120
IS-IS has multiple types of packets, each with different functions. Which of the following types of packets is used to establish and maintain neighbor relationships?

A. PSNP
B. LSP
C. IIH
D. CSNP

Correct Answer: C