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The device operating environment is crucial for stable device operating, including the equipment room, power supply, and heat dissipation. Maintenance personnel must be on site to maintain the device operating environment.

ATRUE

BFALSE

Question 2

On an MPLS network, when a transit device receives an MPLS packet and is ready to swap labels, it finds that the label value after swapping is 0. In this case, which of the following operations will the device perform?

Options:

ARemoves the label from the MPLS packet and forwards the packet to the next hop.

BPushes label 0 into an outer label of the MPLS packet and forwards the MPLS packet with double labels to the next hop.

CForwards the packet to the next hop without processing the label.

DSwaps label 0 with the original label in the MPLS packet and forwards the packet to the next hop.

Question 3

A network engineer checks LLDP neighbor information on R1. The output is shown below.

Which of the following statements are true?

LLDP Output:

yaml

CopyEdit

display lldp neighbor interface GE0/0/0

------------------------------------------------

GE0/0/0 has 1 neighbor(s):

Neighbor index: 1

Chassis type: MAC Address

Chassis ID: faed-ad04-0010

Port ID subtype: Interface Name

Port ID: GE0/0/0

System name: R2

System description: Huawei YunShan OS

HUAWEI AR8140-12G10XG

System capabilities supported: bridge router

System capabilities enabled: bridge router

Management address type: IPv4

Management address: 192.168.1.1

Expired time: 107s

AThe sysname of the peer device is R2.

BThe interface number of the peer device is GE0/0/0.

CThe VLAN ID of the peer device is 1.

DThe management IP address of the peer device is 192.168.1.1.

Question 4

When an IP packet passes through an MPLS network, an MPLS device processes the TTL value in the packet.

If the pipe mode is used in the topology shown in the figure, which of the following is the TTL value in the IP packet?

Options:

A255 254 252

B254 253 252

C255 255 254

D254 254 253

Question 5

On the network shown in the figure, VRRP is configured on Rl and R2, and the virtual IP address is 10.0.12.254. After the configuration is complete, the network engineer checks the VRRP status on R1 and R2, and finds that both devices are in the Master state. Which of the following is not a possible cause of this problem?

AR1 and R2 have different priorities in the VRRP group.

BGE0/0/1 and GEO/0/2 of SW1 belong to different VLANs.

CThe VRIDs configured on R1 and R2 are different.

DThe virtual IP addresses configured on R1 and R2 are different.

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