H3C Constructing H3C High-Performance Campus Networks - GB0-371-ENU FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

After executing the displayinterface Ethernet 1/0/1 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/1
Ethernetl/0/1 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output

A. Data frames with VLAN20 tags can be forwarded from port Ethernet1/0/1 B. Data frames with VLAN10 tags will not be discarded when entering port Ethernet1/0/1 C. Port Ethernet1/0/1 is a Trunk port, allowing all VLAN data to pass through D. Data frames with VLAN1 tags will be stripped of tags when they leave port Ethernet1/0/1

Discussion 0

Correct Answer: B,C Vote an answer

Question 2

Regarding the designation of the MSTP root bridge, the correct statement is

A. Use the rootsecondary command to specify the backup root bridge in an instance. When the root bridge fails or is shut down, the backup root bridge can replace the root bridge and become the root bridge of the specified spanning tree instance B. The rootprimary command can be used to specify the first preference in an instance. After the command is specified, the priority of the root bridge cannot be modified C. If not specified, the root bridge of all instances in the MST region is the root bridge of IST by default D. If multiple backup root bridges are set, when the root bridge fails, the backup root bridge with the smallest MAC address will become the root of the specified MST instance

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question 3

The figure shows the application of SmartLink and RRPP hybrid networking. In this networking environment, the RRPP protocol is enabled on the switch SWA, switch SWB, switch SWC and switch SWD to provide link redundancy backup. From the above information, you can know

A. Switch SWC, switch SWD, switch SWE use MSTP technology, switch SWE uplink switch SWC, switch SWD link will block one B. Switch SWC, switch SWD, switch SWE can use MSTP technology to avoid loops C. Switch SWC, switch SWD, switch SWE use SmartLink technology, switch SWE uplink switch SWC, switch SWD link will block one D. Switch SWC, switch SWD, switch SWE can use SmartLink technology to avoid loop

Discussion 0

Correct Answer: C,D Vote an answer

Question 4

In the networking model shown in the figure, if Accoing is received on RADIUsClient, the following statement may be correct.

A. This message is a start-accounting response message B. The message is a stop-accounting response message C. The message is sent by Host D. The message is sent by RADIUS Server

Discussion 0

Correct Answer: B,D Vote an answer

Question 5

In the switching network as shown in the figure, all three switches only have the default VLAN 1, the interconnection ports of the three switches are Trunk, and all VLANs are allowed to pass, and the three switches have the global and port GVRP function enabled. VLAN 10 is created on the switch SVVA, VLAN 20 is created on the switch SWC, check the status information of each Trunk port on the three switches, the correct one is displayed below (choose one or more)

A. [SWB]display interface Ethernet 1/0/2 Ethernet1/0/2 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q B. [SWB]display interface Ethernet 1/0/1 Ethernet1/0/1 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q C. [SWC]display interface Ethernet 1/0/1 Ethernet1/0/1 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q D. [SWA]display interface Ethernet 1/0/1 Ethernetl/0/1 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q

Discussion 0

Correct Answer: B Vote an answer

Question 6

Regarding the role and status of the STP port, the following statements are correct:

A. Only the Alternate port will be in the Blocking state B. The designated port will enter the Forwarding state after two ForwardDelay durations C. The port with the role of Alternate will not go through the Listening state and the Learning state D. Only the designated port will eventually be in the Forwardig state

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 7

The SNMP protocol adopts the C/S structure and gives UDP to realize the message transmission. In order to ensure the normal interaction of protocol messages between the network management workstation and SNMP, they all need to monitor the specific UDP port number. The following statement about them is correct.

A. The gateway workstation monitors UDP port 162, and the SNMP agent monitors UDP port 161 B. Both the network management workstation and the SNMP agent monitor UDP port 161 C. Both the gateway workstation and SNMP agent monitor UDP port 162 D. The gateway workstation monitors UDP port 161, and the SNMP agent monitors UDP port 162

Discussion 0

Correct Answer: A Vote an answer

Question 8

The following statements about PIMSSM are correct

A. PIMSSM can be simply viewed as similar to PIMSM. After the host sends a join message, the device sends a (*, G) join message to the multicast source B. Compared with PIMSM, PIMSSM does not require RP, which improves message forwarding efficiency C. To be compatible with the earlier version of IGMP, the receiver in PIMSSM also uses IGMP V2 to send join messages D. The multicast packet reaches the receiver along the SPT between the multicast source and the receiver

Discussion 0

Correct Answer: B,D Vote an answer