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H3C GB0-371-ENU Exam Syllabus Topics:

H3C Constructing H3C High-Performance Campus Networks Sample Questions:

Question 1

The following statements about BSR and RP in PIMSM are correct (choose one or more)

A. -There can only be one BSR in a PIMSM domain
B. There can only be one RP in a PIMSM domain
C. -There can only be one C-BSR in a PIMSM domain
D. -There can only be one C-RP in a PIMSM domain

Question 2

The topology is shown in the figure, and the STP calculation is performed. The correct result is:

A. If the bridge priority of SWD is set to 0, port E0/2 of SWD will only receive configuration BPDUs and not send configuration BPDUs
B. If the bridge priority of SWD is set to 0, SWD will become the root bridge, and ports E0/1 and E0/2 are designated ports
C. Since the root bridge ID, root path cost, designated bridge ID, and designated port are the same, the root port of SWD cannot be determined
D. SWD needs to determine the root port by comparing the ID of the port that receives the configuration BPDU

Question 3

In the switching network as shown in the figure, VLAN10 is set as Isolate-user-vlan on the switch SWA, VLAN2 and VLAN3 are set as the Secondary VLAN of VLAN 10; VLAN2? VLAN20 is created on the switch SWB, and VLAN20 is set as Isolate-user-vlan , VLAN4 is VLAN20 Secondary VLA after setting the IP address of each device as shown in the figure, if the local ARP proxy function is enabled on both SWA and SWB, and both SWA and SWB are allowed to send ICMP packets, then on PCA Run the tracert 10.1.1.2 command, the PCA shows that the destination IP address reached by the first hop is

Question 4

The following statements about the registration process of PIM SM are correct (choose one or more)

A. Unlike the PUSH method of PIM DM, in PIM SM, the multicast source only starts to send multicast traffic when there are downstream receivers
B. After the RP receives the source registration message for the first time, it will send a (*, G) join message to the multicast source and establish (*, G) entries along the way
C. When a multicast source initially sends traffic, the connected DR will encapsulate several empty Register messages to register with the RP
D. After the RP normally receives the multicast forwarded traffic from the multicast source, it forwards the multicast to its downstream interface until the multicast receiver, forming an RPT from the RP to the multicast receiver along the way.

Question 5

The figure shows the networking application of RRPP. Customer LAN switches SWA, SWB, SWC, and SWD form RRPP ring main ring 1, switches SWB, SWC and SWE form sub-ring 2, and switches SWB, sWC and sWF form sub-ring 3. If Switch SWE is the master node of sub-ring 2, SWF is the master node of sub-ring 3, and switch SWB is the edge node of sub-ring 2 and sub-ring 3. In order to eliminate the defect of broadcast storm under specific conditions of RRPP dual-homing networking, the above information Can know

A. If the link between the switch SWA and the switch SWD is Down, the edge port on the switch SWB will be blocked
B. If the link between the switch SWA and the switch SWB is Down, and the link between the switch SWB and SWC is Down, the edge port on the switch SWB will be blocked
C. If the link between switch SWA and switch SWB is Down, and the link between switch SWA and switch SWD is Down, the edge port on switch SWB will be blocked
D. If the link between the switch SWB and the switch SWC is Down, the edge port on the switch SWB will be blocked

Solutions: