H3C GB0-372-ENU

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H3C GB0-372-ENU Exam Syllabus Topics:

H3CSE-RS-SW Sample Questions:

Question #1
Which of the following VLAN division methods can only be configured on the Hybrid port? (Multiple choice)

A. VLAN based on IP subnet
B. Port-based VLAN
C. Protocol-based VLAN

Question #2
In the PIM-DM network shown in the figure, some unicast routing tables of routers RT1 and RT2 are as follows:
<RT1>display ip routing-table Routing Tables: Public
Destination/MaskProtoPreCost NextHop
Interface
1.1.1.0/24xxxxP1-1 C1-110.1.1.1Port1
111.1.0.0/16xxxxP1-2C1-210.1.1.1Port1
<RT2> display ip routing-table
Routing Tables: Public
Destination/MaskProtoPreCost NextHop Interface
1.1.1.0/24XXXX P2-1 C2-111.1.1.1Port2
1.1.1.1/32XXXX P2-2 C2-211.1.1.1Port2
Then, when routers RT1 and RT2 perform Assert, the winner should be? (Multiple choice)

A. If P1-1= P2-2, C1-1=C2-2, then RT2 wins.
B. If P1-1= P2-1, C1-1=C2-1, then RT1 wins.
C. If P1-1= P2-2, C1-1>C2-2, then RT2 wins.
D. If P1-1<P2-1, C1-1<C2-1, then RT1 wins.
E. If P1-1<P2-2, C1-1<C2-2, then RT2 wins.
F. If P1-1= P2-1, C1-1>C2-1, then RT1 wins.

Question #3
SSH protocol is a secure remote login protocol and is widely used. Which of the following about SSH is correct? (Multiple choice)

A. SSH uses TCP port 22 to transmit data and port 23 to establish a connection
B. SSH and Secure Shell can use DES authentication to ensure data security
C. SSH can also provide a secure transmission channel for FTP
D. SSH uses additional encryption technology to ensure login security

Question #4
Which of the following statements about STP bridge ID is correct?

A. The MAC addresses of SWA and SWB are 00-E0-FC-00-00-11 and 00-E0-FC-11-00-11 respectively, and their priorities are 32768 and 4096, when SWA and SWB are connected in a ring network and the spanning tree protocol is enabled, SWA will become the root bridge.
B. The bridge with the smallest bridge ID in the network will eventually become the root bridge after STP calculation.
C. The bridge ID consists of the bridge MAC address and the priority field. When comparing bridge IDs, the MAC address is compared first, and the one with the smaller MAC address value is preferred.
D. The bridge priority field is 2 bytes long, so the bridge priority value range is 0-65535

Question #5
Regarding the working principle of IGMP-Snooping, which of the following is correct? (Multiple choice)

A. Layer 2 devices rely on IGMP-sliooping to snoop IGMP messages and maintain multicast address forwarding entries at Layer 2
B. By listening to IGMPReport messages, IGMP-Snooping adds ports to known multicast groups or creates new multicast forwarding entries
C. Determine the router end by listening to IGMPQuery messages and IGMP-Snooping

Solutions: