H3CSE-RS-SW (GB0-372-ENU) Free Practice Test

Question 1

Two switches SWA and SWB are connected together through four Ethernet cables, and the corresponding interfaces on switch SVVA have the following configuration:
[SWA-Ethernet1/0/1] display this duplex full
Speed 10
[SWA-Ethernet1/0/2] display this duplex full
Speed 10
[SWA-Ethernet1/0/3] display this duplex half
Speed 100
[SWA-Ethernet1/0/4] display this duplex half
Speed 100
What can we learn from the above information?

A. Four Ethernet ports are added to the same aggregation group through static aggregation. The selected ports are Ethernet 1/0/3 and Ethernet 1/0/4.

B. Four Ethernet ports are added to the same aggregation group through static aggregation, and the Selected ports are all four ports.

C. Four Ethernet ports are added to the same aggregation group through static aggregation. The selected ports are Ethernet 1/0/1 and Ethernet 1/0/3.

D. Four Ethernet ports are added to the same aggregation group through static aggregation. The selected ports are Ethernet 1/0/1 and Ethernet 1/0/2.

Correct Answer: D

Question 2

In the network shown in the figure, PIM SM protocol runs between RT1, RT2 and RT3, and the RP is 1.1.1.1. RT3 is connected to a receiver, and IGMP is enabled on the corresponding interface.

View the unicast routing table on RT3

Then, when the receiver sends a group join request, which of the following routers have (*, G) entries?
(Multiple choice)

A. RT3

B. RT1

C. RT2

Correct Answer: A,B

Question 3

Regarding BPDU protection, which of the following is correct? (Multiple choice)

A. An edge port without BPDU protection configured will become a non-edge port after receiving a BPDU.

B. BPDU protection is configured in the protected port view

C. After configuring BPDU protection, the edge end will be closed when receiving BPDU

D. B PDU protection is configured in system view

Correct Answer: A,C,D

Question 4

As shown in the figure, there is no connection between SWA and SWB at the beginning. SWA and SWB enable RSTP. When the topology is stable, connect the ports E1/0/1 of SWA and SWB. Assuming that SWA will become the new root bridge, which of the following is correct? (Multiple choice)

A. After receiving the Proposal message sent by SWA, SWB will start the synchronization process to block the old root port, designated port, and edge port.

B. SWB will immediately reply with an Agreement message after receiving the Proposal message sent by SWA

C. SWB does not need to generate BPDU by itself. The content of the Agreement message it responds to is copied from the Proposal message sent by SWA.

D. Port E1/0/1 of SWA and SWB will send a Proposal message, requesting to enter the forwarding state

Correct Answer: C,D

Question 5

There are multiple IGMPV2 group member hosts (Client1/Client2/Client3) and multiple IGMPv2 routers (Router1/Router2) in the shared network segment, as shown in the following figure:

Then, which of the following statement is correct? (Multiple choice)

A. Router1 and Router2 periodically send general group queries to the shared network segment

B. After the host receives the query message, only Client1 sends a Report message

C. After the host receives the general group query message, Client1, Client2, and Client3 may send the same

D. After the host receives the general group query message, Client1 sends a Report message to join group A, which will not suppress Client2's Report message to join group B.

E. Only Router2 periodically sends general group queries to the shared network segment

F. Only Router1 periodically sends general group queries to the shared network segment

Correct Answer: C,D,E

Question 6

Which of the following are organizations or projects related to SDN? (Multiple choice)

A. Open Networking Fundation

B. Ethane Project

C. SDN Industry Alliance

D. OpenDaylight

Correct Answer: A,C,D

Question 7

Which of the following technologies belongs to link backup technology in redundant backup technology? (Multiple choice)

A. RRPP

B. STP

C. Smart-Link

D. Link aggregation

E. Dynamic routing

Correct Answer: A,B,C,D

Question 8

Which of the following statements about the VXLAN data plane are correct? (Multiple choice)

A. When VXLAN packets are forwarded between Underlay devices, the source and destination MAC addresses in the outer IP header do not change.

B. When VXLAN packets are forwarded between underlay devices, the source and destination MAC addresses in the outer IP header will change.

C. For the underlay device on the forwarding path, it is best to increase the MTU by 50

D. For the Underlay devices on the forwarding path, there is no need to adjust the MTU

Correct Answer: B,C

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H3CSE-RS-SW (GB0-372-ENU) Free Practice Test