Which statement about IGMP Proxy is correct? (Multiple choice)

• A.IGMP Proxy can detect link status in conjunction with NOA to achieve rapid switching between active and standby links
• B.The IGMP Proxy device cannot replace the IGMP querier to send query messages to downstream member hosts to maintain group membership
• C.IGMP Proxy is usually deployed on the device between the member hosts that access the device
• D.The downstream connection of the IGMP Proxy device generates multicast forwarding entries based on the information of member hosts joining/leaving the multicast group

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Which of the following statements about VLAN hot backup is wrong? (Multiple choice)

• A.In VRRP hot backup, the active and standby ACs can be on different Layer 2 networks and communicate with each other through Layer 3 for backup
• B.When configuring VRRP hot backup, you can configure the priority of VRRP to determine the primary and backup colors of the AC device
• C.In dual-link hot backup, the priority of the active and standby ACs can be configured to be the same to achieve backup in load sharing mode
• D.When configuring VRRP hot standby, the active and standby ACs must be on the same Layer 2 network

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Which of the following statement about OSPF neighbor information is incorrect?

• A.This router is Master
• B.The router id of this router is 1.1.1.1
• C.The address of DR is 10.1.1.1
• D.The router id of the neighbor is 2.2.2.2

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A VRRP virtual router can only have a virtual IP address.

• A.True
• B.False

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All single switches in the stacking system are called member switches, and can be divided into different roles according to their functions. Please match the roles of the following member switches with their functions.

Correct Answer:

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