H12-821_V1.0 Exam Dumps - HCIP-Datacom-Core Technology V1.0

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Question # 17

Which of the following statements regarding IGMPv1 and IGMPv2 are true?

1GMPv2 supports only general query.

1GMPv2 defines the Leave message type.

IGMPv1 does not define the IGMP Leave message type.

IGMPv1 supports general query.

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Question # 18

RSTP provides different functions in different scenarios. Which of the following statements Is false?

After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period

The role of the designated port that is enabled with root protection cannot be changed

If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port and triggers STP calculation

When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does not forward packets. If the port does not receive optimal RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state

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Question # 19

In an IPv4 address space, Class D addresses are used for multicast. Among Class D addresses, which of the following is the permanent group address range reserved for routing protocols?

232.0.0.0 to 232.255.255.255

239.0.0.0 to 239.255.255.255

224.0.0.0 to 224.0.0.255

224.0.1.0 to 231.255.255.255

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Question # 20

BFD can quickly detect faults in channels at multiple network layers, ensuring high reliability. To which of the following layers does BFD belong?

Application layer

Data link layer

Physical layer

Network layer

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Question # 21

Which of the following statements about WLAN roaming are true?

APs for roaming do not need to have overlapping signal coverage.

APs for roaming must be in the same extended service set (ESS).

APs for roaming must have overlapping signal coverage.

APs for roaming must be in the same basic service set (BSS).

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Question # 22

Which of the following statements about the forwarding plane of a switch is false?

Provides high-speed and non-blocking data channels.

Can encapsulate and decapsulate packets.

Can collect packet statistics.

Consists of main control boards and interface boards.

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Question # 23

On the network shown in the following figure, the management VLAN is VLAN 10, and the AP is configured to obtain an IP address on the network segment 10.1.1.0/24 through DHCP. The AP, AC, and AR function as the DHCP client, DHCP relay agent, and DHCP server, respectively. Which of the following configurations for the DHCP relay agent and DHCP server are correct?