Huawei H12-821_V1.0 Practice Questions| TestInsights

Question 1

Which of the following statements regarding an IP prefix are true?

AAn IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.

BAn IP prefix filter cannot be used to filter data packets.

CAn IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.

DAn IP prefix filter can be used to filter data packets.

Correct : D

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AAn IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.

BAn IP prefix filter cannot be used to filter data packets.

CAn IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.

DAn IP prefix filter can be used to filter data packets.

Question 2

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

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

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

CIf 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

DWhen 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

Correct : C

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

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

CIf 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

Question 3

Which of the following statements is false, based on the following IGMP information on an interface of RTA?

AThe interval for sending group-specific Query messages is 60s.

BThe maximum time for response to Query messages is 10s.

CThe IP address of the interface is 192.168.1.1.

DThe IGMP version is IGMPV2.

Correct : B

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AThe interval for sending group-specific Query messages is 60s.

BThe maximum time for response to Query messages is 10s.

CThe IP address of the interface is 192.168.1.1.

DThe IGMP version is IGMPV2.

Question 4

Which of the following PIM protocol packets have unicast destination addresses.

ARegister Stop

BBootstrap

CGraft

DAssert

Correct : C

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ARegister Stop

BBootstrap

CGraft

DAssert

Question 5

There are two BFD operating modes. In_______mode, the local end sends BFD Control packets at specified intervals, and the remote end checks whether the local end periodically sends BFD Control packets. (Use lowercase letters.)

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Correct : A

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Aprimary

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