H12-261_V3.0 Exam Questions and Answers

QUESTION: 71

When DLDP detects the existence of a unidirectional link in the fiber, the default actions of Huawei equipment include:The DLDP state machine transitions to the Disable state; outputs Trap information; automatically sets the interface to the blocked state. ( confirmed)

True
false

Answer(s): A

Explanation:

If a unidirectional link is found, the DLDP protocol will automatically shut down or notify the user to manually shut down the relevant interface according to user configuration to prevent network problems from occurring.

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QUESTION: 72

Which of the following are used in Ethernet? (Multiple Choice)

MAC address in non-canonical format
in multiple accessCSMA/CD
Canonical format of the MAC address
802.5 encapsulated frame
802.3 encapsulated frames

Answer(s): B,C,E

Explanation:

IEEEE 802.3 defines medium access control (MA) for the physical layer and data link layer of wired Ethernet.C) IEEE 802.5 Usually order card ring network

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QUESTION: 73

In RSTP, what kind of port can provide a backup path to the root of the spanning tree? What state is the port in?

Root port and Listening state
Alternate port andForwarding state
Alternate port and Learning state
Designated ports and isting states
Alternate port and Discarding state

Answer(s): E

Explanation:

Section: (none) Explanation existThere are only three port states in RSTP, Discarding, Learning and Forwarding. RSTP defines 3 port roles (STP has 5 roles) according to the role of the port in the active topology:
Disabled Port, Root Port Port), designated port (Designated Port), an alternate port specified for the fast feature that supports RSTP
(Alternate Port) and the backup port (Backup Port)

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QUESTION: 74

ISIS protocol in broadcast network and P2P network, when router receives LSP, it needs to use PSNP confirms to ensure the synchronization of LSDB.

True
false

Answer(s): B

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QUESTION: 75

Which of the following statements about the tail of ISIS protocol LSP packets is correct?

LSP fast diffusion feature, first diffuse LSPs less than the specified number to speed up the synchronization process of LSDB
by configurationAn intelligent timer generated by LSP, which can automatically adjust the delay time according to the changing frequency of routing information
When the link state information increases, the packet length of the LSP can be increased, so that each LSP can carry more information.
Decreasing the minimum time interval for sending LSPs by port can speed up the diffusion of LSPs.

Answer(s): A,B,C,D

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Huawei H12-261_V3.0 Exam (page: 15) Huawei HCIE-Routing & Switching (Written) V3.0 Exam Updated on: 15-Feb-2026

QUESTION: 71

Explanation:

QUESTION: 72

Explanation:

QUESTION: 73

Explanation:

QUESTION: 74

QUESTION: 75

Huawei H12-261_V3.0 Exam (page: 15)
Huawei HCIE-Routing & Switching (Written) V3.0 Exam
Updated on: 15-Feb-2026