Huawei H12-261 Actual Free Exam Questions & Community Discussion

Exam Code/Number: H12-261
Exam Name/Title: HCIE-Routing & Switching (Written)
Certification Provider: Huawei
Corresponding Certification: HCNP-R&S

Exam Questions: 498
Updated On: Oct 06, 2026

Question #25

Which parameter will not be received from the root bridge by a non-root bridge running 802.1D STP?

A. Forward delay

B. Root cost

C. Hello time

D. Hold time

E. Max Age

Discussion 0

Correct Answer: D Vote an answer

Question #26

About the prevention mechanism BGP, ? ring The following description is correct

A. The AS-PATH attribute of the autonomous system is used to prevent the loop.

B. The learned route will not announce to IBGP IBGP, AS neighbor is used to prevent internal routing loops.

C. Cluster List Cluster List The Cluster ID attribute is used for the anti-ring in the reflector cluster. The discovery of the router routing entry contains its own and will reject the routing.

D. You can use the attribute to prevent the AS-CONFED-SET link in the alliance.

Discussion 0

Correct Answer: A,B,D Vote an answer

Question #27

In a project, the researcher built the network topology for the working mechanism of OSPFv3, R1 R2, and R1 R2 protocols. The configuration of the following is as follows:
What are the LSA ? types?

R1 ospfv3 1 configuration
Router-id 1.1.1.1
Interface Gigabitethernet0/0/0 ipv6 enable
Ipv6 address auto link-local ospfv3 1 area 0
R2 ipv6 ospfv3 1 configuration
Router-id 2.2.2.2
Interface Gigabitethernet0/0/0 ipv6 enable
Ipv6 address auto link-local ospfv3 1 area 0. 0 0.0

A. network-lsa

B. Inter-area-prefix-lsa

C. router-lsaB. link-lsa

Discussion 0

Correct Answer: A,B,C Vote an answer

Question #28

In judging the old and new LSA, age, ?, the serial number parameter and the parameter are used. The following two parameters are correct.

A. The serial number and parameters can be judged. The old and new routers are better than the age LSA and sequence.

B. When the router receives two of the same serial numbers and the same LSA, , , the check is smaller and better

C. If the serial number reaches the bundle LSA 0x7FFF age 3600s lsa value, the current router is advertised as

D. When the router receives a LSA age 360s, the LSA says that this is not available.

Discussion 0

Correct Answer: B Vote an answer

Question #29

Two routers are connected through the serial port, but the interface cannot be pinged. See the port as follows:
(No map, one by one, you can find the reason without looking at it) PPP HDLC

A. The IP address is not on the same network segment.

B. Subnet mask does not match code

C. Chain bandwidth road is not enough

D. Chain layer protocol road inconsistency

Discussion 0

Correct Answer: D Vote an answer

Question #30

The network administrator defines a traffic policy as follows:

The router port to which the traffic policy is applied has been idle for about 10 seconds. In this case, if there is suddenly a large amount of cl burst traffic, what is the number of bytes in the green packets?

A. 48128 bytes

B. 32 Kbytes

C. 256 Kbytes

D. 80128 bytes

Discussion 0

Correct Answer: A Vote an answer

Question #31

IS-IS elects a DIS on a broadcast network. Which of the following statements regarding

A. DIS preemption is supported. After successful DIS preemption, LSPs do not need to be flooded.

B. On a broadcast network, the DIS sends Hello PDUs at a frequency that is three times the frequency of non-DIS routers.

C. ISIS elects the DIS by comparing preferences. If the preferences are the same, ISIS compares MAC addresses.

D. The DIS periodically sends CSNPs to ensure LSDB synchronization.

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question #32

Which of the following route types is used to advertise external routes in BGP EVPN?

A. Type 4

B. Type 2

C. Type 1

D. Type 3

E. Type 5

Discussion 0

Correct Answer: E Vote an answer

Question #33

Which of the following configurations regarding OSPFv3 route aggregation are true?

A. Option B

B. Option D
E Option E

C. Option C

D. Option A

Discussion 0

Correct Answer: C,D Vote an answer

Question #34

In the experimental network, the network is built according to the following topology. The SW1 SW2 STP is configured as the default and the function is disabled. The scene description is correct.

A. SW1 G0/0/1 Discarding entry status

B. sw2 G0/0/2 Discarding entry status

C. sw2 G0/0/1 Discarding entry status

D. No interface is blocked

E. Sw1 G0/0/2 Discarding entry status

Discussion 0

Correct Answer: D Vote an answer

Question #35

What kind of life can be used to prevent the user from using the HUB? ( ) to access multiple devices on the access port of the call?

A. [Huawei] interface GigabitEthernet 0/0/1 [Huawei-GigabitEthernet0/0/1]port link type trunk
[Huawei-GigabitEtherneto/0/1]port trunk allow pass vlan 10B. [Huaweiinterface GigabitEthernet 0/0/1
[Huawei-GigabitEtherneto/0/1]port link type access [Huawei GigabitEtherneto/0/jipsg enable

B. [Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEtherneto/O]port link-type access
[Huawei-GigabitEtherneto/O]port-security enable

C. [Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEtherneto/0]port link-type access [Huawei-GigabitEthernet0/O]port-isolate enable

Discussion 0

Correct Answer: C Vote an answer

Question #36

Which of the following statements regarding CHAP authentication in the PPP protocol are true?

A. The MD5 algorithm is used to calculate a hash based on the authentication sequence ID, a random number, and the key.

B. If no user name is configured for the authenticated party, the password does not need to be configured on the interface of the authenticated party.

C. The user name must be configured on the interface of the authenticated party.

D. Authentication requires three-way handshake. Only the user name is transmitted on the network, not the password.

Discussion 0

Correct Answer: D Vote an answer

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