Free Huawei H12-261_V3.0-ENU Practice Test & Real Exam Questions

Exam Code/Number: H12-261_V3.0-ENU
Exam Name/Title: HCIE-Routing & Switching (Written) V3.0
Certification Provider: Huawei
Corresponding Certification: HCIE-R&S

Exam Questions: 485
Updated On: Aug 14, 2026

Question #45

Regarding the description of the extended features of ISIS, which of the following is correct? (Multiple Choice)

A. ISIS can choose whether to perform authentication verification on the received SNP and LSP packets.

B. When the amount of information in the link state protocol data message PDU to be released by ISIS is too large, the ISIS router will generate multiple LSP fragments to carry more ISIS information.

C. After the router's LSP fragment extension function is enabled, you can use this function without restarting the ISIS process.

D. If there are devices from other manufacturers on the network that do not support the LSP fragmentation function, the fragment extension mode must be configured to Mode-1, otherwise the devices of other manufacturers cannot recognize the packet.

Discussion 0

Correct Answer: A,B,D Vote an answer

Question #46

When DLDP detects a unidirectional link on an interface, the default operations on Huawei devices include: DLDP switches to the interface to Disable state, generates a trap and sets the interface state to DLDP Down.

A. TRUE

B. FALSE

Discussion 0

Correct Answer: A Vote an answer

Question #47

Regarding the OSPF command description, which ones are incorrect? (Multiple choice)

A. There is no need to use router-id command to configure router-id in OSPFv3 configuration, the configuration method is the same as OSPFv2

B. The difference between the configuration of the stub area and the totally stub area is that the no-summary parameter is configured for the totally stub area

C. The difference between the configuration of OSPFv2 and OSPFv3 and the C command is that OSPFv2 can use the network command, while OSPFv3 is directly enabled on the interface

D. The stub router command is used to configure this router as a stub router. The stub router can form a neighbor relationship with non-stub routers.

Discussion 0

Correct Answer: A,D Vote an answer

Question #48

Assume that the port shaping rate is 100Mbps. The input bandwidth and PIR configured by IP of each service on the interface are as follows.

Then, after the first round of scheduling, what is the bandwidth allocated by the EF queue?

A. 15M

B. 30M

C. 90M

D. 25M

Discussion 0

Correct Answer: A Vote an answer

Question #49

Which of the following attacks are DoS (Denial of Service) attacks? (Multiple Choice)

A. Flood attack

B. Source IP address spoofing attack

C. Single packet attack

D. Man-in-the-middle attack

Discussion 0

Correct Answer: A,B Vote an answer

Question #50

The LAND attack is performed by the attacker sending a source address and a destination address to the destination host are the destination host, the same SYN packet on source port and the destination port. When the receiver waits for the final ACK packet from the sender, the connection is always in a semi-connected state, resulting in waste of limited TCP resources at the receiving end.

A. False

B. True

Discussion 0

Correct Answer: A Vote an answer

Question #51

Regarding BGP MED, which of the following descriptions are correct? (Multiple questions)

A. By default, BGP routing rules can compare the MED of routes from different autonomous systems

B. In BGP routing rules, the priority of MED is lower than AS Path, Praferred-Value, Local-Preference and Origin

C. By default, if there is no MED value in the route attribute, it will be treated as 0. If the bestroute med-none-as-maximum command is configured, the MED will be processed as the maximum value of 4294967295

D. The default value of BGP route MED is 0

Discussion 0

Correct Answer: B,C,D Vote an answer

Question #52

As shown in the figure, SWA, SWB, and SWC all run RSTP. What are the port roles of GE0/0/2 on SWB and GE0/0/1 on SWC?

A. Alternative port, Backup port

B. Backup port, Root port

C. Root port, Designated port

D. Backup port, Alternative port

Discussion 0

Correct Answer: D Vote an answer

Question #53

For Layer 2 VPN technology, which of the following statements are correct? (Multiple Choice)

A. BGP EVPN supports tenant isolation, multi-homing and broadcast suppression

B. VPLS is a widely used technology on the live network. It can provide Layer 3 packet transparent transmission and achieve multi-point access.

C. BGP EVPN solves the problem of MAC address drift and multi-tenancy that VPLS cannot support.

D. The VPLS configuration is highly complex. The Layer 2 network transparently transmits BUM packets.

Discussion 0

Correct Answer: A,C,D Vote an answer

Question #54

As shown in the figure, the ISIS neighbor relationship between R1 and R2 has just been established.
which of the following statement is true about the database synchronization process between R1 and R2?

A. The packet sent from R1 to R2 is a PSNP packet.

B. The packet sent from R1 to R2 is a CSNP packet.

C. The packet sent from R1 to R2 is a Hello packet.

D. The packet sent from R1 to R2 is an LSP packet.

Discussion 0

Correct Answer: B Vote an answer

Question #55

What parameters can the DHCPv6 server assign to the DHCPv6 client? (Multiple choice)

A. IPv6 address prefix

B. DNS server address

C. Gateway address

D. SNTP server address

Discussion 0

Correct Answer: A,B,D Vote an answer

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