Free Practice Huawei H12-891_V1.0 Exam Questions 2026

Stay ahead with 100% Free HCIE-Datacom V1.0 H12-891_V1.0 Dumps Practice Questions

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Total 614 Questions | Updated On: May 24, 2026

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Question 1

The following statement about IPSec VPN is correct ?qo

A : Two routers establish an IPSec VPN in brutal mode, so that the two devices can interact with a minimum of 4 messages to establish a tunnel.

B : Brutal mode can support NAT traversal, while main mode does not support NAT traversal.

C : The two routers can establish OSPF neighbor relations and exchange intranet routes through the IPSecVPN tunnel

D : The two routers establish IPSecVPN in main mode, and from the 5th packet (included), the payload'sdata will be encrypted.

Answer: D

Question 2

Regarding the Stub region and the Totally Stub region of the OSPF protocol, the following statement is correct

(multiple choice)

A : After modifying the original Stub area to a Totally Stub area, the number of LSAs in the LSDB of eachrouter in the region will definitely be reduced

B : ASBR cannot be present in either the Stub zone or the Totally Stub zone

C : When you modify the original Stub area to a Totally Stub region, the number of LSAs propagatingwithin the region will definitely decrease

D : If there are two ABR in the Totally Stub zone, each ABR sends an LS ID of 0000 to the router in thezone LSA

Answer: B,D

Question 3

HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?

A : ICMP and UDP

B : IP ?TCP

C : UDP

D : NFS

E : FTP

Answer: C

Question 4

Which of the following attacks are DoS (Denial of servioe) attacks?( Multiple choice question)

A : Single packet attack

B : Source P address spoofing attack

C : Man-in-the-middle attack

D : Flood Attack

Answer: A,D

Question 5

Router HW1 exists in the carrier HW's network as an MPLSLSR router. The router receives a packet carrying a label, but the label entry does not exist in its LFIB. So how does the router handle that message?

A : Router HW1 strips off the label and looks for the FIB using the P destination address

B : Router HW1 uses LDP to create an LSP and creates a new path in LFIB for the label carried in the message

C : Router HW1 drops the message

D : Router HW1 will forward the message with the default label

Answer: C

Page: 1 / 123

Total 614 Questions | Updated On: May 24, 2026

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