Huawei HCIE-Datacom V1.0 - H12-891_V1.0 Free Exam Questions [2026]

QUESTION NO: 1
Which of the following is the default port used by iMaster NCE-Campus northbound open APIs?

A. 18006

B. 18002

C. 18000

D. 18008

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QUESTION NO: 2
Refer to the following command output on the router R1. Which of the following statements is incorrect?
<R1> display interface Tunnel
Tunnel0/0/0 current state : UP
Line protocol current state : UP
Last line protocol up time : 15:21:23 UTC-08:00
Description: ! 0.0.3.3
Route Port, The Maximum Transmit Unit is 1500
Internet Address is 20.1.1.1/24
Encapsulation is TUNNEL, loopback not set
Tunnel source 10.0.1.1 (LoopBack0), destination 10.0.3.3
Tunnel protocol/transport GRE/IP, key disabled
keepalive disabled
Checksumming of packets disabled
Current system time: 15:21:37-08:00
300 seconds input rate 0 bits/sec, 0 packets/sec
300 seconds output rate 0 bits/sec, 0 packets/sec
13 seconds input rate 0 bits/sec, 0 packets/sec
13 seconds output rate 448 bits/sec, 0 packets/sec
9 packets output, 824 bytes
0 output error
Input bandwidth utilization : -
Output bandwidth utilization : -

A. The destination IP address of the tunnel is 10.0.3.3.

B. Key authentication is disabled for the tunnel.

C. Keepalive detection is enabled on the tunnel.

D. The tunnel is a GRE tunnel.

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Correct Answer: C Vote an answer

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QUESTION NO: 3
Which of the following statements about 802.1X authentication are correct?

A. In EAP relay mode, EAP packets are directly encapsulated by the network access device into RADIUS packets (that is, EAP over RADIUS, or EAPoR). The network access device and AAA server use EAPoR to perform authentication, authorization, and accounting.

B. 802.1X authentication uses EAPoL to exchange authentication information between the client, device, and authentication server.

C. EAPoL implements EAP encapsulation on an IEEE 802.3 network, whereas EAPoW implements EAP encapsulation on an IEEE 802.11 network.

D. In EAP termination mode, EAP packets are terminated and re-encapsulated into RADIUS packets on the network access device. The network access device and AAA server use the standard RADIUS protocol to implement authentication, authorization, and accounting.

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QUESTION NO: 4
MACsec can provide secure services during MAC-layer data transmitting and receiving. Which of the following services is not provided by MACsec?

A. User data encryption

B. Integrity check

C. Controllability check

D. Data source authenticity verification

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Correct Answer: C Vote an answer

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QUESTION NO: 5
In the firewall hot standby scenario, when VGMP works in load balancing mode, which of the following functions must be enabled on the firewalls to prevent the return traffic from being discarded because it does not match any session entry in the case of inconsistent forward and return paths?

A. Manual batch backup

B. Automatic backup

C. Quick session backup

D. BFD

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QUESTION NO: 6
In SRv6, each time a packet passes through an SRv6 endpoint node, the Segments Left field value decrements by 1, and the IPv6 DA changes.

A. TRUE

B. FALSE

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QUESTION NO: 7
HTTP/2 is a UDP-based low-delay Internet transport layer protocol.

A. TRUE

B. FALSE

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Correct Answer: B Vote an answer

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QUESTION NO: 8
When MPLS/BGP IP VPN is deployed, which of the following statements is incorrect about BGP route exchange between PEs and CEs?

A. In a scenario where PEs and CEs use BGP to exchange routing information, if two VPN sites have the same private AS number, the AS number replacement function can be used to replace the AS number in a received private network route with any specified AS number. This prevents routes from being discarded because of repeated AS numbers.

B. When PEs and CEs use BGP to exchange routing information, you do not need to import private network routes to BGP on PEs.

C. In a Hub&Spoke scenario, when Hub-CE and Hub-PE run an IGP for communication, EBGP cannot be configured on Spoke-PE or Spoke-CE.

D. In a CE multi-homing scenario, the BGP AS number replacement function may cause routing loops. BGP SoO can be used to prevent routing loops at a VPN site.

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QUESTION NO: 9
MPLS supports both static and dynamic LSP establishment. Which of the following protocols cannot dynamically establish LSPs in MPLS TE scenarios? (Select all that apply)

A. IS-IS

B. OSPF

C. BGP

D. RSVP-TE

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Correct Answer: A,B,C Vote an answer

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QUESTION NO: 10
In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following BGP EVPN routes is used to advertise MAC addresses, ARP entries, and IRB routes?

A. Type 4

B. Type 1

C. Type 2

D. Type 3

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Correct Answer: C Vote an answer

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QUESTION NO: 11
On a CloudCampus virtualized campus network, which of the following modes can be used by a fabric to connect to external networks?

A. Layer 3 shared egress

B. Layer 2 shared egress

C. Layer 3 exclusive egress

D. Layer 2 exclusive egress

Discussion 0

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

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QUESTION NO: 12
iMaster NCE-Campus provides the terminal identification function to display the terminal type, operating system, and manufacturer information.

A. TRUE

B. FALSE

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QUESTION NO: 13
An engineer often remotely logs in to the device to check the device status. The engineer can use the Python Paramiko and telnetlib libraries to implement automatic remote login through Python scripts. The remote login implemented using telnetlib is more secure.

A. TRUE

B. FALSE

Discussion 0

Correct Answer: B Vote an answer

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QUESTION NO: 14
A client sends an HTTP request to a server, and the server sends back an HTTP response. Which of the following parameters is not carried in the HTTP response?

A. URI

B. Protocol version

C. Status code

D. Reason phrase

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QUESTION NO: 15
In the Huawei SD-WAN Solution, which of the following routing protocols is used to advertise VPN routes between CPEs?

A. IS-IS

B. OSPF

C. BGP

D. RIP

Discussion 0

Correct Answer: C Vote an answer

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