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Huawei H12-891_V1.0 Exam Syllabus Topics:

Huawei HCIE-Datacom V1.0 Sample Questions:

1. Which of the following fields is added to BGP4+ Update packets to advertise IPv6 routes?

A) A new path attribute: MP_UNREACH_NLRI
B) A new path attribute: IPv6_REACH_NLRI
C) A new path attribute: MP_REACH_NLRI
D) A new NLRI type: IPv6_NLRI, which carries the IPv6 NLRI prefix length and IPv6 NLRI prefix.

2. Which of the following statements about IPSG is incorrect?

A) IPSG is a source IP address filtering technology based on Layer 3 interfaces.
B) IPSG can defend against IP address spoofing attacks.
C) IPSG can be used to prevent hosts from changing IP addresses.
D) IPSG can be used to check the validity of IP packets. If IP packets are invalid, the device reports an alarm to an NMS.

3. In 6PE networking, the shared explicit null label function can be enabled on routers to reduce the number of required MPLS labels. With this function, a router assigns a label with the value (enter only digits) to all 6PE routes.
0In 6PE (IPv6 over MPLS for Provider Edge), the shared explicit null label value is 0. When this function is enabled, the PE router assigns label 0 (IPv4 Explicit Null) to all IPv6 routes, reducing the label space consumption. This is known as label 0 reuse for IPv6 forwarding over MPLS.Exact Extract - HCIE-Datacom IPv6/MPLS Integration Section:"To optimize label usage in 6PE deployments, shared explicit null label (label 0) can be assigned to all 6PE routes."

4. 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 tunnel is a GRE tunnel.
B) The destination IP address of the tunnel is 10.0.3.3.
C) Keepalive detection is enabled on the tunnel.
D) Key authentication is disabled for the tunnel.

5. Collecting information before a cutover helps you determine whether services are normal before and after the cutover.

A) TRUE
B) FALSE

Solutions: