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Huawei H12-891_V1.0 Exam Syllabus Topics:

Huawei HCIE-Datacom V1.0 Sample Questions:

1. Which of the following is not the function of OSPFv3 Link-LSAs?

A) Advertises the interface ID of the local router to other routers attached to the link.
B) Advertises the link-local address of the local interface to other routers attached to the link.
C) Advertises the Options field in the Network-LSA originated on the local link to other routers attached to the link.
D) Advertises a list of IPv6 prefixes of the local interface to other routers attached to the link.

2. On a campus network, which of the following problems may occur when you manually create a static VXLAN tunnel?

A) Remote MAC addresses can be learned by the VTEP only through data flooding.
B) Although the static VXLAN tunnel mode supports the distributed gateway scenario, the configuration involves a heavy workload and is complex to adjust.
C) If N devices need to establish static VXLAN tunnels, a maximum of N(N -1)/2 tunnels need to be manually configured, which involves a heavy workload.
D) A static VXLAN tunnel also uses corresponding protocols on the control plane, which consumes device resources.

3. As shown in the figure, PE1 establishes an EVPN peer relationship with each of PE2 and PE3. When the network is initialized, CE1 sends an ARP request packet.
Which of the following statements are correct about how a PE processes the packet?

A) When forwarding the packet to PE3, PE1 needs to add the BUM traffic label allocated by PE3 to the packet.
B) PE2 forwards the packet to CE1.
C) PE1 sends a MAC/IP advertisement route carrying the MAC address of CE1.
D) PE3 forwards the packet to CE1.

4. In the following figure, all routers are running OSPF. Given this, which of the following statements is correct?

A) R2 forwards the Router-LSAs generated by R1 to R3.
B) R2 forwards the Router-LSAs generated by R3 to R1.
C) R2 generates Router-LSAs only in area 0.
D) R2 generates Router-LSAs in both area 1 and area 0.

5. The TTL field encapsulated in the MPLS label header can prevent infinite loops of MPLS packets. Which of the following statements regarding the TTL field are correct?

A) MPLS provides two processing modes on the TTL field:TTL in the MPLS header copies the IP TTL value when an IP packet enters the MPLS network.The ingress LER sets the TTL value in the MPLS header to 255.
B) MPLS encapsulation in frame mode supports the TTL field. MPLS encapsulation in cell mode does not support the TTL field.
C) If TTL copy is disabled, users can use the tracert function to view the LSR of the MPLS domain.
D) The processing of IP TTL copy hides the LSR in an MPLS domain, improving network security.

Solutions: