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Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) Sample Questions:

1. Regarding the cross-domain VPN-OptionB scheme, which of the following description is wrong?

A) An IP-EBGP neighbor relationship needs to be established between the two ASBRs.
B) The cross-domain VPN-Option B scheme is not limited by the number of interconnected links between ASBRs.
C) During the packet forwarding process, exchange the private network LSPs of the VPN on the two ASBRs.
D) Exchange the outer label of the VPNv4 route between the two ASBRs.

2. The OSPFv3 Option field appears in all LSAs.

A) True
B) False

3. Regarding the basic forwarding process of MPLS, which of the following description is wrong?

A) When the IP packet enters the MPLS domain, the tunnel ID corresponding to the destination IP address is checked. If the tunnel ID is 0x0, the MPLS forwarding process is entered.
B) By default, the value of the label assigned to the penultimate hop node by the Egress1 node that supports PHP is 3.
C) When the packet is forwarded in the MPLS domain, the top label of the MPLS packet is replaced with the label assigned by the next hop according to the label forwarding table.
D) When an IP packet enters the MPLS domain, the MPLS border device inserts a new label between the packet header and the IP header.

4. Regarding the introduction of routes, which of the following description is wrong?

A) bgp supports both import and network when generating routes. Network mode is more accurate.
B) Introducing IBGP routes in OSPF may cause routing loops.
C) After ISIS's level-2 network route is imported to the level-1 network, if the import policy is not manually configured, a routing loop is formed.
D) By default, the default metric of the external route redistributed by OSPF is 1, and the imported external route type is Type2.

5. The router HW1 exists as an MPLS LSR router in the network of the operator HW. The router receives a packet carrying a label, but the label entry does not exist in its LFIB. So how does the router handle the packet?

A) Router HW1 will strip the label and find the IP destination address of the FIB.
B) Router HW1 uses LDP to create an LSP and creates a new path for the label carried in the packet in the LFIB.
C) Router HW1 will forward the packet using the default label.
D) Router HW1 will discard the packet.

Solutions: