Free Access Huawei.H12-891_V1.0.v2022-10-03.q184 Practice Test (Page 22)

Question 101

In an intra-domain MPLSVPN network, when a packet enters the public network and is forwarded, it is encapsulated with two layers of MPLS tags, and the description of the two layers of tags in the following options is incorrect

A.The outer label of mpls VPN is assigned by the LDP protocol or statically, and the inner label is assigned by the MP-BGP neighbor of the peer

B.on the PE device By default, the outer label is ejected before the packet is forwarded to the last hop device

C.The outer label of MPLS VPN is called a private network label, and the inner label is called a public network label

D.The outer label is used to correctly send packets to the appropriate VPN in

Question 102

The correct statement about the difference between OSPFv2 and OSPFv3 is ? Multi-select

A.BOTH OSPFv2 and OSPFv3 support interface authentication. And OSPFv3 authentication is still based on the fields in the ospf message header

B.OSPFv2 has the protocol number 89 in the IPv4 packet header, OSPFv 3 The next number in the IPv6 message header is 89

C.The same type of message exists in OSPFv2, OSPFv3: Hello, DD, LSR, LSU, LSAack, Their message format is the same

D.OSPFv3 is similar to OSPFv2 in that it uses a multicast address as the OSPF message destination address

Question 103

The following description of the GVRP interface registration mode in Huawei switches is correct?

A.When fixed registration mode is selected, the interface cannot propagate dynamic VLANs

B.When the interface layer two operating mode must be hybird

C.When the normal registration mode is selected, allow the interface to dynamically register and unregister the VLAN. Logout here includes deleting dynamically learned VLANs and VLANs created natively by the administrator

D.GVRP when the register mode with forbidden is selected, there are four types of interface registration mode

Question 104

The following topology diagram is available, and it is correct to analyze the following statement accordingly

A.Because R does the route aggregation, R1 Only route entries of 10000/16 exist in the IP routing table

B.R1's IP routing table has both 10033/32 and 10000/16-bit route entries

C.There are route entries for 100 2/32 and 10033/32 in the IP routing table for R1

D.There are route entries for 100 2/32 and 10000/16 in the IP routing table for AR1

Question 105

Regarding the characteristics of CE double attribution, the description is wrong with ?

A.VRFs of two PEs connected to the same CE can belong to different VPNs.

B.CE and PE form a CE dual-home network, which can ensure high network availability.

C.In the CE dual home network, it is possible to generate loops, and you can use route-tag to solve the loop problem.

D.CE accesses the backbone through two links that can be used as both load sharing and primary and standby links.

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Question 101

Question 102

Question 103

Question 104

Question 105

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