Question 1

In the topology shown in the figure, the entire network runsOSPFv3agreement inNoIn the case of attracting external routes,R1which type ofLAS?

Options :

A : Intra-Area-Prefix-LSA

B : Link-LSA

C : Inter-Area-Router LSA

D : Inter-Area-Prefix-LSA

Answer: C

Question 2

In intra-domain MPLS VPN networks, data packets will be encapsulated with two layers of MPLS when they enter the public network and are forwarded. Label, a description of the two-layer label in the following options. What is wrong is:

Options :

A : MPLS VPNThe outer label is made byLDPprotocol or statically assigneD. the inner label is assigned by the correct end MP-BGPassigned by neighbors

B : By default, the outer label is popped before the packet is forwarded to the last hop device

C : M PLS VPNThe outer layer is labeled as a private network label, and the inner layer label is called a public network label.

D : Layer labels are used inPEThe device sends the packet correctly to the correspondingVPNmiddle

Answer: C,D

Question 3

In the VLAN aggregation technology, multiple Sub-VLANs are used to isolate wide-open domains, and these Sub-VLANs are aggregated.

Synthesizing a logical Super-VLAN, a company divides different departments into different Sub-VLANs,

because

Sub-VL AN not only includes physical connection, but also can establish three-layer VLAN ANIF interface,

which can directly carry out three-layer communication with external network.

Options :

A : True

B : False

Answer: B

Question 4

Which of the following statements about the MP_REA, CH_NLRI attribute of BGP4+ is correct?

Options :

A : The length of the next hop address can be16or3

B : AFI (address family)value is2,representIPv6

C : NLRIfield carryIPv6Routing prefix and mask information

D : the length of the next hop address is16Time,Network Address of Next Hopcarries the link-local address

Answer: A,B,C

Question 5

From this picture, we can judge

Options :

A : If not configured aboutAS_Pathrouting strategy, then3002:-4/128 —must not originate fromAS 65001

B : R1does not have3002:3/128and3002.-4/128routing

C : R1have3002.-3/128and3002:.4/128routing

D : If not configured aboutAS_Pashrouting strategy, then3002:4/28must have originated fromAS 65001

Answer: C,D

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