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NEW QUESTION # 158
The link state value information between different ISIS processes of multiple routers is considered to be isolated.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 159
Which of the following statements about the freeway of LDP label retention is correct? (Multiple choice)
- A. Keep all labels distributed by neighbors
- B. Need more memory and label space
- C. Save memory and label space
- D. Only keep labels from next-hop neighbors, discard all labels sent by non-next-hop neighbors
Answer: A,B
NEW QUESTION # 160
Which of the following TLVs is added to IS-IS to support multi-topology?
- A. TLV232
- B. TLV129
- C. TLV236
- D. TLV229
Answer: D
NEW QUESTION # 161
To speed up the detection of link failures in an IS-IS network, you can associate IS-IS with BFD.
- A. True
- B. False
Answer: A
NEW QUESTION # 162
To prevent hackers from attacking user devices or networks through MA, C addresses, you can configure the MA, C addresses of untrusted users as black hole MA, C addresses to filter out illegal MA, C addresses.
- A. True
- B. False
Answer: A
NEW QUESTION # 163
Regarding the MPLS forwarding process, the description of Ingress node forwarding is correct:
- A. CheckNHLFETable entry, you can get outbound interface, next hop, outbound label and label operation type The label operation type isPush
- B. existIPThe obtained label is pressed into the packet, and according to theQoSPolicy processingEXRSimultaneous processingL,,Then the packagedMPLSThe packet is sent to the next hop
- C. IngressAfter the node receives the data packet, it will first checkILMlooking forTunnel ID
- D. according toILMtableTunnel IDfind the correspondingNHLFEentry, willLFIBentry andNHLFEtable entry
Answer: A,B
NEW QUESTION # 164
EGP authentication can prevent illegal routers from establishing neighbors with B, CP routers. B, CP authentication can be divided into MD5 Authentication and Keychain authentication, which of the following BGP documents will carry the B, CGP Keychain authentication letter interest? (header carry)
- A. Open
- B. Update
- C. Notice
- D. Keepalive
Answer: A,B,C,D
NEW QUESTION # 165
A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFv3 to implement IPv6 network interconnection. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Which of the following statements is true about the description of this LSA?
- A. IPv6 address prefix for GEO/0/0: 2001:DB8:2345:23::/64
- B. The SA shows 2 does not support external routing, but participates in IPv6 routing calculation
- C. The router that generates this LSA is R2 port R2 connected
- D. The link-local address of R2 interface GEO/0/0 is: FE80::2E0:FCFF:FEC, D:4F79
Answer: A,C,D
NEW QUESTION # 166
As shown in the figure, all interfaces of the router enable DSPF. The cost value of the link is marked in the figure. R2 The LoopbackD interface is advertised in area 1, then the cost of R1 reaching 10.2/32 is?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 167
As shown in the figure, OSPF is enabled on all the routers. The IP address marked in the figure is the IP address of the loopbackO interface of the device. The LoopbackO of R1 and R2 is advertised in area 1, the LoopbackO of R4 is advertised in area 0, and the LoopbackO of R3 and R5E is advertised in area 0. In area 2, which of the following IP addresses can ping each other?
- A. 10.0.3.3and10.0.5.5 (same area1kind)
- B. 10.0.4.4and10.022 (normal calculation3kind)
- C. 10.022and10.0.5.5 (Non-backbone area received3class received does not count)
- D. 10.0.2.2and10.0.3.3 (Non-backbone area received3class received does not count)
Answer: A,B
NEW QUESTION # 168
Deployment in a small and medium-sized networkOSPF,When viewing the routing table of a device, it is found that there are only directly connected routes.
It is not possible for the operation to cause the fault?
- A. Incorrect routing policy configuration
- B. The configured user permissions are too low
- C. Routing protocol configuration error
- D. Port address assignment problem
Answer: B
NEW QUESTION # 169
In an MPLS VPN network, data packets are forwarded when they enter the public network. Will be encapsulated with two layers of MPLS labels.
Which of the following descriptions are correct about the processing of the data packet? (Multiple choice)
- A. The outer label of the packet received by the penultimate hop device is 3
- B. The Egress PE device receives untagged IP packets
- C. The Egress PE device correctly sends the data packet to the corresponding VPN according to the inner label
- D. The packet is forwarded to the Egress PE device after the outer label pops up on the penultimate hop device
Answer: C,D
NEW QUESTION # 170
Which of the following statements is false when troubleshooting the dual-active failure of a VRRP backup group?
- A. need to checkVRRPgroup of virtualIPIs the address the same
- B. Interface needs to be checkedIPWhether the address is in the same network segment
- C. need to check the interfaceVRRPGroupIDIs it the same
- D. No need to check deliveryVRRPWhether the switch port of the advertisement message is in the sameVLAN
Answer: D
NEW QUESTION # 171
A park deployed IPv6 for business testing. There are 4 routers in the network, running OSPFV3 to realize the interconnection and intercommunication of IPv6 networks. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Regarding the description of the LSA, which of the following statements are correct? (Multiple choice)
- A. The IPv6 address prefix of the R2 interface GE0/0/0 is 2001:2343: 23: :/64
- B. The LSA shows that R2 does not support external routing, but participates in IPv6 routing calculations
- C. The router that generated the LSA is R2
- D. The link-local address of the R2 interface GE0/0/0 is FE80::2E0; FCFF:FECD:4F79
Answer: A,C,D
NEW QUESTION # 172
According to this picture, what can we judge? (Multiple choice)
- A. IS-IS IPv6 is not enabled on GE0/0/1 of R1
- B. The IS-IS interface type of GE0/0/1 of R1 is Leve-1
- C. IS-IS IPv6 is enabled on GE0/0/0 of R1
- D. The IS-IS interface type of the GE0/0/0 interface of R1 is Level-1-2
Answer: C,D
NEW QUESTION # 173
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.
- A. True
- B. False
Answer: A
NEW QUESTION # 174
As shown in the figure, R1, R2, R3, and R4 are in the same PLs domain, and LDP is used to distribute IPLS labels between devices. R4 is the Egress LSR of the FEC 4.4.4.0/24. If you want to achieve R1 access
4.4.4.0/24, R4 does not need to query the label table but can know the forwarding priority of the data, then the outgoing label of R3 for the FEC should be:____. (Please fill in the Arabic numerals directly, without symbols)
Answer:
Explanation:
(0)
NEW QUESTION # 175
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