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NEW QUESTION 227
As show in the figure, which of the following statements is true?
- A. R1 and 2 cannot establish adjacency, because the network type of the interface is not consistent
- B. R1 and R2 cannot establish adjacency, because OSPF process ID is not consistent
- C. R1 and R2 can establish adjacency, but cannot complete routing calculations
- D. R1 and R2 can establish adjacency and can complete routing calculations
Answer: C
NEW QUESTION 228
A certain network runs IS-IS. The L SP information of a router R4 in the network is shown in the figure. Which of the following statements is correct? (Multiple choice)
- A. The LSP is the LSP generated by the pseudo node
- B. The cost of R4 to reach the external route is 64
- C. The System ID of R4 is 4004.0000.0004
- D. The external route described by this LSP is 10.0.4.3/32
Answer: B,C,D
NEW QUESTION 229
In the description of the default priority of each protocol under the VRP platform, which is correct?
- A. The priority of static routing is 60
- B. The priority of BGP routing is 20
- C. The priority of OSPF routing is 15
- D. The priority of ISIS routing is 10
Answer: A
NEW QUESTION 230
When the administrator configures VRRP, which of the following are not mandatory? (Multiple choice)
- A. Virtual IP address
- B. Priority of virtual routers
- C. Preemption delay
- D. Preemption mode
Answer: B,C,D
NEW QUESTION 231
The state inspection firewall uses the session table to track the active TCP sessions and UDP sessions, and the firewall security policy determines which sessions are established, and the data packets will only be forwarded when they are associated with the session.
- A. True
- B. False
Answer: A
NEW QUESTION 232
Regarding the accompanying business, which of the following statements is correct? (Multiple choice)
- A. The administrator does not need to care about the user's IP address when configuring the policy
- B. In the free mobility solution, the administrator does not need to repeat the configuration for each device
- C. The controller is not only the certification center in the campus network, but also the management center of business strategies
- D. The administrator can execute the business strategy on the device in the controller system-manage the entire network strategy
Answer: A,B,C,D
NEW QUESTION 233
In PIM-DM, which combination of working mechanisms constructs SPT? (Multiple choice)
- A. State refresh
- B. Grafting
- C. Diffusion
- D. Pruning
Answer: A,B,C,D
NEW QUESTION 234
The following is a router BGP error output information, which description of this information is wrong?
<HUAWEL>display bgp error Error Type: Peer Error Date/Time:2010-03-2211:40:39 Peer Address:10.1.1.2Error lnfo Router-id conflict
- A. The error occurred at 11:40:39 on March 22, 2010
- B. False may be caused by the wrong AS number of the peer
- C. The router's neighbor address is 10.1.1.2.
- D. Error Type display because the neighbor relationship False caused
Answer: B
NEW QUESTION 235
As shown is an IP packet header, which of the following statement is true?
- A. The packet must be an IPsec VPN packet installed only with AH
- B. The protocol number 51, which means that the message after the IP Header is the ESP header
- C. The protocol number is 51, which means that the packet after the IP Header is the AH header
- D. The message is a lpsec VPN message, and the data part of the message is encrypted
Answer: B
NEW QUESTION 236
One of the features of OSPF is that it only supports MD5 authentication.
- A. True
- B. False
Answer: B
NEW QUESTION 237
Which of the following strategies or tools cannot be applied to OSPF?
- A. access-list
- B. prefix-list
- C. route-policy
- D. as-path filter
Answer: D
NEW QUESTION 238
Regarding the ABR in OSPF, which of the following description is wrong?
- A. There are multiple LSDBs on the ABR, and the ABR maintains one LSDB for each area
- B. ABR cannot generate Type 3, Type 4, or Type 5 LSA
- C. The Type 1, Type 2, and Type 3 LSA in the backbone area of the ABR are converted to Type 3 LSA and published to the connected non-skeletal area
- D. Convert the Type 1 and Type 2 LSAs in the connected non-skeletal area into Type 3 LSAs and publish them to the backbone area
Answer: B
NEW QUESTION 239
The router receives two BGP routes with the following attributes, please select the best route according to the BGP routing rules:
- A. The best route to route N, due to its MED is smaller than route M
- B. The best route to route N, due to its AS_Path is longer than route N
- C. The best route to route M, due to its MED is larger than route N
- D. The best route is route M, due to its AS_Path is shorter than route N
Answer: D
NEW QUESTION 240
In order for the non-directly connected EBGP neighbors to be established normally, which of the following configurations must be included? (Multiple choice)
- A. Peer connect-interface
- B. peer ignore
- C. peer as-number
- D. peer ebgp-max-hop
Answer: C,D
NEW QUESTION 241
What is the meaning of B in the FLAG field in the forwarding table?
- A. Static routing
- B. Gateway routing
- C. Available routes
- D. Black hole routing
Answer: D
NEW QUESTION 242
After the dual-system hot backup is configured, the main and backup channels cannot be established. The information on the active device cannot be backed up to the backup device normally, causing the dual-system hot backup function to be abnormal. The possible cause of the failure is? (Multiple choice)
- A. The source IP address and source port number of the local end are inconsistent with the destination IP address and destination port number of the opposite end
- B. The priority of the two ACs is the same
- C. TCP channel is not established
- D. The retransmission times and retransmission intervals of the primary and secondary service packets at both ends are inconsistent
Answer: A,C,D
NEW QUESTION 243
In the IS-IS broadcast network, which multicast MAC address does the Level-2 router use as the destination address for sending lH?
- A. 0100-5EO0-0002
- B. 0180-c200-0015
- C. 0180-c200-0016
- D. 0180-c200-0014
Answer: B
NEW QUESTION 244
OSPF can support multiple network types. Which of the following network types need to elect DR and BDR? (Multiple choice)
- A. P2P
- B. P2MP
- C. NBMA
- D. ROADCAST
Answer: C,D
NEW QUESTION 245
The shortest path from the multicast source to the receiver becomes the shortest path tree SPT.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 246
The RSTP protocol provides a variety of protection functions. For example, when the edge port is configured in the protected state, after the edge port receives the BPDU message, what is the processing method?
- A. Forward BPDU packets as required
- B. Close the port
- C. Directly discard BPDU packets
- D. Get relevant information after BPDU message
Answer: B
NEW QUESTION 247
As shown in the figure, four routers in the same LAN are running lS-IS, where R1 is DIS, then R2, R3, R4 establish adjacency relationship with R1 respectively, and no adjacency relationship is established between R2, R3, and R4.
- A. True
- B. False
Answer: B
NEW QUESTION 248
By default, the interval for sending PIM Hello packets on the router interface is () seconds.
Answer:
Explanation:
30
NEW QUESTION 249
The advanced access control list is a series of sequential rules composed of permit l deny statements. These rules can match IP packets according to which of the following attributes? (Multiple choice)
- A. Destination port number
- B. Source port number
- C. Destination address
- D. Source address
Answer: A,B,C,D
NEW QUESTION 250
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