[2022年最新] 最高のH12-831_V1.0-ENU試験問題集を使って- 実際の試験問題と解答を解こう
テストエンジンを練習してH12-831_V1.0-ENUテスト問題
質問 70
Regarding the role of ping and tracert, which of the following statements is correct?
- A. Tracert must be able to trace every hop IP address from source to destination
- B. Ping detects the two-way reachability between the correct end and the one-way icmp echo request packet
- C. Tracert has the same function as ping, but the name is different
- D. Ping verifies the reachability from the local end to the opposite end, it does not mean that the opposite end is reachable from the local end
正解: D
質問 71
The configuration shown in the figure is performed on R2 to filter all received routes. Assuming that there is a BGP route with the AS_Path attribute of [100 200 300 400] on R1 that needs to be sent to R2, please help the network administrator to adjust the order of AS in the AS_Path attribute of the route on R1 to ensure that the routing entries will not be filtered by the routing policy of R2. (Sorting questions)
- A. 0
- B. 1
- C. 2
- D. 3
正解: A,B,C,D
質問 72
If you want to check files under Flash, which command should use?
- A. dir flash:
- B. display patch-information
- C. dir sdl:
- D. dir sd0:
正解: A
質問 73
According to this picture, what can we judge? (Multiple choice)
- A. If the routing policy on AS_Path is not configured, then 3002:-4/128 must not originate from AS 65001
- B. If the routing policy on AS_Pash is not configured, then 3002:4/28 must originate from AS 65001
- C. R1 does not have routes of 3002:.3/128 and 3002.-4/128
- D. R1 has routes of 3002.-3/128 and 3002:.4/128
正解: B,D
質問 74
The routing attributes of the three routing entries are shown in the figure. Assuming that the next hop of the three routing entries are all reachable, when the three routing entries arrive at the BP router in sequence, by default, BGP will finally select one route entry?
- A. Route B
- B. Route C
- C. Route A
正解: C
質問 75
As shown in the figure, the cost value of the link that all interfaces of the router enable DSPF is identified in the figure.
The Loopback D interface of R2 is advertised in area 1. Then the cost value of R1 to 10.2/32 is:
- A. 0
- B. 1
- C. 2
- D. 3
正解: B
質問 76
MPLS has the concept of FEC-Forwarding Equivalence Class, so on which of the following standards cannot FEC be allocated based?
- A. Application Protocol
- B. Class of Service
- C. Destination Addess
- D. Fragment of offiset
正解: D
質問 77
In an MPLS network, there are different types of operations for labels, among which the meaning of the "pop" action is?
- A. Replace the top label with another set of labels
- B. Add the top label to the MPLS label stack
- C. Remove the top label from the MPLS label stack
- D. Replace the top label with another value
正解: C
質問 78
Configure under a certain interface: isis timer hello 5 leve1-2, which of the following statements is correct?
- A. The interval for sending Level-2 hello packets on this interface is 5s
- B. The hello packet sending interval of Level-1 and Leval-2 of this interface is 3s.
- C. The interval for sending Level-2 CSNP packets of this interface is 5s
- D. The interval for sending Level-1 hello packets on this interface is 5s
正解: A
質問 79
The network administrator A wants to use ACL to match only the four routing entries 1, 3.5, and 7 in the figure. How many ACL rules does the network administrator A need to configure at least?
- A. 0
- B. 1
- C. 2
- D. 3
正解: C
質問 80
In the finishing work of the structured network troubleshooting process, which of the following are the documents that need to be handed over? (Multiple choice)
- A. Maintenance suggestions to avoid the failure
- B. Troubleshooting summary report
- C. Troubleshooting process documentation
正解: A,B,C
質問 81
By default, the Domain ID of each OSPF process running on the router is the same as the process number of the process, which can be modified by the domain-id command under the process
- A. FALSE
- B. TRUE
正解: A
質問 82
(Drag and drop) Please match the following DHCP attack types with corresponding explanations.
正解:
解説:
質問 83
In the intra-domain MPLS VPN network, when a data packet enters the public network and is forwarded, it will be encapsulated with two layers of MPLS labels. Which of the following description is wrong about the two layers of labels? (Multiple choice)
- A. The outer label of MPLS VPN is called the private network label. The inner label is called the public network label.
- B. The outer label is used to correctly send the data packet to the corresponding VPN on the PE device
- C. By default, the outer label is ejected before the packet is forwarded to the last-hop device
- D. The outer label of MPLS VPN is allocated by the LDP protocol or statically, and the inner label is allocated by the MP-BGP neighbor at the correct end.
正解: A,B
質問 84
Which of the following are not included in the security protection actions that a secure MAC address can perform?
- A. Remark
- B. Protect
- C. Restrict
- D. Shutdown
正解: A
質問 85
Which of the following tools cannot be used to match BGP routing entries?
- A. IP Prefix List
- B. Basic ACL
- C. Community Filter
- D. Advanced ACL
正解: D
質問 86
As shown in the figure, the carrier BGP/MPLS IP VPN backbone network constructs SP through DP. If you want to realize the intercommunication between the two sites of user X through the BGP/MPLS IPVPN network, the 32bit mask of Loopback interface address must be used between PE1 and PE2 to establish the MP-IBGP peer relationship.
- A. TRUE
- B. FALSE
正解: A
質問 87
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