H12-831_V1.0-ENU問題集、Huawei実際の試験問題

質問 1

As shown in the figure, the message is forwarded based on MPLS in the network. When PE2 receives the message sent by P2, which of the following is the label value carried in the message?

A. 3

B. 1033

C. No label

D. 3,1033

正解: C

質問 2

In a certain MPLS network, the LSP information of R1 and R3 is shown in the figure. At this time, the administrator enters the command ping -a 1.1.1.1 3.3.3.3 on R1. Which of the following descriptions of this scenario is correct?

A. The Echo Request message received by R2 does not carry a label, and the Echo Reply message received by R2 does not carry a label either.

B. The Echo Request message received by R2 carries label 1025, while the Echo Reply message received by R2 does not carry a label.

C. The Echo Request message received by R2 carries label 1025, and the Echo Reply message received by R2 carries label 1024

D. The Echo Request message received by R2 does not carry a label, and the Echo Reply message received by R2 carries label 1024

正解: C

質問 3

A BGP router receives a BGP route whose AS_Path attribute is "100200300". If the router wants to reject this route, which of the following as-path-filters can it use? (Multiple choice)

A. ip as-path-filter l deny 00$

B. ip as-path-filter l deny.*

C. ip as-path-filter l deny 00.*30

D. ip as-path-filter l deny 200

正解: A,B

質問 4

IPSG is a source IP address filtering technology based on Layer 3 interfaces. It prevents malicious hosts from forging authorized hosts' IP addresses to access authorized network resources.

A. FALSE

B. TRUE

正解: B

質問 5

A large Internet service provider needs to shut down the equipment in the computer room for maintenance in batches. As a cutover project manager, which of the following time points would you prefer?

A. Working Days

B. National Day

C. Weekend

D. Labor Day

正解: A

質問 6

MPLS needs to assign labels to messages in advance and establish an LSP before it can forward messages. LSP is divided into static LSP and dynamic LSP. Which of the following protocols can be used to establish a dynamic LSP? (Multiple choice)

A. LDP

B. IS-IS

C. PIM-SM

D. RSVP-TE

正解: A,D

質問 7

An enterprise service route is transmitted in the network, and the partial configuration of PE1 and PE2 is shown in the figure. In this scenario, which of the following types of LSAs may CE2 receive? (Multiple choice)

A. Type 1 LSA

B. Type 7 LSA

C. Type 5 LSA

D. Type 3 LSA

正解: A,B,C,D

質問 8

On the OSPF network shown in the figure, area 1 is a stub area, area 2 is a totally stub area, and area 3 is an NSSA.
Which of the following routers are unable to import external routes?

A. R3

B. R4

C. R6

D. R5

正解: A,C

質問 9

In the IS-IS IPv6 network shown in the figure, all routers have multi-topology enabled. The IPv6 address of the R4 Loopback0 interface is 2000::4/128, and "ipv6 summary 2000::64 level-1-2" is configured in the R2 IS-IS process.

Which of the following is wrong in the default case?

A. R1 has a routing entry for 2000::4/128 in its routing table.

B. R1 routing table has a routing entry for 2000::4/64

C. R2's routing table has a route entry for 2000::4/64

D. R2 has a routing entry for 2000::4/128 in its routing table.

正解: C

質問 10

Which of the following reasons may cause the local device to be unable to learn the ARP information of the other device? (Multiple choice)

A. The physical layer of the connection is not normal

B. Link transmission is unstable or optical power is insufficient

C. The address configured on the interface is not in the same network segment as the peer device.

D. The device is attacked by ARP

正解: A,B,C,D

質問 11

Port security is achieved by converting the dynamic MAC address learned by the interface into a secure MAC address, including secure dynamic MAC, secure static MAC and sticky MAC. Which of the following descriptions about secure MAC addresses are correct? (Multiple choice)

A. By default, these three types of MAC address information will not be aged.

B. The difference between secure dynamic MAC and sticky MAC is that the MAC table entry of the former will be lost after the device is restarted.

C. If you manually save the configuration and restart the device, the secure static IAC address information will be lost

D. Port Secure Dynamic MAC and Sticky MAC both convert dynamically learned MAC addresses into secure addresses

正解: A,B,D

質問 12

The detection mechanism of BFD is that two systems establish a BFD session and periodically send BFD control messages along the path between them. If one party does not receive the BFD control message within a specified time, it is considered that a fault has occurred on the path.
Which of the following reasons will not cause the BFD session to go Down?

A. The outbound interface bound to the single-hop BFD session is physically faulty.

B. The remote identifier and local identifier of the BFD session do not match

C. The message with UDP port number 4784 is rejected

D. The session-name of the BFD session is inconsistent

正解: D

質問 13

When configuring VLAN aggregation, before adding a Sub-VLAN to a Super-VLAN, you must delete the VLANIF interface corresponding to the Sub-VLAN.

A. True

B. False

正解: A

質問 14

In the OSPF network shown in the figure, the area numbers are marked in the figure. Area 1 is a stub area, area 2 is a totally stub area, and area 3 is an NSSA area. Which of the following types of LSAs will not appear in areas 1, 2, and 3?

A. Type4

B. Type2

C. Type1

D. Type3

正解: B

Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - H12-831_V1.0-ENU 模擬練習