[2023年更新]H12-831-ENUリアルな試験問題集でH12-831-ENU練習テスト [Q226-Q243]

[2023年更新]H12-831-ENUリアルな試験問題集でH12-831-ENU練習テスト

H12-831-ENU問題集でHCIP-Datacom高確率練習問題集

Huawei H12-831-ENU：HCIP-Datacom試験は、データ通信分野のプロフェッショナルのスキルを認定するために設計されています。試験は、ネットワークの設計、展開、運用、最適化の領域での候補者の能力をテストします。これは、候補者のデータ通信分野での能力を示す、世界的に認められた認定資格です。

質問 # 226
OSPFv2 is an IGP running on an IPv4 network, OSPFV3 is an IGP running on an IPv6 network. The packet types of OSPFV3 and OSPFV2 are the same, including Hello packets, DD packets, LSU packets, LSU packets, and LSAck packets. Which of the following statements is true about OSPFv3 packets?

A. OSPFv3 uses IPv6 multicast address FF02
B. The OSPFV3 Hello packet carries the IPv6 address prefix list of the router interface
C. OSPFv3 uses the link-local address as the source address of the outgoing packet. The packet can be forwarded outside the range of the originating link
D. OSPFV3 uses the authentication field in the packet header to complete packet authentication

正解：A

質問 # 227
Which of the following descriptions about BGP/MPLS IPVPN data forwarding is wrong?

A. The outer label of data forwarding can be assigned by LDP
B. The inner label of data forwarding is allocated by MP-BGP
C. The data sent by PE to CE is IPv4 packet
D. When data is transmitted in the BCP/MPLS IP VPN backbone network, it always carries two layers of labels

正解：D

質問 # 228
Which of the following tools cannot be used to match BGP routing entries?

A. Advanced ACL
B. Community Filter
C. Basic ACL
D. IP Prefix List

正解：A

質問 # 229
In the vAR application scenario, which functions of the AR router can be virtualized on the server? (Multiple choice)

A. Firewall
B. VPN
C. NAT
D. VOIP

正解：A、B、C、D

質問 # 230
In MPLS network, there are different operation types for labels, among which the meaning of "pop" action is?

A. Remove the top label in the MPLS label stack
B. Replace the top label with another set of labels
C. Add the top label to the MPLS label stack
D. Replace the top label with another value

正解：A

質問 # 231
If you want to check the files under Flash, which command should you use?

A. dir sd0
B. dir flash
C. dir sdl
D. display patch-information

正解：B

質問 # 232
As shown in the figure, a campus deploys OSPF to achieve network interoperability, and the Area is deployed as an NSSA area.

In order to allow R1 to access the loopback interface address of R4, an engineer introduces a direct route into the OSPF process of R4. Which of the following descriptions are correct? (Multiple choice)

A. R2 is the border translator for the NSSA area and will convert Type7 describing the default route
B. R4 is the ASBR within the NSSA area
C. R2 is the border translator for the NSSA area and will convert Type7 describing the external route

正解：B、C

質問 # 233
As shown in the figure, all routers run OSPF, because R3 is in the backbone area, so there are no three types of LSAs in R3's LSDB.

A. FALSE
B. TRUE

正解：A

質問 # 234
If the BFD session goes down, the direct link will fail.

A. FALSE
B. TRUE

正解：A

質問 # 235
Which of the following statements about OSPF's Router LSA and Network LSA is wrong? (Multiple choice)

A. Network LSA carries both topology and routing information
B. A router running OSPF must generate a Network LSA
C. Routers running OSPF must generate Router LSAs
D. There must be both Router LSA and Network LSA in an OSPF network

正解：B、D

質問 # 236
IS-IS is a link-state routing protocol that uses the SPF algorithm for route calculation. A campus deploys both IPv4 and IPv6 and runs IS-IS to achieve network interconnection.
As shown in the figure, the IPV4 and IPv6 costs of this network are the same, and R1 and R4 only support IPV4. By default, in the IPv6 shortest path tree formed by calculation, the next hop device for R2 to access R6 is: ( ). (Note: the device name must be the same as the figure, such as: R1)

A. R3

正解：A

質問 # 237
As shown in the figure, the network has a loop because STP is not enabled. Which of the following may be caused? (Multiple choice)

A. MAC address table flapping
B. A large number of broadcast messages can be received on the Host
C. Device CPU usage is too high
D. The device will have a loop alarm

正解：A、B、C、D

質問 # 238
In order to advertise IPv6 routes in BGP4+, what fields are added in Update?

A. A new path attribute: MP_REACH NLRI
B. A new NLRI type, IPv6 NLR
C. A new path attribute: IPV6_REACH_NLRI
D. A new path attribute: AP_UNREACH_NLRI

正解：A

質問 # 239
In the process of establishing an LDP session, the active party will first send Initialization information to negotiate parameters. If the passive party does not accept the negotiated parameters, it will send:

A. Hello Message
B. Error Notification Message
C. Keepalive Message
D. Initialization Message

正解：B

質問 # 240
High-risk operations refer to all operations that may affect the stable operation of equipment, the normal operation of customer services, or the normal monitoring of network management.

A. True
B. False

正解：A

質問 # 241
QinQ technology is a technology to expand the VLAN space. It can achieve the function of expanding the VLAN space by adding a layer of 802.1Q Tag on the basis of the 802.1Q tag message. Which of the following statements about QinQ is false?

A. QinQ increases the number of VLANs to 4095*4095
B. The basic QinQ is implemented based on the interface
C. QinQ technology can make the private network LAN transparently transmitted on the public network
D. Flexible QinQ can add different outer tags according to different inner tags

正解：A

質問 # 242
OSPF fast convergence is an extended feature to improve the speed of routing convergence. The working principle of PRC (Partial Route Calculation) is: when the network topology changes, only path calculation is performed on the affected nodes, thereby speeding up route computation.