Huawei Huawei Certifications H31-211 Questions & Answers

• Question 331:

  Regarding the process of terminal users accessing the Internet, what are the correct descriptions below? (multiple choice)

  A. The user initiates an Internet access request, and the Layer 2 device of the access network establishes a Layer 2 connection for the user and transparently transmits the request to the upper BRAS device.

  B. The access network does not control the user, but simply establishes a Layer 2 connection to transparently transmit user information to the upper device.

  C. SR is responsible for the authentication, authorization, and assignment of IP addresses to users.

  D. After the user authentication succeeds, the BRAS routes the user packet to the upstream device, that is, the aggregation layer device.

  Correct Answer: ABD

• Question 332:

  What level of functionality is addressing and routing in the OSI reference model?

  A. Physical layer

  B. Data link layer

  C. Network layer

  D. Application layer

  Correct Answer: C

• Question 333:

  When a router that enables proxy ARP receives an ARP request packet, it finds that the destination address of the packet is not its own. Which operation is required? (Multiple selection)

  A. Discard the message

  B. Find the route to the destination address

  C. If there is a route to the destination address, send its own MAC address to the ARP requester.

  D. Broadcast ARP request message

  Correct Answer: BC

• Question 334:

  What is the packet that the STP downstream device uses to notify the upstream device that the network topology changes?

  A. Agency BPDU

  B. TCN BPDU

  C. Discover BPDUs

  D. Reverse BPDU

  Correct Answer: B

• Question 335:

  What are the main functions of Reverse Address Resolution Protocol (Inverse ARP)? (multiple choice)

  A. Find the hardware address of the device through the network address of the network device

  B. Find the connected DLCI number

  C. Find the protocol address of the peer device connected to the virtual circuit in the frame relay network.

  D. Generating the mapping of the peer protocol address and DLCI in the frame relay network

  Correct Answer: CD

• Question 336:

  When a redundant path occurs in a Layer 2 switched network, what method can be used to prevent loop generation and improve network reliability?

  A. Spanning Tree Protocol

  B. Horizontal segmentation

  C. Toxicity reversal

  D. Shortest path tree

  Correct Answer: A

• Question 337:

  In VRP, what are the following statements about RIP route aggregation?

  A. RIP V1 supports route aggregation by default. You can disable route aggregation when needed.

  B. RIP V2 supports off route aggregation.

  C. RIP V1 does not support CIDR

  D. RIP V2 supports subnet route aggregation

  Correct Answer: BCD

• Question 338:

  What is the role of the port type Dot1q_tunnel on the switch?()

  A. Vlan ID translation

  B. Vlan ID replacement

  C. Vlan ID overlay (QinQ)

  D. Delete the Vlan ID

  Correct Answer: C

• Question 339:

  How many insulated copper wires are discharged together and then twisted together in a regular way to form a twisted pair?

  A. 2

  B. 3

  C. 8

  D. 16

  Correct Answer: A

• Question 340:

  Which configuration method can be used to add the trunk port ethernet0/1 of the switch to VLAN 4? (multiple choice)

  A. [Switch]vlan 4 [Switch-vlan4]port ethernet 0/1

  B. [Switch]vlan 4 [Switch-Ethernet0/1]port trunk pvid vlan 4

  C. [Switch]vlan 4 [Switch-vlan4]port trunk ethernet 0/1

  D. [Switch]vlan 4 [Switch -Ethernet0/1]port trunk permit vlan 4

  Correct Answer: ABD