Huawei H31-211 Online Practice Questions and Exam Preparation

Huawei H31-211 Online Questions & Answers

• Question 221:

  How many layers does the OSI reference model divide into networks?

  A. 3
  B. 5
  C. 6
  D. 7
  D. 7

• Question 222:

  The following description of the advantages of the three-layer exchange is correct?

  A. Based on hardware packet forwarding, low latency, low cost
  B. Based on package forwarding, low latency, high cost
  C. Based on package forwarding, low latency, low cost
  D. Based on hardware packet forwarding, high latency, low cost
  A. Based on hardware packet forwarding, low latency, low cost

• Question 223:

  Which of the following devices are working at the network layer?

  A. Hub B. Bridge
  C. Switch
  D. Router
  C. Switch

• Question 224:

  Which of the following are reserved VLAN IDs? (multiple choice)

  B. 1
  C. 1023
  D. 4095
  D. 4095

• Question 225:

  Which of the following protocols is used for port 20?

  A. telnet
  B. FTP
  C. DNS
  D. DHCP
  B. FTP

• Question 226:

  When the MSTP protocol is enabled, which of the following conditions do the bridges belong to the same MSTP domain? (multiple choice)

  A. Turn on root protection at the same time
  B. Have the same domain name
  C. The number of ports in the forwarding state is the same.
  D. The mapping between the VLAN and the instance is consistent.
  B. Have the same domain name
  D. The mapping between the VLAN and the instance is consistent.

• Question 227:

  A switch that uses STP, its one port goes from the learning state to the forwarding state to go through a forwarding delay. By default, how many seconds is the forwarding delay?

  A. 10
  B. 15
  C. 20
  D. 30
  B. 15

• Question 228:

  Which of the following addresses does 192.168.1.128/25 represent?

  A. Host
  B. Network
  C. Multicast
  D. Broadcasting
  B. Network

• Question 229:

  In which of the following cases, ICMP error report message is not sent? (multiple choice)

  A. The body of the ICMP error report
  B. All subsequent datagrams for the first fragmented datagram
  C. Datagrams with multicast addresses
  D. Datagram for special address 10.0.0.0
  A. The body of the ICMP error report
  B. All subsequent datagrams for the first fragmented datagram
  C. Datagrams with multicast addresses

• Question 230:

  Which of the following is incorrect about the Learning state in the Spanning Tree Protocol?

  A. The port in the Learning state can send and receive BPDUs.
  B. The port in the Learning state can learn the source MAC address of the packet.
  C. The port in the learning state only learns the source MAC address and does not forward data packets.
  D. The port in the Learning state can forward some data packets.
  D. The port in the Learning state can forward some data packets.