H12-211

H12-211 practice questions, page 5 of 17, with answer review and explanations.

Question 21

Refer to the capture output. The administrator has captured three packets in the network. Which statement regarding the captured packets is incorrect?

  1. This packets represent a TCP three-way handshake process.
  2. 10.0.12.1 is the telnet server, while 10.0.12.2 is the telnet client.
  3. The three packets contain no application data.
  4. 10.0.12.1 uses port 50190 to buid the telnet connection.

Question 22

An Ethernet frame is captured by network protocol analyzer tool and the value of Type/Length field is 0x0800. Which of the following statements about the frame are correct? (Choose two)

  1. The frame structure of the frame is Ethernet_II
  2. The frame structure of the frame is 802.3
  3. Its upper layer protocol is IP
  4. Its upper layer protocol is IPX

Question 23

Which of the following descriptions regarding the TTL field of the IP packet is correct?

  1. The TTL defines how many packets the source can send.
  2. The TTL defines the duration during which the source can send packets.
  3. The TTL value will decrement by 1 each time the packet is routed.
  4. The TTL value will increment by 1 each time the packet is routed.

Question 24

Which of the following statements are correct about TTL field in IP packet? (Choose two)

  1. The maximum value of TTL is 65535.
  2. Normally, it's impossible for a router to receive a packet whose TTL is zero.
  3. The main purpose of TTL is to prevent IP packets from circulating endlessly in a network which can consume a lot of bandwidth.
  4. TTL value will be decremented as a packet is passed through the network devices such as hub, LAN switch and router.

Question 25

In the case of Huawei router, what is the "-i" parameter in a Ping command issued on a VRP operating system used to set?

  1. Interface for sending an Echo Request packet
  2. Source IP address for sending an Echo Request packet
  3. Interface for receiving an Echo Reply packet
  4. Destination IP address for receiving an Echo Reply packet