H12-811

H12-811 practice questions, page 14 of 18, with answer review and explanations.

Question 66

The last option field (option) of an IPv4 packet is a length-variable and optional field. What is the maximum length of this field?

  1. 40B
  2. 10B
  3. 20B
  4. 60B

Question 67

Which of the following are not layers in the TCP/IP model? (Choose all that apply.)

  1. Session layer
  2. Network layer
  3. Application layer
  4. Presentation layer
  5. Transport layer

Question 68

Compared with STP, which of the following port roles does RSTP add? (Choose all that apply.)

  1. Root port
  2. Designated port
  3. Alternate port
  4. Backup port

Question 69

When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches? (Choose all that apply.)

  1. The physical interface rates of the interconnected switches are the same.
  2. The physical interface IDs of the interconnected switches are the same.
  3. The duplex modes of the physical interfaces on the interconnected switches are the same.
  4. The physical interface quantities of the interconnected switches are the same.
  5. The models of the optical modules used by the interconnected switches are the same.

Question 70

Which of the following networks are LANs? (Choose all that apply.)

  1. Internet
  2. Home network
  3. Office network of a company
  4. Broadband MAN