4A0-100

4A0-100 practice questions, page 2 of 14, with answer review and explanations.

Question 6

Which statement accurately explains the purpose of the TCP protocol and what it provides?

  1. The primary purpose of TCP is to provide reliable communications between application services.
  2. The primary purpose of TCP is to provide unreliable communications between application services
  3. The primary purpose of TCP is to provide IP routing between application services.
  4. The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTML.

Question 7

Which of the following statements best describes ARPANET?

  1. ARPANET was an early packet switched network initially connecting 4 sites (Stanford, UC Santa Barbara, UCLA, and U of Utah).
  2. The mission of ARPANET was to connect packet switched networks and other diverse networks, making an international network of networks.
  3. ARPANET connected sites spread around the Hawaiian Islands to a central time-sharing computer on the University of Hawaii campus.
  4. ARPANET was based on the use of TCP/IP to interconnect diverse systems.

Question 8

Kahn solved the problem of interconnecting different networks using different protocols by pioneering a new protocol called TCP that was capable of:

  1. Secure transmission of information.
  2. Enforcing a constant packet size to avoid discards.
  3. Allowing remote logins.
  4. Providing host to host connectivity with global addressing.

Question 9

Which network was created to replace ARPANET?

  1. INWG
  2. ALOHANET
  3. IETF
  4. NSFNET

Question 10

Which statement best describes how the internet evolved?

  1. The internet emerged in the commercial world in the 1980’s following the US military’s adoption of TCP/IP in 1983.
  2. The internet evolved from a military to a research to a commercial based network.
  3. The internet remained primarily a research based network and was only commercially adopted in 2000 when the world wide web was conceived.
  4. Internet service providers provided the services necessary for military based networks to evolve into research and education based networks.