31. A software that allows a personal computer to pretend it as a terminal is

A. auto-dialing
B. bulletin board
C. modem
D. terminal emulation
E. None of the above

32. What is the name of the network topology in which there are bi-directional links between each possible node?

A. Ring
B. Star
C. Tree
D. Mesh
E. None of the above

33. What is the main purpose of a data link content monitor?

A. to detect problems in protocols
B. to determine the type of transmission used in a data link
C. to determine the type of switching used in a data link.
D. to determine the flow of data

34. Synchronous protocols

A. transmit characters one at a time
B. allow faster transmission than asynchronous protocols do
C. are generally used by personal computers
D. are more reliable
E. None of the above

35. To set up a bulletin board system you need

A. a smart modem with auto-answer capabilities
B. a telephone line
C. a personal computer
D. All of the above
E. None of the above