In order to increase the data rate we should:

Select one:

a. decrease both number of levels and baud rate

b. increase the number of levels and baud rate

c. decrease the number of levels and increase baud rate

d. increase the number of levels only.

The transport layer in TCP/IP provides:

Select one:

a. translation

b. reliability

c. encryption

d. none of the above

Radio waves are _________

Select one:

a. omnidirectional

b. line of sight

c. unidirectional

d. bidirectional

WAN is a

Select one:

a. run within a closed geographical area

b. normally created and run by communication companies

c. None of the above

d. privately owned by the organization that uses it