1. Identify the correct statement(s) regarding dedicated circuits.

a. dedicated circuits provide point-to-point 24/7 access between communicating points

b. the availability of a dedicated circuit to the subscriber is very high

c. dedicated circuits are costly and cannot be easily expanded to include additional nodes

d. all statements are correct

2.Virtual circuits are commonly used on all-analog networks today.(T/F)

True

False

3. Select the correct statement(s) regarding connectionless and connection-oriented networks. a. packet networks only support connectionless circuits b. a connection-oriented circuit will not guarantee the delivery of packets in sequential order c. packets must contain source and destination addresses in a connectionless network d. all statements are correct

4. An acoustic wave is considered part of the electromagnetic spectrum. (i.e., acoustic signals are the same as electromagnetic signals).(T/F)

TRUE

FALSE

5.Given the following parameters, determine the correct sinusoidal equation for a sine wave: f=160kHz, A=1.5v, (phase angle)=+/2 radians. a. 1.5sin(2160t /2) b. 1.5sin(2160E3Hz*t + 90o) c. 160sin(23t + /2) d. 160sin(21.5t 90o)