1. In a _______ connection, more than two devices can share a single link.
(a) Point-to-point
(b) Primary
(c) Multi-point
(d) Secondary

2.  Communication between a computer and a keyboard involves ______________
transmission
(a) Full-duplex
(b) Half-duplex
(c) Simplex
(d) None of these

3. In a network with 25 computers, which topology would require the most
extensive cabling?
(a) Star
(b) Mesh
(c) Bus
(d) None of these

4. Which topology requires a central controller or hub?
a. Star
b. Mesh
c. Bus
d. Ring

5. The _______ is the physical path over which a message travels.
a. Protocol
b. Medium
c. Signal
d. All of the above

6. Which organization has authority over interstate and international commerce in the communications field?
a. ITU-T
b. IEEE
c. ISO
d. FCC

7. The information to be communicated in a data communications system is the ________
a. Medium
b. Protocol
c. Transmission
d. Message

8. Frequency of failure and network recovery time after a failure are measures of the
_______ of a network.
a. Performance
b. Security
c. Reliability
d. Feasibility

9. In _______ transmission, the channel capacity is shared by both communicating devices at all times.
a. Full-duplex
b. Simplex
c. Half-duplex
d. Half-Simplex

10. An unauthorized user is a network _______ issue.
a. Performance
b. Reliability
c. Security
d. All of the above