ESAT Forouzan - Chapter 1: Introduction Flashcards
The __________ is the physical path over which a message travels
a. Protocol
b. Medium
c. Signal
d. All of the above
b. Medium
The information to be communicated in a data system is the ___________.
a. Medium
b. Protocol
c. Message
d. Transmission
c. Message
Frequency of failure and network recovery time after a failure are measures of the __________ of a network.
a. Performance
b. Reliability
c. Security
d. Feasibility
b. Reliability
An unauthorized user is a network __________ issue.
a. Performance
b. Reliability
c. Security
d. All of the above
c. Security
Which topology requires a central controller or hub?
a. Mesh
b. Star
c. Bus
d. Ring
b. Star
Which topology requires a multipoint connection?
a. Mesh
b. Star
c. Bus
d. Ring
c. Bus
Communication between a computer and a keyboard involves _________________ transmission.
a. Simplex
b. Half-duplex
c. Full-duplex
d. Automatic
a. Simplex
In a network with 25 computers, which topology would require the most extensive cabling?
a. Mesh
b. Star
c. Bus
d. Ring
a. Mesh
A television broadcast is an example of ______________ transmission.
a. Simplex
b. Half-duplex
c. Full-duplex
d. Automatic
a. Simplex
A ______________ connection provides a dedicated link between two devices.
a. Point-to-point
b. Multipoint
c. Primary
d. Secondary
a. Point-to-point
In a _______________ connection, more than two devices can share a single link.
a. Point-to-point
b. Multipoint
c. Primary
d. Secondary
b. Multipoint
In _______________ transmission, the channel capacity is shared by both communicating devices at all times.
a. Simplex
b. Half-duplex
c. Full-duplex
d. Half-simplex
c. Full-duplex
A cable break in a _____________ topology stops all transmission.
a. Mesh
b. Bus
c. Star
d. Primary
b. Bus
Which organization has authority over interstate and international commerce in the communications field?
a. ITU-T
b. IEEE
c. FCC
d. ISO
c. FCC
