EST-DIGI

______ refers to the physical or logical

arrangement of a network.

• Topology

• Mode of operation

• Data flow

• None of the above

A ______ is a data communication

system spanning states, countries, or the

whole world

• WAN

• LAN

• MAN

• PAM

The information to be communicated

in a data communications system is the

_______.

• Medium

• Protocol

• Message

• Transmission

________ defines how a particular

pattern to be interpreted, and what action

is to be taken based on that

interpretation.

•  Semantics

• Syntax

• Timing

• Accuracy

Frequency of failure and network

recovery time after a failure are

measures of the _______of a network.

• Performance

• Security

• Reliability

• Feasibility

A television broadcast is an example

of _______ transmission.

• half-duplex

• simplex

• full-duplex

• all of the choices

Which agency developed standards

for physical connection interfaces and

electronic signaling specifications?

• ISO

• ITU-T

• ANSI

• EIA

________ is a collection of many

separate networks

• A WAN

• An internet

• A LAN

• A MAN

In a ________ connection, three or

more devices share a link.

• point-to-point

• multi-point

• both a and b

• none of the above

Which organization has authority

over interstate and international

commerce in the communications field?

• FCC

• IEEE

• ITU-T

• NTC