A ______ is a data communication

system spanning states, countries, or the

whole world

The information to be communicated

in a data communications system is the

_______.

________ defines how a particular

pattern to be interpreted, and what action

is to be taken based on that

interpretation.

Frequency of failure and network

recovery time after a failure are

measures of the _______of a network.

A television broadcast is an example

of _______ transmission.

Which agency developed standards

for physical connection interfaces and

electronic signaling specifications?

________ is a collection of many

separate networks

In a ________ connection, three or

more devices share a link.

Which organization has authority

over interstate and international

commerce in the communications field?

The ______ layer adds a header to the

packet coming from the upper layer that

includes the logical addresses of the

sender and receiver.

When data are transmitted from device

A to device B, the header from A's layer

4 is read by B's _______ layer.

The ______ layer is responsible for

moving frames from one hop (node) to

the next.

The _______ layer lies between the

network layer and the application layer.

The ____ created a model called the

Open Systems Interconnection, which

allows diverse systems to communicate

IPv6 has _______ -bit addresses.

. TCP/IP is a ______ hierarchical

protocol suite developed ____ the OSI

model.

_______ is a process-to-process

protocol that adds only port addresses,

checksum error control, and length

information to the data from the upper

layer.

Which of the following encoding

methods does not provide for

synchronization?

If the frequency spectrum of a signal

has a bandwidth of 500 Hz with the

highest frequency at 600 Hz, what should

be the sampling rate, according to the

Nyquist theorem?

If the baud rate for a 64-QAM signal

is 2000, what is the bit rate?

A constellation diagram shows us the

__________ of a signal element,

particularly when we are using two

carriers (one in-phase and one

quadrature).

Given an AM radio signal with a

bandwidth of 10 KHz and the highestfrequency

component at 705 KHz, what

is the frequency of the carrier signal?

How many carrier frequencies are

used in BFSK?

If the bit rate for a 16-QAM signal is

4000 bps, what is the baud rate?