Question # 1

An example of digital rather than analog communication is

Choose an answer

DDD

DDS

DDT

WATS

Data communications monitors available on the software marked include.

Choose an answer

ENVIRON/1

TOTAL

BPL

Telnet

An example of an analog communication method is.

Choose an answer

Laser beam

Micro wave

Voice grade telephone line

All of the above

the loss in signal power as light travels donw the fiber is called.

Choose an answer

Attenuation

Progragation

scathering

Interruption

The transmission signal coding method of TI carrier is called.

Choose an answer

Bipolar

NRZ

Manchester

Binary

Terminal are required for

Choose an answer

Real time batch processing and time sharing.

Real time time sharing and distributed message processing.

Real time distributed processing and manager inuiry

Real time time sharing and message switching

A examples of medium speed switched communications service is

Choose an answer

Series 1000

Data phone 50

DDD

All of above

The interactive transmission of data with in a time sharing system may be best suited to.

Choose an answer

Simplex lines

Half duplex lines

full duplex lines

Biflex lines

In OSI network architecture the routing is performed by

Choose an answer

Network layer

Data link layer

Transport layer

Session layer

Avalanche photodiode receivers can detect bits of transmitted data by receiving.

Choose an answer

100 photons

200 photons

2000 photons

300 photons

Which of the following performs modulation and demodulation?

Choose an answer

Fiber optics

Satellite

Coaxial cable

Modern

The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as.

Choose an answer

Modulation

Demodulation

Synchronizing

Digitising

In OSI network architecture the dialogue control and toke management are responsibility of

Choose an answer

Session layer

Network layer

Transport layer

None

Which of the following does ot allow multiple uses or devices to share one communication line.

Choose an answer

Double plexer

Multiple plexrr

Concentrator

Controller

Which of the following is considered a broad band communication channel.

Choose an answer

Coaxial cable

Fiber optics cable

Microwave circuits

All of above

What is the main difference between DDCMP and SDLC.

Choose an answer

DDCMP does not need spectral hardware to final the beginning of a message

DDCMP has a message header

SDLC has a IP address

SDLC does not use CRC

Which of the following is not a transmission medium.

Choose an answer

Telephone lines

Coaxial cables

Modem

Micro wave systems

How many OSI layers are covered in the X-25 standart.

Choose an answer

Two

Three

Seven

Six

A data terminal serves as an

Choose an answer

Effector

Sensor

Both a and b

Neither a nor b

A protocol is a set of rules governing a time sequence of events that must take place.

Choose an answer

Between peers

Between an interface

Between moderns

Across an interface

More Classes

Other Links

PPSC Computer Science Chapter 12 Computer Networking Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer