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Computer Networks - 4

Description: This is the fourth part of a series of tests on computer networks
Number of Questions: 25
Created by:
Tags: Computer Networks Data Communication and Computer Networks Cables Hub Switch Router Modem Data Communication & Networks
Attempted 0/25 Correct 0 Score 0

A process is a

  1. software entity

  2. hardware entity

  3. firmware entity

  4. middleware entity


Correct Option: A

I/O chip is a

  1. software entity

  2. hardware entity

  3. firmware entity

  4. middleware entity


Correct Option: B

The active elements in each layer are called

  1. entities

  2. objects

  3. classes

  4. none


Correct Option: A

The entities in layer n implement a service used by layer n + 1, layer n is called

  1. service provider

  2. service user

  3. servicer

  4. none of these


Correct Option: A

The entities in layer n implement a service used by layer n + 1, layer n + 1 is called

  1. service provider

  2. service user

  3. servicer

  4. none


Correct Option: B

The services are available at

  1. MAP

  2. WAP

  3. SAP

  4. LAP


Correct Option: C

SAP means

  1. Service Access Point

  2. Service Address Point

  3. Service Access Port

  4. Service Address Port


Correct Option: A

IDU means

  1. Inheritance Data Unit

  2. Interface Data Unit

  3. Integrated Data Unit

  4. None of these


Correct Option: B

PDU means

  1. Parallel Data Unit

  2. Positve Data Unit

  3. Poly Data Unit

  4. Protocol Data Unit


Correct Option: D

SDU means

  1. Service Data Unit

  2. Several Data Unit

  3. Seperate Data Unit

  4. None of these


Correct Option: A

The connectionless service is like

  1. postal system

  2. telephone system

  3. computer system

  4. none of these


Correct Option: A

The connection-oriented service is like

  1. postal system

  2. telephone system

  3. computer system

  4. none of these


Correct Option: B

In connectionless service, message contains ____ destination address.

  1. quarter

  2. half

  3. full

  4. two


Correct Option: C

Reliable services never ____ data

  1. accept

  2. reject

  3. gain

  4. lose


Correct Option: D

The message sequence is a reliable ____ service.

  1. connection oriented

  2. connectionless

  3. both (1) and (2)

  4. none of these


Correct Option: A

In message sequence, message boundaries are

  1. wasted

  2. not wasted

  3. preserved

  4. not preserved


Correct Option: C

Byte stream is a ____ connection oriented service.

  1. unreliable

  2. reliable

  3. good

  4. none of these


Correct Option: B

In byte stream, there is ____ message boundary.

  1. a

  2. two

  3. no

  4. none of these


Correct Option: C

Datagram is ____ connectionless service.

  1. unreliable

  2. reliable

  3. bad

  4. none of these


Correct Option: A

The sequence of pages is an example for

  1. message stream

  2. byte stream

  3. connectionless service

  4. unreliable service


Correct Option: A

The remote login is an example for

  1. message stream

  2. byte stream

  3. connectionless service

  4. unreliable service


Correct Option: B

An electronic junk mail is an example for

  1. message stream

  2. byte stream

  3. connection-oriented service

  4. datagram


Correct Option: D

The digitized voice is an example for

  1. message stream

  2. byte stream

  3. connectionless service

  4. unreliable service


Correct Option: D

The registered mail is an example for

  1. message stream

  2. byte stream

  3. connection oriented service

  4. none of these


Correct Option: B

A database query is an example for

  1. message stream

  2. byte stream

  3. datagram

  4. request-reply service


Correct Option: D
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