Computer Networking Questions.doc

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Computer Networking Questions – Set 1By SenDhil -

December 1, 2015

Dear Aspirants,

Welcome to the Professional Knowledge Section in Affairscloud.com. ere !e are pro"idin#sample $uestions in %omputer &et!or'in#. (t !ill be useful for the upcomin# IBPS SO IT

officer and SBI ssistant !anager"S#stem$ e)aminations. We ha"e also included some

important $uestions that are repeatedly as'ed in pre"ious e)ams.

%ownload %B!S Q& P%' for IT Officers

1. ()ic) of t)e following are t)e t#pes of Internal Network Cards*

*A+ eripheral %omponent (nterconnect *%(+, Wireless &et!or' %ard

*B+ (ndustry Standard Architecture *(SA+,Wireless &et!or' %ard

*%+ eripheral %omponent (nterconnect *%(+, (ndustry Standard Architecture*(SA+*D+ &one of the Abo"e

Ans!er

"C$ Perip)eral Component Interconnect "PCI$+ Industr# Standard

rc)itecture"IS$

2. networking de,ice t)at forwards data packets along networks and acts as a

central point of network is called

*A+ epeater

*B+ outer *%+ Brid#e

*D+ ub

Ans!er

"B$ -outer

. -epeater operates in w)ic) la#er of OSI model*

*A+ Application layer

*B+ resentation layer

*%+ hysical layer *D+ /ransport layer

Ans!er

"C$ P)#sical la#er

http://www.affairscloud.com/author/sendhil/

http://www.affairscloud.com/dbms-qa-for-ibps-so-it-officers-scale-i/





. ()ere does Bridge operate in OSI model*

*A+ hysical layer

*B+ Data lin' layer *%+ Both *1+and *2+

*D+ Application layer

Ans!er

"B$ %ata link la#er

5. .... uses a standard called I/// 02343

*A+ A&

*B+ WA&

*%+ A&*D+ A&

Ans!er

"C$ !N

3. ()ic) is t)e general network standard for t)e data link la#er in t)e OSI -eference

!odel*

*A+ (444 02.1

*B+ (444 02.2

*%+ (444 02.*D+ (444 02.

Ans!er

"B$ I/// 0232

6. ()ic) of t)e following I/// Standard is used for (i5'i s#stems*

*A+ 02.11*B+ 02.1

*%+ 02.2

*D+ 02.10

Ans!er

"$ 02311

. .... refers to a famil# of I/// standards dealing wit) local area network and

metropolitan area network3

*A+ 02

*B+ 00



*%+ 01

*D+ 0

Ans!er

"$ 02

7. -outers operate in w)ic) la#er of t)e OSI model*

*A+ hysical layer

*B+ Data lin' layer

*%+ &et!or' ayer *D+ All of these

Ans!er

"C$ Network 6a#er

10. communication network w)ic) is used 7# large organi8ations o,er regional+

national or glo7al area is called ...

*A+ A&

*B+ WA&

*%+ A&*D+ A&

Ans!er

"B$ (N

Computer Networking Questions – Set 2

By SenDhil -

December 2, 2015

Dear Aspirants,

Welcome to the Professional Knowledge Section in Affairscloud.com. ere !e are pro"idin#

sample $uestions in %omputer &et!or'in#. (t !ill be useful for the upcomin# IBPS SO IT










1. ()at is t)e default su7net mask for a class B network*

*A+ 126.0.0.1

*B+ 2550.0.0*%+ 255.255.0.0

*D+ 255.255.255.0

Ans!er

"C$ 299329933

2. ()at is loop7ack address*

*A+ 126.0.0.1

*B+ 255.0.0.0

*%+ 255.255.0.0*D+ 126.0.0.0

Ans!er

"$ 12:3331

. central computer surrounded 7# one or more satellite computers is called a

*A+ Bus net!or' *B+ in# net!or'

*%+ Star net!or'

*D+ &one of these

Ans!er

"C$ Star network

. networking de,ice t)at recei,es a signal on an electromagnetic or an optical

transmission medium+ amplifies t)e signal+and t)en retransmits it along t)e medium

is called

*A+ outer

*B+ ub

*%+ transmitter

*D+ epeater

Ans!er

"%$ -epeater

5. ()at is t)e default su7net mask for a class network*

*A+ 126.0.0.1

*B+ 255.0.0.0



*%+ 255.255.0.0

*D+ 255.255.255.0

Ans!er

"B$ 299333

3. ;TP stands for

*A+ 8nshielded /!isted air

*B+ 8nshielded /!isted ort

*%+ 8niformly /!isted air *D+ &one

Ans!er

"$ ;ns)ielded Twisted Pair

6. ()ic) of t)e following organi8ation defines standards for modems*

*A+ (444*B+ %%(//

*%+ B4

*D+ &one

Ans!er

"B$ CCITT

. ()ic) topolog# re<uires a )u7**A+ in#

*B+ Star *%+ Bus

*D+ &one

Ans!er

"B$ Star

7. ()ic) OSI la#er di,ides a file into segments t)at are an efficient si8e for routing*

*A+ /ransport ayer *B+ &et!or' ayer

*%+ Data lin' ayer *D+ &one

Ans!er

"$ Transport 6a#er



10. '%%I stands for

*A+ 9iber Data Distribution (nterface

*B+ 9iber Distributed Data (nterface*%+ 9i)ed Data Distribution (nterface

*D+ &one

Ans!er

"B$ 'i7er %istri7uted %ata Interface

Computer Networking Questions – Set =

By SenDhil -December , 2015

Dear Aspirants,



officer and SBI ssistant !anager"S#stem$ e)aminations. We ha"e also included someimportant $uestions that are repeatedly as'ed in pre"ious e)ams.


1. ()ic) protocol working at t)e Transport la#er pro,ides a connectionless ser,ice

7etween )osts*

*A+ 8D

*B+ A

*%+ /%:(*D+ &one

Ans!er

"$ ;%P

2. ()ic) protocol does Ping use*

*A+ 8D*B+ (%

*%+ /%:(

*D+ &one







Ans!er

"B$ IC!P

. ;%P stands for

*A+ 8ser Data#ram rotocol*B+ 8ser Data rotocol

*%+ 8nlimited Data#ram rotocol

*D+ &one

Ans!er

"$ ;ser %atagram Protocol

. ()at protocol does PPP use to identif# t)e Network 6a#er Protocol*

*A+ 8D

*B+ (%*%+ &%

*D+ &one

Ans!er

"C$ NCP

5. (it) respect to a network interface card+ t)e term 1>1 refers to

*A+ protocol speed

*B+ a fiber speed

*%+ me#abits per seconds*D+ &one

Ans!er

"C$ mega7its per seconds

3. If #ou want to locate t)e )ardware address of a local de,ice+ w)ic) protocol would

#ou use

*A+ 8D

*B+ A

*%+ &%*D+ &one

Ans!er

"B$ -P



6. ?? is primaril# used for mapping )ost names and email destinations to IP address

*A+ /%

*B+ D&S*%+ &%

*D+ &one

Ans!er

"B$ %NS

. ()ic) of t)e following TCP>IP protocol is used for transferring electronic mail

messages from one mac)ine to anot)er*

*A+ /%

*B+ S/*%+ &%

*D+ &one

Ans!er

"B$ S!TP

7. ..... is t)e continuous a7ilit# to send and recei,e data 7etween interconnected

networks3

*A+ 9/

*B+ S/*%+ /&S

*D+ &et!or' (nteroperability

Ans!er

"%$ Network Interopera7ilit#

10. ()at is t)e default su7net mask for a class C network*

*A+ 126.0.0.1

*B+ 2550.0.0

*%+ 255.255.0.0

*D+ 255.255.255.0

Ans!er

"%$ 299329932993

Computer Networking Questions – Set @



By SenDhil -

December , 2015

Dear Aspirants,





1. ()ic) la#er is t)e closest to transmission medium*

*A+ /ransport layer

*B+ hysical layer

*%+ &et!or' layer

*D+ Datalin' layer

Ans!er

"B$ P)#sical la#er

2. ()ic) protocol is used to eliminate loops*

*A+ /%:(*B+ Spannin# /ree rotocol

*%+ S/

*D+ &one

Ans!er

"B$ Spanning Tree Protocol

. ()at kind of sc)eme is t)e )ttp protocol*

*A+ #et:put

*B+ re$uest:response*%+ store:for!ard

*D+ $ueuin#

Ans!er

"B$ re<uest>response

. ()ic) la#er of OSI determines t)e interface of t)e s#stem wit) t)e user*

*A+ Session layer

*B+ Application layer







*%+ &et!or' layer

*D+ Datalin' layer

Ans!er

"B$ pplication la#er

5. ()ic) of t)e following is an eAample of client5ser,er model*

*A+ 9/

*B+ D&S

*%+ /4&4/*D+ All of the abo"e

Ans!er

"%$ ll of t)e a7o,e

3. t w)ic) la#er TCP>IP defines two protocols Transmission Control Protocol"TCP$

and ;ser %atagram Protocol";%P$*

*A+ /ransport layer

*B+ Application layer

*%+ &et!or' layer *D+ Datalin' layer

Ans!er

"$ Transport la#er

6. w)ic) of t)e following uses t)e greatest num7er of la#ers in t)e OSI model*

*A+ Brid#e*B+ epeater

*%+ outer

*D+ ;ate!ay

Ans!er

"%$ atewa#

. ()ic) Protocol use link state routing**A+ <S9

*B+ (;*%+ (

*D+ &one

Ans!er



"$ OSP'

7. ()ic) PPP Protocol pro,ides aut)entication and d#namic addressing*

*A+ %*B+ &%

*%+ (*D+ &one

Ans!er

"$ 6CP

10. ()ic) of t)e following la#er is t)e network support la#er*

*A+ hysical layer

*B+ Data lin' layer

*%+ &et!or' layer

*D+ All of the abo"e

Ans!er

"%$ ll of t)e a7o,e


By SenDhil -

December , 2015

Dear Aspirants,





1. Switc) is a de,ice of??3 6a#er of OSI model*

*A+ hysical

*B+ Datalin' *%+ Application

*D+ Session







Ans!er

"B$ %atalink

2. Packets are found at w)ic) la#er*

*A+ hysical*B+ Datalin'

*%+ Application

*D+ &et!or'

Ans!er

"%$ Network

. T)e IP address 1=933132: 7elongs to address class*

*A+ %lass A

*B+ %lass B*%+ %lass %

*D+ &one

Ans!er

"B$ Class B

. n )ttp re<uest contains )ow man# parts*

*A+ 1

*B+ 2

*%+ *D+

Ans!er

"C$ =

5. de,ice w)ic) di,ides t)e incoming signal into low fre<uencies to send to ,oice

de,ices+ and )ig) fre<uencies for data to t)e computer3

*A+ multicast router

*B+ interface

*%+ splitter *D+ &one

Ans!er

"C$ splitter



3. ()ic) of t)e following function is performed 7# TCP*

*A+ 9lo! %ontrol

*B+ 4rror chec'in#*%+ Subnettin#


Ans!er

"%$ ll of t)e a7o,e

6. ()ic) la#er esta7lis)es+ maintains & s#nc)roni8es t)e interaction 7etween

communicating de,ices*

*A+ hysical

*B+ Datalin' *%+ Application

*D+ Session

Ans!er

"%$ Session

. ()ic) of t)e following is a timer used for collision a,oidance*

*A+ &A=

*B+ D%9

*%+ %9*D+ &one

Ans!er

"$ ND

7. T)e access met)od used in %C' !C su75la#er is

*A+ %SA:%D*B+ %SA:%A

*%+ ollin#

*D+ &one

Ans!er

"B$ CS!>C

10. T)e access met)od used in PC' !C su75la#er is

*A+ %SA:%D

*B+ %SA:%A

*%+ ollin#*D+ &one



Ans!er

"C$ Polling


By SenDhil -

December , 2015

Dear Aspirants,





1. Peer5to5Peer "P2P$ is a ??33communications model

*A+%entrali>ed

*B+decentrali>ed*%+client:ser"er

*D+&one

Ans!er

"B$decentrali8ed

2. /t)ernet+ token ring and token 7us are t#pes of???

*A+ A&

*B+ WA&

*%+ A&*D+ &one

Ans!er

"C$ 6N

. ()at is t)e name of network topolog# in w)ic) t)ere are 7idirectional links 7etween

eac) possi7le node*

*A+ Star







*B+ esh

*%+ in#

*D+ &one

Ans!er

"B$ !es)

. 'i7er %istri7uted %ata Interface "'%%I$ is an eAample of w)ic) topolog#*

*A+ Star

*B+ esh*%+ in#

*D+ &one

Ans!er

"C$ -ing

5. ()ic) TCP>IP protocol is used for file transfer wit) minimal capa7ilit# and

minimal o,er)ead*

*A+ S;

*B+ /9/*%+ S8

*D+ &one

Ans!er

"B$ T'TP

3. n IPD4 address is?? 7its long

*A+ 3

*B+ 12

*%+ 253*D+ 512

Ans!er

"B$ 120

6. ddresses in Class % are used for?33

*A+ 8nicast %ommunication*B+ ulticast %ommunication

*%+ Both *A+ ? *B+

*D+ &one

Ans!er



"B$ !ulticast Communication

. n IPD@ address is?337its long

*A+ 3*B+ 12

*%+ 253*D+ 2

Ans!er

"%$ =2

7. Eow man# classes are t)ere in IPD@ addresses*

*A+ 6

*B+

*%+ 5

*D+ 3

Ans!er

"C$ 9

10. ()at are t)e t)ree t#pes of addresses in IPD4*

*A+ %lass A, %lass B, %lass %*B+ 8nicast, anycast, multicast

*%+ 8nicast, dualcast, multicast

*D+ &one

Ans!er

"B$ ;nicast+ an#cast+ multicast

Computer Networking Questions – Set :

By SenDhil -

December 3, 2015

Dear Aspirants,









1. I/// 023= standard used w)at met)od as t)e media access met)od**A+ %SA:%D

*B+ %SA:%A

*%+ %DA*D+ 9DA

Ans!er

"$ CS!>C%

2. (/P stands for

*A+ Wireless 4$ui"alent ri"acy*B+ Wired 4$ui"alent ri"acy

*%+ Wired 4$ui"alent rotocol

*D+ Wireless 4$ui"alent rotocol

Ans!er

"$ (ireless /<ui,alent Pri,ac#

. ()at is t)e ke# element of a Protocol*

*A+ Synta)

*B+ Semantics*%+ /imin#*D+ All of the abo"e

Ans!er

"%$ ll of t)e a7o,e

. iga7it /t)ernet )as a data rate of

*A+ 100 bps

*B+ 1000 bps

*%+ 500 bps*D+ &one

Ans!er

"B$ 1 !7ps





5. T)e datalink la#er of /t)ernet consists of

*A+ % sublayer

*B+ Ac sublayer *%+ Both *A+ ? *B+

*D+ <nly *B+

Ans!er

"C$ Bot) "$ & "B$

3. ()at is t)e minimum & maAimum frame lengt) for 1 !7ps /t)ernet*

*A+ 2 bytes, 3 bytes

*B+ 3 bytes, 12 bytes

*%+ 3 bytes, 151 bytes*D+ 2 bytes, 151 bytes

Ans!er

"C$ 4@ 7#tes+ 1910 7#tes

6. SN!P stands for

*A+ Simple &et!or' ana#ement rotocol*B+ Sample &et!or' ana#ement rotocol

*%+ Structured &et!or' ana#ement rotocol

*D+ Security &et!or' ana#ement rotocol

Ans!er

"$ Simple Network !anagement Protocol

. ()ic) of t)e following refers to a group of standards t)at are still 7eing de,eloped

as a part of o,erall I/// 02311 (6N support*

*A+ 02.11i*B+ 02.11)

*%+ Both *A+ ? *B+

*D+ &one of the abo"e

Ans!er

"C$ Bot) "$ & "B$

7. ()ic) of t)e following is a securit# protocol designed to pro,ide a wireless 6N

wit) 7etter securit# and pri,ac#*

*A+ W4

*B+ S&



*%+ WA

*D+ DA

Ans!er

"C$ (P

10. ()ic) of t)e following is a timer used for Collision ,oidance "C$*

*A+ %9

*B+ A%

*%+ &A=*D+ &one of the abo"e

Ans!er

"C$ ND


By SenDhil -

December 6, 2015

%ear spirants+





1. %ommunication in a ybrid 9iber %oa)ial *9%+ cable /= net!or' can be

*A+ unidirectional

*B+ bidirectional*%+ multidirectional


Ans!er

"B$ 7idirectional







2. %ircuit s!itchin# uses@..

*A+ Space Di"ision S!itch

*B+ /ime Di"ision S!itch*%+ 4ither *A+ or *B+


Ans!er

"C$ /it)er "$ or "B$

. ADS stands for *A+ Asynchronous Di#ital Subscriber ine

*B+ Asymmetric Di#ital Subscriber ine

*%+ Ad"anced Di#ital Subscriber ine*D+ Asynchronous Di#ital Security ine

Ans!er

"B$ s#mmetric %igital Su7scri7er 6ine

. 4ncryption and decryption of data are the responsibility of @@. layer

*A+ hysical*B+ Datalin'

*%+ /ransport

*D+ resentation

Ans!er

"%$ Presentation

5. What is the main function of transport layer in the <S( model

*A+ peer to peer messa#e deli"ery

*B+ node to node messa#e deli"ery*%+ process to process messa#e deli"ery


Ans!er

"C$ process to process message deli,er#

3. <S( stands for@..*A+ <pen Systems (nterconnection

*B+ <ri#inal Systems (nterconnection

*%+ <ri#inal Security (nterconnection

*D+ <pen Soft!are (nterconnection



Ans!er

"$ Open S#stems Interconnection

6. (n <S( model, as the data pac'et mo"es from the upper to the lo!er layers, headers are

.*A+ added

*B+ remo"ed

*%+ deleted*D+ edited

Ans!er

"$ added

. Which of the follo!in# layer is the 8ser Support layer

*A+ Session layer *B+ resentation layer

*%+ Application layer


Ans!er

"%$ ll of t)e a7o,e

7. 4rror detection at the data lin' layer is achie"ed by@..

*A+ ammin# code

*B+ %yclic edundancy %ode*%+ Bit stuffin#*D+ synchroni>ation

Ans!er

"B$ C#clic -edundanc# Code

10. ort address in /%:( is @.. bits lon#*A+ 13

*B+ 2

*%+ 3*D+ 12

Ans!er

"$ 14



Computer Networking Questions – Set F

By SenDhil -December , 2015

%ear spirants+





1. n addressing met)od in w)ic) t)e IP address space is not di,ided into classes*

*A+ %lassful addressin#

*B+ %lassless addressin#

*%+ %lassless (D *D+ &one of the abo"e

Ans!er

"B$ Classless addressing

2. T)e num7er of differences 7etween t)e corresponding 7its in a two data words isknown as?? distance

*A+ annin#

*B+ ammin#

*%+ uffman*D+ &one of the abo"e

Ans!er

"B$ Eamming

. n ddress -esolution Protocol "-P$ re<uest is*A+ unicast*B+ anycast

*%+ broadcast


Ans!er







"C$ 7roadcast

. T)e splitting of a message into multiple packets at transport la#er is known as?3

*A+ 9ra#mentation*B+ Se#mentation

*%+ Synchroni>ation*D+ &one of the abo"e

Ans!er

"B$ Segmentation

5. --P stands for??

*A+ e"erse Address esolution rotocol

*B+ e"erse Address outin# rotocol

*%+ e"erse Address efle)i"e rotocol

*D+ esource Address esolution rotocol

Ans!er

"$ -e,erse ddress -esolution Protocol

3. T)e loss of signalGs energ# due to t)e resistance of medium is called??

*A+ 9ra#mentation*B+ Attenuation

*%+ Synchroni>ation


Ans!er

"B$ ttenuation

6. In (ireless 6NGs+ a time inter,al 7etween two frames to control access to t)e

c)annel is called?33

*A+ (nterframe space*B+ (nterlea"in#

*%+ (nterior routin#


Ans!er

"$ Interframe space

. n arra# of switc)es t)at are used to reduce t)e num7er of cross points is called?33

*A+ sin#lesta#e s!itch

*B+ dualsta#e s!itch



*%+ multista#e s!itch


Ans!er

"C$ multistage switc)

7. n application protocol of TCP>IP t)at allows remote login is known as??3

*A+ &%

*B+ &=/

*%+ &A=*D+ &one of the abo"e

Ans!er

"B$ NDT

10. T'TP stands for??

*A+ /ri"ial 9ile /ransfer rotocol*B+ /emporary 9ile /ransfer rotocol

*%+ /run' 9ile /ransfer rotocol

*D+ /ransparent 9ile /ransfer rotocol

Ans!er

"$ Tri,ial 'ile Transfer Protocol


By SenDhil -

December 10, 2015

%ear spirants+




1. T)e 7uilding 7lock of a (ireless 6N as defined 7# I/// 02311 standard*

*A+ BSS





*B+ 4SS

*%+ Both *A+ ? *B+


Ans!er

"$ BSS

2. protocol t)at pro,ides configuration information from a ta7le is called?33

*A+ B;

*B+ B<</*%+ 9/


Ans!er

"B$ BOOTP

. CI%- stands for

*A+ %ode (nter Domain outin#

*B+ %ode (nter Di"ision outin#

*%+ %lassless (nter Domain outin#*D+ %lassful (nter Domain outin#

Ans!er

"C$ Classless Inter %omain -outing

. In PPP+ a t)ree5wa# )ands)aking protocol used for aut)entication is known as??

*A+ %A*B+ B<</

*%+ 9/


Ans!er

"$ CEP

5. tec)ni<ue in w)ic) a protocol used for address resolution is called??*A+ dynamic routin#

*B+ dynamic mappin#*%+ e)terior routin#


Ans!er



"B$ d#namic mapping

3. ()ic) of t)e following con,erts user friendl# names to IP addresses*

*A+ Domain &ame Space*B+ Domain &ame System

*%+ D%*D+ &one of the abo"e

Ans!er

"B$ %omain Name S#stem

6. protocol in w)ic) t)e sender sends one frame and stops until it recei,es

confirmation from t)e recei,er*

*A+ Stop and Wait AC

*B+ Store and for!ard s!itch

*%+ Stop and Wait rotocol*D+ &one of the abo"e

Ans!er

"C$ Stop and (ait Protocol

. ()ic) of t)e following is an application ser,ice for retrie,ing a we7 document*

*A+ /

*B+ //

*%+ 9/


Ans!er

"B$ ETTP

7. Hou are in t)e process of anal#8ing a pro7lem t)at re<uires #ou to collect and store

TCP>IP Packets3()ic) of t)e following utilities is 7est suited for t)is purpose*

*A+ erformance onitor

*B+ &et!or' onitor

*%+ &4/S/A/

*D+ &B/S/A/

Ans!er

"B$ Network !onitor

10. ()ic) of t)e following protocol pro,ides confidentialit# and aut)entication for an e5

mail*



*A+ B;

*B+ B<</

*%+ ;*D+ &one of the abo"e

Ans!er

"C$ PP

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Computer Networking Questions.doc