Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

OSI stands for?(a) Open Site Interconnection(b) Open System Interdependence(c) Open System Interconnection(d) Open Site InterdependenceThe question was asked by my college director while I was bunking the class.I would like to ask this question from Internetworking topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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Correct OPTION is (c) OPEN SYSTEM Interconnection

Explanation: OSI is open system interconnection. It is a framework for DEFINING standards for linking heterogeneous computers in a packet switched network.

2.

Connecting two or more networks to form a single network is called :(a) Internetworking(b) Intranetworking(c) Interconnecting(d) IntraconnectivityI got this question in final exam.This question is from Internetworking in portion Data Communications and Computer Networks of Computer Fundamentals

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The correct option is (a) Internetworking

For EXPLANATION: Connecting two or more networks to FORM a single network is CALLED internetworking and the resultant network is called INTERNETWORK.

3.

____________ operate at bottom two layers of the OSI model.(a) Bridges(b) Switches(c) Models(d) ModulesThis question was posed to me in an online interview.I'd like to ask this question from Internetworking in division Data Communications and Computer Networks of Computer Fundamentals

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Right answer is (a) Bridges

Easy explanation: Bridges operate at the bottom two LAYERS of the OSI MODEL. It connects networks that use the same COMMUNICATION protocols above data-link layer.

4.

A topology that involves Tokens.(a) Star(b) Ring(c) Bus(d) Daisy ChainingThe question was asked in examination.The above asked question is from Internetworking topic in chapter Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT CHOICE is (b) Ring

Easy explanation: Ring TOPOLOGY involves sending and RECEIVING of data with the help of tokens. Ring STARTED out as a simple peer-to-peer LAN topology.
5.

Components that operate at the network layer of the OSI model.(a) Switches(b) Servers(c) Routers(d) GatewaysI had been asked this question in my homework.My question is from Internetworking in chapter Data Communications and Computer Networks of Computer Fundamentals

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Correct OPTION is (c) Routers

To elaborate: They are referred to as the routers. They are used for interconnecting those networks that USE the same high-level PROTOCOLS above network layer.

6.

WANs that need to interconnect a very large number of sites.(a) bus(b) two-tiered(c) three-tiered(d) ringThis question was addressed to me by my school principal while I was bunking the class.I need to ask this question from Internetworking topic in portion Data Communications and Computer Networks of Computer Fundamentals

Answer» RIGHT CHOICE is (c) three-tiered

For explanation: Wide Area Networks that need to interconnect a very large number of sites, or are built USING smaller routers that can support only a few serial connections, MAY find the two-tiered architecture insufficiently scalable.
7.

Atopology is a modified version of the basic star topology.(a) network(b) two-tiered(c) bus(d) ringI got this question by my school principal while I was bunking the class.This interesting question is from Internetworking topic in section Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT OPTION is (b) two-tiered

To explain: A two-tiered topology is a modified VERSION of the basic star topology. Rather than single CONCENTRATOR routers, two or more routers are used.
8.

Components used for interconnecting dissimilar networks that use different communication protocols.(a) Switches(b) Gateways(c) Routers(d) BridgesI have been asked this question in exam.The origin of the question is Internetworking topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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The correct ANSWER is (b) Gateways

Best explanation: Gateways are used for this purpose. Gateways interconnect dissimilar NETWORKS, PROTOCOL conversion is performed by them.

9.

Configuration where many independent computer systems are connected.(a) Complex(b) Distributed(c) Cloud(d) IncrementalThis question was posed to me during a job interview.The origin of the question is Internetworking in portion Data Communications and Computer Networks of Computer Fundamentals

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The correct ANSWER is (b) Distributed

Easiest explanation: Distributed configuration has many systems CONNECTED, and MESSAGES, PROGRAMS, etc are transmitted between cooperating computer systems.

10.

A piece of information which is sent along with the data to the source computer.(a) data(b) module(c) token(d) elementThis question was posed to me in exam.My doubt stems from Network Topologies topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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The correct answer is (c) token

Easy EXPLANATION: Token is the information that is SENT to the source computer along with the DATA. This token is then passed to the next NODE.

11.

Partial mesh is a highly flexible topology that can take a variety of very different configurations.(a) True(b) FalseThe question was posed to me during an interview.This question is from Internetworking in chapter Data Communications and Computer Networks of Computer Fundamentals

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The correct answer is (a) True

Explanation: The STATEMENT is true. Partial mesh is a highly flexible topology that can take a variety of very different configurations. The ROUTERS are tightly coupled than the basic topologies. But they are not fully INTERCONNECTED, as would be the CASE in a fully MESHED network.

12.

A serially connected system of all the hubs of networks.(a) Bus(b) Ring(c) Daisy chains(d) StarI have been asked this question by my school teacher while I was bunking the class.My doubt is from Network Topologies in division Data Communications and Computer Networks of Computer Fundamentals

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Right CHOICE is (C) DAISY chains

Easy explanation: The correct option is Daisy chain. This simple approach USES ports on existing hubs for interconnecting the hubs.

13.

A ____________WAN can be developed using leased private lines or any other transmission facility(a) Hybrids(b) peer-to-peer(c) Two-tiered(d) Three-tieredThis question was addressed to me in final exam.I would like to ask this question from Network Topologies topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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The CORRECT answer is (b) peer-to-peer

For explanation I would say: A peer-to-peer WAN topology is a relatively simple way of interconnecting a small number of SITES. It has the least-cost solution for WANs that CONTAIN a small number of internetworked LOCATIONS.

14.

A topology that involves Tokens.(a) Star(b) Ring(c) Bus(d) Daisy ChainingI have been asked this question in class test.The query is from Network Topologies in portion Data Communications and Computer Networks of Computer Fundamentals

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15.

The participating computers in a network are referred to as:(a) Clients(b) Servers(c) Nodes(d) CPUsI got this question in my homework.My doubt stems from Network Topologies topic in portion Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT answer is (c) Nodes

To explain I would SAY: They are REFERRED to as the nodes. There are several topologies designed for arrangements of these nodes like BUS, star, ETC.
16.

A network comprising o multiple topologies.(a) Complex(b) Hybrid(c) Bus(d) StarThis question was addressed to me by my school teacher while I was bunking the class.Asked question is from Network Topologies in portion Data Communications and Computer Networks of Computer Fundamentals

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Right CHOICE is (B) HYBRID

For explanation I WOULD SAY: A hybrid network consists of multiple topologies. It can comprise a ring, a star and other topologies. We call this arrangement as a hybrid network.

17.

A term that refers to the way in which the nodes of a network are linked together.(a) network(b) topology(c) connection(d) interconnectivityI had been asked this question by my school principal while I was bunking the class.My doubt is from Network Topologies topic in portion Data Communications and Computer Networks of Computer Fundamentals

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Correct option is (b) TOPOLOGY

Easy EXPLANATION: Topology is a term that refers to the way in which the NODES are connected. There are 4 major topology NETWORKS.

18.

_____ LAN topology describes the possible connections between pairs of networked end-points that can communicate.(a) Complex(b) Physical(c) Logical(d) IncrementalThis question was addressed to me in an interview for internship.My enquiry is from Network Topologies topic in portion Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT choice is (C) Logical

Explanation: A logical LAN topology describes the POSSIBLE connections.LAN stands for Local AREA Network.
19.

Bus is a type of topology.(a) True(b) FalseI got this question in class test.The above asked question is from Network Topologies topic in chapter Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT OPTION is (a) True

To explain: The STATEMENT is true. Bus TOPOLOGY is an arrangement where all nodes are interconnected using a single-cable.
20.

A system in which two channels are dedicated to transfer data.(a) TV(b) Cable(c) Modem(d) Cable modemThe question was asked during an interview for a job.I want to ask this question from Multiplexing in portion Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT CHOICE is (d) Cable modem

The BEST explanation: A cable modem has TWO dedicated channels from cable TV provider dedicated to DATA transfer. One in each direction.
21.

A topology that is responsible for describing the geometric arrangement of components that make up the LAN.(a) Complex(b) Physical(c) Logical(d) IncrementalThe question was posed to me in an online quiz.My query is from Network Topologies topic in section Data Communications and Computer Networks of Computer Fundamentals

Answer» RIGHT option is (b) PHYSICAL

Easy explanation: It is referred to as a physical LAN topology. LAN STANDS for Local Area NETWORK.
22.

In this technique, there is a link between subscriber and network and a local loop.(a) SSDL(b) DSDL(c) ASDL(d) TSDLThe question was posed to me in an internship interview.The doubt is from Multiplexing topic in section Data Communications and Computer Networks of Computer Fundamentals

Answer» RIGHT option is (c) ASDL

Explanation: In ASDL, there is a link between the subscriber and the NETWORK. It uses CURRENTLY installed twisted pair CABLE.
23.

A technique that allocates time slots dynamically.(a) TDM(b) WDM(c) Dynamic TDM(d) Statistical TDMThis question was posed to me in examination.The query is from Multiplexing in portion Data Communications and Computer Networks of Computer Fundamentals

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The CORRECT choice is (d) Statistical TDM

The best explanation: Statistical TDM ASSIGNS TIME slots dynamically. They are allocated based on demand. Multiplexer scans input lines and collects data until the frame is FULL.

24.

Many time slots are wasted in __________(a) TDM(b) Synchronous TDM(c) Asynchronous TDM(d) FDMThis question was posed to me during an interview.The origin of the question is Multiplexing topic in section Data Communications and Computer Networks of Computer Fundamentals

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Right answer is (B) SYNCHRONOUS TDM

Explanation: In Synchronous TDM, many TIME slots are wasted. Other techniques can help overcome this problem.

25.

A technique that can be a solution to the problem of synchronizing data sources.(a) framing(b) data link control(c) full link control(d) pulse stuffingThis question was posed to me by my college professor while I was bunking the class.My question is taken from Multiplexing topic in section Data Communications and Computer Networks of Computer Fundamentals

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Right OPTION is (d) PULSE STUFFING

For explanation: Pulse stuffing is a technique that can be a SOLUTION to the problem of synchronizing data sources. In pulse stuffing, the outgoing data rate is higher than sum of incoming RATES.

26.

Controlling the frequency is referred as _________(a) frequency modulation(b) hertz modulation(c) amplitude modulation(d) phase modulationI got this question in exam.My doubt stems from Multiplexing in section Data Communications and Computer Networks of Computer Fundamentals

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The CORRECT CHOICE is (a) FREQUENCY modulation

Explanation: It is referred to as frequency modulation. When there is a CHANGE in frequency, it is referred to as frequency modulation.

27.

For voice, each channel contains a ___ word of digitized data.(a) 2(b) 1(c) 0(d) 4I have been asked this question in an interview for internship.The origin of the question is Multiplexing topic in chapter Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT answer is (b) 1

Explanation: In DIGITAL carrier systems, for voice each channel CONTAINS one word of digitized data. The data RATE is 1.544 Mbps. Five out of six frames have 8 BIT PCM samples.
28.

In this type of multiplexing time slots are preassigned to sources and fixed.(a) TDM(b) Synchronous TDM(c) Asynchronous TDM(d) FDMThis question was addressed to me in an interview.This question is from Multiplexing in portion Data Communications and Computer Networks of Computer Fundamentals

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The CORRECT CHOICE is (b) Synchronous TDM

Easy explanation: TDM is time division MULTIPLEXING. Data RATE of medium exceeds data rate of digital SIGNAL to be transmitted.

29.

In TDM, the samples occupy adjacent time slots.(a) True(b) FalseI had been asked this question in exam.This interesting question is from Multiplexing topic in section Data Communications and Computer Networks of Computer Fundamentals

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30.

The purpose of communication system is to transfer information from _______ to the destination.(a) user(b) source(c) system(d) stationThe question was asked in an interview.My query is from Modulation Techniques in portion Data Communications and Computer Networks of Computer Fundamentals

Answer» RIGHT CHOICE is (b) source

For explanation I would say: The answer is source. A communication SYSTEM TRANSFERS information from source to the DESTINATION.
31.

WDM stands for?(a) Wave division multiplexing(b) Wavelength division multiplexing(c) Wavelength dependent multiplexing(d) Wave dependent multiplexingThe question was posed to me in an interview for job.Asked question is from Multiplexing in chapter Data Communications and Computer Networks of Computer Fundamentals

Answer» CORRECT OPTION is (B) Wavelength DIVISION multiplexing

The best I can explain: It stands for Wavelength division multiplexing. It has same GENERAL architecture as FDM. FDM is frequency division multiplexing.
32.

A modulation technique that improves channel bandwidth utilization.(a) direct(b) modulation(c) demodulation(d) multiplexingThe question was asked in a job interview.I want to ask this question from Modulation Techniques in chapter Data Communications and Computer Networks of Computer Fundamentals

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The CORRECT CHOICE is (d) multiplexing

The best EXPLANATION: Multiplexing is a modulation technique that IMPROVES channel bandwidth UTILIZATION.

33.

A multiplexing technique based on sampling.(a) FDM(b) TDM(c) SDM(d) FMThis question was addressed to me during an online interview.I need to ask this question from Modulation Techniques topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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The correct option is (B) TDM

The explanation is: TDM which STANDS for TIME division multiplexing is BASED on sampling which is a modulation technique.

34.

An example of FDM:(a) broadcast radio(b) telephone(c) machines(d) semi-duplexI got this question in an internship interview.The origin of the question is Modulation Techniques topic in division Data Communications and Computer Networks of Computer Fundamentals

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The correct OPTION is (a) broadcast radio

To EXPLAIN: Broadcast radio is an EXAMPLE of FDM. This allows several MESSAGES to be TRANSLATED from baseband.

35.

FDM stands for?(a) Frequency Division Multiplexing(b) Frequency Dependent Multiplexing(c) Frequency Diverged Multiplexing(d) Frequency Derived MultiplexingThe question was posed to me in unit test.This interesting question is from Modulation Techniques in chapter Data Communications and Computer Networks of Computer Fundamentals

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The correct ANSWER is (a) Frequency DIVISION Multiplexing

The best I can EXPLAIN: FDM STANDS for Frequency Division Multiplexing. This allows several messages to be translated from baseband, where they are all in the same frequency.

36.

Controlling the phase is referred as __________(a) modulation(b) half modulation(c) amplitude modulation(d) phase modulationThe question was posed to me by my college professor while I was bunking the class.I need to ask this question from Modulation Techniques in division Data Communications and Computer Networks of Computer Fundamentals

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The CORRECT ANSWER is (d) phase modulation

The EXPLANATION: It is REFERRED to as phase modulation. When there is a CHANGE in amplitude, it is referred to as amplitude modulation.

37.

A transmission mode that can transmit data in both the directions but transmits in only one direction at a time.(a) simplex(b) half duplex(c) full duplex(d) semi-duplexThis question was addressed to me in a national level competition.My doubt stems from Modulation Techniques topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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Correct ANSWER is (b) half DUPLEX

To explain I would say: The half duplex mode supports two WAY traffic but only in ONE DIRECTION at a time.

38.

The carrier wave is a _________(a) tan wave(b) cosec wave(c) sine wave(d) cot waveThis question was addressed to me in my homework.This intriguing question originated from Modulation Techniques in section Data Communications and Computer Networks of Computer Fundamentals

Answer» RIGHT CHOICE is (c) sine wave

For EXPLANATION: The carrier wave is generally a sine wave. Carrier wave is used to TRANSFER the signal from source to destination.
39.

In TDM, the samples occupy adjacent time slots.(a) True(b) FalseI have been asked this question in an interview for job.This intriguing question comes from Modulation Techniques in portion Data Communications and Computer Networks of Computer Fundamentals

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Correct choice is (a) TRUE

Explanation: The statement is true. The TDM technique is based on sampling and they occupy adjacent slots and are TRANSMITTED in a sequence.

40.

A coaxial cable has a bandwidth of _________ of megahertz.(a) 100(b) 150(c) 1000(d) 10000The question was asked by my college director while I was bunking the class.The query is from Modulation Techniques topic in section Data Communications and Computer Networks of Computer Fundamentals

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The correct choice is (a) 100

Best explanation: A COAXIAL cable has a bandwidth of 100’s of Mhz. BASEBAND speed is in a few KHZ. MULTIPLEXING improves channel bandwidth UTILIZATION.

41.

A technique of transmitting data or images or videos (information) using a continuous signal.(a) direct(b) network(c) analog(d) multipleI have been asked this question in quiz.I want to ask this question from Transmission Modes topic in section Data Communications and Computer Networks of Computer Fundamentals

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Correct option is (C) ANALOG

The best I can explain: Analog is a technique of transmitting data or images or videos (information) using a continuous SIGNAL, which VARIES in amplitude, PHASE or some other property.

42.

A walkie-talkie operates in ____________(a) simplex(b) half duplex(c) full duplex(d) semi-duplexThe question was posed to me in my homework.I would like to ask this question from Transmission Modes in division Data Communications and Computer Networks of Computer Fundamentals

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The correct option is (b) HALF duplex

To ELABORATE: A walkie-talkie OPERATES in half duplex mode. It can only send or receive a TRANSMISSION at any given time.

43.

Fire alarms are based on this type of transmission:(a) direct(b) network(c) analog(d) multipleThis question was posed to me during a job interview.My question is based upon Transmission Modes topic in portion Data Communications and Computer Networks of Computer Fundamentals

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Right answer is (c) analog

Explanation: Analog transmission is a TECHNIQUE of transmitting VOICE, DATA, image, signal or VIDEO information. Fire alarm systems work in the same WAY.

44.

A communication between a computer and a keyboard involves ____________ duplex transmission.(a) simplex(b) half duplex(c) full duplex(d) semi-duplexI got this question during an interview.Origin of the question is Transmission Modes topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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Right CHOICE is (a) simplex

To explain I would say: It involves simplex DUPLEX transmission. Another example of a simplex duplex transmission is LOUDSPEAKER SYSTEM.

45.

Telephone networks operate in this mode.(a) simplex(b) half duplex(c) full duplex(d) semi-duplexThe question was asked in quiz.I want to ask this question from Transmission Modes in section Data Communications and Computer Networks of Computer Fundamentals

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Right CHOICE is (c) full duplex

To EXPLAIN: Telephone networks OPERATE in full duplex mode. It can transmit data in both the DIRECTIONS.

46.

A transmission mode that can transmit data in both the directions but transmits in only one direction at a time.(a) simplex(b) half duplex(c) full duplex(d) semi-duplexThis question was addressed to me during an interview.This question is from Transmission Modes topic in section Data Communications and Computer Networks of Computer Fundamentals

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47.

A transmission that generally involves dedicated circuits.(a) simplex(b) half duplex(c) full duplex(d) semi-duplexI had been asked this question in final exam.My question comes from Transmission Modes in portion Data Communications and Computer Networks of Computer Fundamentals

Answer» RIGHT answer is (a) simplex

To explain I would SAY: The answer is simplex. Simplex GENERALLY involves DEDICATED circuits. TV broadcasting is an example.
48.

Which of the following isn’t a type of transmission mode?(a) physical(b) simplex(c) full duplex(d) half duplexThe question was posed to me during a job interview.My question comes from Transmission Modes topic in chapter Data Communications and Computer Networks of Computer Fundamentals

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The correct choice is (a) physical

For explanation: There are THREE modes of transmission: SIMPLEX, half DUPLEX and full duplex. Transmission modes tell the direction of SIGNAL FLOW between two devices.

49.

Transmission mode controls the direction of signal flow.(a) True(b) FalseI had been asked this question in an international level competition.I'm obligated to ask this question of Transmission Modes topic in portion Data Communications and Computer Networks of Computer Fundamentals

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Right CHOICE is (a) True

The explanation is: The STATEMENT is true. The TERM transmission mode defines the direction of flow of information between two communication DEVICES. It TELLS the direction of signal flow between two devices.

50.

A term that defines the direction of flow of information between devices.(a) interconnectivity(b) intra connectivity(c) transmission mode(d) transmissionThis question was posed to me during an interview for a job.Asked question is from Transmission Modes in chapter Data Communications and Computer Networks of Computer Fundamentals

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Right option is (c) transmission MODE

For explanation: The term transmission mode defines the DIRECTION of flow of information between TWO communication devices. It tells the direction of signal flow.