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.

Transmission data rate is decided by ____________(a) network layer(b) physical layer(c) data link layer(d) transport layerI got this question during a job interview.My doubt is from Reference Models in section Computer Networks Introduction of Computer Network

Answer»

Correct option is (b) physical layer

The BEST explanation: Physical layer is a layer 1 device which DEALS with NETWORK cables or the standards in use like connectors, pins, electric current USED etc. Basically the transmission speed is determined by the cables and connectors used. Hence it is physical layer that determines the transmission speed in network. Some of the cables used for high speed data transmission are optical fiber cables and twisted pair cables.
Discussion
2.

Which layer provides the services to user?(a) application layer(b) session layer(c) presentation layer(d) physical layerThe question was asked during a job interview.I'd like to ask this question from Reference Models topic in portion Computer Networks Introduction of Computer Network

Answer»

The CORRECT answer is (a) application LAYER

The explanation: In NETWORKING, a user mainly interacts with application layer to create and send INFORMATION to other COMPUTER or network. Application layer provides the interface between applications and the network. It is the top-most layer in both the TCP/IP and the OSI model.
Discussion
3.

Which address is used to identify a process on a host by the transport layer?(a) physical address(b) logical address(c) port address(d) specific addressI have been asked this question at a job interview.I want to ask this question from Reference Models topic in portion Computer Networks Introduction of Computer Network

Answer»

The correct option is (c) PORT address

Easiest explanation: A port number is a way to identify a specific process to which an Internet or other network MESSAGE is to be forwarded when it arrives at a server. Some examples of port numbers are port 20 which is used for FTP data, port 22 which is used for SSH remote login ,and port 23 which is used for TELNET.
Discussion
4.

Which layer is responsible for process to process delivery in a general network model?(a) network layer(b) transport layer(c) session layer(d) data link layerThis question was posed to me in class test.This interesting question is from Reference Models topic in chapter Computer Networks Introduction of Computer Network

Answer»

The correct answer is (b) transport layer

Best explanation: The role of Transport layer (Layer 4) is to ESTABLISH a logical end to end connection between two systems in a network. The protocols used in Transport layer is TCP and UDP. The transport layer is responsible for SEGMENTATION of the DATA. It uses ports for the implementation of process-to-process delivery.
Discussion
5.

TCP/IP model was developed _____ the OSI model.(a) prior to(b) after(c) simultaneous to(d) with no link toI got this question in a national level competition.I would like to ask this question from Reference Models in chapter Computer Networks Introduction of Computer Network

Answer»

Correct option is (a) prior to

Easiest EXPLANATION: Several TCP/IP prototypes were developed at multiple research centers between 1978 and 1983, WHEREAS OSI REFERENCE model was developed in the year 1984. TCP/IP was developed with the intention to create a model for the Internet while OSI was intended to be a general network model.
Discussion
6.

Which address is used on the internet for employing the TCP/IP protocols?(a) physical address and logical address(b) port address(c) specific address(d) all of the mentionedThe question was posed to me in an interview for internship.This is a very interesting question from Reference Models topic in portion Computer Networks Introduction of Computer Network

Answer»

Right option is (d) all of the mentioned

The EXPLANATION: The physical, logical, port and specific addresses are used in TCP/IP protocol. All the addressing schemes, that is physical (MAC) and logical ADDRESS, port address and specific address are employed in both TCP/IP MODEL and OSI model. In TCP/IP, the addresses are more FOCUSED on the internet implementation of these addresses.
Discussion
7.

Which layer is used to link the network support layers and user support layers?(a) session layer(b) data link layer(c) transport layer(d) network layerI have been asked this question during an online exam.My question comes from Reference Models topic in section Computer Networks Introduction of Computer Network

Answer» CORRECT answer is (C) transport layer

For EXPLANATION I would say: Physical, data link and network layers are network support layers and SESSION, presentation and application layers are USER support layers. The transport layer links these layers by segmenting and rearranging the data. It uses protocols like TCP and UDP.
Discussion
8.

TCP/IP model does not have ______ layer but OSI model have this layer.(a) session layer(b) transport layer(c) application layer(d) network layerThe question was posed to me by my college director while I was bunking the class.My question is based upon Reference Models in chapter Computer Networks Introduction of Computer Network

Answer» RIGHT answer is (a) session LAYER

Explanation: In OSI reference model, there are two LAYERS which are not present in TCP/IP model. They are PRESENTATION and Session layer. The functions of Presentation and Session layer in the OSI model are handled by the transport layer itself in TCP/IP.
Discussion
9.

The number of layers in ISO OSI reference model is __________(a) 4(b) 5(c) 6(d) 7This question was posed to me in my homework.This interesting question is from Reference Models topic in division Computer Networks Introduction of Computer Network

Answer»

Correct option is (d) 7

Explanation: In OSI REFERENCE model, there are 7 layers namely APPLICATION, Presentation, Session, Transport, Network, Data Link and Physical layer. Each layer uses a protocol to perform its designated FUNCTION, for example, the data link layer uses error detection PROTOCOLS for error control FUNCTIONS.
Discussion
10.

OSI stands for __________(a) open system interconnection(b) operating system interface(c) optical service implementation(d) open service InternetI had been asked this question in an interview.This is a very interesting question from Reference Models in chapter Computer Networks Introduction of Computer Network

Answer»

Correct option is (a) open system interconnection

Best explanation: OSI is the abbreviation for Open System Interconnection. OSI model provides a structured plan on how applications communicate over a NETWORK, which also helps US to have a structured plan for troubleshooting. It is RECOGNIZED by the ISO as the generalized model for COMPUTER network i.e. it can be MODIFIED to design any kind of computer network.
Discussion
11.

Which of the following statements can be associated with OSI model?(a) A structured way to discuss and easier update system components(b) One layer may duplicate lower layer functionality(c) Functionality at one layer no way requires information from another layer(d) It is an application specific network modelI had been asked this question at a job interview.Origin of the question is Reference Models in section Computer Networks Introduction of Computer Network

Answer» RIGHT answer is (c) Functionality at one layer no way requires information from another layer

For explanation I would say: One layer may USE the information from another layer, for example timestamp value. The information is CONTAINED in the header inserted by the previous layer. The headers are added as the packet moves from higher layers to the LOWER layers.
Discussion
12.

In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______(a) Added(b) Removed(c) Rearranged(d) RandomizedI got this question during an interview.This intriguing question comes from Reference Models in portion Computer Networks Introduction of Computer Network

Answer»

The correct option is (b) Removed

Best explanation: In OSI REFERENCE model, when DATA packet moves from lower layers to higher layer, HEADERS get removed. Whereas when the data packet moves from higher layer to lower layers, headers are ADDED. These headers contain the essential control information for the PROTOCOLS used on the specific layer.
Discussion
13.

In TCP IP Model, when data is sent from device A to device B, the 5th layer to receive data at B is ____________(a) Application layer(b) Transport layer(c) Link layer(d) Session layerThis question was addressed to me by my school principal while I was bunking the class.My query is from Reference Models topic in division Computer Networks Introduction of Computer Network

Answer»

Correct answer is (a) Application layer

Best explanation: In TCP/IP model, the fifth layer is application layer. When data is SENT from device A to device B, the 5th layer to receive data at B is application layer. Application layer provides the INTERFACE between applications and the network. The USER interacts with only this layer.
Discussion
14.

In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is _________(a) Application layer(b) Transport layer(c) Link layer(d) Session layerI had been asked this question in an internship interview.This key question is from Reference Models topic in section Computer Networks Introduction of Computer Network

Answer»

The correct option is (d) Session layer

For explanation I would say: In OSI reference model, the fifth layer is Session layer. Session layer provides the MECHANISM for opening, closing and managing a session between end-user application processes. In TCP/IP protocol stack, the functions of the session layer are HANDLED by the TRANSPORT layer itself and THUS the session layer is missing from the TCP/IP model.
Discussion
15.

Delimiting and synchronization of data exchange is provided by __________(a) Application layer(b) Session layer(c) Transport layer(d) Link layerThe question was asked in a job interview.Question is from Reference Models topic in portion Computer Networks Introduction of Computer Network

Answer»

Right option is (b) SESSION layer

To elaborate: The session layer provides the mechanism for opening, closing and managing a session between end-user application processes. The session layer 5 is responsible for establishing managing SYNCHRONIZING and terminating sessions. In TCP/IP protocol stack, the functions of the session layer are handled by the TRANSPORT layer itself and thus the session layer is MISSING from the TCP/IP MODEL.
Discussion
16.

The functionalities of the presentation layer include ____________(a) Data compression(b) Data encryption(c) Data description(d) All of the mentionedThis question was addressed to me in semester exam.I need to ask this question from Reference Models topic in division Computer Networks Introduction of Computer Network

Answer»

The correct option is (d) All of the mentioned

Easiest EXPLANATION: Some functions of the presentation layer include character-code TRANSLATION, data conversion, data encryption and decryption, and data translation. It connects the application layer with the LAYERS below converting the human READABLE text and media to machine readable format and vice-versa.
Discussion
17.

Transport layer is implemented in ______________(a) End system(b) NIC(c) Ethernet(d) Signal transmissionThis question was posed to me in an interview.The query is from Reference Models in chapter Computer Networks Introduction of Computer Network

Answer»

Right choice is (a) End system

For explanation I WOULD say: APPLICATION, PRESENTATION, Session and TRANSPORT layer are implemented in the end system. The transport layer handles the process to process delivery of the packet through ports.
Discussion
18.

Application layer is implemented in ____________(a) End system(b) NIC(c) Ethernet(d) Packet transportI had been asked this question by my school principal while I was bunking the class.This intriguing question comes from Reference Models topic in division Computer Networks Introduction of Computer Network

Answer» CORRECT OPTION is (a) End SYSTEM

Explanation: Not only application layer, but presentation layer, session layer and transport layer are ALSO implemented in the end system. The layers below are implemented outside the end system, for example, the NETWORK layer is implemented on the routers and the physical layer is implemented for the medium.
Discussion
19.

Which of the following layers is an addition to OSI model when compared with TCP IP model?(a) Application layer(b) Presentation layer(c) Session layer(d) Session and Presentation layerThe question was posed to me during a job interview.Question is from Reference Models topic in portion Computer Networks Introduction of Computer Network

Answer»

The correct CHOICE is (d) SESSION and Presentation LAYER

The EXPLANATION: The only difference between OSI model and TCP/IP model is that the functions of Presentation and Session layer in the OSI model are handled by the TRANSPORT layer itself in TCP/IP. OSI is a generalized model and TCP/IP is an application specific model.
Discussion
20.

The number of layers in ISO OSI reference model is __________(a) 5(b) 7(c) 6(d) 10I have been asked this question in an interview.Query is from Reference Models in chapter Computer Networks Introduction of Computer Network

Answer» CORRECT answer is (b) 7

Explanation: The seven layers in ISO OSI reference model is Application, PRESENTATION, Session, Transport, Network, Data link and Physical layer. OSI stands for Open System INTERCONNECT and it is a generalized model.
Discussion
21.

How many layers are present in the Internet protocol stack (TCP/IP model)?(a) 5(b) 7(c) 6(d) 10This question was posed to me in final exam.The question is from Reference Models topic in division Computer Networks Introduction of Computer Network

Answer» CORRECT choice is (a) 5

To elaborate: There are five layers in the Internet Protocol stack. The five layers in Internet Protocol stack is APPLICATION, TRANSPORT, Network, Data link and Physical layer. The internet protocol stack model is ALSO called the TCP/IP model and it’s used in modern Internet Communication.
Discussion
22.

Which of the following factors affect transmission rate in DSL?(a) The gauge of the twisted-pair line(b) Degree of electrical interfernece(c) Shadow fading(d) The gauge of the twisted-pair line and degree of electrical interferenceI have been asked this question in homework.The doubt is from Access Networks topic in section Computer Networks Introduction of Computer Network

Answer»

Correct option is (d) The gauge of the TWISTED-pair LINE and degree of electrical interference

To EXPLAIN I would say: Because DSL is MADE of twisted WIRE copper pair, the gauge of twisted pair line i.e. the protection and electrical interference would affect the transmission rate in DSL. Unlike DSL, FTTP is not really affected by these factors.
Discussion
23.

ONT is connected to splitter using _________(a) High speed fibre cable(b) HFC(c) Optical cable(d) Twisted pair cableI had been asked this question by my college director while I was bunking the class.The query is from Access Networks topic in section Computer Networks Introduction of Computer Network

Answer»

Right choice is (c) Optical cable

The BEST I can EXPLAIN: ONT stands for Optical Network Terminal. The ONT connects to the TERMINATION Point (TP) with an optical fibre cable. It translates light signals from the fibre optic line to electric signals that the router can read.
Discussion
24.

Home Access is provided by __________(a) DSL(b) FTTP(c) Cable(d) All of the mentionedThis question was addressed to me in a job interview.Query is from Access Networks topic in chapter Computer Networks Introduction of Computer Network

Answer»

Right answer is (d) All of the mentioned

To explain: Home Internet ACCESS is provided by DSL, FTTP, and Cable. FTTP provides the fastest speeds FOLLOWED by the cable connections and then the DSLs. FTTP is popularly used in MODERN connections.
Discussion
25.

StarBand provides __________(a) FTTH internet access(b) Cable access(c) Telephone access(d) Satellite accessThe question was posed to me in unit test.My enquiry is from Access Networks topic in division Computer Networks Introduction of Computer Network

Answer»

The correct answer is (d) Satellite access

The best I can explain: STARBAND was a two-way satellite BROADBAND Internet service AVAILABLE in the U.S. from 2000–2015. It was discontinued from September 30 2015 due to increasing competition from other ISPS.
Discussion
26.

Among the optical-distribution architectures that are essentially switched ethernet is __________(a) AON(b) PON(c) NON(d) MONI have been asked this question in my homework.Question is from Access Networks topic in portion Computer Networks Introduction of Computer Network

Answer» RIGHT CHOICE is (a) AON

Easiest explanation: AON STANDS for Active optical networks which are essentially switched ETHERNETS. Each user has his/her own dedicated optical fiber line CONNECTING to the ISP in an AON.
Discussion
27.

Which of the following statements is not applicable for cable internet access?(a) It is a shared broadcast medium(b) It includes HFCs(c) Cable modem connects home PCto Ethernet port(d) Analog signal is converted to digital signal in DSLAMThe question was posed to me in examination.My question is taken from Access Networks topic in division Computer Networks Introduction of Computer Network

Answer»

Right answer is (d) ANALOG SIGNAL is converted to digital signal in DSLAM

To elaborate: CMTS stands for Cable modem termination system. In cable access analog signal is converted to digital signal by CMTS. In cable internet access, internet is not provided through telephone LINES. DSLAM is used by Telecom COMPANIES.
Discussion
28.

HFC contains _______(a) Fibre cable(b) Coaxial cable(c) A combination of Fibre cable and Coaxial cable(d) Twisted Pair CableI had been asked this question in examination.Question is from Access Networks topic in chapter Computer Networks Introduction of Computer Network

Answer»

Right option is (C) A combination of Fibre cable and Coaxial cable

To explain I WOULD say: Hybrid fiber-coaxial (HFC) is a telecommunications industry term for a BROADBAND network that combines optical fiber and coaxial cable. It has been POPULARLY used since the early 1990s. It is STRONGER than the optical fiber cables and faster than the co-axial cables.
Discussion
29.

Which of the following terms is not associated with DSL?(a) DSLAM(b) CO(c) Splitter(d) CMTSI had been asked this question in homework.The origin of the question is Access Networks topic in chapter Computer Networks Introduction of Computer Network

Answer»

The correct option is (d) CMTS

The best I can explain: CMTS STANDS for Cable modem termination system. It is used in cable internet access. In cable internet access, internet is not provided through telephone LINES and the COMPANIES that provide such connections don’t necessarily provide telephone access.
Discussion
30.

The function of DSLAM is to __________(a) Convert analog signals into digital signals(b) Convert digital signals into analog signals(c) Amplify digital signals(d) De-amplify digital signalsThe question was asked in final exam.My enquiry is from Access Networks in division Computer Networks Introduction of Computer Network

Answer»

Right choice is (a) Convert ANALOG signals into DIGITAL signals

To elaborate: DSLAM stands for Digital Subscriber Line Access Multiplexer and it’s used by Telcos to convert the analog signals to digital signals for the purpose of providing internet. The DSLAM located in a telco’s CENTRAL Office does this FUNCTION.
Discussion
31.

DSL telcos provide which of the following services?(a) Wired phone access(b) ISP(c) Wired phone access and ISP(d) Network routing and ISPThis question was posed to me in an interview for internship.The query is from Access Networks topic in section Computer Networks Introduction of Computer Network

Answer»

The CORRECT choice is (c) Wired phone ACCESS and ISP

Best explanation: DSL stands for DIGITAL Subscriber Line and ISP stands for INTERNET Service Provider. In a Digital Subscriber Line system, the same company which provides phone CONNECTION is also an ISP. The internet is provided through the pre-installed telephone lines.
Discussion
32.

Which of this is not a constituent of residential telephone line?(a) A high-speed downstream channel(b) A medium-speed downstream channel(c) A low-speed downstream channel(d) An ultra-high speed downstream channelI have been asked this question in exam.Origin of the question is Access Networks topic in chapter Computer Networks Introduction of Computer Network

Answer» CORRECT OPTION is (c) A low-speed downstream channel

Explanation: A low-speed downstream channel is not a CONSTITUENT of a residential telephone LINE. But it might be just a two-way telephone channel. Internet can be provided through a high-speed downstream channel in a residential telephone line.
Discussion
33.

Which of the following networks extends a private network across public networks?(a) local area network(b) virtual private network(c) enterprise private network(d) storage area networkThe question was asked in my homework.I'm obligated to ask this question of Basics in division Computer Networks Introduction of Computer Network

Answer»

Right choice is (b) VIRTUAL PRIVATE network

Best explanation: A virtual private network extends a private network across a PUBLIC network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.VPN provides enhanced security and ONLINE anonymity to users on the internet. It is also used to unblock websites which are unavailable in certain regions.
Discussion
34.

Network congestion occurs _________(a) in case of traffic overloading(b) when a system terminates(c) when connection between two nodes terminates(d) in case of transfer failureI got this question in an interview.Question is taken from Basics in portion Computer Networks Introduction of Computer Network

Answer»

The CORRECT answer is (a) in case of traffic overloading

Explanation: Network congestion occurs when traffic in the network is more than the network COULD HANDLE. To avoid network congestion, the network management uses various open-loop and closed-loop congestion CONTROL techniques.
Discussion
35.

A list of protocols used by a system, one protocol per layer, is called ________(a) protocol architecture(b) protocol stack(c) protocol suite(d) protocol systemI have been asked this question in an interview for internship.My question is based upon Basics topic in division Computer Networks Introduction of Computer Network

Answer» CORRECT option is (b) protocol stack

The best I can explain: A protocol stack refers to a group of PROTOCOLS that are running concurrently that are employed for the implementation of network protocol suite. Each LAYER in the network MODEL has to USE one specific protocol from the protocol stack.
Discussion
36.

A __________ is a device that forwards packets between networks by processing the routing information included in the packet.(a) bridge(b) firewall(c) router(d) hubI had been asked this question by my school principal while I was bunking the class.The origin of the question is Basics in chapter Computer Networks Introduction of Computer Network

Answer»

Right answer is (c) router

Easiest explanation: A router is a NETWORKING device that FORWARDS data packets between COMPUTER networks. Routers perform the TRAFFIC directing functions on the Internet. They MAKE use of routing protocols like RIP to find the cheapest path to the destination.
Discussion
37.

Bluetooth is an example of __________(a) personal area network(b) local area network(c) virtual private network(d) wide area networkI had been asked this question in semester exam.My doubt stems from Basics topic in portion Computer Networks Introduction of Computer Network

Answer» RIGHT choice is (a) personal AREA network

For explanation: Bluetooth is a wireless technology USED to create a wireless personal area network for data TRANSFER up to a distance of 10 METERS. It operates on 2.45 GHz frequency band for transmission.
Discussion
38.

Communication channel is shared by all the machines on the network in ________(a) broadcast network(b) unicast network(c) multicast network(d) anycast networkI got this question in my homework.Question is from Basics topic in portion Computer Networks Introduction of Computer Network

Answer»

Right OPTION is (a) BROADCAST network

To explain: In a broadcast network, information is sent to all stations in a network WHEREAS in a multicast network the data or information is sent to a group of stations in the network. In unicast network, information is sent to only one SPECIFIC STATION. The broadcast address of the network is the last assigned address of the network.
Discussion
39.

In computer network nodes are _________(a) the computer that originates the data(b) the computer that routes the data(c) the computer that terminates the data(d) all of the mentionedI had been asked this question by my school principal while I was bunking the class.The query is from Basics topic in division Computer Networks Introduction of Computer Network

Answer» RIGHT answer is (d) all of the mentioned

The BEST explanation: In a computer network, a node can be anything that is CAPABLE of sending data or receiving data or even routing the data to its destination. Routers, Computers and Smartphones are some EXAMPLES of network nodes.
Discussion
40.

Which of the following computer networks is built on the top of another network?(a) prior network(b) chief network(c) prime network(d) overlay networkThe question was asked in unit test.The query is from Basics in chapter Computer Networks Introduction of Computer Network

Answer»

Correct CHOICE is (d) overlay network

Explanation: An overlay network is a computer network that is BUILT on top of another network. Some examples of an overlay network are Virtual PRIVATE Networks (VPN) and Peer-to-Peer Networks (P2P).
Discussion
41.

Two devices are in network if __________(a) a process in one device is able to exchange information with a process in another device(b) a process is running on both devices(c) PIDs of the processes running of different devices are same(d) a process is active and another is inactiveI had been asked this question during an online exam.I'd like to ask this question from Basics in section Computer Networks Introduction of Computer Network

Answer» CORRECT answer is (a) a process in one device is able to exchange information with a process in another device

The best explanation: A computer network, or data network, is a DIGITAL telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections between nodes. The nodes have certain processes which enable them to share a SPECIFIC type of data using a DISTINCT protocol.
Discussion
42.

When collection of various computers seems a single coherent system to its client, then it is called _________(a) computer network(b) distributed system(c) networking system(d) mail systemI had been asked this question by my college professor while I was bunking the class.My question comes from Basics topic in section Computer Networks Introduction of Computer Network

Answer»

The correct choice is (B) distributed system

To elaborate: A Computer network is defined as a collection of INTERCONNECTED computers which uses a single TECHNOLOGY for connection.

A distributed system is also the same as computer network but the main difference is that the whole collection of computers appears to its USERS as a single coherent system.

Example:- World wide web
Discussion
43.

Three or more devices share a link in ________ connection.(a) Unipoint(b) Multipoint(c) Point to point(d) SimplexThe question was posed to me in an interview for job.This question is from Basics in chapter Computer Networks Introduction of Computer Network

Answer»

Correct option is (b) Multipoint

The best I can explain: A multipoint COMMUNICATION is established when three or many network NODES are connected to each other. FRAME relay, Ethernet and ATM are some EXAMPLES of multipoint connections.
Discussion
44.

A _________ set of rules that governs data communication.(a) Protocols(b) Standards(c) RFCs(d) ServersThis question was addressed to me during an interview for a job.This interesting question is from Basics topic in division Computer Networks Introduction of Computer Network

Answer» RIGHT choice is (a) Protocols

For EXPLANATION: In COMMUNICATIONS, a protocol refers to a set of rules and regulations that allow a network of nodes to transmit and receive information. Each LAYER in the network model has a protocol set, for example, the transport layer has TCP and UDP protocols.
Discussion
45.

Which of this is not a network edge device?(a) PC(b) Smartphones(c) Servers(d) SwitchI have been asked this question in an international level competition.Asked question is from Basics in chapter Computer Networks Introduction of Computer Network

Answer»

Correct choice is (d) Switch

For explanation: Network EDGE devices refer to host SYSTEMS, which can host applications like web BROWSER. A switch can’t operate as a host, but as a central device which can be USED to manage network COMMUNICATION.
Discussion
46.

Which organization has authority over interstate and international commerce in the communications field?(a) ITU-T(b) IEEE(c) FCC(d) ISOCI got this question during an online interview.This question is from Basics in section Computer Networks Introduction of Computer Network

Answer»

Correct choice is (c) FCC

To elaborate: FCC is the abbreviation for Federal Communications Commission. FCC is RESPONSIBLE for REGULATING all interstate communications originating or terminating in USA. It was FOUNDED in the year 1934.
Discussion
47.

A _______ is the physical path over which a message travels.(a) Path(b) Medium(c) Protocol(d) RouteI got this question during a job interview.Asked question is from Basics in chapter Computer Networks Introduction of Computer Network

Answer»

The correct option is (b) Medium

The explanation: Messages travel from sender to RECEIVER VIA a physical PATH CALLED the medium using a set of methods/rules called protocol. Mediums can be GUIDED (wired) or unguided (wireless).
Discussion
48.

The first Network was called ________(a) CNNET(b) NSFNET(c) ASAPNET(d) ARPANETI have been asked this question during an interview.I need to ask this question from Basics topic in chapter Computer Networks Introduction of Computer Network

Answer»

The correct option is (d) ARPANET

The best EXPLANATION: ARPANET STANDS for Advanced RESEARCH Projects Agency Networks. It was the FIRST network to be implemented which used the TCP/IP PROTOCOL in the year 1969.
Discussion
49.

Communication between a computer and a keyboard involves ______________ transmission.(a) Automatic(b) Half-duplex(c) Full-duplex(d) SimplexThe question was asked in an online interview.I want to ask this question from Basics in division Computer Networks Introduction of Computer Network

Answer»

The CORRECT answer is (d) SIMPLEX

To explain I would say: In simplex transmission, data flows in single direction which in this CASE refers to the data flowing from the keyboard to the computer. ANOTHER example would be of the mouse where the data flows from the mouse to the computer only.
Discussion
50.

The structure or format of data is called ___________(a) Syntax(b) Semantics(c) Struct(d) FormattingI have been asked this question in an interview.This interesting question is from Basics topic in portion Computer Networks Introduction of Computer Network

Answer» RIGHT option is (a) Syntax

To explain: The STRUCTURE and format of data are defined using syntax. Semantics defines how a particular PATTERN to be INTERPRETED, and what action is to be taken based on that interpretation. In programming languages, syntax of the instructions plays a vital role in designing of the PROGRAM.
Discussion