Data Communication And Networking [MCQ] Test Your Knowledge! April 19, 2024 by jaminrai Data Communication And Networking 1 / 65 The ______ model shows how the network functions of a computer ought to be organized. ISO OSI ANSI CCITT 2 / 65 E-mail is a/an......... protocol to access the Internet None of the above service of Internet Organization, which controls the Internet 3 / 65 Frequency of failure and network recovery time after a failure are measures of the ________ of a network. security performance feasibility reliability 4 / 65 __________is a network that covers geographic areas that are larger, such as districts or cities. LAN None of these MAN WAN 5 / 65 The _____ layer ensures interoperability between communicating devices trhough transformation of data into mutually agreed upon format. Data link Session Transport Presentation 6 / 65 What is the maximum length of typical type of LAN? 3 KM 10 KM 1 KM 100KM 7 / 65 An unauthorized user is a network _______ issue. All of the above performance reliability security 8 / 65 Which one is not network topology? Ring BUS Star Client Server 9 / 65 The _____ layer enables the user to access the network Transport Data link Application Physical 10 / 65 The _________ layer coordinates the functions required to transmit a bit stream over a physical medium. physical network data link transport 11 / 65 Modem converts....... Sound signal to video Digital signal into sound None of the options are correct Sound into digital 12 / 65 In which network topology, devices are connected through the hub? Bus topology Star topology Ring topology None of the above 13 / 65 Communication between a computer and a keyboard involves ________ transmission. full-duplex simplex half-duplex automatic 14 / 65 ____________ is a network that connect sites that are in diverse locations. LAN None of these MAN WAN 15 / 65 When a host on network A sends a message to a host on network B, which address does the router look at? Physical None of these Port Logical 16 / 65 In client server network architecture, which statement is not true? It is less expensive architecture Data traffic is very high because of broad architecture Network controlling and management is easier. Secured and reliable network architecture 17 / 65 In a digital data transmission of computer networking, what is Mbps? Mega Bits Per Second Mega Bands Per Second Mega Bytes Per Second Media Bits Per Second 18 / 65 ____ is a collection of point to point links that may form a circle. Star Topology Mesh Topology Bus Topology Ring Topology 19 / 65 Which device is necessary to operate the Internet? Modem All of the above ISP CD-ROM 20 / 65 Give an example of full duplex mode of data communication. Television Internet FM Radio Walkie-talkie 21 / 65 Devices may be arranged in a _______ topology. All of the options are correct Bus Mesh Ring 22 / 65 The session, presentation and application layers are the ________ support layers. both network and uers user None of the option network 23 / 65 Which of the following statement in not true? All networks' components can be controlled by a single computer system. Network security is the most challenging job for network administrator. Communication has become faster, reliable but expensive for data communications. Computer resources such as hardware, software, data can be shared in a Network. 24 / 65 The ______ layer is responsible of the source to destination delivery of packet across multiple network links. Network Physical Data link Transport 25 / 65 Which protocol layer uses the protocols are WWW, HTTP, FTP, SMTP, e-mail, etc. Application Layer Protocol Transport Layer Protocol Internet Layer Protocol None of these 26 / 65 The OSI model consists of _______ layers. five eight seven six 27 / 65 Which is not related to Internet? UPS WWW TCP/IP ISP 28 / 65 The seven-layer _______ model provides guidelines for the development of universally compatible networking protocols. OSI ISO None IEEE 29 / 65 In the OSI model, encryption and decryption are functions of the_________layer. application session transport presentation 30 / 65 What does MAC stands for? Medic Access Certificate Media Accesses Control Micro Access Control Mandatory Access Control 31 / 65 Which of the following is a remote login service? Video conference FTP All of the above Telnet 32 / 65 In a _______ connection, more than two devices can share a single link. Primary Secondary Point-to-point Multipoint 33 / 65 Which is not Communication Media? Microwave Satellite NIC Wire 34 / 65 Which topology is more reliable and secured for a LAN? Star Bus Ring Mesh 35 / 65 A computer network permits sharing of ...... Information Resources None of these Both Resources And Information 36 / 65 IPv6 has ________ -bit address. Variable 128 64 32 37 / 65 Why was the OSI model developed? The rate of data transfer was increasing exponentially manufacturers disliked the TCP/IP protocol suite Standards were needed to allow any two systems to communicate None of the above 38 / 65 Each computer on the Internet has a unique numeric address called a/an... IP address Domain address web address Network binding 39 / 65 The _____ layer establishes, maintains, and synchronizes the interaction between communication devices Data link Transport Physical Session 40 / 65 Which is not an Internet service? e-telephone e-commerce e-fax e-mail 41 / 65 In which communication media, the data transfer rate is high? Twisted pair Fiber optics Microwave Co-axial cable 42 / 65 What are the five elements of basic communication system? Data, Sender, Receiver, Medium and Message Message, Sender, Receiver, Software and Protocols Message, Sender, Receiver, Rules and Protocols Message, Sender, Receiver, Medium and Protocols 43 / 65 In OSI model, what is the main function of the transport layer? updating and maintenance of routing tables node-to-node delivery process-to-process message delivery synchronization 44 / 65 The ________ layer is responsible for delivering data units from one station to the next without errors. network data link physical transport 45 / 65 _________ is a collection of many separate networks. None of these A LAN A WAN An Internet 46 / 65 Which of the following is not a guided data communication media? Satellite Twisted pair Coaxial cable Fiber optic 47 / 65 The information to be communicated in a data communications system is the __________ message transmission medium protocol 48 / 65 Which is not a guided media? UTP Cable Satellite STP Cable Fiber Optic 49 / 65 The_________ layer is responsible for moving frames from node to the next. physical transport None of these data link 50 / 65 The _________ address, also known as the link address, is the address of a node as defined by its LAN or WAN. Logical Physical Port None 51 / 65 Which one is an example of bound media Microwave transmission Laser transmission Infrared transmission Fiber optic 52 / 65 Which is web browser software? Windows NT Internet explorer All of the options Windows 2007 53 / 65 Which refers to the communication media? UTP cable Satellite All of the given options Fiber optic cable 54 / 65 A television broadcast is an example _________ of transmission. Simplex Half-duplex None of these Full-Duplex 55 / 65 The physical, data link and network layers are the __________ support layers. None of the option user network both network and uers 56 / 65 Which of the following is not a protocol? FTP POP NOS TCP/IP 57 / 65 Select the perfect order of dada communication system or model. Source, Sink, Encoder, Decoder, Transmitter, Receiver and Channel Source, Encoder, Channel, Transmitter, Receiver, Decoder and Sink Source, Encoder, Transmitter, Receiver, Channel, Decoder and Sink Source, Encoder, Transmitter, Channel, Receiver, Decoder and Sink 58 / 65 A_________________ is a set of rules that governs data communication. None of these standard Forum portocol 59 / 65 What is the basic characteristic of WAN? Simple and Mostly Private Simple and Mostly Public Complex and Mostly Private Complex and Mostly Public 60 / 65 ………….. is the technology that connects the machines and people within a site in a small area. LAN None of these WAN MAN 61 / 65 In …….. Network Topology nodes are connected in a single wire Star All Bus Mesh 62 / 65 Which is not unguided media? Radio wave Microwave Fiber optic Infrared 63 / 65 What is the correct order of OSI reference model of a computer network from botttom to top? physical, datalink, network, transport, session, presentation and application physical, datalink, transport, network, session, presentation and application physical, datalink, network, transport, presentation, session, and application physical, datalink, network, transport, session, application and presentation 64 / 65 The________ layer is responsible for the delivery of message from one process to another. transport physical none of these data link 65 / 65 The ________ is the physical path over which a message travels. protocol medium signal None of these Your score isThe average score is 58% 0% Restart quiz Post Views: 1,932