Data Communication And Networking [MCQ] Test Your Knowledge! April 19, 2024 by jaminrai Data Communication And Networking 1 / 65In OSI model, what is the main function of the transport layer? updating and maintenance of routing tables process-to-process message delivery synchronization node-to-node delivery 2 / 65____ is a collection of point to point links that may form a circle. Bus Topology Star Topology Mesh Topology Ring Topology 3 / 65What are the five elements of basic communication system? Message, Sender, Receiver, Medium and Protocols Data, Sender, Receiver, Medium and Message Message, Sender, Receiver, Software and Protocols Message, Sender, Receiver, Rules and Protocols 4 / 65Which device is necessary to operate the Internet? All of the above ISP Modem CD-ROM 5 / 65The ______ layer is responsible of the source to destination delivery of packet across multiple network links. Network Transport Physical Data link 6 / 65The ______ model shows how the network functions of a computer ought to be organized. ANSI OSI CCITT ISO 7 / 65A television broadcast is an example _________ of transmission. Full-Duplex Simplex None of these Half-duplex 8 / 65When a host on network A sends a message to a host on network B, which address does the router look at? Port Physical None of these Logical 9 / 65The _________ address, also known as the link address, is the address of a node as defined by its LAN or WAN. Physical None Logical Port 10 / 65In which network topology, devices are connected through the hub? Star topology Ring topology Bus topology None of the above 11 / 65The session, presentation and application layers are the ________ support layers. None of the option network user both network and uers 12 / 65Which protocol layer uses the protocols are WWW, HTTP, FTP, SMTP, e-mail, etc. Application Layer Protocol Internet Layer Protocol None of these Transport Layer Protocol 13 / 65Which is not unguided media? Radio wave Microwave Infrared Fiber optic 14 / 65Which of the following is not a guided data communication media? Twisted pair Satellite Coaxial cable Fiber optic 15 / 65Which one is an example of bound media Microwave transmission Laser transmission Infrared transmission Fiber optic 16 / 65Frequency of failure and network recovery time after a failure are measures of the ________ of a network. reliability feasibility performance security 17 / 65The seven-layer _______ model provides guidelines for the development of universally compatible networking protocols. OSI IEEE ISO None 18 / 65Devices may be arranged in a _______ topology. Bus Ring All of the options are correct Mesh 19 / 65………….. is the technology that connects the machines and people within a site in a small area. WAN LAN None of these MAN 20 / 65____________ is a network that connect sites that are in diverse locations. WAN MAN None of these LAN 21 / 65The ________ layer is responsible for delivering data units from one station to the next without errors. network transport data link physical 22 / 65What is the basic characteristic of WAN? Complex and Mostly Public Simple and Mostly Private Complex and Mostly Private Simple and Mostly Public 23 / 65Which is not Communication Media? Wire Satellite Microwave NIC 24 / 65Modem converts....... None of the options are correct Sound into digital Digital signal into sound Sound signal to video 25 / 65In the OSI model, encryption and decryption are functions of the_________layer. session transport application presentation 26 / 65An unauthorized user is a network _______ issue. security performance All of the above reliability 27 / 65The physical, data link and network layers are the __________ support layers. both network and uers None of the option network user 28 / 65The _____ layer enables the user to access the network Data link Application Transport Physical 29 / 65In client server network architecture, which statement is not true? Network controlling and management is easier. Data traffic is very high because of broad architecture Secured and reliable network architecture It is less expensive architecture 30 / 65_________ is a collection of many separate networks. A LAN An Internet None of these A WAN 31 / 65What does MAC stands for? Mandatory Access Control Media Accesses Control Medic Access Certificate Micro Access Control 32 / 65The _____ layer establishes, maintains, and synchronizes the interaction between communication devices Data link Physical Transport Session 33 / 65What is the correct order of OSI reference model of a computer network from botttom to top? physical, datalink, network, transport, presentation, session, and application physical, datalink, network, transport, session, application and presentation physical, datalink, transport, network, session, presentation and application physical, datalink, network, transport, session, presentation and application 34 / 65E-mail is a/an......... None of the above Organization, which controls the Internet protocol to access the Internet service of Internet 35 / 65In a digital data transmission of computer networking, what is Mbps? Mega Bands Per Second Media Bits Per Second Mega Bits Per Second Mega Bytes Per Second 36 / 65Why was the OSI model developed? The rate of data transfer was increasing exponentially Standards were needed to allow any two systems to communicate manufacturers disliked the TCP/IP protocol suite None of the above 37 / 65Which is not an Internet service? e-mail e-fax e-telephone e-commerce 38 / 65Which refers to the communication media? Satellite All of the given options UTP cable Fiber optic cable 39 / 65In a _______ connection, more than two devices can share a single link. Point-to-point Primary Multipoint Secondary 40 / 65A_________________ is a set of rules that governs data communication. portocol standard None of these Forum 41 / 65The OSI model consists of _______ layers. five eight six seven 42 / 65Which topology is more reliable and secured for a LAN? Ring Mesh Bus Star 43 / 65Each computer on the Internet has a unique numeric address called a/an... web address Network binding Domain address IP address 44 / 65What is the maximum length of typical type of LAN? 3 KM 1 KM 100KM 10 KM 45 / 65__________is a network that covers geographic areas that are larger, such as districts or cities. None of these MAN WAN LAN 46 / 65Communication between a computer and a keyboard involves ________ transmission. automatic half-duplex full-duplex simplex 47 / 65The _____ layer ensures interoperability between communicating devices trhough transformation of data into mutually agreed upon format. Transport Session Presentation Data link 48 / 65The _________ layer coordinates the functions required to transmit a bit stream over a physical medium. data link network transport physical 49 / 65A computer network permits sharing of ...... Both Resources And Information Resources Information None of these 50 / 65IPv6 has ________ -bit address. 128 32 Variable 64 51 / 65The ________ is the physical path over which a message travels. medium protocol signal None of these 52 / 65The information to be communicated in a data communications system is the __________ message medium transmission protocol 53 / 65Select the perfect order of dada communication system or model. Source, Encoder, Channel, Transmitter, Receiver, Decoder and Sink Source, Encoder, Transmitter, Receiver, Channel, Decoder and Sink Source, Sink, Encoder, Decoder, Transmitter, Receiver and Channel Source, Encoder, Transmitter, Channel, Receiver, Decoder and Sink 54 / 65In which communication media, the data transfer rate is high? Co-axial cable Twisted pair Microwave Fiber optics 55 / 65Which of the following is not a protocol? FTP NOS TCP/IP POP 56 / 65In …….. Network Topology nodes are connected in a single wire Star All Bus Mesh 57 / 65Which one is not network topology? Ring Client Server BUS Star 58 / 65Give an example of full duplex mode of data communication. Television Internet Walkie-talkie FM Radio 59 / 65Which of the following is a remote login service? Telnet FTP All of the above Video conference 60 / 65Which is not a guided media? Satellite STP Cable UTP Cable Fiber Optic 61 / 65The_________ layer is responsible for moving frames from node to the next. data link physical transport None of these 62 / 65Which is not related to Internet? UPS WWW TCP/IP ISP 63 / 65Which is web browser software? Internet explorer Windows NT All of the options Windows 2007 64 / 65The________ layer is responsible for the delivery of message from one process to another. data link transport physical none of these 65 / 65Which 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. Computer resources such as hardware, software, data can be shared in a Network. Communication has become faster, reliable but expensive for data communications. Your score isThe average score is 0% 0% Restart quiz Post Views: 1,685