Computer Networks - I

Question 1Assertion. There is a difference between a standalone computer and a computer as a network node.Reason. A standalone computer needs a...

Question 2Assertion. A server is a computer but not every computer is a server.Reason. A computer having the capabilities to serve the requests of...

Question 3Assertion. On a computer network the users work on network nodes only.Reason. A server cannot act as a network node.

Question 4Assertion. A local telephone network is an example of circuit switched network.Reason. In circuit switching, a complete physical connection...

Question 5Assertion. In non-circuit switching techniques, the message may take different routes at different times.Reason. The message switching and...

Question 6Assertion. The tree topology is a hybrid topology created through a combination of Bus and Star topologies.Reason. In tree topologies, at a...

Question 7Assertion. The bus and star topologies are widely used topologies.Reason. Bus topology is the simplest topology and star topology is more...

Question 1Write two advantages and disadvantages of networks.

Question 2What is ARPAnet ? What is NSFnet ?

Question 3What do you understand by InterSpace ?

Question 4What is a communication channel ? Name the basic types of communication channels available.

Question 5Define baud, bps and Bps. How are these interlinked ?

Question 6What are the various types of networks?

Question 7What is the difference between LAN and WAN?

Question 8(i)Write two advantages and disadvan­tages of optical fibres.

Question 8(ii)Write two advantages and disadvan­tages of satellites.

Question 8(iii)Write two advantages and disadvan­tages of microwaves.

Question 9Write two disadvantages of twisted pair cables.

Question 10Write an advantage and a disadvantage of using coaxial fiber cable.

Question 11What is the difference between LAN and PAN?

Question 1What is meant by topology ? Name some popular topologies.

Question 2What are the factors that must be considered before making a choice for the topology ?

Question 3What are the similarities and diffe­rences between bus and tree topologies ?

Question 4What are the limitations of star topology ?

Question 5When do you think, ring topology becomes the best choice for a network ?

Question 6Write the two advantages and two dis­advantages of bus topology in network.

Question 7(i)Give two advantages and two disadvantages of Mesh topology.

Question 7(ii)Give two advantages and two disadvantages of tree topology.

Question 7(iii)Give two advantages and two disadvantages of bus topology.

Question 1What are the types of addresses that play role in identifying a node on a network ?

Question 2What is the name of:(i) the logical address,(ii) the physical address?

Question 3What is the size of a MAC address?

Question 4What is the structure of a MAC address?

Question 5What are two types of IP addresses and what are their sizes?

Question 1A computer network that spans a relatively large geographical area is called WAN.

Question 2WAN stands for Wide Area Network.

Question 3Wired networks' communication media is called guided media.

Question 4Wireless networks' communication media is called unguided media.

Question 5A network of networks is known as internet.

Question 6In a network, a machine is identified by unique address called IP address.

Question 7The physical address assigned by NIC manufacturer is called MAC address.

Question 8A MAC address consumes 6 bytes or 48 bits.

Question 9A network with a dedicated server is called a client/server network.

Question 10A computer, part of a computer network is called a node/host.

Question 11A network having a span within a building is called a LAN.

Question 12Computers connected by a network across different cities is an example of MAN.

Question 13The hub is a central connection point where all network cables are concentrated.

Question 14The bus topology has a central line and all nodes are connected to it.

Question 15The star topology has a central controller.

Question 16The tree topology is said to be a combination of star and bus topologies.

Question 17In mesh topology, there exists multiple paths between any two nodes of the network.

Question 18The PAN is a small network created by linking many personal devices.

Question 19The communication media having physical cables are collectively known as guided media.

Question 20The communication media that uses atmosphere for information transfer and no physical cables, are collectively known as unguided media.

Question 21The bleeding of a signal from one wire to another in a twisted pair cable, is known as cross talk.

Question 22High bandwidth channels are called broad band channels.

Question 23Low bandwidth channels are called narrow band channels.

Question 24Satellites have multiple, independent reception and transmission devices known as transponders.

Question 1Internet is a network of networks. How did it come into existence ? How does it function ?

Question 2Discuss various types of networks. Can you imagine the relationship of a LAN with a WAN ? What is it ? Discuss.

Question 3What is switching ? Discuss various switching technologies.

Question 4What is communication media ? Discuss different types of communication media used in networks.

Question 5Discuss various Guided media.

Question 6Discuss various Unguided media.

Question 7What are different types of networks based on roles of computers ?

Question 8What are different types of networks based on geographical spread ?

Question 9What are topologies ? Why are they important ? Discuss different topologies and advantages/disadvantages they offer.

Question 10Write a note on the functioning of the Internet.

Question 1Two devices are in network ifa process in one device is able to exchange information with a process in another devicea process is running...

Question 2What is a standalone computer ?A computer that is not connected to a networkA computer that is being used as a serverA computer that does...

Question 3Which of the following statements about a network is FALSE ?Resources such as printers can be sharedViruses can spread to other computers...

Question 4Central Computer which is powerful than other computers in the network is called as ...............ClientServerHubSwitch

Question 5What are some reasons behind using a network over stand-alone computers ?Increased security - user access to the network is controlledData...

Question 6Network in which every computer is capable of playing the role of a client, or a server or both at same time is calledpeer-to-peer...

Question 7What is a server in a computer network ?Someone who manages the networkThe name for a large number of computer cablesA powerful computer...

Question 8In peer-to-peer network, each computer in a network is referred asserverclientpeersender

Question 9Which of these statements is/are TRUE about a LAN ?A LAN connects computers in a small area such as an officeA modem is needed to connect a...

Question 10Which of the following networks is LEAST likely to be a WAN ?The InternetA school networkA network of ATMsA network of lab computers of a...

Question 11Pick from the situations below where you would pick WLAN over a LANDevices to be linked are mobile devices like laptops and smartphones...

Question 12Pick from the situations below where you would pick LAN over a WLANDevices to be linked are mobile devices like laptops and smartphones...

Question 13Pick from the situations below where you would pick PAN over a WLANDevices to be linked are mobile devices like laptops and smartphones...

Question 14Which switching method offers a dedicated transmission channel ?Packet switchingCircuit switchingMessage switchingNone of these

Question 15The packets in ............... are independently sent, meaning that they can take different paths through the network to reach their...

Question 16A local telephone network is an example of a ............... network.Packet switchedCircuit switchedMessage switchedAll of these

Question 17Which transmission media is capable of having a much higher bandwidth (data capacity) ?CoaxialTwisted pair cableUntwisted cableFibre optic

Question 18Which type of transmission media is the least expensive to manufacture?CoaxialTwisted pair cableCAT cableFibre optic

Question 19Which of these components is internal to a computer and is required to connect the computer to a network?Wireless Access PointNetwork...

Question 20Which of the following is the fastest media of data transfer ?Co-axial CableUntwisted WireTelephone LinesFibre Optic

Question 21What factors should be considered when selecting the appropriate cable for connecting a PC to a network ? (Choose two)type of system...

Question 22What are two advantages of using UTP cable in a networking environment? (Choose two)is stiffer than STPis less expensive than fiberis...

Question 23In fiber optics, the signal is ............... waves.lightradioinfraredvery low frequency

Question 24Which of the following is not a guided medium ?twisted-pair cablecoaxial cablefiber-optic cableRadio-waves

Question 25Radio-waves, microwaves and infrared waves are types ofwireless transmissionguided transmissionwired transmissionunguided transmission

Question 26Twisted-pair, Coaxial and Fiber optic are types ofwireless transmissionguided transmissionwired transmissionunguided transmission

Question 27What are two advantages of using fiber-optic cabling instead of UTP? (Choose two.)lower costeasier to installallows longer distancesless...

Question 28This is a technical term that describes the layout of connections in a network.Network TopologyNetwork serverNetwork NodeSwitching...

Question 29Which network topology requires a central controller or hub?StarBusNoneTree

Question 30Which topology requires a multipoint connection on a single cable?StarBusNoneTree

Question 31Which of the following topologies contains a backbone cable running through the whole length of the network?StarBusNoneTree

Question 32Which of the following devices can be used at the centre of a star topology?RouterRepeaterModemHub

Question 33If a computer connected to a star topology fails, the entire network will ...............also failwork unaffectedlyonly server will...

Question 34A combination of bus and star topologies is called a ............... topology.CombinationHybridMeshTree

Question 35Internet is an example of ............... topology.StarBusBustarBus

Question 36Which type of network needs 'terminators' to function correctly ?BusRingStarMesh

Question 37............... topology uses hubs or switches as a central point of connection :BusStarRingMesh

Question 1What is a network ? What are its goals and applications ?

Question 2Briefly explain how Internet evolved.

Question 3Write a short note on ARPAnet.

Question 4How does Internet work ?

Question 5Write a short note on InterSpace.

Question 6What is a network ? What are necessary network elements ?

Question 7How is circuit switching different from message switching ?

Question 8How does transmission take place across networks?

Question 9What are communication channels ? Discuss various communication channels available for networks.

Question 10(i)Write some advantages and disadvantages of optical fibres.

Question 10(ii)Write some advantages and disadvantages of coaxial cables.

Question 10(iii)Write some advantages and disadvantages of twisted pair cables.

Question 10(iv)Write some advantages and disadvantages of radio waves.

Question 10(v)Write some advantages and disadvantages of micro waves.

Question 10(vi)Write some advantages and disadvantages of satellites.

Question 11What are types of twisted pair cables ?

Question 12What are types of coaxial cables ?

Question 13What are the types of fiber optic cables ?

Question 14What is bandwidth ? How is it measured ?

Question 15What do you understand by data transfer rates ?

Question 16In initial years, a modem providing a data rates of 56 kbps for downloading and 14.4 kbps for uploading was considered a good modem. How...

Question 17Discuss and compare various types of networks.

Question 18Identify the network type from the following characteristics :used in personal space of a personcovers range of 10-15 metresuses...

Question 19Identify the network type from the following characteristics :no outside connectioninterconnected devices within a factory or a...

Question 20Identify the network type :Mostly used in homesAll computers are connected with each otherData exchange without any dedicated...

Question 21Identify the network type :Big area geographically (countries/continents)Result of interconnected networks

Question 22Explain various mostly used topologies.

Question 23Discuss the factors that govern the selection of a topology for a network.

Question 24(i)Compare and contrast Star and Bus topologies.

Question 24(ii)Compare and contrast Star and Tree topologies.

Question 24(iii)Compare and contrast Bus and Ring topologies.

Question 1A LAN is connected to large geographical area.

Question 2A client is the computer that asks for the action in a network.

Question 3A computer is identified by 64 bit IP address.

Question 4Every object on the Internet has a unique URL.

Question 5A stand alone computer may also be referred to as host.

Question 6Big networks can be of peer-to-peer types.

Question 7MAC address is a 48 bit address.

Question 8LAN is the biggest network geographically.

Question 9LAN is the smallest network geographically.

Question 10PAN is the smallest network geographically.

Question 11The Internet is an example of WAN.

Question 12The bus topology is the simplest topology.

Question 13The star topology ensures that the network will work even when a node fails.

Question 14Out of LAN, MAN and PAN, the smallest network is LAN.

Question 15A network having a dedicated server is a peer-to-peer network.

Question 16A network having a dedicated server is known as Master/Slave network.

Question 17The first network was ARPANET.

Question 18Initially the Internet was formed by interconnecting ARPANET, NSFNet and other university networks.

Question 19Single mode and multimode are two types of coaxial cables.

Question 20Thicknet and Thinnet are two types of coaxial cables.

Question 21GTP and STP are two types of fiber optic cables.

Question 22Single mode and Multimode are fiber optic cables.

Question 23UTP and STP are twisted pair cables.