LIST OF ATTEMPTED QUESTIONS AND ANSWERS

Match The FollowingCorrect Answer Your Answer

Fast Ethernet Autonegotiation No need of CSMA/CD

Bridged Ethernet Raising BW and separate collision N-port switch and divided collision by N

Switched Ethernet N-port switch and divided collision by N10 Mbps

Full-duplex Ethernet No need of CSMA/CD 1000 Mbps

Multiple Choice Single AnswerThe network identification in an IP address is called as :-Correct Answer NetidYour Answer Netid

Select The BlankGigabit Ethernet operates on ________ data rate.Correct Answer 1000 MbpsYour Answer 1000 Mbps

Select The BlankIn ATM, ________ is designed to support a data stream that has a constant bit rate.Correct Answer AAL1Your Answer AAL3/4

Multiple Choice Single AnswerARQ stands for :-Correct Answer Automatic repeat requestYour Answer Automatic retransmission request

Multiple Choice Single AnswerTopology requires a central controller or hub.Correct Answer StarYour Answer Star

Multiple Choice Single AnswerTCP offers :-Correct Answer Full duplex serviceYour Answer Full duplex service

Multiple Choice Single AnswerWhich of the following connects LAN to another of the same type?Correct Answer A network bridgeYour Answer A network gateway

True/FalseIPv6 is also known as IPng.

Correct Answer TrueYour Answer True

Multiple Choice Single AnswerLayer one of the OSI model is :-Correct Answer Physical layerYour Answer Physical layer

True/FalseData rate of traditional Ethernet is 100Mbps.Correct Answer FalseYour Answer False

True/FalseAuto negotiation is a feature of fast Ethernet.Correct Answer TrueYour Answer True

True/FalseThe 5-7 digits are known as the country code of the Network User Address (NUA)Correct Answer FalseYour Answer True

True/FalseGMII is a physical component.Correct Answer FalseYour Answer False

Multiple Choice Single AnswerWhich layer in the Ethernet standard communicates with the OSI network layer?Correct Answer LLCYour Answer Protocol

Select The BlankIn HDLC ________ are used for flow and error control where piggy backing is impossible.Correct Answer S - frameYour Answer Frame check sequence

Select The BlankThe Frame Relay committed Information Rate represents________.Correct Answer The minimum data rate on the networkYour Answer The maximum data rate on the network

Multiple Choice Multiple AnswerTransmission media is characterized by :-Correct Answer Throughput , Propagation speed , Propagation time Your Answer Propagation speed , Propagation time , Received signal

Multiple Choice Single AnswerIn a access method a station that has token is :-

Correct Answer Token passingYour Answer Token passing

True/FalseApplication programs as well as all protocol software from the internet layer upward use only IP address.Correct Answer TrueYour Answer True

True/FalseModulation is the process of sending a file from one computer to another computer.Correct Answer FalseYour Answer False

Multiple Choice Single AnswerIn which method a station reserves a slot for data by setting its flag in a frame?Correct Answer ReservationYour Answer Polling Access

Multiple Choice Single AnswerThe main advantage of ISO model is that :-Correct Answer It allows integration of software and hardwareYour Answer It fits in well in network

Multiple Choice Multiple AnswerAAL sub layers are :-tCorrect Answer Convergence sub layer (CS) , Segmentation and reassembly (SAR) Your Answer Data link layer (DLC) , Media access control (MAC)

Multiple Choice Multiple AnswerIPCP defines three categories of seven packets :-Correct Answer Configure , Terminate , Code Your Answer Configure , Terminate , Code

Select The BlankThe fast Ethernet has ________ data rate.Correct Answer 100 MbpsYour Answer 100 Mbps

Select The BlankData link layer is responsible for transmitting ________ from one node to other.Correct Answer FramesYour Answer Frames

Select The BlankNetwork layer is responsible for delivery of ________ from one source to other.Correct Answer PacketsYour Answer Packets

Match The FollowingCorrect Answer Your Answer

Multiplexing FDM Modem

Bounded Media Fiber optic cable FDM

Wireless Transmission Microwave Microwave

Highest Attention UTP cable UTP cable

Multiple Choice Multiple AnswerOperational features of Ethernet are:-Correct Answer 10 mbps rate , CSMA/CD protocol , 500 meters length Your Answer 10 mbps rate , CSMA/CD protocol , Star topology

Multiple Choice Single AnswerThe main functional difference between circuit switched digital networks (CSDN) and packet-switched digital network(PSDN)isCorrect Answer That a CSDN establishes a permanent connection between two nodes where PSDN uses a virtual circuitYour Answer That a CSDN establishes a permanent connection between two nodes where PSDN uses a virtual circuit

Multiple Choice Single AnswerFrame Relay operates at :-Correct Answer Physical and data link layerYour Answer Data Link layer

Multiple Choice Multiple AnswerHDLC supports :-Correct Answer Half duplex communication , Full duplex communication , ARQ mechanisms Your Answer Half duplex communication , ARQ mechanisms , Pipelining

Select The BlankThe ________ layer is responsible for host-to-host delivery.Correct Answer NetworkYour Answer Data link

True/FalseFrame Relay is a virtual circuit network.Correct Answer TrueYour Answer False

True/FalseFor connecting several LANs, backbone networks are used.Correct Answer TrueYour Answer True

True/FalseThe session layer takes the communication service of

the transport layer and adds application -oriented functions.Correct Answer TrueYour Answer True

Multiple Choice Multiple AnswerThe physical path in ATM is :-Correct Answer Physical connection between two switches , Connection between an end point and a switch , Used for data transfer Your Answer Physical connection between two switches , Used to connect switches , Used for data transfer

Select The BlankIn Base T4 Ethernet ________ line coding is used.Correct Answer 8B /6TYour Answer 8B /10B

Multiple Choice Multiple AnswerChannelization protocols are :-Correct Answer TDMA , CDMA , FDMA Your Answer CDMA , CSMA/CD protocol

Select The BlankError control is________.Correct Answer Error detection and correctionYour Answer Error detection and correction

Multiple Choice Multiple AnswerThe Types of error that Internet Control Message Protocol (ICMP) can handle are :-Correct Answer Destination unreachable , Source quench , Redirection Your Answer Destination unreachable , Redirection

Multiple Choice Multiple AnswerThe functions of ATM layers are :-Correct Answer Routing , Switching , Multiplexing Your Answer Routing , Switching , Bridging

Multiple Choice Single AnswerBase band is :-Correct Answer Transmission of signals without modulationYour Answer Transmission of signals without modulation

Multiple Choice Single AnswerThe basic Ethernet design does not provide :-Correct Answer Automatic retransmission of a messageYour Answer Multiple virtual networks

Multiple Choice Multiple AnswerIn digital data transmission :-Correct Answer Baud rate is equal to bit rate , Baud rate is always smaller than the bit rate Your Answer Baud rate is equal to bit rate

Select The BlankIn X.25 network layer protocol, the data

contains________.Correct Answer One octet of header plus dataYour Answer Two octet of header plus data

LIST OF ATTEMPTED QUESTIONS AND ANSWERS

Multiple Choice Multiple AnswerA data terminal serves as :-Correct Answer Effecter , Sensor Your Answer Transmitter , Modulator

Multiple Choice Single AnswerTopology requires a multipoint connection called :-Correct Answer MeshYour Answer Star

True/FalseThe 5-7 digits are known as the country code of the Network User Address (NUA)Correct Answer FalseYour Answer False

Multiple Choice Single AnswerAn error detecting code which is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as :-Correct Answer Cyclic Redundancy checkYour Answer Error rate

True/FalseThe application layer of a network consists of software being run on the computer connected to the network.Correct Answer TrueYour Answer True

Select The BlankFlow control ________.Correct Answer Prevents overflow at receiverYour Answer Prevents overflow at transmitter

Multiple Choice Single AnswerFiber Optic Ethernet is also known as:-Correct Answer 10BASEFYour Answer 10BASET

Select The BlankThe ________ Timer is used in termination phase.Correct Answer Time waitedYour Answer Time waited

Select The BlankIn Base T4 Ethernet ________ line coding is used.Correct Answer 8B /6TYour Answer 8B /10B

Multiple Choice Single AnswerWhich of the following device copies electrical signals from one Ethernet to another?Correct Answer RepeaterYour Answer Passive hub

Multiple Choice Single AnswerWhich of the following connects LAN to a WAN?Correct Answer A network gatewayYour Answer A network gateway

Multiple Choice Single AnswerWhich of the following communications lines is best suited to interactive processing applications?Correct Answer Full-duplex linesYour Answer Full-duplex lines

Multiple Choice Multiple AnswerA spanning tree bridge :-Correct Answer Has no loops , Creates logical topology , Uses BPDU Your Answer Has no loops , Uses BPDU , Forward every frame

Multiple Choice Multiple AnswerIn fast Ethernet functions of autonegotiation are :-Correct Answer To allow incompatible devices to one other , To allow one device to have multiple capability , To allow station to check hub's capability Your Answer To allow incompatible devices to one other , To allow one device to have multiple capability

True/FalseThe simultaneous transmission of data to a number of stations is known as broadcast.Correct Answer TrueYour Answer True

True/FalseThe physical layer of a network controls error detection and correction.Correct Answer FalseYour Answer False

Multiple Choice Single AnswerWhich organisation has developed much of the original standards?Correct Answer IEEEYour Answer IEEE

True/FalseUDP is a connectionless, unreliable protocol.Correct Answer TrueYour Answer False

Multiple Choice Multiple AnswerTwisted pair cables are preferred when :-

Correct Answer The LAN is under cost constraint , Relatively easy installation is need Your Answer The LAN is under cost constraint , Relatively easy installation is need , Network is small

Match The FollowingCorrect Answer Your Answer

Communication system Hardware, software, and data transferal linksHardware, software, and data transferal links

Digital 0 and 1 0 and 1

FDM Band width of the medium Band width of the medium

Start and stop bits Asynchronous transmission Asynchronous transmission

Multiple Choice Single AnswerPeer to peer communication involves:-Correct Answer Computers to share information over a networkYour Answer Computers to share information over a network

Multiple Choice Single AnswerTwisted -pair Ethernet is also known as :-Correct Answer 10BASETYour Answer 10 BASE2

Multiple Choice Multiple AnswerBroadcasting methods are :-Correct Answer Flooding , Multidestination routing , Reverse path forwarding Your Answer Random routing , Multidestination routing , Reverse path forwarding

Match The FollowingCorrect Answer Your Answer

Full - duplex Simultaneous transmission in both directionsSimultaneous transmission in both directions

Modem Modulator Demodulator Modulator Demodulator

Bit Binary digit 0 and 1

Synchronous communication efficiency High High

Select The BlankIn ALOHA ________ is the downloading carrier frequency.Correct Answer 413 MHzYour Answer 407 MHz

Multiple Choice Single Answer

Bandlimited signal is :-Correct Answer A signal all of whose energy is contained within a finite frequency rangeYour Answer The simultaneous transmission of data to a number of stations

Multiple Choice Single AnswerIn the TCP/IP suite the protocol used for physical addressing of the next hop :-Correct Answer ARPYour Answer ARP

Multiple Choice Multiple AnswerCategories of traditional Ethernet are :-Correct Answer 10Base 5 , 10Base 2 , 10Base T Your Answer 10Base 5 , 10Base 2 , 10Base T

Multiple Choice Multiple AnswerThe functions of ATM layers are :-Correct Answer Routing , Switching , Multiplexing Your Answer Routing , Switching , Multiplexing

True/FalseThe main purpose of a data link content monitor detect problems in protocols.Correct Answer TrueYour Answer True

Multiple Choice Single AnswerFrame Relay operates at :-Correct Answer Physical and data link layerYour Answer Physical and data link layer

Multiple Choice Single AnswerThe actual transmission and reception of data on an RS - 232 interface occurs :-Correct Answer On pins 2 and 3Your Answer On pins 2 and 3

Select The BlankThe ________ field is used to order packets of a message.Correct Answer Sequence numberYour Answer Checksum

Select The BlankIn fast Ethernet autonegotiation allows ________ negotiation.Correct Answer Data rateYour Answer Data rate

Multiple Choice Multiple AnswerError correction and detection in OSI model is done by :-Correct Answer Data link Layer , Transport Layer Your Answer Physical layer , Data link Layer

Multiple Choice Multiple AnswerLink control protocol (LCP) is responsible for :-Correct Answer Establishing , Maintaining , Configuring Your Answer Establishing , Maintaining , Configuring

Multiple Choice Multiple AnswerX.25 uses :-Correct Answer Packet assembler/disassembler , Packet switched network , Access lines to public data networks Your Answer Packet assembler/disassembler , Packet switched network , Access lines to public data networks

Select The BlankThe full abbreviation for AAL is________.Correct Answer Application Adaptation layerYour Answer Application Adaptation layer

Select The BlankThe ________ timer is needed to handle the zero window size.Correct Answer PersistenceYour Answer Keep alive

Select The BlankFrame Relay is not used for ________ due to delays in transmission of variable frame sizes.Correct Answer Real-time videoYour Answer Real-time video

True/FalseDemodulation is the process of converting digital signals to analog signals.Correct Answer FalseYour Answer False

True/FalseA device that can convert digital signals to analog signals is a packet.Correct Answer FalseYour Answer False

Multiple Choice Single AnswerA hub is actually :-Correct Answer A multiport repeaterYour Answer A multiport repeater

Multiple Choice Single AnswerThe cost assigned for passage of a packet through a network is called :-Correct Answer MetricYour Answer Metric

Multiple Choice Multiple AnswerPAP packets include :-Correct Answer Authenticate request , Authenticate ack ,

Authenticate nak Your Answer Authenticate request , Authenticate ack , Authenticate nak

Select The BlankIn 100BaseX ________ bits of data is received from network interface card.Correct Answer 8Your Answer 16

Select The BlankIn digital data transmission________.Correct Answer Baud rate is equal to bit rateYour Answer Baud rate is equal to bit rate