CS610 - Computer Network Quiz No.2 Dated Dec 03, 2012 Routing table is used to keep the information about……………. Destination Medium of transmission Routers used in network All of the above Which of the following statement is true regarding Jitter? Jitter is used for variance in transmission delays. Jitter can occur when a packet is delayed. Jitter is significance for voice, video and data. All of the above The maximum cable length of a LAN is _____ Fixed Unlimited Fixed and Unlimited in different conditions None of these Jitter is significance for ------------------ Voice Video Data All of above The routing table contains information about the ………………immediately around it. topology of the network destination both of the above none of the above Which of the following is called virtual channel? Connection in VCI Connection in ATM Connection in virtual circuit None of the above If a bridge builds up address list for each segment that consists of physical addresses of the computer attached to that segment. So, when the bridge boots, the size of list will be__ for each segment. 3 2 1 0 Asynchronous Transfer Mode uses small fixed size cell. Each cell consist of ----------- octets. 55 53 52 51 Which of the following statement is true regarding ATM? ATM is a single technology that is designed to meet the goals of both LANs and WANs. ATM uses the concept of connection-oriented networking. Both (a) and (b) None of the above Frame forwarding of a bridge is based on _________. Select correct option: Layer 3 source address Layer 3 destination address Layer 2 destination address Layer 2 Source address The process of forwarding the packets of information is called……………. Routing Switching Communication None of the above Which one of the following is a property of static routing? It is inflexible It is done at boot time It has low network overload All of the above According to a bridges Performance, if both the sauces and destination are on the same segment It forward the frame to the other segment It does not forward the frame to the other segment It does not forward the frame to the same segment It forwards the frame to every other segment What will be the bandwidth rate for future (possibly 10 Gigabyte) Ethernet? 500 MHz 550 MHz 600 MHz 650 MHz Asynchronous Transfer Mode uses the concept of ………….. Connection-less network Connection-oriented network The fiber-modem converts data into _________ then transmits cover the optional fiber Pulses of light Electrons Electromagnetic signals None of these How many methods exist for computing routing table? 5 4 3 2 To span long distance or many computers, networks must replace shared medium with ……….. Segment transformation Fiber optics Packet switches None of the above Which of the following statement is true regarding Distance-vector routing? It is very simple to implement. Packet switch updates own routing table first It is used in RIP All of the above What will be the bandwidth rate for 1000Base-T Gigabyte or ATM? 100 MHz 150 MHz 200 MHz 250 MHz CBR stands for……………. Constant Byte Rate Constant Bit Rate Connection break Recovery None of the above The routing table in interior and exterior switches has which one of the following? It should have next hop for each possible destination The next hop in table must be on shortest path to destination Both (a) and (b) None of the above Which one of the following is a method for computing routing table information? Manual entry Static routing Boot time routing None of the above Which one of the following is the responsibility of Djikstra' algorithm? To compute the shortest path between two nodes To extract next hop information from path information To insert next hop information into routing table All of the above Routing table is used to keep the information about……………. Destination Medium of transmission Routers used in network All of the above Frame relay is…………………. Connection oriented service Connectionless service It is typically ranges from 5Mbps to 1000Mbps. None of the above Which of the following is not a guided medium? Twisted-pair cable Fiber-optic cable Atmosphere Coaxial cable Which of the following statement is wrong regarding PVC? PVC last as long as the customer pay the periodic fee for its use. Forwarding tables are automatically restored after power of equipment failure. Forwarding table entries for PVC's are dynamically configured. All of the above are wrong Which of the following statement is true regarding ATM? ATM is a single technology that is designed to meet the goals of both LANs and WANs. ATM uses the concept of connection-oriented networking. Both (a) and (b) None of the above Djikstra's algorithm is used to compute the………………. shortest path between two nodes number of nodes used in the network distance between different nodes none of the above If a link or a packet switch fails then which one of the following would possibly be happened? Link would be reestablished Request to change failed hardware would appear The packet switch will modify the tables None of the above The routing contains information about immediately around it Topology of the network Destination Both of the above None of the above SMDS is …………………… Connectionless service Connection oriented service Used for delivering blocks of data None of the above The process of forwarding the packets of information is called Routing Switching Communication None of the above The sharing of a medium and its link by two or more devices is called modulation encoding line discipline multiplexing Which multiplexing technique transmits analog signals? FDM TDM WDM (a) and (c) Which multiplexing technique transmits digital signals? FDM TDM WDM None of above Which multiplexing technique shifts each signal to a different carrier frequency? FDM TDM Both (a) and (b) None of above In synchronous TDM, for n signal sources of the same data rate, each frame contains _______ slots. n n+1 N-1 O to n Which multiplexing technique involves signals composed of light beams? FDM TDM WDM None of above _________ Utilization is the use of available bandwidth to achieve specific goals. Frequency Bandwidth Amplitude None of the above ________ can be achieved by using multiplexing; ______ can be achieved by using spreading. Efficiency; privacy and antijamming Privacy and antijamming; efficiency Privacy and efficiency; antijamming Efficiency and antijamming; privacy ________ is the set of techniques that allows the simultaneous transmission of multiple signals across a single data link. 1; n 1:1 n;1 n;n The word ______ refers to the portion of a _______ that carries a transmission. channel; link link; channel line; channel line; link ______ can be applied when the bandwidth of a link (in hertz) is greater than the combined bandwidths of the signals to be transmitted. TDM FDM Both (a) or (b) Neither (a) or (b) FSM is an _________technique. Analog Digital Either (a) or b) None of the above ____ is designed to use the high bandwidth capability of fiber-optic cable. FDM TDM WDM None of the above _____ is a digital multiplexing technique for combining several low-rate channels into one high-rate one. FDM TDM WDM None of the above ____ is designed to use the high bandwidth capability of fiber-optic cable. FDM TDM WDM None of the above ______ is an analog multiplexing technique to combine optical signals. FDM TDM WDM None of the above _____ is a digital process that allows several connections to share the high bandwidth of a link. FDM TDM WDM None of the above _____ is a digital multiplexing technique for combining several low-rate channels into one high-rate one. FDM TDM WDM None of the above Djikstra's algorithm is used to compute the………………. The routing table in interior and exterior switches has which one of the following? Which one of the following is the responsibility of Djikstra' algorithm To compute the shortest path between two nodes To extract next hop information from path information To extract next hop information from path information None of above What will be the bandwidth rate for short distance 10Base-T 16mhz 20mhz 100mhz 150mhz What will be the bandwidth rate for older, low-speed network, and analog telephones 16 20 24 30 How many methods exist for building routing table? 1 2 3 4 Which of the following statement is wrong regarding ATM? It is a single technology for voice, video and data it has low jitter and high capacity. it uses fixed size, small cells, 48 octet's data None of the above In Asynchronous Transfer Mode VPI/VCI fields indentify the cells Source Destination port@ none The physical addressing in a WAN is similar as in LAN in the way................ The data is transmitted in packets equivalent to frames. Each packet has a format with header. The packet header includes destination and source addresses. All of the above In Asynchronous Transfer Mode VPI/VCI fields indentify the cells-------------- Which one of the following is a method for computing routing table information? Manual entry Boot time routing Static routing None of the above All destinations on same switch have same Router Information Next hop None of the above Which of the following statement is wrong regarding ATM? It is a single technology for voice, video and data It has low jitter and high capacity. It uses fixed size, small cells, 48 octet's data None of the above Which one of the following is the responsibility of Djikstra' algorithm? To compute the shortest path between two nodes To extract next hop information from path information To insert next hop information into routing table All of the above Which of the following statement is true regarding Link-state routing? Network topology is separated from route computation. Each switch builds its own routing tables. Link-state routing uses Djikstra's algorithm. All of the above Jitter is significance for ------------------ Voice Video Data All of above The routing table contains information about the ………………immediately around it. topology of the network destination both of the above none of the above Which one of the following is a property of dynamic routing? Select correct option: It is inflexible It has low network overload It can work around network failure All of the above An exterior switch is one with which …………………. Select correct option: Computers are attached No computer is attached hubs are attached externally None of the above Which of the following statement regarding ATM is true? Select correct option: Connections in ATM are called virtual channels The VC is identified by a 24-bit value formed from the VPI Both (a) and (b) None of the above The fiber-modem coverts digital data into _______ then transmits over the optical fiber Select correct option: Pulses of light Electrons Electromagnetic signals None of these _______network topology is a bus but wiring topology is a star Select correct option: 10Base-T Ring 10Base-W Star Which of the following is not a guided medium? Select correct option: Twisted-pair cable Fiber-optic cable Atmosphere Coaxial cable A system with redundant bridges might have a problem with_______ in the system. Select correct option: Filters Spanning Trees Addressing Loop Repeaters are used when ______ communication is carries out Select correct option: Optical fiber Twisted Pair Copper wire All type of The mechanism of extending the optical fiber across several kilometers is very successful because delays on optical fiber are very _____ and bandwidth is very _____ Select correct option: Low, High High, Low High, High Low, Low To span long distances or many computers, networks must replace shared medium with............ Select correct option: segment transformation fiber optices packet switches None of the above Which one is incorrect statement? Select correct option: Hub wiring centralizes electronics and connections. It makes management easier No Transceiver allows computers to be powered off or disconnected from network without distracting other communication Transceiver may be located in an inconvenient place in any situation None of these An interior switch is one with which …………………. Select correct option: Computers are attached No computer is attached Computers are attached internally None of the above
shortest path between two nodes
number of nodes used in the network
distance between different nodes
none of the above
None of the above
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