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MIS 589 Week 3 Quiz
Download answer at http://www.examtutorials.com/course/mis-589-week-3-quiz/
<div> 1.Question :(TCO B) Which of the following is true with respect to the data link layer?Student Answer:It accepts streams of bits from the application layerIt is responsible for getting a message from one computer to anotherIt accepts messages from the physical layerIt performs routing functions2.Question :(TCO B) You are working to resolve a problem with communication to an office in your building. The Sr. Network Engineer asks you to go get a mini-switch or repeater so that the source of the error can be resolved. What was the likely source of this error?Student Answer:EchoJitterCrosstalkAttenuation3.Question :(TCO B) This error checking scheme adds 8, 16, 24, or 32 bits to the message.Student Answer:Parity CheckingCyclical Redundancy CheckChecksumStop-and-Wait ARQ4.Question :(TCO B) This type of transmission is typically used on a point-to-point full-duplex circuits.Student Answer:synchronous transmissionsHigh-level data link controlasynchronous transmissionsContinuous ARQ 5.Question :(TCO B) Your new position requires that you maintain a Token Ring network that includes several IBM mainframes. What type of access control would this network most likely use?Student Answer:Contention basedMixed ModeRelative performance basedControlled based 6.Question :(TCO B) You are working with a co-worker over the phone to connect a router at your location in New York to their network in San Francisco. After hours of troubleshooting the WAN protocol configured on the routers you find that the root of the problem is that he has a Cisco router and you have a Nortel router. Which WAN protocol are you most likely configuring in this scenario?Student Answer:HDLCSDLCPPPEthernet 7.Question :(TCO B) __________ is not a function of a data link protocol.Student Answer:Media access controlMessage delineationAmplitude shift keyingError Control8.Question :(TCO B) The key to selecting the best access control technique is to _______________.Student Answer:whether you are using mainframes or notselecting the appropriate cable mediafind the crossover point between controlled and contentiontype of LAN 9.Question :(TCO B) In general, controlled approaches:Student Answer:work better than contention approaches for small networks that have low usagework better than contention approaches for large networks that have high usagework better than contention approaches for all sizes of networksdo not require a host, server, or active monitor to assign media access control 10.Question :(TCO B) With contention:Student Answer:computers wait until the circuit is free before they send datathe front end processor must wait for a response from the polled client or terminalone computer starts the poll and passes it to the next computer on the multipoint circuitthere is never a chance of a “collision” or two computers trying to send data at the same time</div>
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