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Networking MC

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zzz1. The Physical Layer of the OSI model is responsible for: a) establishing, maintaining and terminating connections across the intervening network b) reliable transfer of information across the physical link c) data units are delivered error free, in sequence, with no losses or duplications d) all of the above e) none of the above 2. An example of an application layer protocol is a) HTTP c) UDP e) None of the above b) HDLC d) TCP 3.Techniques for transmitting a digital signal over an analogue medium include: a) Frequency c) Amplitude e) None of the above b) Phase d) All of the above 4.A paradigm for electronic communications where a message is broken up into blocks of data of limited size which are then transmitted one …show more content…

Answer digital guided analog idle Question 13 1. In a ________ configuration, the computer needs only a single I/O port and a single transmission line, which saves costs. Answer code rate half duplex point to point multipoint Question 14 1. Correction of errors using an error detecting code requires that block of data to be ________. Answer deleted retransmitted streamed skipped over Question 15 1. If the topology on a transmission medium includes only two stations, the link is ________. Answer half duplex multipoint point to point full duplex Data encoding Question 1 1. The simplest form of digital encoding of ________ is to assign one voltage level to binary- one and another to binary-zero. Answer digital data carrier data analog data AM data Question 2 1. Analog data in electrical form can be transmitted as ________ signals easily and cheaply with voice transmission over voice grade lines. Answer modulating carrier baseband broadband Question 3 1. If digital signaling elements all have the same algebraic sign, all positive or all negative, then the signal is ________. Answer unipolar baseband polar differential Question 4 1. In ________, the two binary values are represented by two different

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