With each visit of this Data Communication and Networking online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.
Test Instructions Question type Randomized MCQs.Changes every time you visit the test Total Number of Questions 30 Time Limit 20 Minutes Points 1 Point for each Question
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Question 1 of 30
Q-1.A software that allows a personal computer to pretend it as a terminal is _______
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Question 2 of 30
Q-2.End-to-end flow and error control is done at the ____________ layer
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Question 3 of 30
Q-3.A DQDB device accesses a bus link through _______.
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Question 4 of 30
Q-4.The OSI model consists of ______ layers.
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Question 5 of 30
Q-5.There is congestion between DTE A and DTE B in the direction A to B. The packet going from B to A has BECN bit _______ and FECN bit _________
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Question 6 of 30
Q-6.X.25 protocol uses ____________.
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Question 7 of 30
Q-7.Who initiates a session on an ENQ/ACK system?
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Question 8 of 30
Q-8.When a signal loses energy in overcoming the resistance of a medium, this is called _______
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Question 9 of 30
Q-9.In FDDI, when all synchronous data have been sent and the THT value is still positive, _______.
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Question 10 of 30
Q-10.The ITU-T was formerly known as the _______
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Question 11 of 30
Q-11.Each device in a DQDB system is connected _______.
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Question 12 of 30
Q-12.To create an SVC connection, the sending device issues a _______ frame.
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Question 13 of 30
Q-13.The LAPB protocol is a version of the _________ protocol.
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Question 14 of 30
Q-14.The size of the header of a short data packet at the PLP level is ___________ bytes
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Question 15 of 30
Q-15.The _______ is a measure of an actual cycle time while the _______ is an average cycle value set at ring initialization
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Question 16 of 30
Q-16.GSM(Global System for Mobile Communication) is a _______ digital mobile telephones standard using a combination Time Division Multiple Access(TDMA) and FDMA(Frequency Division Multiple Access)
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Question 17 of 30
Q-17.Error control is mainly a function of the _______ layer.
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Question 18 of 30
Q-18._______ determines which device can send
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Question 19 of 30
Q-19.Frame Relay is designed mostly for ________.
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Question 20 of 30
Q-20.Which of the following divides the high speed signal into frequency bands?
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Question 21 of 30
Q-21.The number of rows in STS-3 is _______ the number of rows in STS-1.
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Question 22 of 30
Q-22._______ cable carries signals of higher frequency ranges than _______ cable.
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Question 23 of 30
Q-23.In the formula λ = c/f, c is the _______
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Question 24 of 30
Q-24.In a three-bytes address, the value of the EA fields are_______, _______ and _______ respectively.
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Question 25 of 30
Q-25.IEEE is responsible for a standard for local area networks called _______
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Question 26 of 30
Q-26.Propagation speed is usually measured in _______
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Question 27 of 30
Q-27.In the DS service hierarchy, _______ resembles DDS
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Question 28 of 30
Q-28._______ contains both N(S) and N(R) bits
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Question 29 of 30
Q-29.A crossbar switch with x inputs and y outputs requires _______ crosspoints
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Question 30 of 30
Q-30.In _______ encoding, anytime there are four or more consecutive 0 bits, violations are deliberately introduced
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