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.Token Ring and FDDI both use _______ as an access method.
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Question 2 of 30
Q-2.Check sum is used for
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Question 3 of 30
Q-3.When a DTE receives an error-free PLP packet, but is not ready to receive more packets, it sends an _________ control packet to the sender DTE.
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Question 4 of 30
Q-4.If the ASCII "m" character is received as an "n" character, this is known as a _______
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Question 5 of 30
Q-5.When a signal loses energy in overcoming the resistance of a medium, this is called _______
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Question 6 of 30
Q-6.__________ is the loss of energy as the signal propagates outward.
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Question 7 of 30
Q-7.IEEE is responsible for a standard for local area networks called _______
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Question 8 of 30
Q-8.The LCN in X.25 can define theoretically up to ___________ virtual circuits.
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Question 9 of 30
Q-9.A station on an ENQ/ACK system sends _______ frame to indicate that it is ready to receive
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Question 10 of 30
Q-10.A 4-PSK modulated signal has a bit rate of 2000 bps; the baud rate is _______.
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Question 11 of 30
Q-11.A signal with a period of 1 microsecond has a higher frequency than a signal with a period of _______
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Question 12 of 30
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Question 13 of 30
Q-13.Segmentation and reassembly are functions of the _______ layer.
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Question 14 of 30
Q-14.When an LAPD frame uses the D channel for data transmission, the value of SAPI (in decimal) is ______________.
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Question 15 of 30
Q-15.In a frequency-domain plot of a composite signal consisting of twelve sine waves (all of different frequencies and amplitudes), there are _______ vertical bars
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Question 16 of 30
Q-16.The OSI _______ layer is implemented mainly by hardware
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Question 17 of 30
Q-17.In the long format, the size of an RR packet is _________ bytes.
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Question 18 of 30
Q-18.If data were sent at 54 Kbps, what duration of noise would cause a single-bit error?
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Question 19 of 30
Q-19.The maximum data rate of a full duplex 8-PSK modem using a two-wire regular telephone line is ___________ bps
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Question 20 of 30
Q-20.As the data packet moves from the _______ layer up to the _______ layer, headers and a trailer are removed
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Question 21 of 30
Q-21.A distributed network configuration in which all data/information pass through a central computer is _____ network.
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Question 22 of 30
Q-22.Starting around 1988, the more advanced ______ twisted pairs were introduced.
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Question 23 of 30
Q-23.Which is a network protocol that is based on UDP and is a component of the Internet Protocol Suite, defined by IETF(Internet Engineering Task Force)
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Question 24 of 30
Q-24.If the value of HLEN in an IP packet is 0101, the header is _________ long.
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Question 25 of 30
Q-25.All of the parts in a computer talk to each other by sending _________
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Question 26 of 30
Q-26.A control packet such as a registration request at the PLP layer is encapsulated in _________ at the data link layer.
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Question 27 of 30
Q-27.The network address in Class E (without subnetting) has _______ zero(s) in decimal notation.
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Question 28 of 30
Q-28.RZ encoding requires _______ signal change(s) to encode one bit.
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Question 29 of 30
Q-29.In distance vector routing, a router has a route as Destination: N, Hop Count: 7, Next Hop: B. It receives a packet from C with a route to N as Destination: N, Hop Count: 6. The new route to N should be _______________.
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Question 30 of 30
Q-30.One important characteristics of the hub architecture of ARC-net is
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