Data Communication and Networking Gk Questions SET-5 with Answers

We have provide here is the list of Data Communication and networking Mcqs for the preparation competitive exams. Each question has four options followed by the right answer.

MCQ Questions for Data Communication and Networking with Answers

Q1. Find out the OSI layer, which performs token management.

(i) Session Layer
(ii) Presentation Layer
(iii) Transport Layer
(iv) Network Layer

(i) Session Layer

Q2. The synchronous modems are more costly than the asynchronous modems because

(i) they produce large volume of data
(ii) they contain clock recovery circuits
(iii) they transmit the data with stop and start bits.
(iv) they operate with a larger bandwidth

(ii) they contain clock recovery circuits

Q3. The most common input device used today is

(i) Motherboard
(ii) Scanner
(iii) Keyboard
(iv) Mouse

(iii) Keyboard

Q4. To connect a computer to a device in the same room, we might be likely to use a….

(i) coaxial cable
(ii) dedicated line
(iii) ground station
(iv) all of these

(i) coaxial cable

Q5. Which encoding method uses alternating positive and negative values for 1s?

(i) Manchester
(ii) AMI
(iii) NRZ-I
(iv) RZ

(ii) AMI

Q6. Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?

(i) FTP
(ii) SNMP
(iii) SMTP
(iv) RPC

(iii) SMTP

Q7. In mesh topology, relationship between one device and another is _ .

(i) Peer to primary
(ii) Primary to peer
(iii) Peer to Peer
(iv) Primary to secondary

(iii) Peer to Peer

Q8. P2P is a _ application architecture.

(i) 1–tier
(ii) Network client
(iii) Client/server
(iv) None of these

(iii) Client/server

Q9. An encyclopedic database is….

(i) an information utility that specializes in storing and searching information
(ii) generally free
(iii) easy for beginners to use
(iv) all of these

(i) an information utility that specializes in storing and searching information

Q10. Which encoding type always has a nonzero average amplitude?

(i) Polar
(ii) Bipolar
(iii) Uni-polar
(iv) All the above

(iii) Uni-polar

Q11. Satellite-Switched Time-Division Multiple Access (SS/TDMA) is

(i) the method of determining which device has access to the transmission medium at any time.
(ii) a medium access control technique for multiple access transmission media
(iii) a form of TDMA in which circuit switching is used to dynamically change the channel assignments
(iv) All of the above

(iii) a form of TDMA in which circuit switching is used to dynamically change the channel assignments

Q12. Which is the main function of transport layer?

(i) Synchronization
(ii) End to end delivery
(iii) Node to node delivery
(iv) Updating and maintaining routing tables

(ii) End to end delivery

Q13. Communication channel having __ types.

(i) 1
(ii) 2
(iii) 3
(iv) 4

(iii) 3

Q14. ALOHA

(i) is buffering
(ii) is use of data transfer
(iii) use for channel allocation problem
(iv) all of these

(iii) use for channel allocation problem

Q15. Information utilities.

(i) are usually free
(ii) can be used to send electronic mail.
(iii) are run by companies that sell time on their time shared mainframe computers
(iv) Both (i) and (ii)

(iv) Both (i) and (ii)

Q16. In asynchronous transmission, the gap time between bytes is _.

(i) Fixed
(ii) A function of the data rate
(iii) Variable
(iv) Zero

(iii) Variable

Q17. FDDI stands for __ .

(i) Fiber Distributed Data Image
(ii) Fiber Data Distributed Interface
(iii) Fiber Distributed Data Interface
(iv) Fiber Dual Distributed Interface

(iii) Fiber Distributed Data Interface

Q18. In OSI network architecture, the routing is performed by

(i) Data link layer
(ii) Network layer
(iii) Session layer
(iv) Transport layer

(ii) Network layer

Q19. In a synchronous modem, the digital–to-analog converter transmits signal to the

(i) Equalizer
(ii) Modulator
(iii) Terminal
(iv) Demodulator

(i) Equalizer

Q20. To avoid transmission errors, a check figure is calculated by.

(i) transmitting computer
(ii) receiving computer
(iii) a personal computer
(iv) all of these

(iii) a personal computer

Q21. How many hosts are attached to each of the local area networks at your site?

(i) 128
(ii) 254
(iii) 256
(iv) 64

(ii) 254

Q22. Which of the following are the network services?

(i) Print service
(ii) File service
(iii) Database service
(iv) All of the above

(iv) All of the above

Q23. If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate, according to the Nyquist theorem?

(i) 500 samples/s
(ii) 1000 samples/s
(iii) 200 samples/s
(iv) 1200 samples/s

(iv) 1200 samples/s

Q24. Contention is

(i) One or more conductors that serve as a common connection for a related group of devices
(ii) a continuous frequency capable of being modulated or impressed with a second signal
(iii) the condition when two or more stations attempt to use the same channel at the same time
(iv) a collection of interconnected functional units that provides a data communications service among stations attached to the network

(iii) the condition when two or more stations attempt to use the same channel at the same time

Q25. What frequency range is used for TV transmission and low power microwave applications?

(i) Very low frequency : 3 kHz to 30 kHz
(ii) Medium frequency : 300 kHz to 3 MHz
(iii) Super high frequency : 3000 MHz to 30000 MHz
(iv) Ultra high frequency : 300 MHz to 3000 MHz

(iv) Ultra high frequency : 300 MHz to 3000 MHz

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