Data Communication and Networking MCQs offer a valuable resource to test and enhance your understanding of the intricate world of data transmission, network protocols, and communication technologies. Whether you’re a student preparing for exams or a professional aiming to strengthen your knowledge, these multiple-choice questions with Answers cover a wide spectrum of topics, including network architecture, protocols, and security. These MCQs will help students in university exams,competitive exams and interviews preparation.
Section-1
1. Which of the following divides the high speed signal into frequency bands?
- T switch
- Time division multiplexer
- Frequency Division Multiplexer
- Code Division Multiplexer
2. Sending a file from users personal computers, primary memory or disk to another computer is called
- uploading
- hang on.
- logging on
- downloading
3. In OSI network architecture the dialogue control and token management are responsibilities of ________
- session layer
- network layer
- transport layer
- data link layer
4. Which one of the following is not a function of network layer?
- routing
- inter-networking
- congestion control
- none of the above
5. The interactive transmission of data within a time sharing system may be best suited to __________
- half duplex
- simplex lines
- biflex lines
- full duplex lines
6. How many OSI layers are covered in the X.25 standard?
- 3
- 2
- 7
- 6
7. The third layer of OSI model is _____
- physical layer.
- data link layer
- network layer
- transport layer.
8. The X.25 standard specifies a _________
- technique for start stop data
- technique for dial access
- DTE/DCE interface
- data bit rate
9. Which of the following signals is not standard RS-232-C signal?
- VDR
- CTS
- RTS
- DSR
10. What is the minimum number of wires needed to send data over a serial communication link layer?
- 1
- 2
- 4
- 6
Section-2
1. In ______ resolution the client is in direct contact more than one server.
- a recursive
- a cache
- an interactive
- default
2. Hypertext documents are linked through _______
- DNS
- TELNET
- pointers
- hyperlinks
3. Socket-style API for windows is called
- wsock
- winsock
- wins
- none of the above
4. Which of the following is not a retrieval method?
- Gopher
- Archie
- HTML
- HTTP
5. Which of the following types of channels moves data relatively slowly?
- Voiceband channel
- Wideband channel
- Narrowband channel
- Broadband channel
6. Which one of the following is a version of UDP with congestion control?
- datagram congestion control protocol
- stream control transmission protocol
- structured stream transport
- none of the mentioned
7. A distributed data processing configuration in which all activities must pass through a centrally located computer is called a _________
- hierarchical network
- spider network.
- ring network
- data control network
8. Network cable lies on ______ layer.
- physical
- data link
- network
- transport
9. Printer server uses a _____ which is a buffer that holds data before it is send to the printer.
- queue
- spool
- terminal
- buffer
10. Which one of the following is a transport layer protocol?
- stream control transmission protocol
- internet control message protocol
- neighbor discovery protocol
- dynamic host configuration protocol