Computer Networking MCQ
Computer Networking MCQ, Computer Networking Multiple Choice Questions, MCQ on Computer Networking, Data Transfer MCQ, Multiplexing Based MCQ, Multiple choice questions on Multiplexing
Multiple choice questions
Q.1. In simplex transmission
- Data format is simple
- Data transmission is one way
- Data can be transmitted to small distances only
- None of the above
Answer: Data transmission is one way
Q.2. In half-duplex data transmission
- Data can be transmitted in one direction only
- Data can be transmitted in both directions
- Data can be transmitted in both directions simultaneously
- None of the above
Answer: Data can be transmitted in both directions
Q.3. In digital data transmission
- Baud rate is equal to bit rate
- Baud rate is always smaller than the bit rate
- Baud rate is always higher than the bit rate
- None of the above
Answer: None of the above
Q.4. Typical bandwidth of optical fibers is
- Order of GHz
- Order of KHz
- Order of Hz
- None of the above
Answer: Order of GHz
Q.5. A large number of computers in a wide geographical area can be efficiently connected using
- Twisted pair lines
- Coaxial cables
- Communications satellites
- None of the above
Answer: Communications satellites
Q.6. In MODEMS
- Several digital signals are multiplexed
- A digital signal changes some characteristic of a carrier wave
- Digital signal is amplified
- None of the above
Answer: A digital signal changes some characteristic of a carrier wave
Q.7. In TDM
- Several signals are sent in time slotted mode on a channel
- Several signals are sent on separate channels
- One signal is sent to several users
- None of the above
Answer: Several signals are sent in time slotted mode on a channel
Q.8. In FDM every user uses
- Same frequency band
- Different frequency band
- A frequency band which he is assigned at random
- None of the above
Answer: Different frequency band
Q.9. In asynchronous transmission
- Inter-character gap is fixed
- Inter-character gap is variable
- Inter-character gap is always zero
- None of the above
Answer: Inter-character gap is variable
Q.10. In synchronous transmission data from various users
- Require header
- Do not require header
- Sometimes require header In circuit switching
- None of the above
Answer: Do not require header
Q.11. In circuit switching
- Data is stored at intermediate nodes
- Transmission path is set before data transfer
- Dedicated communication link is not required
- None of the above
Answer: Transmission path is set before data transfer
Q.12. When the time to establish link is large and the size of data is small, the preferred mode of data transfer is
- Circuit switching
- Packet switching
- Time division multiplexing
- None of the above
Answer: Packet switching
Q.13. Data transfer using telephone system is
- Time division multiplexing
- Space division multiplexing
- Frequency division multiplexing
- None of the above
Answer: Space division multiplexing
Q.14. The frequency range used in satellite communication is of the order of
- KHz
- MHz
- GHz
- None of the above
Answer: GHz
Q.15. Data transfer rate in modems is measured in
- Bits per minute
- Bits per second
- Bandwidth
- None of the above
Answer: Bits per second
Q.16. Communication between computers using standard telephone service
- Requires a change to an analog signal
- Is most efficient
- Produces little noise and few disturbances
- None of the above
Answer: Requires a change to an analog signal
Q.17. What is telecommunications?
- Any linking of two computers
- Linking two computers through the telephone system
- Linking two computers with direct high speed links
- All of the above
Answer: Linking two computers through the telephone system
Q.18. A modem is necessary because
- Computers are digital
- Telephone systems transmit analog waves
- Telephones aren’t fast enough without them
- Both Computers are digital and Telephone systems transmit analog waves
Answer: Both Computers are digital and Telephone systems transmit analog waves
Q.19. If a computer with a 9600 bps modem is communication with a computer with a 14400 bps modem, the communications is occurring at what rate?
- 9600 bps
- 14400 bps
- both the above
- Communications cannot occur
Answer: 9600 bps
Q.20. Which of the following wired transmission media is the fastest?
- Twisted pair
- coaxial
- fiber optics
- cellular telephone
Answer: fiber optics
Q.21. Computer on the Internet must …….
- Be of the same type
- Be able to connect to one Internet server for the country
- Connect to a coaxial cable connector
- Use the same protocols
Answer: Use the same protocols
Q.22. When the Internet began as ARPANET in 1969. it was …….
- Government sponsored
- Used by the Department of Defense
- Linked to university research centres
- All of the above
Answer: All of the above
Q.23. You can connect to the Internet through ………….
- Direct access
- Dialup IP
- A connected LAN
- All of the above
Answer: All of the above
Q.24. The three basic services available from the internet include all of the following except…….
- On demand video
- Telnet
- File Transfer protocol
Answer: On demand video
Q.25. If someone had an email address of sue.fit@ hud.gove.us, you probably would assume that she worked
- For the U.S. government
- Underseas
- In a remote village in the tundre
- You couldn’t tell from the address.
Answer: For the U.S. government
Q.26. EDI stands for
- Electronic Data information
- Electronic Data interchange
- Electrical data information
- Electrical data interchange
Answer: Electronic Data interchange
Q.27. Advantage of E-business applications
- Catalog flexibility
- Eliminate middleman
- Work flow automation
- Secure payment system
- All of the above
Answer: All of the above
Q.28. EPS stands for
- Electrical power supply
- Electrical payment service
- Electronic payment system
- None of the above
Answer: Electronic payment system
Q.29. Factor that are affecting EPS
- Brokers
- Environment
- Pollution
- All of the above
Answer: Brokers
Q.30. An original message in cryptography is known as
- Ciphertext
- Plaintext
- Authentication
- None of the above
Answer: Plaintext
Q.31. Encryption means converting
- Plaintext to Ciphertext
- Ciphertext to plaintext
- Both the above
- None of the above
Answer: Plaintext to Ciphertext
Q.32. Decryption means converting
- Plaintext to Ciphertext
- Ciphertext to plaintext
- Both the above
- None of the above.
Answer: Ciphertext to plaintext