CS601 Solved MCQs

CS601-700 Solved MCQs

Q1. In a _______ connection, more than two devices can share a single link.

1. Point-to-point
2. Primary
3. Multipoint
4. Secondary

answer (c): Multipoint

Q2. Communication between a computer and a keyboard involves ______________ transmission

1. Full-duplex
2. Half-duplex
3. Simplex
4. Automatic

Q3. In a network with 25 computers, which topology would require the most extensive cabling?

1. Star
2. Mesh
3. Bus
4. Ring

answer (b): Mesh

Q4. Which topology requires a central controller or hub?

1. Star
2. Mesh
3. Bus
4. Ring

answer (a): Star

Q5. The _______ is the physical path over which a message travels.

1. Protocol
2. Medium
3. Signal
4. All of the above

answer (b): Medium

Q6. Which organization has authority over interstate and international commerce in the communications field?

1. ITU-T
2. IEEE
3. ISO
4. FCC

answer (d): FCC

Q7. The information to be communicated in a data communications system is the ________

1. Medium
2. Protocol
3. Transmission
4. Message

answer (d): Message

Q8. Frequency of failure and network recovery time after a failure are measures of the _______ of a network.

1. Performance
2. Security
3. Reliability
4. Feasibility

answer (c): Reliability

Q9. In _______ transmission, the channel capacity is shared by both communicating devices at all times.

1. Full-duplex
2. Simplex
3. Half-duplex
4. Half-Simplex

answer (a): Full-duplex

Q10. An unauthorized user is a network _______ issue.

1. Performance
2. Reliability
3. Security
4. All of the above

answer (c): Security

Q11. Which topology requires a multipoint connection?

1. Mesh
2. Star
3. Ring
4. Bus

answer (d): Bus

Q12. A television broadcast is an example of _______ transmission.

1. Half-duplex
2. Full-duplex
3. Simplex
4. Automatic

Q13. A _______ connection provides a dedicated link between two devices.

1. Multipoint
2. Point-to-Point
3. Primary
4. Secondary

answer (b): Point-to-Point

Q14. A cable break in a _______ topology stops all transmission.

1. Mesh
2. Star
3. Primary
4. Bus

answer (d): Bus

Chapter 2: Network Models

Q15. The _______ layer changes bits into electromagnetic signals.

1. Physical
2. Transport
3. None of the above
4. Data link

answer (a): Physical

Q16. The physical layer is concerned with the transmission of _______ over the physical medium.

1. Programs
2. Protocols
3. Bits
4. Dialogs

Q17. Mail services are available to network users through the _______ layer.

1. Data link
2. Physical
3. Application
4. Transport

Q18. As the data packet moves from the lower to the upper layers, headers are _______.

1. Added
2. Rearranged
3. Modified
4. Subtracted

Your answer is b

Q19. As the data packet moves from the upper to the lower layers, headers are _______.

1. Removed
2. Added
3. Rearranged
4. Modified

Q20. The _______ layer lies between the network layer and the application layer.

1. Data link
2. Physical
3. Transport
4. None of the above

Q21. Layer 2 lies between the physical layer and the _______ layer.

1. Data link
2. Network
3. Transport
4. None of the above

Your answer is b

Q22. When data are transmitted from device A to device B, the header from A's layer 4 is read by B's _______ layer.

1. Application
2. Physical
3. Transport
4. None of the above

Q23. Which layer functions as a liaison between user support layers and network support layers?

1. Network layer
2. Transport layer
3. Physical layer
4. Application layer

Q24. What is the main function of the transport layer?

1. Process-to-process delivery
2. Node-to-node delivery
3. Synchronization
4. Updating and maintenance of routing tables

Q25. Which of the following is an application layer service?

1. Remote log-in
2. File transfer and access
3. Mail service
4. All the above

Q26. The Internet model consists of _______ layers.

1. Three
2. Five
3. Seven
4. Eight