COMP SCI REVISION 1

1. What does a data packet consist of?

• Header, Payload, Trailer
• Header, Body, Footer
• Payload, Address, Number
• Data, Control, Error

2. What does the packet header include?

• Destination address, Packet number, Originator's address
• Source address, Packet size, Destination address
• Data, Timestamp, Address
• Packet number, Payload, Trailer

3. What is the purpose of parity check in error detection?

• To detect errors in data after transmission
• To encrypt data
• To compress data
• To speed up data transmission

4. Which error detection method involves sending data back to the sender for verification?

• Echo check
• Checksum
• Parity check
• None of the above

5. What is the role of the CPU in a computer?

• To store data and instructions
• To transmit data
• To process instructions and data for output
• To detect errors in data transmission

6. What is the primary component of a Von Neumann architecture CPU?

• Arithmetic logic unit
• Control unit
• Program counter
• Memory address register

7. In the fetch-decode-execute cycle, what is the role of the control unit?

• To perform arithmetic and logical operations
• To manage the flow of instructions and data
• To store the address of the next instruction
• To store data and instructions during processing

8. Which register stores the address of the next instruction to be executed?

• Program counter
• Memory address register
• Memory data register
• Current instruction register

9. Which bus in a CPU is responsible for transmitting addresses?

• Address bus
• Data bus
• Control bus
• None of the above

10. How does magnetic storage read and write data?

• Using electromagnets
• Using lasers
• Using transistors
• Using floating gates