NTA UGC NET Aug 2024 Paper-2
April 14, 2025UGC NET JRF November 2020 Paper-2
April 15, 2025UGC NET JRF November 2020 Paper-2
| Question 30 |
Match list I and List II
Choose the correct answer from the options given below:
Choose the correct answer from the options given below:
| A-I, B-II, C-III, D-IV
| |
| A-II, B-IV, C-III, D-I | |
| A-II, B-IV, C-I, D-III | |
| A-IV, B-III, C-II, D-I
|
Question 30 Explanation:
Handshaking: Handshaking provides two lines, strobe and acknowledgment. Sender uses a strobe line to send control signal to receiver informing him about the data transmission and receiver uses acknowledgement line to send control signal to sender acknowledging him that he is ready to receive the data.
Programmed input–output is a method of data transmission between a central processing unit (CPU) and a peripheral device. Each data item transfer is initiated by an instruction in the program, involving the CPU for every transaction. It requires the CPU to check the I/O flag & perform transfer.
Interrupt-initiated I/O: In interrupt driven I/O CPU checks the status of interrupt flag before execution of each instruction.When I/O have data to send it generates an interrupt informing CPU that device is ready for transfer
I/O processor : It has local memory & control large set of I/O devices
Programmed input–output is a method of data transmission between a central processing unit (CPU) and a peripheral device. Each data item transfer is initiated by an instruction in the program, involving the CPU for every transaction. It requires the CPU to check the I/O flag & perform transfer.
Interrupt-initiated I/O: In interrupt driven I/O CPU checks the status of interrupt flag before execution of each instruction.When I/O have data to send it generates an interrupt informing CPU that device is ready for transfer
I/O processor : It has local memory & control large set of I/O devices
Correct Answer: C
Question 30 Explanation:
Handshaking: Handshaking provides two lines, strobe and acknowledgment. Sender uses a strobe line to send control signal to receiver informing him about the data transmission and receiver uses acknowledgement line to send control signal to sender acknowledging him that he is ready to receive the data.
Programmed input–output is a method of data transmission between a central processing unit (CPU) and a peripheral device. Each data item transfer is initiated by an instruction in the program, involving the CPU for every transaction. It requires the CPU to check the I/O flag & perform transfer.
Interrupt-initiated I/O: In interrupt driven I/O CPU checks the status of interrupt flag before execution of each instruction.When I/O have data to send it generates an interrupt informing CPU that device is ready for transfer
I/O processor : It has local memory & control large set of I/O devices
Programmed input–output is a method of data transmission between a central processing unit (CPU) and a peripheral device. Each data item transfer is initiated by an instruction in the program, involving the CPU for every transaction. It requires the CPU to check the I/O flag & perform transfer.
Interrupt-initiated I/O: In interrupt driven I/O CPU checks the status of interrupt flag before execution of each instruction.When I/O have data to send it generates an interrupt informing CPU that device is ready for transfer
I/O processor : It has local memory & control large set of I/O devices