I/O Systems Quiz

What does I/O stand for in the context of computer systems?

• Internal/Output

• Internal/Operation

• Input/Output

• Input/Operation

Which component is responsible for encapsulating device details and providing a uniform interface to the I/O subsystem?

• Controller

• Kernel

• Bus

• Device driver

What is the common bus used in PCs and servers?

• HDMI

• SATA

• PCI

• USB

What type of I/O device includes keyboards and mice?

• Storage devices

• Block devices

• Character devices

• Network devices

What is the purpose of polling in I/O operations?

• To check device status

• To transfer data

• To manage memory

• To execute commands

What does DMA stand for in the context of I/O operations?

• Direct Memory Access

• Data Management Access

• Direct Memory Allocation

• Dynamic Memory Allocation

Which of the following is a characteristic of block devices?

• They are always slower than character devices

• They support random access

• They can only read data

• They do not support direct I/O

What is the role of an interrupt in I/O operations?

• To execute commands

• To initiate data transfer

• To signal the CPU for attention

• To manage memory allocation

What is the main advantage of using Direct Memory Access (DMA)?

• It uses more memory

• It is faster than polling

• It is easier to implement

• It requires less CPU intervention

Which of the following is NOT a method of I/O management?

• Spooling

• Compiling

• Caching

• Buffering