For 3 page frames, the following is the reference string: 7 0 1 2 0 3 0 4 2 3 0 3 2 1 2 0 1. How many page faults does the LRU page replacement algorithm produce (including page faults when the frames were free)?

• 11

• 13

• 12

• 10

For 3 page frames, the following is the reference string: 7 0 1 2 0 3 0 4 2 3 0 3 2 1 2 0 1. How many page faults does the Optimal page replacement algorithm produce (including page faults when the frames were free)?

• 11

• 9

• 10

• 8

For 3 page frames, the following is the reference string: 7 0 1 2 0 3 0 4 2 3 0 3 2 1 2 0 1. How many page faults does the FIFO page replacement algorithm produce (including page faults when the frames were free)?

• 13

• 14

• 16

• 15

What is not a main structural element of a computer system?

• Processor

• I/O modules

• Operating system

• Main memory

Which of the following element of a computer system stores data and programs?

• System bus

• Processor

• Main memory

• I/O modules

Which of the following provides for communication among elements of a computer system?

• System bus

• Processor

• AC

• Main memory

Which of the following element of a computer system moves data between the computer and its external environment?

• Main memory

• I/O modules

• Registers

• System bus

The processor contains a single data register, called

• PC

• AC

• MAR

• IR

This register specifies a particular input/output device

• I/OBR

• MAR

• I/OAR

• PC

This register is used for the exchange of data between an I/O module and the processor

• AC

• IR

• I/OAR

• I/OBR