BSCS Computer Architecture and Organization 3

Question 1

What is the purpose of virtual memory?

Accepted Answer

To allow programs to use more memory than physically available

Answer

To speed up CPU clock cycles

Answer

To encrypt RAM contents

Answer

To replace cache memory

Question 2

Which number system uses base 16?

Accepted Answer

Hexadecimal

Answer

Binary

Answer

Octal

Answer

Decimal

Question 3

What does the fetch-decode-execute cycle describe?

Accepted Answer

The fundamental steps a CPU takes to process each instruction

Answer

How the OS loads programs into memory

Answer

How compilers translate source code

Answer

The process of cache invalidation

Question 4

What is the difference between CISC and RISC architectures?

Accepted Answer

CISC has many complex instructions; RISC has fewer, simpler ones

Answer

CISC uses fewer, simpler instructions; RISC uses many complex ones

Answer

CISC runs faster; RISC uses less power

Answer

CISC is used in phones; RISC is used in desktops

Question 5

What is a register file in a CPU?

Accepted Answer

A small, fast set of storage locations inside the processor

Answer

A log file tracking register changes

Answer

The collection of I/O ports

Answer

A file system stored in ROM

Question 6

What does IEEE 754 define?

Accepted Answer

Floating-point arithmetic and number representation

Answer

Integer binary encoding standard

Answer

Network packet format

Answer

Character encoding (ASCII extension)