BSCS Computer Architecture and Organization

Question 1

What does the CPU's ALU stand for?

Accepted Answer

Arithmetic Logic Unit

Answer

Array Logic Unit

Answer

Automated Load Unit

Answer

Algebraic Logic Utility

Question 2

Which memory type loses its contents when power is removed?

Accepted Answer

RAM

Answer

ROM

Answer

Flash memory

Answer

EEPROM

Question 3

What is the purpose of the program counter (PC) register?

Accepted Answer

Holds the memory address of the next instruction

Answer

Counts the number of programs executed

Answer

Stores the result of arithmetic operations

Answer

Manages interrupt requests

Question 4

Which cache level is typically the smallest and fastest in a modern CPU?

Accepted Answer

L1 cache

Answer

L3 cache

Answer

L2 cache

Answer

LLC (Last Level Cache)

Question 5

What does pipelining achieve in a CPU?

Accepted Answer

Overlaps execution of multiple instructions

Answer

Reduces instruction size

Answer

Increases clock frequency only

Answer

Eliminates branch mispredictions

Question 6

In two's complement representation, how is -1 represented in 8 bits?

Accepted Answer

11111111

Answer

10000001

Answer

11111110

Answer

10000000