BCS402 Quiz: Test Your Knowledge

What does CPU stand for in computer architecture?

• Central Processing Unit

• Central Program Utility

• Computer Processing Unit

• Central Peripheral Unit

Which of the following is the correct binary representation of the decimal number 13?

• 1010

• 1101

• 1110

• 1011

What is the full form of ALU in a computer system?

• Arithmetic Logic Unit

• Arithmetic Load Unit

• Array Logic Unit

• Arithmetic Lookup Unit

Which addressing mode uses the operand directly in the instruction itself?

• Direct Addressing

• Indirect Addressing

• Immediate Addressing

• Register Addressing

What is the size of a word in a 32-bit processor?

• 8 bits

• 16 bits

• 32 bits

• 64 bits

Which register holds the address of the next instruction to be executed?

• Memory Address Register (MAR)

• Instruction Register (IR)

• Program Counter (PC)

• Accumulator

Which of the following best describes the concept of virtual memory?

• A type of ROM used for fast access

• A technique that allows execution of processes that may not be completely in main memory by using disk space as an extension

• A cache memory that stores frequently used data

• A register used to store virtual addresses only

In the context of instruction pipelining, what is a data hazard?

• A situation where the pipeline must stall because the next instruction depends on the result of a previous instruction that has not yet completed

• A situation where the memory bus is overloaded with data

• A condition where the ALU produces incorrect results

• A fault in the cache memory causing data corruption

Which of the following correctly describes the difference between RISC and CISC architectures?

• RISC uses complex instructions with variable length, while CISC uses simple fixed-length instructions

• RISC uses a large number of instructions, while CISC uses fewer instructions

• RISC uses simple, fixed-length instructions and relies on software for complex operations, while CISC uses complex instructions handled by hardware

• RISC and CISC are identical in instruction set design