Microprocessor Quiz

Which of the following is NOT a general-purpose register in the 8086 microprocessor?

• AX

• CX

• BX

• IP

What is the primary role of the Control Unit (CU) in a microprocessor?

• Perform arithmetic operations

• Control the flow of data and instructions

• Store data temporarily

• Generate clock signals

What is the main function of the Arithmetic Logic Unit (ALU)?

• Manage memory operations

• Perform arithmetic and logical operations

• Control input and output devices

• Handle instruction fetching

Which flag in the FLAGS register is used to detect unsigned overflow?

• Zero Flag (ZF)

• Carry Flag (CF)

• Overflow Flag (OF)

• Sign Flag (SF)

Which statement is true about RISC architecture?

• Uses complex instructions with many cycles

• Executes a single instruction per clock cycle

• Requires fewer registers than CISC

• Relies heavily on microprogramming

Which flag in the FLAGS register indicates that the result of an operation is zero?

• Parity Flag (PF)

• Zero Flag (ZF)

• Auxiliary Carry Flag (AF)

• Sign Flag (SF)

it is a 64-bit Accumulator

• RAX

• EAX

• AX

• AH and AL

The AX register is also known as the:

• Base register

• Index register

• Accumulator

• Data register

Which of the following is a key characteristic of CISC processors?

• Simplified instruction set

• Instructions execute in a single clock cycle

• Complex instructions with multiple cycles

• Requires a large number of registers

What does the Control Unit NOT do in a microprocessor?

• Fetch instructions

• Decode instructions

• Perform arithmetic operations

• Coordinate other units