TAO 6123 Quiz 2

The 3 major components of the processor are____

• Arithmetic and logic unit

• control unit

• system bus

• Registers

What is the purpose of Program Counter(PC)?

• Contains the instruction most recently fetched

• Contains the address of a location in memory

• Contains the address of an instruction to be fetched

• Contains a word of data to be written to memory or the word most recently read

What is the purpose of the Accumulator register?

• Stores the result of arithmetic and logic operations

• Contains the address of a location in memory

• Contains the address of an instruction to be fetched

• Contains a word of data to be written to memory or the word most recently read

What does the Control Unit do in a CPU?

• Stores the result of arithmetic and logic operations

• Controls the flow of data within the CPU

• Contains the address of an instruction to be fetched

• Contains a word of data to be written to memory or the word most recently read

What is the primary purpose of instruction pipelining in a CPU?

• To increase clock frequency

• To increase the number of instructions executed per clock cycle

• To reduce the latency of executing individual instructions

• To reduce the size of the instruction cache

Which are the 3 types of hazards occurs in pipeline?

• Structural hazard

• Data hazard

• Control/branch hazard

• Resource hazard

what is indirect addressing?

• Addressing mode where the operand is specified explicitly

• Addressing mode where the operand is located at a memory address stored in a register or memory location

• Addressing mode where the operand is computed using arithmetic operations

• Addressing mode where the operand is directly accessed from the instruction itself

Select the techniques that are commonly used to mitigate branch hazards?

• Register renaming

• Branch prediction

• Pipeline forwarding

• Loop buffer