IB Computer Science A1.1 ,B1.1,B2.1,B2.1.1,B2.1.2

Which of the following is an example of volatile memory?

• Hard Disk Drive (HDD)

• Random Access Memory (RAM)

• Solid State Drive (SSD)

• Read Only Memory (ROM)

A CPU with a clock speed of 3.2 GHz can theoretically execute how many cycles per second?

• 3.2 million

• 3.2 billion

• 32 million

• 320 million

In the fetch-decode-execute cycle, which component stores the address of the next instruction to be fetched?

• Accumulator

• Memory Address Register (MAR)

• Program Counter (PC)

• Instruction Register (IR)

Which storage device typically has the fastest data access speed?

• Hard Disk Drive (HDD)

• Solid State Drive (SSD)

• Optical Drive

• Magnetic Tape

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

• Store data temporarily

• Control program execution

• Perform arithmetic and logical operations

• Manage memory addresses

Which type of memory loses its contents when power is turned off?

• Non-volatile memory

• Volatile memory

What is the main advantage of SSD over HDD?

• Lower cost per GB

• Larger storage capacity

• Faster data access speed

• Better compatibility

In a multi-core processor, what does each core represent?

• A) A separate memory unit

• B) An independent processing unit

• C) A storage device

• D) A graphics processor

Which component temporarily holds the instruction currently being executed?

• Program Counter

• Memory Address Register

• Instruction Register

• Accumulator

What is cache memory primarily used for?

• Long-term data storage

• Storing frequently accessed data for faster retrieval

• Running the operating system

• Managing network connections