ITF+ Quiz Part 25

What is the main storage area for programs and data when the computer is running?

• Hard disk

• System memory

• External drive

• USB flash drive

Answer explanation

The main storage area for programs and data when the computer is running is the system memory, also known as RAM (Random Access Memory). It is where the computer temporarily stores data that is actively being used by the CPU.

What type of memory is Random Access Memory (RAM)?

• Non-volatile

• Volatile

• Permanent

• Secondary

Answer explanation

Random Access Memory (RAM) is considered volatile memory because it loses its data when the power is turned off.

Which of the following is NOT a notable RAM vendor mentioned in the text?

• Kingston

• Crucial (Micron)

• Corsair

• Seagate

Answer explanation

Seagate is NOT a notable RAM vendor mentioned in the text, making it the correct choice as the answer.

What does DRAM stand for?

• Dynamic Random Access Memory

• Direct Random Access Memory

• Digital Random Access Memory

• Distributed Random Access Memory

Answer explanation

DRAM stands for Dynamic Random Access Memory, making it the correct choice among the options provided.

What is a characteristic of Dynamic RAM (DRAM)?

• It does not need to be refreshed periodically.

• It stores each data bit as an electrical charge within a single bit cell.

• It is non-volatile memory.

• It is slower than accessing data in a mass storage system.

Answer explanation

Dynamic RAM (DRAM) stores each data bit as an electrical charge within a single bit cell, distinguishing it from other memory types.

What type of DRAM has been used for system memory since the mid-1990s?

• Asynchronous DRAM

• Synchronous DRAM (SDRAM)

• Static DRAM

• Flash DRAM

Answer explanation

Since the mid-1990s, Synchronous DRAM (SDRAM) has been used for system memory, providing faster and more efficient data transfer compared to Asynchronous DRAM.

What does SDRAM stand for?

• Synchronous Dynamic Random Access Memory

• Static Dynamic Random Access Memory

• Synchronous Direct Random Access Memory

• Static Direct Random Access Memory

Answer explanation

SDRAM stands for Synchronous Dynamic Random Access Memory, making it the correct choice among the options provided.

What is the data bus width of SDRAM?

• 32-bit

• 64-bit

• 128-bit

• 256-bit

Answer explanation

The data bus width of SDRAM is 64-bit, allowing for faster data transfer rates and improved performance.

What is the bandwidth of SDRAM if the bus is running at 66 MHz?

• 528 MBps

• 4224 MBps

• 1056 MBps

• 2112 MBps

Answer explanation

The bandwidth of SDRAM is calculated by multiplying the bus speed (66 MHz) by the data width (64 bits) and dividing by 8 to convert bits to bytes, resulting in 528 MBps.

What does DIMM stand for?

• Dual Inline Memory Module

• Double Inline Memory Module

• Dynamic Inline Memory Module

• Direct Inline Memory Module

Answer explanation

DIMM stands for Dual Inline Memory Module, making it the correct choice among the options provided.