What does the term 'DDR4' indicate about a memory module? MCQ with Answer and Explanation

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What does the term 'DDR4' indicate about a memory module?

A. It is the fourth generation of Double Data Rate memory

B. It has four data rate channels

C. It stands for Digital Data Register 4

D. It is a type of ROM

Answer: Option A

Solution (By JKSSB Mock Tests)

DDR4 is the fourth generation of Double Data Rate (DDR) SDRAM, offering higher speeds, lower voltage, and increased density compared to DDR3.

This question belongs to: Computer Memory and Storage Devices

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Question #1

Which of the following is a type of memory that is used for storing data in a portable gaming device?

A. Hard disk

B. RAM

C. ROM

D. Flash memory

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Correct Answer: Option D

Explanation:
Portable gaming devices use flash memory for game cartridges and internal storage.

This question belongs to: Computer Memory and Storage Devices

Question #2

What is the function of the 'system clock' in relation to memory?

A. It determines the memory capacity

B. It controls the timing of data transfer between CPU and memory

C. It measures the amount of memory used

D. It allocates memory to processes

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Correct Answer: Option B

Explanation:
The system clock provides a timing signal that synchronizes the operations of the CPU, memory, and other components, coordinating data transfers.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which component is missing from a Solid State Drive (SSD) that is fundamentally present in a traditional mechanical Hard Disk Drive?

A. Internal firmware instructions

B. A physical read/write actuator arm and spinning platter

C. A connection interface data bus port

D. An integrated circuit controller

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Correct Answer: Option B

Explanation:
SSDs are purely electronic devices that use flash memory chips, meaning they lack the spinning platters, spindle motors, and moving read/write arms found in mechanical HDDs.

This question belongs to: Computer Memory and Storage Devices

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