What is the function of the 'Capacitor' component inside a standard Dynamic RAM (DRAM) cell structure? MCQ with Answer and Explanation

What is the function of the 'Capacitor' component inside a standard Dynamic RAM (DRAM) cell structure?
A. To store an electrical charge that represents a single binary bit value (0 or 1).
B. To protect the chip traces against high-voltage static electricity shocks.
C. To convert incoming alternating current lines into stable direct current.
D. To regulate the internal operating frequency clock of the memory stick.
Answer: Option A
Solution (By JKSSB Mock Tests)
A single DRAM memory cell consists of one transistor and one capacitor. The capacitor holds an electrical charge to represent a 1 or no charge to represent a 0.

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Practice More Memory and Storage Devices Questions

Question #1
What is the function of a memory scheduler?
A. To control page faults
B. To reorder memory requests to maximize performance
C. To manage cache lines
D. To allocate memory to processes

Correct Answer: Option B


Explanation:
A memory scheduler in a memory controller reorders incoming read/write requests to optimize bandwidth and reduce latency, improving overall performance.

This question belongs to: Computer Memory and Storage Devices
Question #2
Which memory unit is equivalent to 1024 gigabytes?
A. 1 petabyte
B. 1 exabyte
C. 1 kibibyte
D. 1 terabyte

Correct Answer: Option D


Explanation:
In binary, 1 terabyte (TB) = 1024 gigabytes (GB). However, in decimal context, 1 TB = 1000 GB. For exam purposes, 1024 GB is often considered 1 TB (though it's actually 1 TiB).

This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following is a characteristic of a memory's latency?
A. It is the number of clock cycles per second
B. It is the delay between a request and response
C. It is the amount of data transferred per second
D. It is the physical size of the memory

Correct Answer: Option B


Explanation:
Latency is the time delay from initiating a request to receiving a response, a key performance metric for memory.

This question belongs to: Computer Memory and Storage Devices