What type of data bus interface layout transfers all bits of a single data word concurrently across multiple parallel trace lines on a motherboard? MCQ with Answer and Explanation

Question

What type of data bus interface layout transfers all bits of a single data word concurrently across multiple parallel trace lines on a motherboard?

A. Serial Interface

B. Parallel Interface

C. Asynchronous Channel

D. Isochronous Bus

Answer: Option B

Solution (By JKSSB Mock Tests)

Parallel interfaces use multiple distinct physical lines to send a collection of data bits (like an entire byte or word) at the exact same instant.

This question belongs to: Computer Memory and Storage Devices

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Question #1

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Which of the following is a characteristic of flash memory used in SSDs?

A. It is more expensive per GB than HDDs but faster

B. It is slower than HDDs

C. It has a limited number of write cycles

D. It is volatile

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Correct Answer: Option C

Explanation:
Flash memory has a finite number of program/erase cycles, affecting SSD lifespan. It is non-volatile, faster than HDDs, and typically more expensive per GB.

This question belongs to: Computer Memory and Storage Devices

Question #2

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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 convert incoming alternating current lines into stable direct current.

C. To protect the chip traces against high-voltage static electricity shocks.

D. To regulate the internal operating frequency clock of the memory stick.

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Correct Answer: Option A

Explanation:
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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Question #3

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What is the primary function of a memory cache?

A. To provide backup storage

B. To increase the memory capacity

C. To reduce the effective memory access time

D. To store the operating system

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Correct Answer: Option C

Explanation:
Cache memory holds frequently accessed data and instructions to reduce the average time to access data from main memory, thus improving system performance.

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