Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Chapter: 39
Q801:
What specifies the number of bits stored per unit area in a memory?
A. Memory capacity
B. Memory density
C. Memory array
D. Memory size
Correct Answer:
B
Chapter: 39
Q802:
Which signals are used to configure memory for read and write operations?
A. Address signals
B. Data signals
C. Read/Write signals
D. Enable signals
Correct Answer:
C
Chapter: 39
Q803:
How are locations in memory identified?
A. By their data
B. By their address
C. By their size
D. By their type
Correct Answer:
B
Chapter: 39
Q804:
What is the purpose of the address bus?
A. To store data
B. To carry address
C. To perform calculations
D. To enable memory select
Correct Answer:
B
Chapter: 39
Q805:
What is the size of the address bus for a memory with 16 addressable locations?
A. 2 bits
B. 4 bits
C. 8 bits
D. 16 bits
Correct Answer:
B
Chapter: 39
Q806:
What determines the number of data lines in a memory?
A. The size of the data bus
B. The number of addressable locations
C. The type of memory
D. The power supply
Correct Answer:
A
Chapter: 39
Q807:
A Nibble consists of _____ bits
A. 2
B. 4
C. 8
D. 16
Correct Answer:
B
Chapter: 39
Q808:
What does a Memory Select or Enable signal do?
A. Selects a row in memory
B. Selects a memory chip
C. Activates the address bus
D. Enables the data bus
Correct Answer:
B
Chapter: 39
Q809:
What is a characteristic of RAM memory?
A. Non-volatile
B. Volatile
C. Permanent storage
D. No address lines
Correct Answer:
B
Chapter: 39
Q810:
What happens to data in RAM when the power is turned off?
A. It is stored permanently
B. It is lost
C. It is transferred to ROM
D. It is refreshed
Correct Answer:
B
Chapter: 39
Q811:
What type of memory retains data permanently?
A. RAM
B. ROM
C. Dynamic RAM
D. Static RAM
Correct Answer:
B
Chapter: 39
Q812:
What are the two types of RAM?
A. Flash and Static
B. Static and Dynamic
C. Volatile and Non-volatile
D. Read-only and Write-only
Correct Answer:
B
Chapter: 39
Q813:
What does a capacitor in Dynamic RAM store?
A. Multiple bits
B. A single bit
C. Byte
D. Nibble
Correct Answer:
B
Chapter: 39
Q814:
Why do Dynamic RAMs need a refresh cycle?
A. To write data
B. To read data
C. To retain data
D. To increase speed
Correct Answer:
C
Chapter: 39
Q815:
What is a key difference between Static and Dynamic RAM?
A. Static RAM uses capacitors
B. Dynamic RAM is faster
C. Static RAM is faster
D. Dynamic RAM is non-volatile
Correct Answer:
C
Chapter: 39
Q816:
What is a common feature of all memory chips?
A. Read/Write capability
B. Chip Select signal
C. Non-volatility
D. Large storage
Correct Answer:
B
Chapter: 40
Q817:
What is the purpose of row and column decoders in large memories?
A. To increase memory size
B. To speed up memory access
C. To reduce power consumption
D. To improve data accuracy
Correct Answer:
B
Chapter: 40
Q818:
How is a large memory typically organized?
A. Linearly
B. Two-dimensionally
C. Circularly
D. Randomly
Correct Answer:
B
Chapter: 40
Q819:
What happens to the decoding circuitry as memory size increases?
A. It becomes simpler
B. It becomes larger
C. It requires less power
D. It becomes faster
Correct Answer:
B
Chapter: 40
Q820:
What effect does the delay in decoding have on memory access?
A. Speeds it up
B. Slows it down
C. Has no effect
D. Doubles the speed
Correct Answer:
B