Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q881: How is memory expanded if a microprocessor requires more address space than initially available?
- A: By adding more RAM chips
- B: By increasing the data bus width
- C: By reducing the address bus width
- D: By upgrading the ROM size
View Answer
A
Q882: How does memory expansion affect the number of addressable locations?
- A: Increasing address lines increases locations
- B: Increasing data lines increases locations
- C: Adding more RAM chips increases locations
- D: Reducing address lines decreases locations
View Answer
A
Q883: What is the function of an address decoder in memory systems?
- A: To select the appropriate memory chip
- B: To manage data transfer rates
- C: To enhance memory speed
- D: To increase address bus width
View Answer
A
Q884: How does a 2 x 4 decoder select memory chips based on address lines?
- A: Uses the least significant address lines
- B: Uses the most significant address lines
- C: Uses both high and low address lines
- D: Connects all address lines together
View Answer
B
Q885: How are two 4K Byte RAM chips used to form an 8K Byte memory?
- A: Connected in parallel
- B: Connected in series
- C: Address lines are split
- D: Data lines are combined
View Answer
C
Q886: What is the advantage of using FPGA over a Programmable Logic Device (PLD)?
- A: More flexible logic blocks
- B: Less power consumption
- C: Easier to program
- D: Smaller size
View Answer
A
Q887: In a 1 MByte memory map, what is the purpose of having vacant memory blocks?
- A: For future expansion
- B: To reduce memory size
- C: To store ROM data
- D: To store data buffers
View Answer
A
Q888: What is the key difference between SRAM and DRAM in terms of memory implementation?
- A: SRAM uses latches, DRAM uses capacitors
- B: SRAM is volatile, DRAM is non-volatile
- C: SRAM requires refresh cycles, DRAM does not
- D: SRAM is slower, DRAM is faster
View Answer
A
Q889: What does a Karnaugh Map help to simplify in Boolean algebra?
- A: Logic gates
- B: Boolean expressions
- C: Arithmetic operations
- D: Digital circuits
View Answer
B
Q890: How many cells are there in a 3-variable Karnaugh Map?
- A: 4
- B: 8
- C: 16
- D: 32
View Answer
B