Random Access Memory (RAM)

By: Prof. Dr. Fazal Rehman | Last updated: June 8, 2024

What does RAM stand for?

a) Read-Access Memory
b) Random-Access Memory
c) Run-Access Memory
d) Real-Access Memory
Answer: b) Random-Access Memory
Which type of RAM needs to be refreshed periodically?

a) SRAM
b) DRAM
c) Flash RAM
d) ROM
Answer: b) DRAM
What is the main characteristic of SRAM compared to DRAM?

a) Needs to be refreshed periodically
b) Is faster and more expensive
c) Has higher storage capacity
d) Is non-volatile
Answer: b) Is faster and more expensive
Which type of RAM is typically used for cache memory in CPUs?

a) DRAM
b) SRAM
c) SDRAM
d) DDR RAM
Answer: b) SRAM
What does DRAM stand for?

a) Dynamic Random-Access Memory
b) Digital Random-Access Memory
c) Direct Random-Access Memory
d) Dual Random-Access Memory
Answer: a) Dynamic Random-Access Memory
Which of the following is a volatile type of memory?

a) ROM
b) Flash memory
c) RAM
d) EEPROM
Answer: c) RAM
What is the main function of RAM in a computer system?

a) Permanent data storage
b) Storing the BIOS
c) Temporary storage for data and programs in use
d) Storing firmware
Answer: c) Temporary storage for data and programs in use
Which RAM type is synchronized with the system clock?

a) DRAM
b) SRAM
c) SDRAM
d) ROM
Answer: c) SDRAM
What does DDR stand for in DDR RAM?

a) Double Data Rate
b) Direct Data Rate
c) Dynamic Data Rate
d) Dual Data Rate
Answer: a) Double Data Rate
Which type of RAM is known for being the most energy-efficient?

a) DDR2
b) DDR3
c) DDR4
d) SRAM
Answer: c) DDR4
What is the main difference between DDR3 and DDR4 RAM?

a) DDR3 is faster than DDR4
b) DDR4 has lower voltage and higher transfer rates than DDR3
c) DDR3 is used in servers, while DDR4 is used in desktops
d) DDR4 is slower but more stable than DDR3
Answer: b) DDR4 has lower voltage and higher transfer rates than DDR3
What is the typical storage size range for modern RAM modules?

a) 512 KB to 2 MB
b) 2 MB to 16 MB
c) 1 GB to 32 GB
d) 64 GB to 256 GB
Answer: c) 1 GB to 32 GB
Which of the following RAM types uses the least power?

a) DDR2
b) DDR3
c) DDR4
d) DRAM
Answer: c) DDR4
In terms of speed, which RAM type is typically the fastest?

a) DDR2
b) DDR3
c) DDR4
d) SDRAM
Answer: c) DDR4
What is the purpose of ECC (Error-Correcting Code) in RAM?

a) To increase speed
b) To reduce power consumption
c) To detect and correct memory errors
d) To increase storage capacity
Answer: c) To detect and correct memory errors
Which RAM feature is crucial for server stability and data integrity?

a) High frequency
b) Low latency
c) ECC (Error-Correcting Code)
d) Overclocking capability
Answer: c) ECC (Error-Correcting Code)
Which RAM type is designed for high-performance applications and gaming?

a) DRAM
b) DDR4
c) SDRAM
d) SRAM
Answer: b) DDR4
What does SDRAM stand for?

a) Synchronous Dynamic Random-Access Memory
b) Static Dynamic Random-Access Memory
c) Serial Dynamic Random-Access Memory
d) Standard Dynamic Random-Access Memory
Answer: a) Synchronous Dynamic Random-Access Memory
Which of the following is true about RAM?

a) It is a permanent storage device
b) It is slower than hard disk storage
c) It allows data to be read and written quickly
d) It is primarily used for long-term data storage
Answer: c) It allows data to be read and written quickly
What is the role of RAM in a computer’s performance?

a) It stores the operating system permanently
b) It provides temporary storage for data and instructions that the CPU needs
c) It serves as a backup storage device
d) It holds the computer’s BIOS
Answer: b) It provides temporary storage for data and instructions that the CPU needs

MCQs of Digital Logic Design (DLD)

Introduction to Digital Systems

1. Analog vs. Digital signals MCQs
2. Binary numbers and arithmetic MCQs
3. Logic levels and noise margins MCQs

Boolean Algebra

1. Basic logic operations (AND, OR, NOT) MCQ
2. Laws and theorems of Boolean algebra MCQ
3. De Morgan’s Theorems MCQ
4. Canonical forms (Sum of Products, Product of Sums) MCQ
5. Simplification techniques (Karnaugh Maps, Quine-McCluskey method) MCQ

Combinational Logic

Logic Gates

1. Basic gates (AND, OR, NOT) Gat MCQ
2. Universal gates (NAND, NOR) Gat MCQs
3. XOR and XNOR gates MCQ

Combinational Circuits

1. Design and analysis of combinational circuits MCQ
2. Multiplexers and Demultiplexers MCQ
3. Encoders and Decoders MCQ
4. Binary Adders (Half adder, Full adder) MCQ
5. Subtractors and Arithmetic Logic Units (ALU) MCQ
6. Comparators MCQ in DLD

Sequential Logic

Flip-Flops and Latches

1. SR Latch, D Latch MCQ
2. Flip-Flops (SR, D, JK, T) MCQ
3. Characteristic equations and excitation tables MCQ
4. Edge-triggered vs. level-triggered devices MCQ

Counters and Registers

1. Synchronous, Asynchronous (ripple), Up/Down counters MCQs
2. Shift registers (SIPO, PISO, SISO, PIPO) MCQs

State Machines

Finite State Machines (FSMs)

1. Moore and Mealy machines MCQs

Memory and Programmable Logic MCQs

Memory Devices

1. Read-Only Memory (ROM)
2. Random Access Memory (RAM)
3. Programmable Logic Devices (PLDs) MCQs
4. Field Programmable Gate Arrays (FPGAs) MCQs

More MCQs of Digital Logic Design (DLD)

• • SET 1: DLD MCQs with answers (dld mcqs with answers)
  • SET 2: DLD MCQs (dld basic mcqs)
  • SET 3: DLD MCQs (solved mcqs of dld)
  • SET 4: DLD MCQs (dld repeated mcqs)
  • SET 5: DLD MCQs (dld important mcqs)
  • SET 6:DLD MCQs DLD Solved MCQs Answers PDF

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