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MCQ on Computer Memory for Bank Exams

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Here, we have discussed a practice set of questions on the topic of Memory. It is one of the important topics asked in the IBPS PO exam. The focus is towards the aspirants who are new and don’t know from where to study so we have prepared a comprehensive set of questions for the aspirants to score well. As it is a high-scoring section and questions are asked here from the junior classes till junior high school.

Directions: Following the questions are given with four choices. You have to pick the right choice and mark the answer.

Ques 1. Which of the following represents the smallest memory entity?

(a) Block 

(b) Cell

(c) Instance

(d) Set

(e) None of the above

Answer: Option (b)

Explanation:

Countless tiny components known as cells make up computer memory. There is just one address for each cell (location), and it ranges from 0 to memory size – 1.

 

Ques 2. A personal computer’s primary memory, commonly known as its main memory, consists of?

(a) RAM only

(b) ROM only

(c) Both RAM and ROM

(d) Cache Memory

Answer: Option (c)

Explanation:

A personal computer’s main memory is made up of both ROM and RAM. This covers a variety of memory types, including system ROM and the processor cache. The majority of the time, system RAM is referred to as primary memory.

 

Ques 3. Which computer’s memory contains the system’s Boot sector files?

(a) RAM

(b) ROM

(c) Cache

(d) Register

Answer: Option (b)

Explanation:

The software instructions needed to start the computer are kept in ROM. Only reading is permitted.

 

Ques 4. Which of the following statements regarding a computer’s primary memory is false?

(a) Data loss occurs in the main memory when the power is turned off.

(b) Registers are slower than main memory, which is faster than secondary memory.

(c) Semiconductors make up their structure.

(d) All are correct

(e) None of the above

Answer: Option (d) 

Explanation:

All the statements given are correct about the main or primary memory. Data loss occurs when power is turned off. Registers are slower than main memory, which is faster than secondary memory. Semiconductors make up the total structure.

 

Ques 5. What are the two properties of RAM?

(a) Volatile, Temporary

(b) Non-volatile, Temporary

(c) Volatile, Permanent

(d) Non-volatile, Permanent

(e) None of the above

Answer: Option (a)

Explanation:

Because RAM is volatile, when a device is shut off, its data are gone. It is temporary memory as depending upon the requirement it changes its storage.

 

Ques 6. Which of the following is at the bottom of the hierarchy of computer memory?

(a) Cache

(b) RAM

(c) Secondary Memory

(d) Registers

(e) None of the above

Answer: Option (c) 

Explanation:

Secondary memory is located at the bottom of the hierarchy. Memory in a computer refers to the actual hardware used to temporarily or permanently store programs or data.

 

Ques 7. Which of the following has the fastest speed in the computer memory hierarchy?

(a) Cache

(b) Register in CPU

(c) Main memory

(d) Disk Cache

(e) None of the above

Answer: Option (b)

Explanation:

Registers present in the CPU have the fastest speed in the computer memory hierarchy. Registers are the area of the computer processor that is used to store data, do mathematical operations, or hold computer instructions. 

 

Ques 8. Where is the buffer between the CPU and main memory located?

(a) RAM

(b) ROM

(c) Cache

(d) Storage

(e) None of the above

Answer: Option (a)

Explanation:

Between the CPU and memory, there is RAM  where the buffer is located. Buffers are the disk block representation of the data that is located in the cache memory. It is a temporary holding area for any data. The prime concept behind buffer is to prevent data congestion from an incoming to an outgoing data transfer.

 

Ques 9. Which of the following statements concerning cache memory is false?

(a) Data is briefly stored in cache memory.

(b) It contains the information and program that must be executed quickly.

(c) It requires a shorter access time than RAM does.

(d) All are correct

(e) None of the above

Answer: Option (d)

Explanation:

All are ultimately the correct statements. Cache memory takes a shorter access time, data is briefly stored in cache memory, and is also a fast-paced memory.

 

Ques 10. What is the process of mapping a virtual address of a variable length onto a physical memory?

(a) Overlays

(b) Segmentation

(c) Paging

(d) Paging with segmentation

(e) None of the above

Answer: Option (b) 

Explanation:

The virtual address can be mapped onto physical memory through segmentation. Memory is divided into groups of varying lengths, or segments, via a technique or mechanism called segmentation. 

 

Ques 11. Which of the following methods is employed for data transport between the CPU and memory?

(a) Cache 

(b) TLB

(c) Buffers

(d) Registers

(e) None of the above

Answer: Option (d)

Explanation:

Several registers are present on a processor (CPU) to store data momentarily while a program is running. Therefore, registers are employed to transport data between the CPU and memory

 

Ques 12. Which memory chip in a computer enables simultaneous read and write operations?

(a) RAM

(b) ROM

(c) PROM

(d) EEPROM

Answer: Option (a)

Explanation:

RAM is a read-only, volatile chip memory that may be read from and written to. Because of this, it is also known as read-write memory (called RWM). 

 

Ques 13. Which form of memory allows for the permanent storage of programs and data once they have been created?

(a) EPROM

(b) PROM

(c) EEPROM

(d) None of the above

Answer: Option (b)

Explanation:

If there is a mistake when writing instructions or data to Programmable Read-Only Memory (PROM), the mistake cannot be fixed. PROM chip stops working. Therefore there is permanent storage of programs and data once they have been created.
 

Ques 14. Which kind of ROM permits the user or manufacturer to wipe data with UV radiation before reprogramming it?

(a) PROM

(b) EPROM

(c) EEPROM

(d) Both a and b

(e) Both a and c

Answer: Option (b) 

Explanation:

A unique kind of PROM called an EPROM (erasable programmable read-only memory) can be erased by exposing it to ultraviolet radiation. It can be reprogrammed after being wiped. Similar to a PROM, an EEPROM may be erased using just electricity.

 

Ques 15. What kind of ROM is just used for erasing?

(a) EEPROM

(b) PROM

(c) EPROM

(d) Both a and c

(e) All of the above

Answer: Option (c) 

Explanation:

A user-modifiable ROM is called an EEPROM (electrically erasable programmable read-only memory). When a larger electrical voltage is applied, it can be repeatedly erased and reprogrammed (written to).

 

Ques 16. How many different types of RAM are there?

(a) 4

(b) 3

(c) 2

(d) 6

(e) None of the above

Answer: Option (c)

Explanation:

There are two types of RAM. They are Static RAM and Dynamic RAM.

 

Ques 17. Computer accumulator registers have a size of-

(a) 4 bit

(b) 4 KB

(c) 4 bytes

(d) 8 bytes

(e) 16 bytes

Answer: Option (c)

Explanation: 

An accumulator is a sort of register used by the central processing unit of a computer to temporarily store arithmetic and logic data (CPU). It has a size of 4 bytes.

 

Ques 18. Which of the following memories is used in Digital Camera?

(a) Virtual Memory

(b) Flash Memory

(c) Main Memory

(d) Cache Memory

(e) None of the above

Answer: Option (b) 

Explanation:

Flash Memory is used in Digital cameras. Flash memory, also known as “electronic (solid-state) non-volatile computer storage media that can be electronically erased and reprogrammed,” is a type of memory that is used in digital cameras. 

 

Ques 19. Which of the following is not a solid-state storage device?

(a) DVD ROM

(b) Memory Card

(c) USB Flash Drives

(d) All of the above

(e) None of the above

Answer: Option (a)

Explanation:

An example of a solid-state storage device is not a DVD ROM. Electronic data is stored on computer storage devices known as solid-state storage. There are no moving parts (no reels of tape, no spinning discs, no laser beams, etc.).

 

Ques 20. The data kept in dynamic RAM must be:

(a) Checked

(b) Modified

(c) Refreshed periodically

(d) All of the above

(e) None of the above

Answer: Option (c) 

Explanation:

IC memory is dynamic RAM (DRAM), which necessitates routine value updates (every 20 milliseconds or so). Additionally, there is static RAM (SRAM), which does not require refreshing. In a sense, dynamic RAM functions like a capacitor.

 



Last Updated : 28 Nov, 2022
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