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DBMS Storage System MCQs

DBMS Storage System MCQs: This section contains multiple-choice questions and answers on Storage System in DBMS.
Submitted by Anushree Goswami, on April 29, 2022

1. The data ___ in a database can be viewed in its entirety.

  1. Fetched
  2. Stored
  3. Created
  4. None

Answer: B) Stored

Explanation:

The data stored in a database can be viewed in its entirety.

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2. Various storage devices store ___ in the form of data.

  1. Bits
  2. Bytes
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

Various storage devices store bits and bytes in the form of data.

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3. How many types of data storage are there?

  1. 2
  2. 3
  3. 4
  4. 5

Answer: B) 3

Explanation:

There are 3 types of data storage.

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4. Which of the following is the type of data storage?

  1. Primary
  2. Secondary
  3. Tertiary
  4. All of the above

Answer: D) All of the above

Explanation:

The types of data storage are -

  1. Primary
  2. Secondary
  3. Tertiary

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5. Which of the following has the highest speed?

  1. Primary Storage
  2. Secondary Storage
  3. Tertiary Storage
  4. All of the above

Answer: A) Primary Storage

Explanation:

The primary storage has the highest speed.

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6. Which of the following has the lowest speed?

  1. Primary Storage
  2. Secondary Storage
  3. Tertiary Storage
  4. All of the above

Answer: C) Tertiary Storage

Explanation:

The tertiary storage has the lowest speed.

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7. Data stored in the primary storage can be accessed ___.

  1. Lately
  2. Quickly
  3. Delayed
  4. None

Answer: B) Quickly

Explanation:

Data stored in this area can be accessed quickly.

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8. The primary storage is also referred as -

  1. Volatile Storage
  2. Non-volatile Storage
  3. Seamless Storage
  4. None of the above

Answer: A) Volatile Storage

Explanation:

The primary storage is also referred as Volatile Storage.

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9. Memory types that use ____ storage do not permanently store data.

  1. Primary
  2. Secondary
  3. Tertiary
  4. None

Answer: A) Primary

Explanation:

Memory types that use primary storage do not permanently store data.

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10. A power ___ of the system also results in the loss of data.

  1. Outage
  2. Crash
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

A power outage or crash of the system also results in the loss of data.

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11. How many types of primary storage are there?

  1. 2
  2. 3
  3. 4
  4. 5

Answer: A) 2

Explanation:

There are 2 types of primary storage.

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12. Which of the following is the type of primary storage?

  1. Main memory
  2. Cache
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

The types of primary storage are -

  1. Main memory
  2. Cache

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13. Data that is accessible via the storage medium is processed by the ___.

  1. Cache
  2. Main memory
  3. Both A and B
  4. None of the above

Answer: A) Main memory

Explanation:

Data that is accessible via the storage medium is processed by the main memory.

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14. Every instruction a computer machine receives goes into the ___.

  1. Main memory
  2. Cache
  3. Main Memory & Cache
  4. None of the above

Answer: A) Main memory

Explanation:

Every instruction a computer machine receives goes into the main memory.

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15. Gigabytes of ____ storage can be stored on a system, but the memory size is also small enough to store the entire database.

  1. Primary
  2. Secondary
  3. Tertiary
  4. None

Answer: A) Primary

Explanation:

Gigabytes of primary storage can be stored on a system, but the memory size is also small enough to store the entire database.

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16. In the event of a power outage or other failure, the ____ memory loses its entire contents.

  1. Main
  2. Secondary
  3. Tertiary
  4. None

Answer: A) Main

Explanation:

In the event of a power outage or other failure, the main memory loses its entire contents.

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17. Storage media such as cache are ____.

  1. Cheap
  2. Expensive
  3. Average price
  4. None

Answer: B) Expensive

Explanation:

Storage media such as cache are expensive.

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18. Cache is the ___ storage media.

  1. Slowest
  2. Fastest
  3. Deadlock
  4. None

Answer: B) Fastest

Explanation:

Cache is the fastest storage media.

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19. Cached storage is kept by computer hardware and usually consists of a ___ amount of information.

  1. Big
  2. Small
  3. Average
  4. None

Answer: B) Small

Explanation:

Cached storage is kept by computer hardware and usually consists of a small amount of information.

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20. ___ designers keep cache effects in mind as they design algorithms and query processors.

  1. Database
  2. Data structure
  3. Dataset
  4. None

Answer: B) Data structure

Explanation:

Data structure designers keep cache effects in mind as they design algorithms and query processors.

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21. What is secondary storage also known as?

  1. Online Storage
  2. Offline Storage
  3. Main Storage
  4. None

Answer: A) Online Storage

Explanation:

Secondary storage is also known as Online Storage.

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22. Data is stored in Secondary Storage in order to be ____ available to the user.

  1. Permanently
  2. Temporarily
  3. Consecutively
  4. Simultaneously

Answer: A) Permanently

Explanation:

Data is stored in Secondary Storage in order to be permanently available to the user.

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23. ___ cannot corrupt data stored in secondary storage.

  1. Power failures
  2. System crashes
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

Power failures or system crashes cannot corrupt data stored in secondary storage.

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24. Secondary storage is also known as -

  1. Online Storage
  2. Non-volatile storage
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

Secondary storage is also known as online storage and non-volatile storage.

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25. Which of the following is the secondary storage media?

  1. Flash Memory
  2. Magnetic Disk Storage
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

The secondary storage media are -

  1. Flash Memory
  2. Magnetic Disk Storage

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26. Flash memory files are stored on ___- keys, which are connected to a computer through ___ ports.

  1. USB
  2. UBS
  3. BUS
  4. SUB

Answer: A) USB

Explanation:

Flash memory files are stored on USB (Universal Serial Bus) keys, which are connected to a computer through USB ports.

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27. Data can be transferred to a computer system using the USB devices, but they have ___ sizes.

  1. Same
  2. Different
  3. Similar
  4. None

Answer: B) Different

Explanation:

Data can be transferred to a computer system using these USB devices, but they have different sizes.

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28. Due to a power failure or other factors, it is possible to retrieve the stored data, unlike the ___.

  1. Main memory
  2. Cache
  3. Both A and B
  4. None of the above

Answer: A) Main memory

Explanation:

Due to a power failure or other factors, it is possible to retrieve the stored data, unlike the main memory.

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29. Storage of this type is often used for caching frequently accessed data in ___ systems.

  1. Server
  2. Flash
  3. Storage
  4. None

Answer: A) Server

Explanation:

Storage of this type is often used for caching frequently accessed data in server systems.

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30. It leads to high performance systems and can be used to store a ___ amount of data than what can be stored in the main memory.

  1. Smaller
  2. Larger
  3. Medium
  4. None

Answer: B) Larger

Explanation:

It leads to high performance systems and can be used to store a larger amount of data than what can be stored in the main memory.

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31. Magnetic Disk Storage is also known as -

  1. Offline Storage Media
  2. Online Storage Media
  3. Shuffle Storage Media
  4. Storage Media

Answer: B) Online Storage Media

Explanation:

Magnetic Disk Storage is also known as Online Storage Media.

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32. Magnetic disks are used to store data for a ___ period of time.

  1. Short
  2. Long
  3. Average
  4. None

Answer: B) Long

Explanation:

Magnetic disks are used to store data for a long period of time.

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33. A/An ___ database can be stored on magnetic disk storage.

  1. Half
  2. Quarter
  3. Entire
  4. None

Answer: C) Entire

Explanation:

An entire database can be stored on magnetic disk storage.

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34. The computer system is responsible for providing access to the data on a disk to the main memory.

  1. Main
  2. Secondary
  3. Primary
  4. Tertiary

Answer: A) Main

Explanation:

The computer system is responsible for providing access to the data on a disk to the main memory.

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35. Any time the system ____ the data, it should write back the modified data to the disk.

  1. Saves
  2. Manipulates
  3. Adds
  4. Deletes

Answer: B) Manipulates

Explanation:

Any time the system manipulates the data, it should write back the modified data to the disk.

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36. ___ have the distinguishing characteristic of not affecting the data in the event of a system crash or failure, but a disk failure can easily damage and destroy the stored data.

  1. Flash Memory
  2. Magnetic Disks
  3. Optical Storage
  4. Tape Storage

Answer: B) Magnetic Disks

Explanation:

Magnetic disks have the distinguishing characteristic of not affecting the data in the event of a system crash or failure, but a disk failure can easily damage and destroy the stored data.

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37. There is a type of storage called Tertiary Storage that is ___ to the computer system.

  1. Internal
  2. External
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

There is a type of storage called Tertiary Storage that is external to the computer system.

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38. ___ Storage has the slowest speed.

  1. Primary
  2. Secondary
  3. Tertiary
  4. None

Answer: C) Tertiary

Explanation:

Tertiary Storage has the slowest speed.

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39. A ____ storage system can store a significant amount of data.

  1. Primary
  2. Secondary
  3. Tertiary
  4. None

Answer: C) Tertiary

Explanation:

A tertiary storage system can store a significant amount of data.

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40. Tertiary storage is also known as -

  1. Online storage
  2. Offline storage
  3. Main storage
  4. None

Answer: B) Offline storage

Explanation:

Tertiary Storage is also known as Offline Storage.

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41. Data backup usually takes place on ___ storage.

  1. Primary
  2. Secondary
  3. Tertiary
  4. None

Answer: C) Tertiary

Explanation:

Data backup usually takes place on tertiary storage.

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42. Which of the following is the tertiary storage device?

  1. Optical Storage
  2. Tape Storage
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

The tertiary storage devices are -

  1. Optical Storage
  2. Tape Storage

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43. ____ of data can be stored on optical storage devices.

  1. Megabytes
  2. Gigabytes
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

Megabytes or gigabytes of data can be stored on optical storage devices.

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44. In order to store 700 megabytes of data on a Compact Disk (CD), the drive must be played for approximately ___ minutes.

  1. 60
  2. 70
  3. 80
  4. 90

Answer: C) 80

Explanation:

In order to store 700 megabytes of data on a Compact Disk (CD), the drive must be played for approximately 80 minutes.

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45. The depth and width of a DVD or Digital Video Disk can store between ____ gigabytes of data.

  1. 4.7
  2. 8.5
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

The depth and width of a DVD or Digital Video Disk can store between 4.7 and 8.5 gigabytes of data.

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46. ___ is the most cost-effective storage medium compared to disks.

  1. Magnetic Disk Storage
  2. Optical Storage
  3. Tape Storage
  4. None of the above

Answer: C) Tape Storage

Explanation:

Tape storage is the most cost-effective storage medium compared to disks.

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47. Data is ___ up on tapes.

  1. Archived
  2. Backed
  3. Both A and B
  4. None of the above

Answer: C) Both A and B

Explanation:

Data is archived or backed up on tapes.

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48. Data is accessed ___ from the beginning when using Tape Storage because it is accessed ____ from the beginning.

  1. Consecutively
  2. Sequentially
  3. Simultaneously
  4. None

Answer: C) Simultaneously

Explanation:

Data is accessed sequentially from the beginning when using Tape Storage because it is accessed sequentially from the beginning.

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49. Tape Storage also refer as -

  1. Sequential-access Storage
  2. Offline Storage
  3. Online Storage
  4. Main Storage

Answer: A) Sequential-access Storage

Explanation:

Tape Storage also refer as Sequential-access Storage.

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50. The ability to access data directly from any location on a disk is what makes disk storage known as ___ storage.

  1. Random-access
  2. Direct-access
  3. Linear-access
  4. Heap-access

Answer: B) Direct-access

Explanation:

The ability to access data directly from any location on a disk is what makes disk storage known as direct-access storage.

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51. Which among the following comes at the top in storage hierarchy?

  1. Cache
  2. Main Memory
  3. Flash Memory
  4. Magnetic Disk

Answer: A) Cache

Explanation:

Cache comes at the top in storage hierarchy.

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52. Which among the following comes at the bottom in storage hierarchy?

  1. Magnetic Disks
  2. Main Memory
  3. Flash Memory
  4. Magnetic Tapes

Answer: D) Magnetic Tapes

Explanation:

Magnetic Tapes comes at the bottom in storage hierarchy.

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