MCQ on Secondary Storage Devices – Computer GK
Useful and informative MCQ on Secondary Storage Devices that includes topics like Sequential and Direct Access Devices, Storage Devices – Types, Uses, Advantages & Limitations, Magnetic Tapes, Magnetic Disks, Optical Disks, Memory Storage Devices, Mass Storage Devices, Data Backup, Backup Policy, etc.
These MCQ on Secondary Storage Devices – Computer GK are very helpful for competitive exams such as CPCT, GATE, IES/ESE, IBPS PO, IBPS Clerk, SBI PO, SBI Clerk, RBI, SEBI, LIC, NICL, BCA, B.Sc. IT, DCA, SSC, RRB, NIELIT CCC, CTET, UDC NET, CUET, MCA, PGDCA, MCS, TET, State Police, BPO, etc.
These MCQ on Secondary Storage Devices have correct answers and brief explanations of each question for better understanding.
Q11. Which of the following is a type of mass storage device?
a) Magnetic tape library
b) RAM
c) SSD
d) CPU
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Correct Answer: a) Magnetic tape library
Explanation: Mass storage devices are combinations of spools of magnetic tape that can be automatically retrieved from a huge ‘library’ and read to disk. These store enormous amounts of information and do not require the intervention of a human.
Q12. What is the main disadvantage of magnetic disk memory compared to RAM?
a) Lower data transfer rate
b) Higher cost
c) Smaller storage capacity
d) Volatility
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Correct Answer: a) Lower data transfer rate
Explanation: The main disadvantage of magnetic disk memory compared to RAM is the lower data transfer rate. Magnetic disks are less expensive than RAM and can store large amounts of data, but the data access rate is slower than main memory because of secondary memory.
Q13. What is access time in the context of magnetic disks?
a) The time it takes to read or write data on the disk
b) The time it takes for the disk to spin up to its operating speed
c) The time it takes for the read/write head to move to the desired track and sector
d) The time it takes for the disk controller to process a data request
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Correct Answer: c) The time it takes for the read/write head to move to the desired track and sector
Explanation: Access time refers to the time it takes for the read/write head of a magnetic disk to move to the desired track and sector where the data is located. It is an important performance metric for storage devices, as it affects the overall speed at which data can be accessed.
Q14. What is the primary difference between a CD-ROM and a CD-R?
a) CD-ROM is read-only, while CD-R can be written to once
b) CD-ROM has a higher storage capacity than CD-R
c) CD-ROM uses magnetic storage, while CD-R uses optical storage
d) CD-ROM is a type of hard disk drive, while CD-R is a type of solid-state drive
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Correct Answer: a) CD-ROM is read-only, while CD-R can be written to once
Explanation: CD-ROM (Compact Disc Read-Only Memory) is a read-only optical disc, meaning that data can be read from it but not written to it. CD-R (Compact Disc Recordable) is a writable optical disc that allows users to write data to it once, but not erase or rewrite it.
Q15. What is the primary function of a disk array?
a) To provide a single, high-capacity storage device
b) To increase storage capacity and improve performance through data striping and redundancy
c) To store data in a non-volatile manner
d) To provide random access to data
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Correct Answer: b) To increase storage capacity and improve performance through data striping and redundancy
Explanation: A disk array is a storage system that consists of multiple disk drives working together to increase storage capacity and improve performance. Disk arrays use techniques such as data striping and redundancy to distribute data across multiple drives, which can improve access times and protect against data loss due to drive failures.
Q16. Which of the following is an example of a direct access storage device?
a) Magnetic tape
b) Hard disk drive
c) Punched card device
d) Paper tape
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Correct Answer: b) Hard disk drive
Explanation: A hard disk drive is an example of a direct access storage device. Direct access storage devices allow random access to data, meaning each physical record has a discrete location and a unique address.
Q17. What is the main advantage of magnetic tape storage over other storage technologies?
a) Faster data access
b) Higher storage capacity
c) Lower cost per unit of storage
d) Greater durability
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Correct Answer: c) Lower cost per unit of storage
Explanation: The main advantage of magnetic tape storage over other storage technologies is its lower cost per unit of storage. Magnetic tapes are less expensive than other storage technologies such as SSD drives, making them a more cost-effective option for large-scale data storage.
Q18. Which of the following is an example of an optical disk?
a) CD-ROM
b) Magnetic tape
c) Floppy disk
d) SSD
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Correct Answer: a) CD-ROM
Explanation: An optical disk is a storage medium that uses laser technology to read and write data. Examples of optical disks include CD-ROMs, DVDs, and Blu-ray discs.
Q19. What is the primary function of a hierarchical storage management (HSM) system?
a) To manage the storage of data on multiple devices
b) To optimize data storage based on access frequency
c) To provide a backup solution for data storage
d) To increase the storage capacity of a single device
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Correct Answer: b) To optimize data storage based on access frequency
Explanation: The primary function of a hierarchical storage management (HSM) system is to optimize data storage based on access frequency. HSM systems automatically move data between high-cost, high-performance storage devices and low-cost, low-performance storage devices based on how frequently the data is accessed.
Q20. Which of the following is a type of optical disk that can be written to and erased multiple times?
a) CD-ROM
b) CD-R
c) CD-RW
d) DVD-ROM
Show Answer
Correct Answer: c) CD-RW
Explanation: CD-RW (Compact Disc Rewritable) is a type of optical disk that can be written to and erased multiple times. This allows users to store, modify, and delete data as needed, unlike CD-ROMs and CD-Rs, which are read-only or can be written to only once, respectively.
More MCQ on Computer GK for Competitive Exams
- Introduction to Computer
- Basic Computer Organization
- Number Systems
- Computer Codes
- Processor and Memory
- Secondary Storage Devices
- Input and Output Devices
- Computer Software
- Flowchart and Computer Languages
- System Implementation
- Operating Systems
- Application Software Packages
- Business Data Processing
- Communications and Networks
- Internet Concepts and IoT
- Multimedia and File Extensions
- Classification of Computers
- Cyber Safety and Cyber Crime
- Computer Viruses and Security
- Basic Computer Shortcut Keys
- Shortcut Keys for Windows
- Shortcut Keys for MS Excel
- Shortcut Keys for MS Word
- Computer Abbreviations Set 1
- Computer Abbreviations Set 2
- Computer Abbreviations Set 3
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