MCQs on Data Storage on Physical Media in DBMS
1.Which of the following storage media is known for having the fastest data access time?
A. Magnetic Tape
B. Hard Disk Drive (HDD)
C. Solid State Drive (SSD)
D. Optical Disc
Answer: C. Solid State Drive (SSD)
2.In the context of DBMS, what is a ‘block’?
A. A collection of records
B. The smallest unit of data that can be read or written
C. A data type
D. A storage location in RAM
Answer: B. The smallest unit of data that can be read or written
3.Which of the following is primarily used for archival storage due to its sequential access nature?
A. SSD
B. HDD
C. Magnetic Tape
D. Flash Drive
Answer: C. Magnetic Tape
4.In a DBMS, the term ‘seek time’ refers to:
A. The time taken to move the disk arm to the desired track
B. The time taken to transfer data from the disk to memory
C. The time taken to process a query
D. The time taken to retrieve a block of data from cache
Answer: A. The time taken to move the disk arm to the desired track
5.What is the purpose of using RAID (Redundant Array of Independent Disks) in data storage?
A. To increase data access time
B. To provide fault tolerance and improve performance
C. To decrease storage capacity
D. To encrypt data
Answer: B. To provide fault tolerance and improve performance
6.Which of the following RAID levels offers mirroring but no striping?
A. RAID 0
B. RAID 1
C. RAID 5
D. RAID 10
Answer: B. RAID 1
7.In a magnetic disk, data is organized into concentric circles called:
A. Sectors
B. Tracks
C. Blocks
D. Cylinders
Answer: B. Tracks
8.What is the main advantage of using an SSD over an HDD?
A. Higher storage capacity
B. Lower cost per GB
C. Faster data access speed
D. Larger physical size
Answer: C. Faster data access speed
9.Which of the following is a type of non-volatile memory used in storage devices?
A. RAM
B. Cache Memory
C. Flash Memory
D. Registers
Answer: C. Flash Memory
10.Which component of a hard disk drive (HDD) is responsible for reading and writing data?
A. Platter
B. Spindle
C. Read/Write Head
D. Actuator Arm
Answer: C. Read/Write Head
11.In a disk drive, what is ‘rotational latency’?
A. The time taken to spin up the disk
B. The time taken to move the read/write head to the correct track
C. The delay waiting for the disk to rotate to the correct position
D. The time taken to transfer data from the disk to the memory
Answer: C. The delay waiting for the disk to rotate to the correct position
12.Which type of storage device typically has the highest capacity?
A. SSD
B. HDD
C. Optical Disc
D. Flash Drive
Answer: B. HDD
13.What is the function of a ‘sector’ in the context of disk storage?
A. To store a single record
B. To divide the disk into logical units
C. To store a fixed amount of data within a track
D. To organize data hierarchically
Answer: C. To store a fixed amount of data within a track
14.Which of the following is an advantage of using magnetic tapes for data storage?
A. Fast random access
B. High durability and long-term storage
C. Low cost per MB
D. Small physical size
Answer: B. High durability and long-term storage
15.What does the ‘write-through’ method in caching ensure?
A. Data is written to cache only
B. Data is written to main memory only
C. Data is written simultaneously to cache and main memory
D. Data is never written to cache
Answer: C. Data is written simultaneously to cache and main memory
More MCQs Of Database Systems
- Database Models MCQs in DBMS
- Relational Database Model MCQs in DBMS
- SQL (Structured Query Language) MCQs in DBMS
- Database Design MCQs in DBMS
- Database Management System Architecture MCQs in DBMS
- Storage and File Structure MCQs in DBMS
- Query Processing and Optimization MCQs in DBMS
- Database Transaction Management MCQs in DBMS
- Database Security and Authorization MCQs in DBMS
- Backup and Recovery MCQs in DBMS
- Distributed Databases MCQs in DBMS
- SET 1: database design mcqs (database design mcqs )
- SET 2: database mcqs with answers pdf (database mcqs with answers pdf )
- SET 3: modern database management 12th edition mcqs (modern database management 12th edition mcqs)
- SET 4: database systems mcqs (database systems mcqs)
- SET 5: dbms mcqs (dbms mcqs )
- SET 6: dbms mcqs with answers (dbms mcqs with answers)
- SET 7: solved mcqs of dbms (solved mcqs of dbms)
- SET 8: dbms mcqs with answers pdf(dbms mcqs with answers pdf)
- SET 9: relational database management system mcqs(relational database management system mcqs)
- SET 10: solved mcqs of database management system(solved mcqs of database management system)
- SET 11: basic database mcqs pdf (basic database mcqs pdf)
- SET 12: relational database management system mcqs (relational database management system mcqs )
- SET 13: database mcqs online test (database mcqs online test)
- SET 14: database interview questions mcqs (database interview questions mcqs)
- SET 15: database developer mcqs (database developer mcqs)
- SET 16: database Repeated mcqs (database Repeated mcqs)
- SET 17: Database mcqs PPSC (Database mcqs PPSC)
- SET 18: Database mcqs FPSC (Database mcqs FPSC)
- SET 19: DBMS mcqs FPSC (DBMS mcqs FPSC)
New Arrival