Operating System Basics Questions and Answers
Operating System Basics questions with answers are among the most commonly asked in technical interviews and exams. This section covers core OS concepts like process management, memory allocation, file systems, and scheduling algorithms. Practicing programming questions and answers on operating systems helps strengthen your conceptual clarity and practical understanding of computer architecture. Frequently featured in GATE, TCS, Infosys, and Wipro placements, these MCQs provide a balanced mix of theoretical and applied knowledge. Clear explanations make this section an ideal resource for anyone preparing for system-related roles or competitive exams.
Operating System Basics
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563 questions
431. The RAID schemd indicate
- Random access of information data.
- Random array of independent disks.
- Redundant array of independent disks.
- Redundant access of information data.
432. Which of the RAID level does not employ independent access technique ?
- RAID 6
- RAID 5
- RAID 4
- RAID 3
433. Which of the followig RAID level uses independehnt access technique and distributes the parity strips across all disks ?
- Two
- Three
- Four
- Five
434. Cache memory is
- Bigger and slower than main memory
- Bigger and faster that main memory
- Smaller and slower than main memory
- Smaller and faster then main memory
435. By principle of locality, cache memory
- Increases average memory access time.
- Reduces average memory access time
- Does not affect the average memory access time
- None of these
436. Following is not true for disk cache
- It is a buffer in main memory for disk sector
- It contains the copy of some of the sector on the disk
- It is biger is size than main memory
- it is smaller is size than main memory
437. In disk storage devices, data are recordedon and later retrieved from disk via a conducting coil named
- Tail
- Foot
- Head
- Hand
438. In disk storage devices during read and write operation
- Head is rotate while platter is stationary
- Head is stationary while platter rotates
- Head and platter are both stationary
- None is true
439. In magnetic disk, density that is in bits per linear inch
- Increase in moving from the uter most track to the inner most track
- Deceases in moving from the outer most track to the inner most track
- Ramains same in moving from the outer most track to the inner most track.
- Randomly distributed in moving from outer most track to the inner most track.
440. Data from and to magnetic disk is transformed in
- Continuation
- Blocks
- Blocka and continuation both
- None of these