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
521. Shared sub-directories and files are example of
- Cyclic graph directory
- tree structured direction
- one level directory
- none of these
522. The lowest level of I/O control consists of
- device drivers
- interrupt handlers
- both A and B above
- none of the above
523. Which type of design problem in file system
- how the file system should look to the user
- algorithm and data structure must be created to map the logical file system onto the secondary storage device
- Both A and B above
- None of the above
524. Of the following which is the methods for allocating disks
- Contiguous
- Linked
- Indexed
- All o the above
525. External fragmentation solved by whichallocation ?
- Contiguous allocation
- linked allocation
- index allocation
- both B and C
526. Whcih O/I are best method for allocating ?
- Contiguous
- Linked
- Index
- All of the above
527. Allocate the first hole that is big enouggh is called
- first fit
- best fit
- worst fit
- all of the above
528. Allocate the smallest hole that. is big enough is called
- first fit
- best fit
- worst fit
- all of the above
529. The most efficient data set organization is
- a sequential file
- an ISAM file
- variable depending upon the usage of the data set
- a partitioned data set
530. A partitioned data set is most used for
- storing program data
- storing ISAM files
- a program or source library
- storing backup information