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
161. The time taken by the disk arm to locate the specific address of a sector for getting information is called __________.
- Rotational Latency
- Seek Time
- Search Time
- Response Time
163. Identify the odd thing in the services of operating system.
- Accounting
- Protection
- Error detection and correction
- Dead lock handling
164. Cryptography technique is used in ________.
- Polling
- Job Scheduling
- Protection
- File Management
165. Which of the following is not advantage of multiprogramming?
- Increased throughput
- Shorter response time
- Decreased operating system overhead
- Ability to assign priorities to jobs
166. In ______ OS, the response time is very critical.
- Multitasking
- Batch
- Online
- Real-time
167. An optimal scheduling algorithm in terms of minimizing the average waiting time of a given set of processes is ________.
- FCFS scheduling algorithm
- Round robin scheduling algorithm
- Shorest job - first scheduling algorithm
- None of the above
168. Real time systems are ________.
- Primarily used on mainframe computers
- Used for monitoring events as they occur
- Used for program development
- Used for real time interactive users
169. Which technique was introduced because a single job could not keep both the CPU and the I/O devices busy?
- Time-sharing
- SPOOLing
- Preemptive scheduling
- Multiprogramming
170. Inter process communication can be done through __________.
- Mails
- Messages
- System calls
- Traps