Basic Operating System MCQ
Basic Operating System MCQ
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