[Operating System MCQS ]

झारखंड में आयोजित होने वाली JPSC, JSSC, JET, झारखंड पुलिस भर्ती परीक्षा आदि के लिए उपयोगी सामान्य अध्ययन।

[ Operating System MCQS ]

Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.

241. OS layer में कौन शामिल नहीं है?

[A] kernel

[B] shell

[C] application

[D] critical section

241. Which is not OS layer?

[A] Kernel

[B] Shell

[C] Application program

[D] Critical section

सही उत्तर: critical section

व्याख्या: यह OS layer नहीं है।

Correct Answer: Critical section

Explanation: Not OS layer.

242. Distributed OS किस principle पर काम करता है?

[A] file foundation

[B] single system image

[C] multi system image

[D] network image

242. Distributed OS works on

[A] file foundation

[B] single system image

[C] multi system image

[D] network image

सही उत्तर: single system image

व्याख्या: distributed system एक single system जैसा दिखता है।

Correct Answer: single system image

Explanation: Appears as single system.

243. Disk memory में waiting process queue क्या कहलाता है?

[A] ready queue

[B] device queue

[C] input queue

[D] priority queue

243. Queue of processes waiting on disk is

[A] ready queue

[B] device queue

[C] input queue

[D] priority queue

सही उत्तर: input queue

व्याख्या: disk processes input queue में रहते हैं।

Correct Answer: input queue

Explanation: Waiting process queue.

244. Hold and wait condition क्या है?

[A] no resource release

[B] request new without release

[C] preemption

[D] circular wait

244. Condition where process holds resources while requesting new ones is

[A] mutual exclusion

[B] hold and wait

[C] no preemption

[D] circular wait

सही उत्तर: hold and wait

व्याख्या: process resources hold करके new request करता है।

Correct Answer: hold and wait

Explanation: Processes hold resources.

245. Disk arm movement time क्या कहलाता है?

[A] rotational delay

[B] seek time

[C] search time

[D] response time

245. Time taken by disk arm is

[A] rotational delay

[B] seek time

[C] search time

[D] response time

सही उत्तर: seek time

व्याख्या: यह movement time है।

Correct Answer: seek time

Explanation: Disk movement time.

246. Locality of reference किसे justify करता है?

[A] virtual memory

[B] interrupts

[C] main memory

[D] cache memory

246. Locality of reference justifies

[A] virtual memory

[B] interrupts

[C] main memory

[D] cache memory

सही उत्तर: cache memory

व्याख्या: cache locality principle पर काम करता है।

Correct Answer: cache memory

Explanation: Used in caching.

247. No preemption condition क्या है?

[A] resource sharing

[B] voluntary release

[C] forced release

[D] circular wait

247. In no preemption condition

[A] Mutual exclusion

[B] Hold and wait

[C] No preemption

[D] Circular wait

सही उत्तर: No preemption

व्याख्या: resource forcefully remove नहीं होता।

Correct Answer: No preemption

Explanation: Resources not forcibly taken.

248. OS service में odd कौन है?

[A] accounting

[B] protection

[C] error correction

[D] deadlock handling

248. Odd OS service is

[A] Accounting

[B] Protection

[C] Error detection and correction

[D] Deadlock handling

सही उत्तर: error detection and correction

व्याख्या: यह standard OS service नहीं है।

Correct Answer: Error detection and correction

Explanation: Not standard service.

249. Multiprocessing क्या है?

[A] OS simple

[B] parallel processes

[C] understood by vendors

[D] multiple processors

249. Multiprocessing means

[A] makes OS simpler

[B] multiple processes

[C] understood by vendors

[D] multiple processors

सही उत्तर: allows multiple processors

व्याख्या: multiple CPU system होता है।

Correct Answer: allows multiple processors

Explanation: Multiple CPUs used.

250. Circular wait condition क्या है?

[A] mutual exclusion

[B] hold and wait

[C] no preemption

[D] circular chain

250. Circular wait condition is

[A] mutual exclusion

[B] hold and wait

[C] no preemption

[D] circular waits

सही उत्तर: circular waits

व्याख्या: process chain form होती है।

Correct Answer: circular waits

Explanation: Circular dependency.