[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.

271. Propagation phase क्या है?

[A] copy itself

[B] delete files

[C] run system

[D] scan disk

271. Propagation phase is

[A] copy itself

[B] delete files

[C] run system

[D] scan disk

सही उत्तर: copy itself

व्याख्या: virus copy बनाता है।

Correct Answer: copy itself

Explanation: Replication phase.

272. Zombie क्या है?

[A] virus

[B] worm

[C] hacked system

[D] trap door

272. Zombie is

[A] virus

[B] worm

[C] hacked computer

[D] trap door

सही उत्तर: zombie

व्याख्या: hacked computer attack के लिए use होता है।

Correct Answer: zombie

Explanation: Compromised system.

273. Paging में fixed size blocks क्या कहलाते हैं?

[A] pages

[B] frames

[C] blocks

[D] segments

273. Fixed size blocks in paging are

[A] pages

[B] frames

[C] blocks

[D] segments

सही उत्तर: frames

व्याख्या: physical memory frames कहलाते हैं।

Correct Answer: frames

Explanation: Physical memory blocks.

274. Deadlock recovery method कौन सा है?

[A] termination

[B] preemption

[C] no preemption

[D] both

274. Deadlock recovery method

[A] termination

[B] preemption

[C] no preemption

[D] both

सही उत्तर: both

व्याख्या: termination और preemption दोनों use होते हैं।

Correct Answer: both

Explanation: Recovery techniques.

275. Process state save/load क्या कहलाता है?

[A] context switch

[B] static

[C] multiprogramming

[D] none

275. Saving and loading process state is

[A] context switch

[B] static

[C] multiprogramming

[D] none

सही उत्तर: context switch

व्याख्या: process switching होता है।

Correct Answer: context switch

Explanation: Process switching.

276. Multiprogramming degree कौन control करता है?

[A] CPU scheduler

[B] context

[C] long term

[D] medium

276. Controls multiprogramming degree

[A] CPU scheduler

[B] context

[C] long term scheduler

[D] medium

सही उत्तर: long term scheduler

व्याख्या: long term scheduler control करता है।

Correct Answer: long term scheduler

Explanation: Load control.

277. Input-output advance technique?

[A] spooling

[B] buffering

[C] swapping

[D] paging

277. I/O transfer technique

[A] spooling

[B] buffering

[C] swapping

[D] paging

सही उत्तर: buffering

व्याख्या: buffering delay smooth करता है।

Correct Answer: buffering

Explanation: I/O smoothing.

278. Binary semaphore क्या है?

[A] 0 or 1

[B] multi

[C] sync only

[D] mutex only

278. Binary semaphore is

[A] 0 or 1

[B] multi

[C] sync only

[D] mutex only

सही उत्तर: 0 or 1

व्याख्या: binary value रखता है।

Correct Answer: 0 or 1

Explanation: Two values only.

279. Fair scheduling क्या है?

[A] no starvation

[B] priority

[C] queue

[D] semaphore

279. Fair scheduling means

[A] no starvation

[B] priority

[C] queue

[D] semaphore

सही उत्तर: no starvation

व्याख्या: process starvation नहीं होती।

Correct Answer: no starvation

Explanation: Fair execution.

280. Double buffering क्या है?

[A] anticipation

[B] buffer swapping

[C] circular

[D] swapping

280. Double buffering is

[A] anticipation

[B] buffer swapping

[C] circular

[D] swapping

सही उत्तर: buffer swapping

व्याख्या: double buffer use होता है।

Correct Answer: buffer swapping

Explanation: Two buffer system.