[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.
181. Deadlock prevention में क्या रोकना होता है?
[A] mutual exclusion
[B] hold and wait
[C] circular wait
[D] no preemption
181. Deadlock prevention prevents
[A] Mutual exclusion
[B] Hold and wait
[C] Circular waits
[D] No preemption
सही उत्तर: Circular waits
व्याख्या: circular wait को रोकना जरूरी है।
Correct Answer: Circular waits
Explanation: Prevents circular wait condition.
182. Paging और segmentation के बारे में कथन
[A] partition
[B] memory management
[C] disk
[D] all
182. Paging and segmentation statement refers to
[A] Partition management
[B] Memory management
[C] Disk management
[D] All
सही उत्तर: Memory management
व्याख्या: यह memory management से संबंधित है।
Correct Answer: Memory management
Explanation: Both are memory management techniques.
183. मुख्य मेमोरी को प्रक्रियाओं के बीच साझा करने और आवंटित करने की प्रक्रिया क्या कहलाती है?
[A] Partition management
[B] Memory management
[C] Disk management
[D] All of the above
183. Involves treating main memory as a resource to be allocated among processes
[A] Partition management
[B] Memory management
[C] Disk management
[D] All of the above
सही उत्तर: Memory management
व्याख्या: Main memory को processes के बीच manage करना memory management है।
Correct Answer: Memory management
Explanation: Managing main memory among processes.
184. Main memory और disk memory के बारे में सही कथन क्या है?
[A] virtual-real
[B] virtual-virtual
[C] real-virtual
[D] imaginary-real
184. A process in main memory is called and in disk is called
[A] Virtual memory
[B] True memory
[C] Real memory
[D] Imaginary memory
सही उत्तर: real memory, virtual memory
व्याख्या: main memory = real, disk = virtual memory होता है।
Correct Answer: Real memory, virtual memory
Explanation: Disk stores virtual memory.
185. Process scheduling में कौन नए process को admit करता है?
[A] long term
[B] medium term
[C] short term
[D] none
185. Which scheduling admits new processes?
[A] Long term
[B] Medium term
[C] Short term
[D] None
सही उत्तर: long term scheduling
व्याख्या: Long term scheduler admission control करता है।
Correct Answer: long term scheduling
Explanation: Admits processes to system.
186. Ready process को CPU कौन देता है?
[A] long term
[B] medium term
[C] short term
[D] none
186. Which scheduling selects next process for CPU?
[A] Long term
[B] Medium term
[C] Short term
[D] None
सही उत्तर: short term scheduling
व्याख्या: CPU allocation short term scheduler करता है।
Correct Answer: short term scheduling
Explanation: Selects next process.
187. Seek time + rotational delay को क्या कहते हैं?
[A] reached time
[B] access time
[C] arrived time
[D] common time
187. Sum of seek time and rotational delay is called
[A] reached time
[B] access time
[C] arrived time
[D] common time
सही उत्तर: access time
व्याख्या: दोनों मिलकर access time बनाते हैं।
Correct Answer: access time
Explanation: Total disk access time.
188. Disk request queue को sub queues में divide करने वाली policy?
[A] SCAN
[B] C-SCAN
[C] N-Step SCAN
[D] FSCAN
188. Policy that segments disk queue into sub queues
[A] SCAN
[B] C-SCAN
[C] N-Step SCAN
[D] FSCAN
सही उत्तर: N-Step SCAN
व्याख्या: यह queue को छोटे हिस्सों में बांटता है।
Correct Answer: N-Step SCAN
Explanation: Divides request queue.
189. Operating system के functions कौन से हैं?
[A] i ii iii iv v only
[B] i ii iii iv only
[C] ii iii iv v only
[D] all
189. Functions of operating system are
[A] error recovery
[B] I/O
[C] parallel operation
[D] hardware sharing
सही उत्तर: All
व्याख्या: सभी OS functions हैं।
Correct Answer: All
Explanation: All are OS functions.
190. File management में क्या शामिल है?
[A] creation deletion
[B] disk scheduling
[C] directory creation
[D] mapping
190. File management includes
[A] file creation
[B] disk scheduling
[C] directory creation
[D] mapping
सही उत्तर: i iii iv only
व्याख्या: file creation, directory और mapping शामिल हैं।
Correct Answer: i iii iv only
Explanation: File related operations.