[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.

251. Multiprogramming का disadvantage कौन सा नहीं है?

[A] increased throughput

[B] response time

[C] overhead decrease

[D] job priority

251. NOT advantage of multiprogramming

[A] increased throughput

[B] short response

[C] decreased overhead

[D] priority jobs

सही उत्तर: decreased OS overhead

व्याख्या: यह advantage नहीं है।

Correct Answer: decreased OS overhead

Explanation: Not a valid advantage.

252. Process state कौन सा नहीं है?

[A] blocked

[B] running

[C] ready

[D] privileged

252. Which is NOT process state?

[A] Blocked

[B] Running

[C] Ready

[D] Privileged

सही उत्तर: privileged

व्याख्या: यह process state नहीं है।

Correct Answer: Privileged

Explanation: Not a process state.

253. कंप्यूटर सुरक्षा में Integrity का क्या मतलब है?

[A] confidentiality

[B] integrity

[C] availability

[D] authenticity

253. Integrity in computer security means

[A] confidentiality

[B] integrity

[C] availability

[D] authenticity

सही उत्तर: integrity

व्याख्या: केवल authorized user ही data modify कर सकता है।

Correct Answer: integrity

Explanation: Only authorized parties can modify data.

254. Confidentiality का क्या अर्थ है?

[A] read access only

[B] modify access

[C] delete access

[D] full access

254. Confidentiality means

[A] confidentiality

[B] integrity

[C] availability

[D] authenticity

सही उत्तर: confidentiality

व्याख्या: केवल authorized reading access होता है।

Correct Answer: confidentiality

Explanation: Only authorized reading allowed.

255. Security threats कौन-कौन से हैं?

[A] interruption;interception;modification;creation

[B] interception;modification;creation;fabrication

[C] interruption;interception;modification;fabrication

[D] all

255. Types of security threats are

[A] interruption;interception;modification;creation

[B] interception;modification;creation;fabrication

[C] interruption;interception;modification;fabrication

[D] all

सही उत्तर: interruption, interception, modification, fabrication

व्याख्या: सभी threats होते हैं।

Correct Answer: all

Explanation: All types of threats.

256. Host program के बिना कौन सा malicious program चलता है?

[A] trap doors

[B] trojan horse

[C] virus

[D] worm

256. Independent malicious program is

[A] trap doors

[B] trojan horse

[C] virus

[D] worm

सही उत्तर: worm

व्याख्या: worm independent program है।

Correct Answer: worm

Explanation: Works without host program.

257. Special sequence trigger होने वाला code क्या है?

[A] trap door

[B] trojan horse

[C] logic bomb

[D] virus

257. Code triggered by special input sequence is

[A] trap door

[B] trojan horse

[C] logic bomb

[D] virus

सही उत्तर: trap door

व्याख्या: special condition पर trigger होता है।

Correct Answer: trap door

Explanation: Hidden trigger code.

258. Certain condition पर explode होने वाला code क्या है?

[A] trap door

[B] trojan horse

[C] logic bomb

[D] virus

258. Code that explodes on condition is

[A] trap door

[B] trojan horse

[C] logic bomb

[D] virus

सही उत्तर: logic bomb

व्याख्या: condition पर activate होता है।

Correct Answer: logic bomb

Explanation: Triggered malicious code.

259. कौन replicate नहीं करता?

[A] trojan horse

[B] virus

[C] worm

[D] zombie

259. Which does not replicate automatically?

[A] trojan horse

[B] virus

[C] worm

[D] zombie

सही उत्तर: trojan horse

व्याख्या: Trojan self replicate नहीं करता।

Correct Answer: trojan horse

Explanation: Does not self replicate.

260. Unauthorized function indirectly कौन करता है?

[A] zombie

[B] worm

[C] trojan horse

[D] logic bomb

260. Programs used indirectly by unauthorized user are

[A] zombie

[B] worm

[C] trojan horse

[D] logic bomb

सही उत्तर: trojan horse

व्याख्या: Trojan hidden tasks करता है।

Correct Answer: trojan horse

Explanation: Hidden functionality.