[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.

121. Which utility software protects system from hackers?

[A] एंटीवायरस

[B] फायरवॉल

[C] AUP

[D] बैकअप विजार्ड

121. Which utility software protects system from hackers?

[A] Antivirus

[B] Firewall

[C] AUP

[D] Backup wizard

सही उत्तर: फायरवॉल

व्याख्या: फायरवॉल हैकर्स से सुरक्षा देता है।

Correct Answer: Firewall

Explanation: Firewall protects from unauthorized access.

122. Main functions of system utility are

[A] डिस्क क्लीनअप

[B] डिस्क डिफ्रैगमेंटेशन

[C] सिस्टम रिस्टोर और कंप्रेशन

[D] सभी

122. Main functions of system utility are

[A] Disk cleanup

[B] Disk defragmentation

[C] System restore and compression

[D] All of the above

सही उत्तर: सभी

व्याख्या: ये सभी सिस्टम यूटिलिटी के कार्य हैं।

Correct Answer: All of the above

Explanation: All are system utility functions.

123. Full form of VIRUS is

[A] Very Information Record User Search

[B] Very Interchanged Result Until Source

[C] Vital Information Resources Under Siege

[D] Vital Information Resources Under Search

123. Full form of VIRUS is

[A] Very Information Record User Search

[B] Very Interchanged Result Until Source

[C] Vital Information Resources Under Siege

[D] Vital Information Resources Under Search

सही उत्तर: Vital Information Resources Under Siege

व्याख्या: यह सही फुल फॉर्म है।

Correct Answer: Vital Information Resources Under Siege

Explanation: Correct expansion of VIRUS.

124. Virus that attacks antivirus program is called

[A] वर्म

[B] रेट्रोवायरस

[C] ट्रोजन

[D] घोस्ट वायरस

124. Virus that attacks antivirus program is called

[A] Worm

[B] Retrovirus

[C] Trojan

[D] Ghost virus

सही उत्तर: रेट्रोवायरस

व्याख्या: यह एंटीवायरस को टारगेट करता है।

Correct Answer: Retrovirus

Explanation: Attacks antivirus software.

125. Software used to reduce file size is

[A] डिस्क क्लीनअप

[B] फाइल कंप्रेशन

[C] डिस्क फ्रैगमेंटेशन

[D] ट्रबलशूटिंग

125. Software used to reduce file size is

[A] Disk cleanup

[B] File compression

[C] Disk fragmentation

[D] Troubleshooting program

सही उत्तर: फाइल कंप्रेशन

व्याख्या: यह फाइल का साइज कम करता है।

Correct Answer: File compression

Explanation: Reduces file size.

126. Windows utility that removes temporary internet files is

[A] डिस्क डिफ्रैगमेंटर

[B] डिस्क क्लीनअप

[C] बैकअप विजार्ड

[D] सभी

126. Windows utility that removes temporary internet files is

[A] Disk defragmenter

[B] Disk cleanup

[C] Backup and Restore wizard

[D] All of the above

सही उत्तर: डिस्क क्लीनअप

व्याख्या: यह अस्थायी फाइलें हटाता है।

Correct Answer: Disk cleanup

Explanation: Removes temporary files.

127. Utility used to update all device drivers is

[A] ड्राइवर अपडेट

[B] विंडोज अपडेट

[C] डिवाइस मैनेजर

[D] DVS

127. Utility used to update all device drivers is

[A] Driver update

[B] Windows update

[C] Device manager

[D] Driver Verification Service

सही उत्तर: विंडोज अपडेट

व्याख्या: यह ड्राइवर अपडेट करता है।

Correct Answer: Windows update

Explanation: Updates system drivers.

128. Windows utility that optimizes disk by rearranging files is

[A] बैकअप

[B] डिस्क रिस्टोर

[C] डिस्क डिफ्रैगमेंटर

[D] डिस्क क्लीनअप

128. Windows utility that optimizes disk by rearranging files is

[A] Backup

[B] Disk restore

[C] Disk defragmenter

[D] Disk cleanup

सही उत्तर: डिस्क डिफ्रैगमेंटर

व्याख्या: यह फाइलों को व्यवस्थित करता है।

Correct Answer: Disk defragmenter

Explanation: Optimizes disk performance.

129. Main functions of system utilities include

[A] डेटा रिकवरी

[B] बैकअप

[C] वायरस प्रोटेक्शन

[D] सभी

129. Main functions of system utilities include

[A] Data recovery

[B] Backup

[C] Virus protection

[D] All of the above

सही उत्तर: सभी

व्याख्या: ये सभी सिस्टम यूटिलिटी के कार्य हैं।

Correct Answer: All of the above

Explanation: All functions included.

130. Backup containing entire system files is called

[A] रिस्टोरेशन

[B] बूटस्ट्रैप

[C] डिफरेंशियल

[D] फुल

130. Backup containing entire system files is called

[A] restoration

[B] bootstrap

[C] differential

[D] full

सही उत्तर: फुल

व्याख्या: इसमें पूरा सिस्टम डेटा होता है।

Correct Answer: full

Explanation: Full backup contains all system data.