[Cyber Security MCQS ]

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

[ Cyber Security MCQS ]

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

401. Phishing attack क्या करता है?

[A] User data चोरी करता है

[B] System update करता है

[C] Network fast करता है

[D] File backup करता है

401. What does Phishing attack do?

[A] Steals user data

[B] Updates system

[C] Speeds network

[D] Backups files

सही उत्तर: User data चोरी करता है

व्याख्या: Phishing fake links use करता है।

Correct Answer: Steals user data

Explanation: It tricks users.

402. Ransomware attack में क्या होता है?

[A] Data encrypt करके ransom मांगा जाता है

[B] Data delete होता है

[C] System upgrade होता है

[D] Game चलता है

402. What happens in Ransomware attack?

[A] Data encrypted and ransom demanded

[B] Data deleted

[C] System upgraded

[D] Game runs

सही उत्तर: Data encrypt करके ransom मांगा जाता है

व्याख्या: Ransomware files lock करता है।

Correct Answer: Data encrypted and ransom demanded

Explanation: It locks files.

403. कौन सा attack network को भारी traffic से overload करता है?

[A] DDoS Attack

[B] Encryption

[C] Backup

[D] Compression

403. Which attack overloads network with traffic?

[A] DDoS Attack

[B] Encryption

[C] Backup

[D] Compression

सही उत्तर: DDoS Attack

व्याख्या: DDoS system resources को exhaust करता है।

Correct Answer: DDoS Attack

Explanation: It floods system with requests.

404. कौन सा malware system को secretly control करता है?

[A] Rootkit

[B] Firewall

[C] VPN

[D] Router

404. Which malware secretly controls system?

[A] Rootkit

[B] Firewall

[C] VPN

[D] Router

सही उत्तर: Rootkit

व्याख्या: Rootkit hidden access देता है।

Correct Answer: Rootkit

Explanation: It hides deep system access.

405. DNS का मुख्य कार्य क्या है?

[A] Domain name को IP में बदलना

[B] File delete करना

[C] Game चलाना

[D] Data encrypt करना

405. What is the main function of DNS?

[A] Convert domain to IP

[B] Delete files

[C] Play games

[D] Encrypt data

सही उत्तर: Domain name को IP में बदलना

व्याख्या: DNS internet navigation में मदद करता है।

Correct Answer: Convert domain to IP

Explanation: DNS resolves domain names.

406. Packet Sniffing का उपयोग क्या है?

[A] Network data capture करना

[B] Game खेलना

[C] File delete करना

[D] System update करना

406. What is Packet Sniffing used for?

[A] Capture network data

[B] Play games

[C] Delete files

[D] Update system

सही उत्तर: Network data capture करना

व्याख्या: Sniffing packets monitor करता है।

Correct Answer: Capture network data

Explanation: It analyzes traffic.

407. Firewall का कार्य क्या है?

[A] Unauthorized access रोकना

[B] Game चलाना

[C] File delete करना

[D] Music चलाना

407. What is the function of Firewall?

[A] Block unauthorized access

[B] Play games

[C] Delete files

[D] Play music

सही उत्तर: Unauthorized access रोकना

व्याख्या: Firewall traffic filter करता है।

Correct Answer: Block unauthorized access

Explanation: Firewall protects system.

408. VPN का उपयोग क्यों किया जाता है?

[A] Secure connection के लिए

[B] Game खेलने के लिए

[C] File delete करने के लिए

[D] System crash करने के लिए

408. Why is VPN used?

[A] Secure connection

[B] Gaming

[C] File deletion

[D] System crash

सही उत्तर: Secure connection के लिए

व्याख्या: VPN encrypted tunnel बनाता है।

Correct Answer: Secure connection

Explanation: VPN hides identity.

409. Phishing attack क्या है?

[A] Fake email से data चोरी करना

[B] System update करना

[C] Game खेलना

[D] File backup करना

409. What is Phishing attack?

[A] Steal data via fake emails

[B] System update

[C] Play games

[D] Backup files

सही उत्तर: Fake email से data चोरी करना

व्याख्या: Phishing fake communication use करता है।

Correct Answer: Steal data via fake emails

Explanation: It tricks users.

410. Ransomware क्या करता है?

[A] Data encrypt करके ransom मांगता है

[B] Data delete करता है

[C] System upgrade करता है

[D] Game चलाता है

410. What does Ransomware do?

[A] Encrypt data and demand ransom

[B] Delete data

[C] Upgrade system

[D] Play games

सही उत्तर: Data encrypt करके ransom मांगता है

व्याख्या: Ransomware files lock करता है।

Correct Answer: Encrypt data and demand ransom

Explanation: It locks files.