[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.
461. Two-Factor Authentication का उद्देश्य क्या है?
[A] Extra security देना
[B] Network slow करना
[C] Game खेलना
[D] File delete करना
461. What is the purpose of Two-Factor Authentication?
[A] Provide extra security
[B] Slow network
[C] Play games
[D] Delete files
सही उत्तर: Extra security देना
व्याख्या: 2FA login secure करता है।
Correct Answer: Provide extra security
Explanation: It adds verification layer.
462. Malware का उदाहरण क्या है?
[A] Trojan Horse
[B] Firewall
[C] VPN
[D] Router
462. What is an example of Malware?
[A] Trojan Horse
[B] Firewall
[C] VPN
[D] Router
सही उत्तर: Trojan Horse
व्याख्या: Trojan एक malicious software है।
Correct Answer: Trojan Horse
Explanation: Malware includes harmful programs.
463. कौन सा attack encrypted communication को बीच में intercept करता है?
[A] Man-in-the-Middle Attack
[B] Backup Attack
[C] Compression Attack
[D] Formatting Attack
463. Which attack intercepts encrypted communication?
[A] Man-in-the-Middle Attack
[B] Backup Attack
[C] Compression Attack
[D] Formatting Attack
सही उत्तर: Man-in-the-Middle Attack
व्याख्या: MITM attack data communication को intercept करता है।
Correct Answer: Man-in-the-Middle Attack
Explanation: It captures communication between two parties.
464. Digital Signature का मुख्य उपयोग क्या है?
[A] Data authenticity verify करना
[B] Game खेलना
[C] File delete करना
[D] Network slow करना
464. What is the main use of Digital Signature?
[A] Verify data authenticity
[B] Play games
[C] Delete files
[D] Slow network
सही उत्तर: Data authenticity verify करना
व्याख्या: Digital signature verify करता है कि sender genuine है।
Correct Answer: Verify data authenticity
Explanation: It ensures sender identity.
465. Encryption का मुख्य उद्देश्य क्या है?
[A] Data को secure बनाना
[B] Data delete करना
[C] Game चलाना
[D] Network बंद करना
465. What is the main purpose of Encryption?
[A] Secure data
[B] Delete data
[C] Play games
[D] Stop network
सही उत्तर: Data को secure बनाना
व्याख्या: Encryption data को unreadable बनाता है।
Correct Answer: Secure data
Explanation: It protects confidentiality.
466. Symmetric Encryption में क्या उपयोग होता है?
[A] Same key for encryption and decryption
[B] Two different keys
[C] No key
[D] Hardware key only
466. What is used in Symmetric Encryption?
[A] Same key
[B] Two keys
[C] No key
[D] Hardware key
सही उत्तर: Same key for encryption and decryption
व्याख्या: Symmetric encryption में एक ही key होती है।
Correct Answer: Same key
Explanation: It uses single secret key.
467. Asymmetric Encryption में क्या होता है?
[A] Public और Private key
[B] Same key
[C] No key
[D] Hardware key
467. What is used in Asymmetric Encryption?
[A] Public and Private key
[B] Same key
[C] No key
[D] Hardware key
सही उत्तर: Public और Private key
व्याख्या: Asymmetric encryption दो keys use करता है।
Correct Answer: Public and Private key
Explanation: It uses key pair system.
468. Hashing का मुख्य उद्देश्य क्या है?
[A] Data integrity check करना
[B] Game खेलना
[C] File delete करना
[D] Network बंद करना
468. What is the main purpose of Hashing?
[A] Check data integrity
[B] Play games
[C] Delete files
[D] Stop network
सही उत्तर: Data integrity check करना
व्याख्या: Hashing data change detect करता है।
Correct Answer: Check data integrity
Explanation: It ensures no modification.
469. Firewall किस layer पर काम करता है?
[A] Network and Transport Layer
[B] Only Physical Layer
[C] Only Application Layer
[D] Only Data Layer
469. At which layer does Firewall work?
[A] Network and Transport Layer
[B] Physical Layer only
[C] Application Layer only
[D] Data Layer only
सही उत्तर: Network and Transport Layer
व्याख्या: Firewall multiple layers पर filtering करता है।
Correct Answer: Network and Transport Layer
Explanation: It filters network traffic.
470. MAC Address का उपयोग क्या है?
[A] Device identification
[B] Data encryption
[C] File deletion
[D] Game control
470. What is the use of MAC Address?
[A] Device identification
[B] Data encryption
[C] File deletion
[D] Game control
सही उत्तर: Device identification
व्याख्या: MAC address device uniquely identify करता है।
Correct Answer: Device identification
Explanation: It identifies network devices.