[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.

451. Two-Factor Authentication का उद्देश्य क्या है?

[A] Extra security देना

[B] Network slow करना

[C] Game खेलना

[D] File delete करना

451. 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.

452. Malware का उदाहरण क्या है?

[A] Trojan Horse

[B] Firewall

[C] VPN

[D] Router

452. 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.

453. कौन सा attack system को fake traffic से overload करता है?

[A] DDoS Attack

[B] Encryption

[C] Backup

[D] Compression

453. Which attack overloads system with fake traffic?

[A] DDoS Attack

[B] Encryption

[C] Backup

[D] Compression

सही उत्तर: DDoS Attack

व्याख्या: DDoS attack system को down कर देता है।

Correct Answer: DDoS Attack

Explanation: It floods server with requests.

454. Rootkit का मुख्य उद्देश्य क्या है?

[A] System में hidden access रखना

[B] File delete करना

[C] Game खेलना

[D] Network improve करना

454. What is the main purpose of Rootkit?

[A] Hidden system access

[B] Delete files

[C] Play games

[D] Improve network

सही उत्तर: System में hidden access रखना

व्याख्या: Rootkit stealth access देता है।

Correct Answer: Hidden system access

Explanation: It hides attacker presence.

455. DNS Spoofing का उद्देश्य क्या है?

[A] Fake website पर redirect करना

[B] System update करना

[C] Game खेलना

[D] File backup करना

455. What is the purpose of DNS Spoofing?

[A] Redirect to fake website

[B] System update

[C] Play games

[D] Backup files

सही उत्तर: Fake website पर redirect करना

व्याख्या: DNS spoofing users को गलत site पर भेजता है।

Correct Answer: Redirect to fake website

Explanation: It manipulates DNS records.

456. Packet Sniffing क्या करता है?

[A] Network traffic capture करता है

[B] Game खेलता है

[C] File delete करता है

[D] System update करता है

456. What does Packet Sniffing do?

[A] Captures network traffic

[B] Plays games

[C] Deletes files

[D] Updates system

सही उत्तर: Network traffic capture करता है

व्याख्या: Sniffing packets analyze करता है।

Correct Answer: Captures network traffic

Explanation: It monitors data packets.

457. Firewall का मुख्य कार्य क्या है?

[A] Unauthorized access रोकना

[B] Game चलाना

[C] File delete करना

[D] Music चलाना

457. 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 network.

458. 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

458. 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.

459. Phishing attack क्या है?

[A] Fake email से data चोरी करना

[B] System update करना

[C] Game खेलना

[D] File backup करना

459. 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 links use करता है।

Correct Answer: Steal data via fake emails

Explanation: It tricks users.

460. 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

460. 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.