Which of the following is a method to prevent unauthorized access to a system? MCQ with Answer and Explanation

Which of the following is a method to prevent unauthorized access to a system?
A. Disabling firewalls
B. Sharing login credentials
C. Multi-factor authentication
D. Using default passwords
Answer: Option C
Solution (By JKSSB Mock Tests)
Multi-factor authentication requires users to provide multiple forms of verification, significantly reducing the risk of unauthorized access even if one factor is compromised.

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Practice More Cyber Security Questions

Question #1
What is the function of a security token in multi-factor authentication?
A. To store user passwords
B. To generate a one-time password for authentication
C. To provide a physical key for access
D. To encrypt data

Correct Answer: Option B


Explanation:
A security token, such as a hardware token or a mobile app, generates a one-time password (OTP) that is used as a second factor in authentication, enhancing security.

This question belongs to: Computer Cyber Security
Question #2
What is the purpose of a network firewall in an organization?
A. To provide data backup
B. To manage user accounts
C. To enforce security policies by controlling network traffic
D. To detect and remove malware

Correct Answer: Option C


Explanation:
A network firewall enforces security policies by controlling traffic based on rules, preventing unauthorized access and protecting the network.

This question belongs to: Computer Cyber Security
Question #3
Which type of network security exploit uses a fake wireless router with the exact same SSID label as a corporate office network to trick workers into connecting so the attacker can log their data traffic?
A. DDoS Flood
B. Evil Twin Attack
C. Brute Force Cracking
D. SQL Injection Squeeze

Correct Answer: Option B


Explanation:
An Evil Twin attack clones a legitimate Wi-Fi access point configuration to trick users into connecting, allowing the attacker to monitor network traffic.

This question belongs to: Computer Cyber Security