Understanding Cyber Security Technologies

What is the primary purpose of a firewall in a network?

• To increase the speed of the network

• To block unauthorised access while permitting outward communication

• To store data securely

• To provide wireless connectivity

Which of the following is a common method used to encrypt data?

• Phishing

• RSA

• SQL Injection

• DDoS

What does the term "phishing" refer to in cyber security?

• A method of encrypting data

• A type of malware that replicates itself

• A technique used to trick users into providing sensitive information

• A process of scanning networks for vulnerabilities

Which device is used to connect multiple networks and direct data packets between them?

• Switch

• Router

• Modem

• Hub

What is the main function of an Intrusion Detection System (IDS)?

• To prevent data loss

• To detect and alert on potential security breaches

• To encrypt sensitive data

• To manage user access rights

Which of the following is a type of malware that demands payment to restore access to the victim's data?

• Spyware

• Ransomware

• Adware

• Trojan

What is the purpose of a Virtual Private Network (VPN)?

• To increase internet speed

• To provide a secure connection over a public network

• To block malware

• To manage network traffic

Which of the following is a protocol used to securely transfer files over the internet?

• FTP

• HTTP

• SFTP

• SMTP

What is the role of a proxy server in a network?

• To store data

• To act as an intermediary for requests from clients seeking resources from other servers

• To provide wireless connectivity

• To encrypt data

Which of the following is a security measure that involves verifying the identity of a user or device?

• Encryption

• Authentication

• Firewall

• Backup