Understanding Network Security Fundamentals

Imagine Aria and David have set up a small office network. What is the primary function of a firewall they installed to protect their network?

• To increase internet speed.

• To serve as a physical barrier against network intrusion.

• To monitor and control incoming and outgoing network traffic based on predetermined security rules.

• To detect and remove viruses and other malware.

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

• To increase the speed of the network

• To block unauthorized access while permitting outward communication

• To encrypt data for secure transmission

• To monitor network performance

Which of the following is a common method used to secure a wireless network?

• Using a wired connection

• Disabling the SSID broadcast

• Increasing the signal strength

• Changing the network name frequently

What does the term "phishing" refer to in the context of network security?

• A method of encrypting data

• A technique used to steal sensitive information by pretending to be a trustworthy entity

• A type of malware that replicates itself

• A process of scanning networks for vulnerabilities

Which protocol is commonly used to secure data transmission over the internet?

• HTTP

• FTP

• HTTPS

• SMTP