Network Security

Question 1

What are the types of firewalls and their functions?

Answer 1

Packet-filtering, stateful inspection, proxy, and next-gen firewalls control traffic based on rules, inspect traffic states, act as intermediaries, and provide advanced security features, respectively.

Question 2

What are the different types of VPNs?

Answer 2

Site-to-Site VPNs connect entire networks, and Remote Access VPNs allow individual users to connect securely to a network.

Question 3

What are common encryption protocols used in network security?

Answer 3

SSL/TLS, IPsec, WPA2/WPA3 for Wi-Fi encryption.

Question 4

What is the difference between IDS and IPS?

Answer 4

IDS (Intrusion Detection System) monitors and alerts on suspicious activity, while IPS (Intrusion Prevention System) can actively block or mitigate the activity.

Question 5

What are common authentication protocols used in networking?

Answer 5

RADIUS, TACACS+, Kerberos, and 802.1X.

Question 6

What are examples of social engineering attacks?

Answer 6

Phishing, spear phishing, pretexting, baiting, and tailgating.

Question 7

Why are security policies important in networking?

Answer 7

They establish guidelines for securing network resources, defining acceptable use, and ensuring compliance with regulations.