Question

Name and describe four firewall screening technologies. How does a firewall compare to a digital certificate as a means of providing a level of security to an organization?

A) Packet filtering, Proxy server, Stateful inspection, Deep packet inspection
B) Antivirus software, Encryption, Intrusion detection system, VPN
C) Authentication, Authorization, Encryption, Network segmentation
D) Password protection, Biometrics, Firewalls, IDS/IPS

Answer 1

Packet filtering, proxy server, stateful inspection, deep packet inspection are four firewall screening technologies. A firewall and a digital certificate serve different purposes in providing security to an organization.

Step-by-step explanation:

Four firewall screening technologies are:

1. Packet filtering: This technology examines each packet of data based on pre-defined rules and either allows or blocks the packet.
2. Proxy server: A proxy server acts as an intermediary between a client and the internet, and it can filter requests and responses to provide an additional layer of security.
3. Stateful inspection: This screening method tracks the state of network connections and inspect all packets to ensure they align with the expected sequence of network traffic.
4. Deep packet inspection: This technology examines the contents of data packets at a deeper level, analyzing the actual application-level data being transmitted.

A firewall and a digital certificate serve different purposes in providing security to an organization. A firewall acts as a barrier between an internal network and the external network, monitoring and controlling incoming and outgoing traffic. On the other hand, a digital certificate provides a means of verifying the authenticity of a website or entity, ensuring secure communication and information exchange.