Question

A(n) _________ is a network device that can be hardware, software, or a combination of both whose purpose is to enforce a security policy across its connections to external networks such as the Interneta. blister packb.entity relationship diagramc.serverd. firewall

Answer 1

Answer: Firewall

Explanation:

Firewall is a security network device that observes and check traffics and resolve if to allow or block a particular traffic according to some set of security rules put in place. Firewall has been in use for over 25years has the first defense in security a network, it can exist as software or hardware and can even be both.

Types of firewall includes :

1. Packet filters.

2. Proxy server firewall.

3. Dynamic packet filtering.

An example of a firewall is hybrid firewall which combines different types of firewalls.