Discuss the various methods of intrusion detection and prevention systems (IDPS) in network security.

Explain the definition of the word "firewall" in terms of system privacy, and explain how it is employed in different network topologies.

What is meant by "intrusion detection"? Can you explain the classification scheme used by IDSs?

Are methods for intrusion detection and prevention still applicable to the state of the art in terms of internet security?

On the basis of the detection methodologies employed, intrusion detection and prevention systems (IDPS) can be divided into two categories:

Explain the meaning of the term "firewall" in relation to network security, as well as how it is used in a number of different network topologies, and offer a justification for its need.

What is the role of an Intrusion Detection System (IDS) in network security, and how does it differ from a firewall?

On the basis of the mechanism used to identify intrusions, there are two types of intrusion detection and prevention systems (IDPS).

What is the vulnerability(s) demonstrated by using Intrusion Detection?

When it comes to protecting vehicular communications or vehicle-to-vehicle communications, what security techniques/mechanisms may be employed? * What follows is a time estimate for how long it takes to encrypt and decrypt a message using each security technique/mechanism.