Paloalto Networks Practitioner Exam With Confidence Using Practice Dumps

IDSs and IPSs also can be classified as knowledge-based (or signature-based) or behavior-based (or statistical anomaly-based) systems:

● A knowledge-based system uses a database of known vulnerabilities and attack profiles

to identify intrusion attempts. These types of systems have lower false-alarm rates than

behavior-based systems but must be continually updated with new attack signatures to

be effective.

● A behavior-based system uses a baseline of normal network activity to identify unusual

patterns or levels of network activity that may be indicative of an intrusion attempt.

These types of systems are more adaptive than knowledge-based systems and therefore

may be more effective in detecting previously unknown vulnerabilities and attacks, but they have a much higher false-positive rate than knowledge-based systems

Pharming is an attack that redirects traffic from a legitimate website to a malicious fake website, typically by corrupting the DNS system or modifying host files, with the intent of stealing user credentials or sensitive data.

An Intrusion Prevention System (IPS) includes automated security actions, such as blocking malicious traffic, resetting connections, or alerting administrators when it detects suspicious activity, helping to stop attacks in real time.