What is the role of an IPS?

Question:
What is the role of an IPS?

• detecting and blocking of attacks in real time
• connecting global threat information to Cisco network security devices
• authenticating and validating traffic
• filtering of nefarious websites

Explanation: An intrusion prevention system (IPS) provides real-time detection and blocking of attacks.

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Case 2:

• to detect patterns of malicious traffic by the use of signature files
• to filter traffic based on defined rules and connection context
• to filter traffic based on Layer 7 information
• to enforce access control policies based on packet content

Explanation: For detecting malicious activity, an IPS uses a set of rules called signatures to detect patterns in network traffic.

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