Traffic Management Filters: Flow-Based vs. Non-Flow Based
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Questions and Answers

What is the purpose of creating a Traffic Management Filter (TMF) to trust vulnerability scanners or internal IT monitoring scripts?

  • To avoid unnecessary events and consumption of inspection resources (correct)
  • To overshadow actual attacks
  • To consume inspection resources
  • To block unnecessary events and streams

How can the use of Traffic Management Filters (TMFs) benefit a system?

  • By generating events to track traffic
  • By increasing the consumption of inspection resources
  • By reducing inspection overheads and performance protection alerts (correct)
  • By causing unnecessary events

In what direction does the traffic flow for the network scanner located at 192.168.1.200 when passing through IPS?

  • In both directions A to B and B to A (correct)
  • Segment 1A to 1B
  • Segment 6B to 6A
  • Segment 1B to 1A

What is the reason for creating a 4-way trust instead of a single rule for the network scanner?

<p>To catch all possible directions in the environment for both scan and the response (B)</p> Signup and view all the answers

What does a Traffic Management Filter (TMF) use when ordering its rules?

<p>First match (B)</p> Signup and view all the answers

What type of traffic did the staff initially use Exceptions on attack filters for?

<p>Web server traffic (D)</p> Signup and view all the answers

What is the main consequence of Trusting all traffic to and from a network scanner?

<p>Reduced performance protection alerts (D)</p> Signup and view all the answers

How does creating a Traffic Management Filter (TMF) for trust help in protecting web servers?

<p>By reducing unnecessary resource consumption and events related to monitoring scripts (A)</p> Signup and view all the answers

What is the main focus of flow-based inspection filters?

<p>Inspecting packet headers and payload data (D)</p> Signup and view all the answers

What are non-flow-based inspection filters also known as?

<p>User-defined filters (D)</p> Signup and view all the answers

Which type of filter looks at the overall behavior of traffic over time?

<p>Algorithmic filters (C)</p> Signup and view all the answers

What is the primary focus of header-based filters?

<p>Examining IP header information (A)</p> Signup and view all the answers

Which type of filter specifically focuses on detecting vulnerabilities?

<p>Vulnerability filters (B)</p> Signup and view all the answers

What do reconnaissance filters primarily aim to detect?

<p>Port scans and host sweeps (B)</p> Signup and view all the answers

Which type of filter looks at the IP header for detecting specific types of traffic?

<p>Header-based filters (A)</p> Signup and view all the answers

What is the distinguishing feature of flow-based inspection filters compared to non-flow-based ones?

<p>They inspect packet headers and payload data (C)</p> Signup and view all the answers

What is the purpose of creating a 4-way trust for traffic management filters in this scenario?

<p>To ensure that all possible directions of traffic are accounted for (C)</p> Signup and view all the answers

What does creating a 'virtual pipe' achieve when using rate-limiting?

<p>It groups together different types of traffic for easier management (A)</p> Signup and view all the answers

In what scenario would it be advisable to create multiple rules instead of a single rule for traffic management?

<p>When the exact flow of traffic through each IPS device is unknown (C)</p> Signup and view all the answers

What happens if you assign the same rate-limiting Action Set to different filters?

<p>The flows matching those filters will share the same bandwidth restriction (D)</p> Signup and view all the answers

Why might it be necessary to create two Action Sets with different names but the same rate limit value?

<p>To ensure that certain types of traffic have their own dedicated bandwidth restriction (B)</p> Signup and view all the answers

What is the benefit of using a 4-way trust instead of a single rule for traffic management?

<p>It ensures that all possible directions of traffic are included (B)</p> Signup and view all the answers

What is the purpose of assigning a rate-limiting Action Set to a Filter?

<p>To group together different types of traffic under one limitation (C)</p> Signup and view all the answers

When is it advisable to create multiple rules for traffic management?

<p>When there are variations in how the traffic traverses each IPS device (B)</p> Signup and view all the answers

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