Issues with Open Source Tools CT-SEC Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A security team is using an open source network intrusion detection system (IDS) to monitor traffic on a high-bandwidth corporate network. The IDS is dropping packets during peak hours, and the team suspects it cannot keep up with the traffic volume. What is the most effective way to address this performance limitation?

   • ADeploy multiple IDS sensors and distribute the network traffic across them using a load balancer or traffic tap.
   • BReduce the number of rules the IDS uses to lower the processing load.
   • CIncrease the IDS sensor's memory and CPU resources.
   • DSwitch to a commercial IDS that is guaranteed to handle the traffic volume.
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A security team is using an open source network scanner to test a large enterprise network with thousands of hosts. The scanner is single-threaded and takes several days to complete a full scan. The team needs to reduce the scan time to meet a compliance deadline, but they cannot change the scan scope or the tool. What is the most effective approach?

   • AIncrease the scanner's priority in the operating system to give it more CPU time.
   • BUse a commercial scanner that supports multi-threading to complete the scan faster.
   • CReduce the number of ports scanned to speed up the scan.
   • DRun multiple instances of the scanner in parallel, each targeting a different subnet of the network.
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   Which of the following is a common feature limitation of open source security testing tools compared to some commercial alternatives?

   • ALack of a graphical user interface (GUI)
   • BLimited support for proprietary protocols or advanced reporting
   • CInability to run on Linux operating systems
   • DRequirement to pay for a license after a trial period
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   Which of the following is a common scalability limitation of open source security testing tools?

   • AThey may consume excessive memory or CPU when scanning large networks
   • BThey cannot be automated
   • CThey cannot be used on cloud-based systems
   • DThey are always slower than commercial tools
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   Which of the following is an effective strategy to mitigate the lack of formal support for an open source security testing tool?

   • ARely solely on the tool's documentation
   • BAvoid using the tool altogether
   • CUse the tool only in non-production environments
   • DPurchase a commercial support contract from a third-party vendor
   Reveal Solution Discussion Select an answer first