Fortinet
FCP_FWB_AD-7.4 · Question #74
What potential risk is there in using a greedy regular expression match in URL rewriting, when large amounts of content need to be matched?
The correct answer is B. It increases RAM usage resulting in performance degradation. Greedy regular expressions can consume excessive RAM when processing large content, which may lead to performance degradation on FortiWeb.
Policy Configuration
Question
What potential risk is there in using a greedy regular expression match in URL rewriting, when large amounts of content need to be matched?
Options
- AIt requires all FortiWeb resources, and interrupts traffic processing.
- BIt increases RAM usage resulting in performance degradation.
- CIt is not reliable as it might not scan all the content.
- DIt increases disk access related CPU load resulting in premature disk failure.
How the community answered
(35 responses)- A3% (1)
- B74% (26)
- C9% (3)
- D14% (5)
Explanation
Greedy regular expressions can consume excessive RAM when processing large content, which may lead to performance degradation on FortiWeb.
Topics
#URL rewriting#greedy regex#RAM usage#performance
Community Discussion
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