City Guilds Model Questions Vol1 2024 Information Technology Question 19
Practice objective / multiple choice question 19 from the 2024 City Guilds Model Questions Vol1 Information Technology examination.
An intrusion‑detection system (IDS) has a detection rate of 95 % for real attacks and a false‑positive rate of 2 % (i.e., it raises an alert on 2 % of benign events). On any given day, the prior probability that an attack occurs is 0.001. If the IDS raises an alert on a particular day, what is the probability (as a percentage to two decimal places) that an actual attack is occurring?
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This is City Guilds Model Questions Vol1 2024 Information Technology Question 19. It is one of the objective questions from the 2024 City Guilds Model Questions Vol1 Information Technology examination.
Difficulty level: Hard .
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