City Guilds Model Questions Vol1 2017 Information Technology Question 48
Practice objective / multiple choice question 48 from the 2017 City Guilds Model Questions Vol1 Information Technology examination.
A password policy requires passwords of length 8. Each character can be an uppercase letter (26), a lowercase letter (26), a digit (10) or one of 10 special symbols. A valid password must contain at least one character from each of the four categories. (a) How many different valid passwords are possible? (b) If an attacker can test \(10^{9}\) passwords per second, how long would it take to exhaust the entire space, expressed in days (round to one decimal place)?
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About This Question
This is City Guilds Model Questions Vol1 2017 Information Technology Question 48. It is one of the objective questions from the 2017 City Guilds Model Questions Vol1 Information Technology examination.
Difficulty level: Hard .
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