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Question 38 - CTAL-TTA discussion

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Consider the following fault attack:

* Force all possible incoming errors from the software/operating system interfaces to the application.

Which of the following is the kind of failure you are looking for when using this attack?

A.
Application crashes when unsupported characters are pasted into an input field.
Answers
A.
Application crashes when unsupported characters are pasted into an input field.
B.
Application crashes when the network is unavailable.
Answers
B.
Application crashes when the network is unavailable.
C.
Application crashes due to a lack of portability.
Answers
C.
Application crashes due to a lack of portability.
D.
Application miscalculates total monthly balance due on credit cards.
Answers
D.
Application miscalculates total monthly balance due on credit cards.
Suggested answer: A

Explanation:

The fault attack described involves forcing all possible incoming errors from software/operating system interfaces. The type of failure being sought is one where the application does not handle erroneous or unexpected input correctly, which can lead to crashes or other unintended behavior. Thus, an application crash when unsupported characters are pasted into an input field is a typical failure that this kind of fault attack would aim to uncover.

asked 18/09/2024
Marcelo Tamaki
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