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# BCS Exam CTFL4 Topic 5 Question 1 Discussion

Actual exam question for BCS's CTFL4 exam
Question #: 1
Topic #: 5
[All CTFL4 Questions]

The following state transition diagram describes the functionality involved in a system using fingerprint and password authentication to log onto a system.

How many distinct states of the system are visible in the above diagram?

The state transition diagram provided shows three distinct states:

Waiting for fingerprint

Waiting for PIN

Each state represents a different stage in the system's operation, with transitions based on user actions and system responses.

Sure, let me explain. In the diagram, there are four separate states that the system can be in - initial, fingerprint authentication, password authentication, and logged in. So, I believe the answer is D) 4.
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Four states, huh? Looks like someone's been playing too much Tetris.
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Hmm, I see your point. Can you explain why you think there are four distinct states?
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3 states? Nah, I'm going with 2. One for fingerprint, one for password. Simple as that.
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Yes, it seems like the diagram only shows 2 states, one for fingerprint and one for password.
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I agree, there are only 2 distinct states in the diagram.
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Wait, is that a fingerprint or a blob of jam? I can never tell the difference.
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I disagree, I believe the answer is D) 4 because there are four distinct states visible in the diagram.
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I count 4 distinct states in the diagram. Easy peasy!
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Yes, I'm sure. There are definitely 4 distinct states in the diagram.
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I counted 3 states, are you sure about 4?
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I agree, I also counted 4 states.
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I think there are 4 distinct states in the diagram.
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I think the answer is C) 3 because there are three distinct states shown in the diagram.
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