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Logical Operations Exam CFR-210 Topic 8 Question 55 Discussion

Actual exam question for Logical Operations's CFR-210 exam

Question #: 55
Topic #: 8

[All CFR-210 Questions]

A security analyst would like to parse through several SQL logs for indicators of compromise. The analyst is aware that none of the fields should contain a string of text longer than 30 characters; however, the analyst is unaware if there are any implemented controls to prevent such an overflow. Which of the following BEST describes the regular expression the analyst should use to find any alphanumeric character string?

A/^[a-zA-Z0-9]{5,30}$/

B/^[a-zA-Z-9]{30}$/

C/^[a-zA-Z]{5,30}$/

D/^[a-Z0-9]{5,30}$/

Show Suggested Answer

Suggested Answer: A

by Graciela at Dec 26, 2023, 02:06 PM

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Gearldine

2 months ago

I'm going with A. It's the only one that matches the 5-30 character range for alphanumeric strings.

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Penney

2 months ago

Ha! D is just silly. Who would use 'a-Z' instead of 'a-zA-Z'? Gotta love these silly distractors.

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Christa

24 days ago

C) /^[a-zA-Z]{5,30}$/

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Latrice

2 months ago

B) /^[a-zA-Z-9]{30}$/

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Kerry

2 months ago

A) /^[a-zA-Z0-9]{5,30}$/

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Joaquin

2 months ago

Hmm, I'm not sure B is right. It only matches 30 characters, not the 5-30 range we're looking for.

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Deeanna

30 days ago

User 3: Yeah, B only matches exactly 30 characters, which is not what we need.

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Annita

1 months ago

User 2: I agree with you, A seems to be the best choice for this scenario.

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Heike

2 months ago

User 1: I think A is the correct option. It matches alphanumeric strings of 5 to 30 characters.

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Melissa

3 months ago

Option A looks good to me. It matches alphanumeric strings between 5 and 30 characters, which is exactly what the analyst needs.

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Derick

1 months ago

User3: Option A seems to be the most suitable for the analyst's needs.

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Patrick

1 months ago

User2: I agree, it matches alphanumeric strings between 5 and 30 characters.

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Rikki

2 months ago

User1: I think option A is the best choice.

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Gilberto

3 months ago

That makes sense, we need to consider both letters and numbers in the string.

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Jamie

3 months ago

I disagree, I believe the correct answer is C) /^[a-zA-Z]{5,30}$/ because we are looking for alphanumeric characters only.

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Gilberto

3 months ago

I think the regular expression should be A) /^[a-zA-Z0-9]{5,30}$/

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Jamika

3 months ago

But wouldn't we want to include numbers as well in the alphanumeric string?

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Glen

3 months ago

I disagree, I believe it should be /^[a-zA-Z]{5,30}$/

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Jamika

3 months ago

I think the regular expression should be /^[a-zA-Z0-9]{5,30}$/

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