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Cisco Exam 300-720 Topic 15 Question 91 Discussion

Actual exam question for Cisco's 300-720 exam
Question #: 91
Topic #: 15
[All 300-720 Questions]

The CEO sent an email indicating that all emails containing a string of 123ABCDEFGHJ cannot be delivered and must be sent into quarantine for further inspection. Given the requirement, which regular expression should be used to match on that criteria?

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Suggested Answer: B

A regular expression is a sequence of characters that defines a search pattern for text. To match a string of 123ABCDEFGHJ, you need to use the following regular expression: d{3}[A-Z]{9}. This expression means that the string must start with three digits (d{3}), followed by nine uppercase letters ([A-Z]{9}). This expression will match any string that has the same format as 123ABCDEFGHJ. Reference =User Guide for AsyncOS 12.0 for Cisco Email Security Appliances - GD (General Deployment) - Regular Expressions [Cisco Secure Email Gateway] - Cisco


by Louann at Aug 23, 2024, 02:10 AM

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Lonny
3 months ago
I think the answer is D) {3}\d{9}[A-Z], as it specifies exactly 3 digits followed by 9 letters
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Lindsey
3 months ago
But wouldn't using \\D instead of \d match any non-digit character, which includes letters?
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Twanna
3 months ago
I disagree, I believe the correct answer is B) \d{3}[A-Z]{9}
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Lindsey
3 months ago
I think the answer is A) \\D{3}[A-Z]{9}
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Felice
3 months ago
I'm going with B. The question is pretty straightforward, and that regex pattern seems to fit the bill perfectly.
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Alyce
3 months ago
Haha, I bet the CEO is having a field day with all these 'quarantined' emails. Option B is the way to go, no doubt about it.
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Maile
2 months ago
I think so too, option B is the way to go for sure.
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Antonio
2 months ago
I agree, option B is the correct regular expression to match the criteria.
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Vivienne
3 months ago
Option B looks good to me. Using the \\d{3} pattern to match the 123 and then [A-Z]{9} to match the 9 uppercase letters.
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Ashlee
3 months ago
Yeah, I agree. It seems to match the criteria specified by the CEO.
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Erinn
3 months ago
I think option B is the correct one.
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Chan
3 months ago
Hmm, I think B is the correct answer. The question says the string should be 123ABCDEFGHJ, and the pattern \\d{3}[A-Z]{9} matches that criteria.
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Jacqueline
3 months ago
I'm not sure, but C doesn't seem to match the criteria given in the question. It doesn't start with 123.
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Micaela
3 months ago
I think A might be the correct answer. It matches the pattern of 123 followed by 9 uppercase letters.
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Page
3 months ago
I agree, B seems to be the correct answer. It matches the criteria specified in the question.
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