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LPI 101-500 Exam - Topic 4 Question 110 Discussion

Actual exam question for LPI's 101-500 exam

Question #: 110
Topic #: 4

[All 101-500 Questions]

What does the ? symbol within regular expressions represent?

AMatch the preceding qualifier one or more times.

BMatch the preceding qualifier zero or more times.

CMatch the preceding qualifier zero or one times.

DMatch a literal ?character.

Show Suggested Answer

Suggested Answer: C

by Nada at Apr 08, 2025, 11:42 AM

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Lennie

6 months ago

Nope, definitely C! It's a common mistake though.

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Shayne

6 months ago

Wait, I thought it was B? Zero or more times?

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Britt

7 months ago

Really? I always thought it was for matching one or more times!

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Arminda

7 months ago

Totally agree, C is the right answer!

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Kimbery

7 months ago

It's C! Zero or one times.

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Chaya

7 months ago

I’m pretty sure ? is not for one or more times, but I can’t recall if it’s zero or one. I should have reviewed more before the exam!

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Daryl

8 months ago

I feel like I might confuse ? with * sometimes, but I think it’s about matching zero or one occurrences.

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Santos

8 months ago

I remember practicing a question about quantifiers, and I think ? is related to matching zero or one times.

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Wynell

8 months ago

I think the ? symbol matches the preceding character zero or one times, but I'm not completely sure.

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Ariel

8 months ago

I'm not totally confident, but I think the ? symbol matches the preceding qualifier one or more times. That sounds right, so I'll go with option A.

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Mose

8 months ago

Ah, I remember learning this in class. The ? symbol means the preceding qualifier can match zero or more times. So the correct answer is B.

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Laurel

9 months ago

Hmm, I'm a bit confused on this one. I know the ? symbol is used for quantifiers, but I can't remember if it's for zero or one, or one or more. I'll have to think this through carefully.

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Macy

9 months ago

I'm pretty sure the ? symbol represents matching the preceding qualifier zero or one times, so I'll go with option C.

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Herminia

1 year ago

Wait, is the ? symbol a wildcard that matches anything? I'm just kidding, I know it's for matching the preceding qualifier zero or one times. Easy peasy!

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Virgina

12 months ago

D) Match a literal ?character.

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Lamonica

12 months ago

C) Match the preceding qualifier zero or one times.

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Jovita

1 year ago

B) Match the preceding qualifier zero or more times.

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Marg

1 year ago

A) Match the preceding qualifier one or more times.

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Lea

1 year ago

Option C is the way to go here. The ? symbol is a greedy quantifier, and that's exactly what the question is asking for.

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Oliva

1 year ago

Yes, that's correct. It's important to understand the different quantifiers in regular expressions.

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Roxanne

1 year ago

I agree, the ? symbol is a greedy quantifier so it matches zero or one times.

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Johnna

1 year ago

I think the answer is C) Match the preceding qualifier zero or one times.

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Brittni

1 year ago

I'm pretty sure it means matching the preceding qualifier one or more times.

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Lauryn

1 year ago

I believe it actually represents matching the preceding qualifier zero or more times.

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Christiane

1 year ago

Haha, I remember when I thought the ? symbol meant 'match a literal question mark.' Boy, was I in for a surprise on the exam!

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Lauran

1 year ago

C) Match the preceding qualifier zero or one times.

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Alease

1 year ago

B) Match the preceding qualifier zero or more times.

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Arlen

1 year ago

A) Match the preceding qualifier one or more times.

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Hannah

1 year ago

The ? symbol definitely represents matching the preceding qualifier zero or one times. That's just basic regex knowledge!

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Sabina

1 year ago

I think the ? symbol represents matching the preceding qualifier zero or one times.

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