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Python Institute PCAP-31-03 Exam - Topic 5 Question 98 Discussion

Actual exam question for Python Institute's PCAP-31-03 exam

Question #: 98
Topic #: 5

[All PCAP-31-03 Questions]

Which of the following words can be used as a variable name? (Choose two valid names)

Afor

D__pycache__is the name of a built-in variable

Ctrue

Bthe__name__variable content determines the way in which the module was run

Show Suggested Answer

Suggested Answer: D, C

by Elin at Jan 28, 2026, 07:43 PM

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Fletcher

2 months ago

No, that one's invalid. Can't start with a number.

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Mollie

3 months ago

What about "1stVariable"?

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Leanna

3 months ago

Agreed! "user_name" works.

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Karrie

3 months ago

I think "user_name" is valid.

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Francis

5 months ago

Totally agree, "userName" is a classic choice!

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Kati

5 months ago

Wait, can special characters be used?

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Vanesa

5 months ago

I thought you couldn't start with a number?

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Lavonne

5 months ago

Definitely "userName" and "age" are valid!

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Jacquline

5 months ago

You can use letters and numbers in variable names.

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Fallon

5 months ago

Haha, I tried to use "Fluffy the Cat" as a variable name. Didn't end well.

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Jina

6 months ago

I tried to use "my variable" but it didn't work. Guess spaces aren't allowed.

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Tamala

6 months ago

123_variable is not a valid variable name.

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Vince

6 months ago

myVariable is a good choice.

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Tresa

6 months ago

x_123 is a valid variable name.

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Dannette

6 months ago

I think we had a similar question in our last quiz, and I remember something about reserved keywords. We should avoid those!

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Alyssa

6 months ago

I’m not entirely sure, but I feel like "myVariable" is a valid name. I hope I’m remembering that correctly!

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Ligia

7 months ago

I remember we practiced a question about valid variable names, and I think they can include letters and underscores.

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Julieta

7 months ago

I think variable names can’t start with a number, right? So maybe something like "var1" wouldn’t work.

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Beckie

8 months ago

I feel pretty confident about this one. The valid variable names are probably "myVariable" and "x123". Anything with spaces or special characters wouldn't work.

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Tula

8 months ago

Okay, let me think this through. Variable names need to start with a letter or underscore, and can only contain letters, digits, and underscores. So I'd say "myVar" and "var_123" are probably the valid options here.

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Viola

8 months ago

Ugh, I hate these syntax questions. I always get tripped up on the specific rules for variable naming. I'll just have to guess and hope for the best.

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Madelyn

8 months ago

Hmm, I'm not totally sure about this. I know variable names can't have spaces, but I'm not sure about other rules. Maybe "my_variable" and "variable123" could work?

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Millie

8 months ago

I think I know the answer to this one. Variable names can't have spaces or special characters, so I'd say the valid options are "myVariable" and "x123".

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Hobert

2 months ago

Definitely! Spaces are a problem too.

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Lashandra

2 months ago

Yeah, special characters are a no-go.

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Emerson

2 months ago

I agree, "myVariable" and "x123" are good choices.

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