Python Institute Exam PCAP-31-03 Topic 6 Question 68 Discussion

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

Question #: 68
Topic #: 6

[All PCAP-31-03 Questions]

Which of the following statements are true? (Select two answers)

Aopen () is a function which returns an int that represents a physical file handle

Bthe second open () argument is optional

Cinstd, outstd, errstd are the names of pre-opened streams

Dif invoking open () fails, the value None is returned

Show Suggested Answer

Suggested Answer: A, B

by Marge at Jun 28, 2024, 07:52 PM

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Bettina

5 months ago

A, C, and D all sound plausible to me. I'm going to go with those three just to be safe.

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Billye

5 months ago

Haha, open() returning None? That's the equivalent of your car's owner's manual being blank. Not very useful!

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Glory

5 months ago

D definitely can't be right. What kind of programmer would return None for a failed file open? That's just silly.

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Golda

3 months ago

Definitely, it would be more useful to return an error code or something.

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Delmy

3 months ago

Yeah, it seems like a bad design choice.

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Paris

3 months ago

I agree, returning None for a failed file open doesn't make sense.

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Veronika

3 months ago

Yeah, those sound more logical. Good choices.

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Alecia

3 months ago

I think the correct statements are B) the second open () argument is optional and C) instd, outstd, errstd are the names of pre-opened streams.

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Noel

4 months ago

I agree, returning None for a failed file open doesn't make sense.

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Hyman

5 months ago

I'm pretty sure B is also true. The second argument to open() is the file mode, which can be specified optionally.

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Carman

4 months ago

Yes, you're right. B is also true. The second argument is optional for open().

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Carman

4 months ago

I think A and B are correct. The second argument is indeed optional.

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Reid

5 months ago

You're right, I misunderstood. A and C make more sense now.

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Dorothy

5 months ago

But the second argument in open() is not optional, it is mandatory.

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Reid

5 months ago

I think B and D are the correct answers.

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Dorothy

5 months ago

A and C are true.

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Wilson

6 months ago

A and C seem correct to me. The open() function returns a file descriptor, not None.

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Benton

5 months ago

The open() function returns a file descriptor, not None.

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Katie

5 months ago

A and C seem correct to me.

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