Python Institute Exam PCAP-31-03 Topic 4 Question 70 Discussion

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

Question #: 70
Topic #: 4

[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 Jovita at Jul 17, 2024, 11:19 PM

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Eugene

4 months ago

I'm going with A and C. D is just silly - as if open() would ever return None. That's what try-except blocks are for!

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Dulce

4 months ago

D is definitely wrong. If open() fails, it raises an exception, not returns None. A and C are the way to go.

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Whitley

3 months ago

C) instd, outstd, errstd are the names of pre-opened streams

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Whitley

4 months ago

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

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Chara

4 months ago

Haha, I bet the answer is B and C. Who uses open() without the second argument these days? And of course instd, outstd, and errstd are the real MVPs.

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Sherman

3 months ago

instd, outstd, and errstd are definitely important streams.

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Reena

4 months ago

Yeah, open() without the second argument seems outdated.

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Jerry

4 months ago

I think you're right, B and C are the correct answers.

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Mariko

4 months ago

I agree with A and C. But I'm not sure about the second argument to open() being optional. Isn't it required?

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Eden

3 months ago

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

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Paola

3 months ago

The second argument to open() is optional

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Justine

4 months ago

C) instd, outstd, errstd are the names of pre-opened streams

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Christene

4 months ago

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

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Chandra

5 months ago

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

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Ira

4 months ago

That's true. If open() fails, it returns None.

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Meghan

4 months ago

Yes, you're right. The second argument in open() is optional.

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Cherry

4 months ago

I think A and C are correct. The open() function does return a file handle.

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Ernestine

5 months ago

I agree with Miss, A) and C) seem to be the correct statements.

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Darrin

5 months ago

I think B) and D) are the correct answers.

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Miss

5 months ago

A) and C) are true.

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