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Exam PCAP-31-03 Topic 6 Question 68 Discussion
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)
A
open () is a function which returns an int that represents a physical file handle
B
the second open () argument is optional
C
instd, outstd, errstd are the names of pre-opened streams
D
if invoking open () fails, the value None is returned
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Suggested Answer:
A, B
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Jun 28, 2024, 07:52 PM
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Bettina
1 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
1 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
1 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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Noel
27 days ago
User1: I agree, returning None for a failed file open doesn't make sense.
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Hyman
1 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
22 days ago
Yes, you're right. B is also true. The second argument is optional for open().
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Carman
24 days ago
I think A and B are correct. The second argument is indeed optional.
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Reid
1 months ago
You're right, I misunderstood. A and C make more sense now.
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Dorothy
2 months ago
But the second argument in open() is not optional, it is mandatory.
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Reid
2 months ago
I think B and D are the correct answers.
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Dorothy
2 months ago
A and C are true.
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Wilson
2 months ago
A and C seem correct to me. The open() function returns a file descriptor, not None.
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Benton
1 months ago
The open() function returns a file descriptor, not None.
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Katie
2 months ago
A and C seem correct to me.
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Bettina
1 months agoBillye
1 months agoGlory
1 months agoNoel
27 days agoHyman
1 months agoCarman
22 days agoCarman
24 days agoReid
1 months agoDorothy
2 months agoReid
2 months agoDorothy
2 months agoWilson
2 months agoBenton
1 months agoKatie
2 months ago