C++ Institute Exam CPA-21-02 Topic 8 Question 40 Discussion

Actual exam question for C++ Institute's CPA-21-02 exam

Question #: 40
Topic #: 8

[All CPA-21-02 Questions]

What happens when you attempt to compile and run the following code?

#include

using namespace std;

int main()

{

int x=2, *y;

y = &x;

cout << *y + x;

return 0;

}

AIt prints: 1

BIt prints: 2

CIt prints: 4

DIt prints: 0

Show Suggested Answer

Suggested Answer: C

by Christene at Jun 12, 2025, 12:15 PM

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Marva

1 months ago

B) It prints: 2. Duh, anyone who's been paying attention in their C++ class should know this. It's like pointer 101, really. Although, I have to say, the person who wrote this question must have a twisted sense of humor. 'Attempt to compile and run' - what is this, a trick question?

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Deeanna

1 months ago

I'm not sure, but I think it prints: 4 too. The addition of *y and x should result in 4.

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Kassandra

1 months ago

Hmm, I'm going with D) It prints: 0. The code is clearly trying to confuse us with pointers and stuff, but I bet it's just a trick question and the answer is 0. You know, the classic 'return 0' at the end.

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Glenna

20 days ago

I agree with D) It prints: 0. The code is adding the value pointed to by y and x, which are the same.

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Tawna

1 months ago

I'm going with B) It prints: 2. The code is dereferencing the pointer y and adding it to x.

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Marjory

1 months ago

I think it's actually C) It prints: 4. The code is adding the value pointed to by y and x.

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Fidelia

2 months ago

I believe it prints: 4 as well, the dereference operator * gets the value pointed to by y.

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Elliott

2 months ago

I think the answer is C) It prints: 4. When you dereference the pointer 'y', it gives you the value of 'x', which is 2. Then, you add 'x' to that, which gives you 4. Simple math, folks!

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Mammie

2 months ago

The correct answer is B) It prints: 2. The code creates a pointer variable 'y' and assigns the address of 'x' to it. Then, it prints the sum of the value of 'x' and the value pointed to by 'y', which is the value of 'x'.

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Alecia

1 months ago

That makes sense, the value of x is 2 and the value pointed to by y is also 2.

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Alecia

1 months ago

It prints: 2

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Paris

2 months ago

I think it prints: 4 because it adds the value pointed to by y and x.

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