C++ Institute CPA-21-02 Exam - Topic 1 Question 1 Discussion

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

Question #: 1
Topic #: 1

Which line of code inserted instead of the comment will make the following code run properly without causing memory leaks?

A~Base() ( delete this; }

Bno additional code is needed

C~Base() { delete ptr; delete ptr; }

D~Base() { delete ptr; }

Show Suggested Answer

Suggested Answer: D

by Brittni at Dec 09, 2023, 10:25 PM

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Moon

5 months ago

I’m not sure about C, seems like it could cause issues.

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Rachael

6 months ago

Totally agree with D, it’s the cleanest way to avoid leaks.

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An

6 months ago

Wait, can you really delete a pointer twice? That's risky!

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Dottie

6 months ago

I think B is enough, no extra code needed.

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Stevie

6 months ago

Option D is the correct choice!

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Kiley

6 months ago

I’m leaning towards option A, but I’m not confident. The double delete in option C seems risky too.

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Benedict

7 months ago

I practiced a similar question, and I feel like option B might be misleading. We definitely need some code to manage memory.

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Karrie

7 months ago

I'm not entirely sure, but I remember something about destructors needing to clean up resources. Maybe option C is correct?

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Kiera

7 months ago

I think option D is the right choice since it only deletes the pointer once, which should prevent memory leaks.

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Nguyet

7 months ago

I think option D is the correct answer, but I want to make sure I'm not missing any edge cases or potential issues.

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Lennie

7 months ago

I'm a bit confused by the different options. I'll need to double-check my understanding of memory management in C++ to make the right choice here.

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Kattie

7 months ago

Okay, let me think this through step-by-step. The key is to identify the correct way to deallocate the memory for the 'ptr' object.

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Truman

7 months ago

Hmm, this looks tricky. I'll need to carefully read through the code and options to make sure I understand what's causing the memory leak.

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Emily

7 months ago

Hmm, this seems like a tricky one. I'll need to think through the key concepts around tasks and executors to figure this out.

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Amina

7 months ago

This is a tricky one, but I think turning off the computer and rebooting from a clean system disk is the safest option.

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Temeka

7 months ago

Okay, let's see. I think the main things are not deleting the existing installation and making sure Alfresco starts up properly with the new version.

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Keneth

7 months ago

I think the mnemonic for the Enter key might be "{enter}", but I'm not completely sure.

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