Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25

- Free Preparation Discussions

C++ Institute CPA-21-02 Exam - Topic 3 Question 43 Discussion

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

Question #: 43
Topic #: 3

[All CPA-21-02 Questions]

If there is one, point out an error in the program

#include

using namespace std;

int main()

{

int c = 'a';

switch(i)

{

case '2':

cout<<"OK";

case '1':

cout<<"Error";

default:

break;

}

return 0;

}

ANo Error

BUse of undeclared identifier 'i'

CIllegal use of 'continue'

DIllegal use of 'break'

Show Suggested Answer

Suggested Answer: B

by Thersa at Aug 04, 2025, 11:31 AM

Limited Time Offer

25%

Off

Get Premium CPA-21-02 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Sharita

8 months ago

Wait, are we sure there's no other error?

upvoted 0 times

...

Troy

8 months ago

Totally agree, that's a major error!

upvoted 0 times

...

Domitila

9 months ago

The variable 'i' is undeclared, that's a big issue.

upvoted 0 times

...

Shawn

9 months ago

Isn't 'c' supposed to be used in the switch?

upvoted 0 times

...

Darell

9 months ago

I think the switch statement is fine, just fix 'i'.

upvoted 0 times

...

Charlesetta

9 months ago

I feel like I’ve seen a similar question before, and it was about undeclared identifiers, so maybe that's the error here too.

upvoted 0 times

...

Malcom

10 months ago

I’m a bit confused; I thought 'continue' was only used in loops, so I don’t think that’s the problem here.

upvoted 0 times

...

Heidy

10 months ago

I remember something about switch statements, but I’m not sure if there’s an error with the case labels.

upvoted 0 times

...

Mammie

10 months ago

I think there’s an issue with the variable 'i' since it’s not declared anywhere in the program.

upvoted 0 times

...

Slyvia

10 months ago

I'm feeling pretty confident about this one. The error is clearly the use of the undeclared variable 'i' in the switch statement. I'll make a note to always double-check variable declarations when analyzing code.

upvoted 0 times

...

Miriam

10 months ago

Ah, I see the problem now. The variable 'i' is not defined, so the switch statement won't work as expected. I'll make sure to check for any undeclared variables when reviewing code on the exam.

upvoted 0 times

...

Alba

11 months ago

Okay, I think I've got it. The issue is that the variable 'i' is used in the switch statement, but it's never declared or initialized. That's gotta be the error they're looking for.

upvoted 0 times

...

Carma

11 months ago

Uh oh, I'm a bit confused here. The question mentions an error, but I'm not sure I see one right away. I'll have to double-check the syntax and variable declarations.

upvoted 0 times

...

Justine

11 months ago

Hmm, this looks tricky. I'll need to carefully read through the code and think about the use of the switch statement and the variable 'i'.

upvoted 0 times

...

Whitley

11 months ago

I think the error is in the line 'switch(i)' because 'i' is not declared anywhere in the program.

upvoted 0 times

...

Tawna

1 year ago

B) Use of undeclared identifier 'i'

upvoted 0 times

...

Galen

1 year ago

I'd say it's D. The 'break' statement inside the 'default' case is not necessary and could be considered an illegal use of it.

upvoted 0 times

Alfred

11 months ago

B) Use of undeclared identifier 'i'

upvoted 0 times

...

Magda

12 months ago

A) No Error

upvoted 0 times

...

...

Maia

1 year ago

Definitely B. The variable 'i' is not declared anywhere in the code, so it's a clear case of using an undeclared identifier.

upvoted 0 times

Jamie

11 months ago

A) No Error

upvoted 0 times

...

Tom

11 months ago

Yeah, definitely B. 'i' is nowhere to be found in the code.

upvoted 0 times

...

Evelynn

1 year ago

B) Use of undeclared identifier 'i'

upvoted 0 times

...

...