COS1512 ASSIGNMENT 4 QUIZ 2024. CLOSES 24/09/2024

COS1512 ASSESSMENT 04 SEMESTER 2 2024



Closes: TUESDAY 24 SEPETEMBER 2024




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2. 2024
3. COS1512-24-Y
4. Welcome Message
5. Assessment 4



Quiz

Assessment 4
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Started on Thursday, 22 August 2024, 7:19 PM
State Finished
Completed on Thursday, 22 August 2024, 7:38 PM
Time taken 19 mins 23 secs
Grade Not yet graded
Question 1
Correct
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This question is based on question 1 in the written Assignment 4.
The program in question 1 of the written assignment, contains an incomplete recursive
function raised_to_power(). This function returns the value of the first parameter number of
type float raised to the value of the second parameter power of type int for all values
of power greater than or equal to 0.
The correct function header for the function raised_to_power() is
Select one:

float raised_to_power(float number, int power)


int raised_to_power(float number, int power)

,float raised_to_power(int number, float power)


float raised_to_power(float number, float power)
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Your answer is correct.
The correct answer is: float raised_to_power(float number, int power)

Question 2
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This question is based on question 1(b) in the written Assignment 4.
The program in question 1 of the written assignment, contains an incomplete recursive
function raised_to_power(). This function returns the value of the first
parameter number of type float raised to the value of the second parameter power of
type int for all values of power greater than or equal to 0.
Based on the fact that any value raised to the power of 0 is 1, the base case for this function is
Select one:

else if (power == 0)
return (1.0);


else if (power == 1)
return (1.0);


else if (power > 0)
return (1.0);


else if (power == 0)
return (number * raised_to_power(number, power - 1));
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Your answer is correct.
The correct answer is: else if (power == 0)
return (1.0);

Question 3
Incorrect
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This question is based on question 2(a) in the written Assignment 4. Question 2 included a code
fragment that you had to answer questions on. This is an extract from the code fragment:
6: class A
7: {
8: private:
9: int x;
10: protected:
11: int getX();
12: public:
13: void setX();
14: };
15:
16: int A::getX()
17: {
18: return x;
19: }
20:
21: void A::setX()
22: {
23: x=10;
24: }
In this code fragment, is line 18 a valid access?
Select one:
True
False
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The correct answer is 'True'.

Question 4
Incorrect
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Question text