C++ Ch 7 Arrays Quiz
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Quiz over Arrays in C++
- 1.Name 3 types of sorts used with arrays.
- 2.The locations of the various indexed variables in an array can be spread out all over the memory.
- A.
True
- B.
False
- 3.If a function is expecting a pass by reference parameter, you can pass an index variable from an array of the same base type to that function.
- A.
True
- B.
False
- 4.When you have a function that expects an array, it should also expect the size of the array or the number of indexed variables with valid data.
- A.
True
- B.
False
- 5.The following function declaration guarantees the values in the array argument are not changed. void function1(int array[], int numElements);
- A.
True
- B.
False
- 6.The following function will work with any size integer array. void function1(int array[], int numElements);
- A.
True
- B.
False
- 7.What are the valid indexes for the array shown below? int myArray[25];
- A.
0-25
- B.
0-24
- C.
1-25
- D.
1-24
- 8.Why should you use a named constant for the size of an array?
- A.
Readability of code
- B.
Makes changes to the program easier
- C.
Helps reduce logic errors
- D.
All answers are correct
- 9.What is wrong with the following code fragment? const int SIZE =5; float scores[SIZE]; for(int i=0; i<=SIZE;i++) { cout << "Enter a score\n"; cin >> scores[i]; }
- A.
Array indexes start at 1 not 0
- B.
Arrays must be integers
- C.
Array indexes must be less than the size of the array
- D.
Should be cin >> scores[0];
- 10.Which of the following declare an array of 5 characters, and initializes them to some known values?
- A.
Char array[5]={'a','b','c','d','e'};
- B.
Char array[4]={'a','b','c','d','e'};
- C.
Char array[5]={' '};
- D.
Char array[]={'a','b','d','e'};
- E.
Char array[5]={'a','b','c','d','e'}; and char array[5]={' '};
- 11.Arrays are always passed to a function using
- A.
Pass by value
- B.
Pass by reference
- C.
Pass by array
- D.
You cannot pass arrays to a function
- 12.Give the following declarations, which of the following is a legal call to this function? int myFunction(int myValue); int myArray[1000];
- A.
Cout
- B.
Cout
- C.
MyArray[1] = myFunction(myArray[0]);
- D.
Cout
- 13.Which of the following function declarations correctly guarantee that the function will not change any values in the array argument?
- A.
Void f1(int array[], int size) const;
- B.
Void f1(int array[], int size);
- C.
Void f1(int &array, int size);
- D.
Void f1(const int array[], int size);
- 14.If we want a search function to search an array for some value and return either the index where the value was found, or -1 if not found, which of the following prototypes would be appropriate?
- A.
Void search(const int array, int target, int numElements);
- B.
Void search(const int array, int target);
- C.
Int search(const int array[], int numElements);
- D.
Int search(const int array[], int target, int numElements
- 15.Given the following function definition, will repeated calls to the search function for the same target find all occurrences of that target in the array? int search(const int array[], int target, int numElements) { int index=0; bool found=false; while((!found) && (index < numElements)) { if(array[index] == target) found=true; else index++; } if(found==true) return index; else return -1; }
- A.
Yes
- B.
No
- C.
Impossible to tell without looking at the values of the array
- D.
It depends on the value of target.
- 16.Which of the following function declarations will accept the following two- dimension array? int pages[10][30];
- A.
Void f1(int pages[][], int size);
- B.
Void f1(int pages[][30], int size);
- C.
Void f1(int pages[10][], int size);
- D.
Void f1(int& pages, int size);
- 17.If you need a function that will handle multi-dimensional arrays, you must specify the following sizes inside the square brackets.
- A.
All the sizes
- B.
All sizes except the last dimension
- C.
All sizes except the first dimension
- D.
None of the sizes
- 18.What is the output of the following code fragment? int array[4][4], index1, index2; for(index1=0;index1<4;index1++) for(index2=0;index2<4;index2++) array[index1][index2]=index1 + index2; for(index1=0;index1<4;index1++) { for(index2=0;index2<4;index2++) cout << array[index1][index2] << " "; cout << endl; }
- A.
0 1 2 3 1 2 3 4 2 3 4 5 3 4 5 6
- B.
0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3
- C.
0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3
- D.
0 0 0 0 0 1 2 3 0 2 4 6 0 3 6 9
- 19.Which of the following function declarations can be passed the following array? char myArray[6][8];
- A.
Void f1(char a[][], int sizeOfFirst);
- B.
Void f1(char a[][8], int sizeOfFirst);
- C.
Void f1(char a[6][8], int sizeOfFirst);
- D.
Void f1(char a[][8], int sizeOfFirst); and void f1(char a[6][8], int sizeOfFirst);
- 20.A two dimension array can also be thought of as
- A.
A table
- B.
An array of arrays
- C.
A file
- D.
A table and an array of arrays
- 21.Which of the following will correctly assign all the values in one array to the other array? (Assume both arrays are of the same type and have SIZE elements)
- A.
Array1=array2;
- B.
Array1[]=array2;
- C.
Array1[]=array2; c. for(i=0;i
- D.
For(i=0;i
- 22.Memory for the formal parameters and variables declared in the body of a function is a / an
- A.
Local variable
- B.
Local identifier
- C.
Automatic variable
- 23.What refers to where in the program an identifier is accessible (visible)?
- A.
Scope of an identifier
- B.
Reference parameter
- C.
Scope resolution operator
- D.
Static Variable
- 24.What type of variable do you have when the memory for the variable remains allocated as long as the program executes?
- A.
Static
- B.
Automatic
- C.
Instance
- D.
Local
- 25.What is the correct way to create an array named golfScores that witll hold 5 game scores.
- A.
Int golfScores[5];
- B.
Float golfScores[5];
- C.
Int golfScores;
- D.
String golfScores[]
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