Question

1.

What does the below C++ statement do?

vector<double> myVec(20);

Group of answer choices

A.It creates a vector object that can only store values of 10 or less.

B.It creates a vector object with a starting size of 10.

C.It creates a vector object and initializes the first element with the value 20.

D.It creates a vector object with a starting size of 20.

2.

A recursive function contains a call to itself, but is limited to 10 recursive calls unless otherwise specified by the programmer.

Group of answer choices

A.True

B.False

3.

An array of string objects that will hold four city names would be declared with which of the following statements?

Group of answer choices

A.string cityNames 5;

B.string cityNames size 4;

C.string cityNames[4];

D.string cityNames[5];

E.string cityNames(4);

4.

Which statements are a way to write an infinite loop? (Select all that apply.)

Group of answer choices

A.for (;;) { }

B.while (1) { }

C.while (&&) { }

D. while (false) { }

5.

Consider the below C++ function. If we wanted it to return the first negative value in the array, what would be a valid return statement at the location marked X?

int findFirstNegative(int array[], int length) {
    for (int i = 0; i < length; i++) {
        if (array[i] < 0)
            // X
    }
    return (-1);
}

Group of answer choices

A.return array;

B.return array[i + 1];

C.return void array;

D.return array[i];

E. return array[length];

Answer 1

1)  D.It creates a vector object with a starting size of 20.
2)  B.False
3)  C.string cityNames[4];
4)  for (;;) { }
    while (1) { }
5)  D.return array[i];