1.This question may have 0 to multiple answers. Choose all that apply. Consider the following for loop:

for (int x = 1; x < 5; increment) { cout << x + 1 << endl; } 

If the last value printed is 5, which of the following might have been used for increment?

A

x++

B

++x

C

x += 1

D	None of the choices.

2.If a dowhile structure is used:

A	Counter-controlled iteration is not possible.

B	An infinite loop cannot take place.

C	An off-by-one error cannot occur.

D	The body of the loop will execute at least once.

3.In C++, the condition (4 > y > 1):

A	Does not evaluate correctly and should be replaced by (4 > y && y > 1).

B	Evaluates correctly and could be replaced by (4 > y && y > 1).

C	Does not evaluate correctly and should NOT be replaced by (4 > y && y > 1).

D	Evaluates correctly and could NOT be replaced by (4 > y && y > 1).

4.Which of the following initializes a vector with a list initializer:

A	vector integers{1, 2, 3, 4, 5, 6};

B	vector integers(1, 2, 3, 4, 5, 6);

C	vector integers{1, 2, 3, 4, 5, 6};

D	None of the choices.

5.This question may have 0 to multiple answers. Choose all that apply. Assuming var is an int:

A	var++ adds 1 to var, returning the new var before the semicolon.

B	++var adds 1 to var, returning the new var before the semicolon.

C	var++ adds 1 to var, returning the old var before the semicolon.

D	++var adds 1 to var, returning the old var before the semicolon.

E	None of the choices.

6.This question may have 0 to multiple answers. Choose all that apply. Which of the following is a valid way to retrieve the length of a C++ string, str?

A	str.length();

B	strlen(str);

C	strlen(str.c_str())+1;

D	None of the choices.

E	str.size();

7.An array is a sequence of objects allocated in contiguous memory. That is, all elements of an array can be of different types and there are no gaps between them in the sequence.

A

True

B

False

8.The following statements compile in C++:

int arr[10]; arr[-1] = 1; arr[10] = 2;

A

True

B

False

9.The support for C-style strings are in

A

True

B

False

10.What is the length of the resulting C-style string, str, after strcpy()?

char str[100]; strcpy(str, "C++");

A

4

B

3

C

100

D

101

11.C++ style string is terminated by '\0'.

A

True

B

False

12.Assuming str is an non-empty C-style string, is the following True or False?

sizeof(str) == strlen(str);

A

True

B

False

13. If the variable x has the original value of 3.3, what is the output value after the following?

cout << static_cast(x);

A

3

B

2

C

3.3

D

4

E

undefined

F

3.0

14. What is the value returned by the following function?

int function() { int value = 30; return value + 5; value += 10; }

............

15.Assert terminates the program with a message when its boolean argument turns out to be TRUE.

A

True

B

False

16. Multiple arguments to a function are separated by a

A	commas ','

B	period '.'

C	semicolons ';'

D

comments

17 The functions pow(), sqrt(), and fabs() are found in which include file?

A

cstdlib

B

stdlib

C

iostream

D

cmath

E

std

18.This question may have 0 to multiple answers. Choose all that apply. How do you concatenate two C++ strings, str1 and str2?

A	concate(str1, str2);

B	strconcate(str1, str2);

C	str1 = str2;

D	str1.add(str2);

E	str1 += str2;