Mistakes that allow a program to run, but cause it to produce erroneous results are called

QUESTION 1

		logic errors.
		syntax errors.
		compiler errors.
		linker errors.
		none of the above.

2 points

QUESTION 2

A ________ variable is declared outside all functions.

		global
		static
		constant
		local
		counter

2 points

QUESTION 3

You may define a(n) ________ in the initialization expression of a for loop.

		operator
		variable
		constant
		new data type
		new keyword

2 points

QUESTION 4

High-level programming languages include

		C++ and Java.
		C++ and JavaScript.
		C++ and Visual Basic.
		all of the above.
		A and B, but not C.

2 points

QUESTION 5

The statements in the body of a do-while loop are executed

		until the test condition becomes true.
		at least once.
		exactly once.
		forever until the user hits the break key.
		only if the test condition is initially true.

2 points

QUESTION 6

In a for statement, the ________ expression is executed only once.

		initialization
		update
		repeat
		validate
		test

2 points

QUESTION 7

The code int x = 0; while (s[x] != 0) { x++;}

		computes the length of the C-string s into the variable x.
		sets the variable x to the ASCII code of the last character in the C-string s.
		sets the variable x to point to the last character in the C-string s.
		sets the value of the variable x to 0.
		None of the above

2 points

QUESTION 8

The ________ statement causes other program statements to execute only under certain conditions.

		logical
		cin
		if
		cout
		relational

2 points

QUESTION 9

At the heart of a computer is its central processing unit. The CPU's job is to

		produce some result.
		fetch instructions.
		carry out the operations commanded by the instructions.
		do all of the above.
		do none of the above.

2 points

QUESTION 10

To access an array element, use the array name and the element's

		data type.
		value.
		size declarator.
		subscript.
		name.

2 points

QUESTION 11

We can measure the complexity of an algorithm that solves a computational problem by determining the number of ________ for an input of size n.

		variables it uses
		operations it performs
		basic steps it requires
		times it loops
		output statements it has

2 points

QUESTION 12

IDE stands for

		initial development error.
		internal direct execution.
		integrated development environment.
		internal data engine.
		interactive data entry.

2 points

QUESTION 13

A software package that includes a text editor, compiler, debugger, and assorted utilities for creating, testing, and running software is called

		a software utility package (SUP).
		an operating system.
		a low-level programming language.
		a high-level programming language.
		none of the above.

2 points

QUESTION 14

An array of 10 integers named myArray can have its contents displayed with which of the following statements?

		cout << myArray[0-9];
		cout << myArray;
		cout << myArray[10];
		cout << myArray[];
		none of the above

2 points

QUESTION 15

If you leave out the size declarator in an array declaration

		the array size defaults to 100 elements.
		you must furnish an initialization list.
		the array cannot be created.
		the array will contain no elements.
		the value of each array element is set to a default value of 0.

2 points

QUESTION 16

A(n) ________ is a set of instructions that tells the computer how to solve a problem.

		linker
		variable
		operator
		program
		compiler

2 points

QUESTION 17

The statement cout << setw(4) << num4 << " ";

		outputs the value stored in num4 four times.
		outputs the value of num4 rounded to 4 decimal places.
		outputs the first 4 digits of the number stored in num4.
		outputs "setw(4)" before the value in the variable num4.
		does none of above.

2 points

QUESTION 18

Which of the following statements is not valid C++ code?

		float num1 = &ptr2;
		int ptr = &num1;
		int ptr = int *num1;
		All of the above are valid.
		All of the above are invalid.

2 points

QUESTION 19

To use the sqrt() function, or other mathematical library functions, you must #include the ________ header file in your program.

		algebra
		mathlib
		iostream
		iomanip
		cmath

2 points

QUESTION 20

The ________ statement executes one block of statements if a test condition is true, and another block if the condition is false.

		switch
		if
		trailing else
		if/else
		if/else if

2 points

QUESTION 21

The following 4 lines of C++ code, use strings. string firstName; // Define a string object char lastName[7]; // Define a C-string firstName = "Abraham"; // Assign a value to the string object lastName = "Lincoln"; // Assign a value to the C-string Which of the following statements is /are true?

		The string object is assigned a value correctly, but the C-string is not.
		The 2 string definitions are correct, but the 2 assignment statements are wrong.
		The C-string is assigned a value correctly, but the string object is not.
		The string object is defined incorrectly because no size is given for it.
		All 4 lines of code are correct.

2 points

QUESTION 22

Words with a special meaning that may be used only for their intended purpose are known as

		keywords.
		single purpose words..
		programmer-defined identifiers.
		syntax words.
		none of the above.

2 points

QUESTION 23

The ________ directive causes the contents of another file to be inserted into a program.

		#getfile
		#include
		#insert
		#library
		none of the above

2 points

QUESTION 24

What literal(s) appear in the following C++ statement? int number = 4 + 8;

		12
		4
		8
		number
		both B and C

2 points

QUESTION 25

The ________ object causes data to be input from the keyboard.

		dataIn
		standard input
		cin
		cout
		keyboard buffer

2 points

QUESTION 26

An array can store a group of values, but the values must be

		constants.
		declared at the time the array is created.
		all the same data type.
		numeric, not characters or strings.
		none of the above.

2 points

QUESTION 27

The expression 5 % 2 evaluates to

		1
		2
		2.5
		5.2
		10

2 points

QUESTION 28

The linear search is adequate for searching through ________ arrays, but not through ________ ones.

		char, string
		any regular, vector
		int, double
		ascending, descending
		small, large

2 points

QUESTION 29

The ________ statement causes a loop to terminate early.

		break
		stop
		continue
		terminate
		quit

2 points

QUESTION 30

You may use the type pointer to a structure as the type of a

		structure member.
		function return type.
		function parameter.
		All of the above
		None of the above

2 points

QUESTION 31

A static local variable is one

		whose value never changes.
		with the same name as a global variable.
		whose value is retained between function calls.
		whose scope is limited to the function it is defined in.
		that is reinitialized each time the function it is defined in is called.

2 points

QUESTION 32

To locate a value that is in an ordered array of 50 items, linear search must examine at most ________ values.

		1
		6
		25
		50
		51

2 points

QUESTION 33

A sorting algorithm can be used to arrange a set of ________ in ________ order.

		strings, ascending
		numeric values, descending
		strings, descending
		numeric values, ascending
		All of the above.

2 points

QUESTION 34

The ________ coordinates the computer's operations by fetching the next instruction and using control signals to regulate the other major computer components.

		control unit
		arithmetic and logic unit (ALU)
		traffic controller
		instruction manager
		operating system

2 points

QUESTION 35

A pointer may be initialized with

		the address of an existing object of the appropriate type.
		the value of a floating-point variable.
		the value of a floating-point constant.
		All of the above
		None of the above

2 points

QUESTION 36

What will the following statement do if x equals 17 and answer = 20? answer = x > 100 ? 0 : 1;

		Assign 0 to answer.
		Assign 1 to answer.
		Assign 17 to answer.
		Assign 0 to x.
		Assign 1 to x.

2 points

QUESTION 37

Assume that str1 and str2 are objects of the string class. The proper expression to use when comparing them for equality is

		str1 == str2.
		str1 = str2.
		str1.compare(str2).
		strcmp(str1, str2).
		None of the above

2 points

QUESTION 38

The default section of a switch statement performs a similar task as the ________ portion of an if/else if statement.

		body
		else if
		trailing else
		conditional test
		break

2 points

QUESTION 39

In C++ numeric global variables are ________ by default and numeric local variables are ________ by default.

		not initialized, initialized to zero
		initialized to zero, not initialized
		initialized to zero, initialized to zero
		not initialized, not initialized
		None of the above

2 points

QUESTION 40

An overloaded function is one

		that call other functions.
		that has too many parameters.
		that attempts to do too much in a single function.
		that has the same name as another function.
		that does different things depending on who calls it.

2 points

QUESTION 41

Which statements convert the string "10" to the integer value 10?

		istringstream istr("10"); int x; istr >> x;
		int x = stoi("10");
		int x = str("10"):
		ostringstream ostr("10"); int x; ostr >> x;
		None of the above

2 points

QUESTION 42

What value will be assigned to the variable number by the following statement? int number = 7.8;

		7.8
		7
		8
		None of the above.
		It's unpredictable. That's the problem.

2 points

QUESTION 43

An operation that copies a value into a variable is called a(n) ________ operation.

		cout
		declaration
		assignment
		copy
		equals

2 points

QUESTION 44

A ________ is a program module whose purpose is to test other modules by calling them.

		pseudocode routine
		stub
		driver
		dummy program
		main function

2 points

QUESTION 45

Operator associativity is either left to right or

		right to left.
		inside to outside.
		top to bottom.
		front to back.
		nothing else; it is always left to right.

2 points

QUESTION 46

If a variable occupies more than one byte of memory, its address is

		the average of the addresses used to store the variable.
		the address of the last byte of storage allocated to it.
		general delivery.
		the address of the first byte of storage allocated to it.
		None of the above

2 points

QUESTION 47

Relational operators allow you to ________ numbers.

		multiply
		compare
		verify
		add
		average

2 points

QUESTION 48

Which of the following expressions will evaluate to 2.5?

		static_cast(5 / 2)
		static_cast(5) / 2
		5 / static_cast(2)
		All three of the above
		Both B and C, but not A

2 points

QUESTION 49

Which of the following is/are valid C++ identifiers?

		department_9
		aVeryLongVariableName
		last-name
		All of the above are valid identifiers.
		Both A and B are valid identifiers, but C is not.

2 points

QUESTION 50

To use files in a C++ program you must include the ________ header file.

		file
		iostream
		fstream
		Both A and B.
		Both B and C.

2 points

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