C++ Quiz 2

In a C++ program, two slash marks ( // ) indicate: Select one: a. The end of a statement b. The beginning of a comment c. The end of the program d. The beginning of a block of code e. None of these

A statement that starts with a # symbol is called a: Select one: a. Comment b. Function c. Preprocessor directive d. Key word e. None of these

For every opening brace in a C++ program, there must be a: Select one: a. String literal b. Function c. Variable d. Closing brace e. None of these

The ________ is/are used to display information on the computer's screen. Select one: a. Opening and closing braces b. Opening and closing quotation marks c. cout object d. Backslash e. None of these

The ________ causes the contents of another file to be inserted into a program. Select one: a. Backslash b. Pound sign c. Semicolon d. #include directive e. None of these

________ represent storage locations in the computer's memory. Select one: a. Literals b. Variables c. Comments d. Integers e. None of these

These are data items whose values do not change while the program is running. Select one: a. Literals b. Variables c. Comments d. Integers e. None of these

You must have a ________ for every variable you intend to use in a program. Select one: a. purpose b. definition c. comment d. constant e. None of these

Of the following, which is a valid C++ identifier? Select one: a. June1997 b. _employee_number c. ___department d. myExtraLongVariableName e. All of these are valid identifiers.

The numeric data types in C++ can be broken into two general categories: Select one: a. numbers and characters b. singles and doubles c. integer and floating point d. real and unreal e. None of these

Besides decimal, two other number systems you might encounter in C++ programs are: Select one: a. Octal and Fractal b. Hexadecimal and Octal c. Unary and Quaternary d. Base 7 and Base 9 e. None of these

A character literal is enclosed in ________ quotation marks, whereas a string literal is enclosed in ________ quotation marks. Select one: a. double, single b. triple, double c. open, closed d. single, double e. None of these

In memory, C++ automatically places a ________ at the end of string literals. Select one: a. Semicolon b. Quotation marks c. Null terminator d. Newline escape sequence e. None of these

Which escape sequence causes the cursor to move to the beginning of the current line? Select one: a. t b. a c. n d. b e. r

What is the modulus operator? Select one: a. % b. + c. || d. & e. *

Which data type typically requires only one byte of storage? Select one: a. double b. int c. char d. short e. float

What is the output of the following statement? cout << 4 * ( 15 / (1+3 )) << endl; Select one: a. 15 b. 12 c. 63 d. 72 e. None of these

In programming terms, a group of characters inside a set of quotation marks is called aNo: Select one: a. String literal b. Variable c. Operation d. Statement e. None of these

This is used to mark the end of a complete C++ programming statement. Select one: a. Pound Sign b. Semicolon c. Data type d. Void e. None of these

Which character signifies the beginning of an escape sequence? Select one: a. b. # c. { d. / e. //

________ must be included in any program that uses the cout object. Select one: a. Opening and closing braces b. The header file iostream c. Comments d. Escape sequences e. None of these

If you use a C++ key word as an identifier, your program will: Select one: a. Execute with unpredictable results b. not compile c. understand the difference and run without problems d. Compile, link, but not execute e. None of these

What is the value of cookies after the execution of the following statements? int number= 38, children=4, cookies; cookies = number % children; Select one: a. 2 b. 0 c. 9 d. .5 e. None of these

This function in C++ allows you to identify how many bytes of storage on your computer system an integer data value requires. Select one: a. int b. sizeof c. bytes d. f(x) e. len

Character constants in C++ are always enclosed in ________. Select one: a. {braces} b. [brackets] c. "double quotation marks" d. 'single quotation marks' e. (parentheses)

These are used to declare variables that can hold real numbers. Select one: a. Integer data types b. Real data types c. Floating point data types d. Long data types e. None of these

The float data type is considered ________ precision, and the double data type is considered ________ precision. Select one: a. single, double b. float, double c. integer, double d. short, long e. None of these

A variable whose value can be either true or false is of this data type. Select one: a. binary b. bool c. T/F d. float e. None of these

Which of the following correctly consolidates the following declaration statements into one statement? Select one: a. int x, y, z= 7, 16, 28 b. None of these will work. c. int x=7, y=16, z=28; d. int x=7; y=7; z=28; e. int x= 7 y=4 z=4

A variable's ________ is the part of the program that has access to the variable. Select one: a. data type b. value Incorrect c. scope d. reach e. None of these

Every complete C++ program must have a ________. Select one: a. symbolic constant b. cout statement c. comment d. function named main e. preprocessor directive

This control sequence is used to skip over to the next horizontal tab stop. Select one: a. n b. t c. a d. ' e. h

Which one of the following would be an illegal variable name? Select one: a. _employee_num b. dayOfWeek c. 3dGraph d. June1997 e. itemsorderedforthemonth

Which of the following defines a double-precision floating point variable named payCheck? Select one: a. payCheck double; b. Double payCheck; c. double payCheck; d. float payCheck;

What will the following code display? cout << "Monday"; cout << "Tuesday"; cout << "Wednesday"; Select one: a. MondayTuesdayWednesday b. Monday Tuesday Wednesday c. "Monday" "Tuesday" "Wednesday" d. Monday Tuesday Wednesday

What will the following code display? int number= 7; cout<< "The number is "<< "number" << endl; Select one: a. The number is number b. The number is 0 c. The number is7 d. The number is 7

Assuming you are using a system with 1-byte characters, how many bytes of memory will the following string literal occupy? "William" Select one: a. 8 b. 14 c. 7 d. 1

The first step in using the string class is to #include the ________ header file. Select one: a. iostream b. cctype c. cmath d. string e. None of these

In C++ 11, if you want an integer literal to be treated as a long long int, you can append ________ at the end of the number. Select one: a. L b. c. I d. LL e. None of these

In C++ 11, the ________ tells the compiler to determine the variable's data type from the initialization value. Select one: a. auto key word b. #include preprocessor directive c. variable's name d. dynamic_cast key word e. None of these