Grading Summary

These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the “Details” section below.

Date Taken: 11 / 1/2015

Time Spent: 22 min , 14 secs

Points Received: 32 / 35 (91.4% )

Question Type: # Of Questions: # Correct:

Multiple Choice 10 9

Essay 1 N/A

Grade Details - All Questions

Question 1. Question :

( TCO 2) What is used to add special characters to string literals?

Student Answer:	 Return codes

CORRECT	 Escape sequence characters

 Special characters cannot be added to string literals.

 Scope resolution codes

Instructor Explanation: Review the Escape Characters section of the Week 1 Lecture.

Points Received:	3  of  3  	Comments:

Question 2. Question :

( TCO 2) What symbol terminates a statement?

Student Answer:	 //

CORRECT	 ;

 \\\\

 \>>

Instructor Explanation: Chapter 1, p. 11: The semicolon is the statement terminator.

Points Received:	3  of  3  	Comments:

Question 3. Question :

( TCO 2) The body of the main function starts with a _____.

Student Answer:	 .\[

CORRECT	 .{

 }

 ]

Instructor Explanation: Chapter 1, p. 11: It starts with a left brace {.

Points Received:	3  of  3

Comments:

Question 4. Question :

( TCO2) C++ paragraph comments are represented by which characters?

Student Answer:	 ::

CORRECT	 /\* \*/

 \>>

 //

Instructor Explanation: Chapter 1, p. 11

Points Received:	3  of  3  	Comments:

Question 5. Question :

( TCO 2) A Main Function is enclosed inside _____.

Student Answer:	 box brackets  	CORRECT	 curly braces

 parentheses

 quotes

Instructor Explanation: Chapter 1, p. 11

Points Received:	3  of  3  	Comments:

Question 6. Question :

( TCO 1) Which of the following statement about IDE is true?

Student Answer:	 IDE only allows programmers to edit their code.

CORRECT	 IDE provides editing, compiling, and debugging in one software package.

 Visual Studio.Net is not an IDE.

 IDE stands for integrated development engine.

Instructor Explanation: Chapter 1, p. 13

Points Received:	3  of  3

Comments:

Question 7. Question :

( TCO 2) Which of the following statements will output “Hello World”?

Student Answer:	CORRECT	 cout

 cin

 Print Queue

 Print Line

Instructor Explanation: Chapter 1: Multiple code examples sending statements to the console with cout

Points Received:	3  of  3  	Comments:

Question 8. Question :

( TCO 2) The ASCII of “a” is 97. What is the ASCII for “X”?

Student Answer:	 86

 87

 98

CORRECT	 88

Instructor Explanation: Chapter 2, p. 51 directs you to appendix B and the ASCII Table

Points Received:	3  of  3

Comments:

Question 9. Question :

( TCO 3) What is the value of x after the following statement?

float x; x = 3.0 / 4.0 + 3 + 2 / 5

Student Answer:	 1.75

CORRECT	 3.75

 5.75

INCORRECT	 4.15

Instructor Explanation: Chapter 2, p. 43 on data type: Float; see p. 46 for Arithmetic Expressions

Points Received:	0  of  3  	Comments:

Question 10. Question :

( TCO 2) What are two requirements for declaring a variable?

Student Answer:	CORRECT	 Data type and variable name

 Data type, variable name, and initial value

 Data type and initial value

 Variable name and initial value

Instructor Explanation: Chapter 2, pp. 38 & 39: see declaring variables

Points Received:	3  of  3  	Comments:

Question 11. Question :

(TCO 3) Explain the rules of operator precedence and how an expression using numeric values and operators would be evaluated.

Student Answer:	 	The rules of operator precedence is that in an 

expression that evaluates to a numeric value parenthesis are given a higher precedence followed by exponents,multiplication,division, addition then subtraction.Additionally, an expression is evaluated from left to right.An example of such an expression would be (4+5) / 3 .Here the numbers in parenthesis is handled first by adding them after which the result is divided by

3 .Here the expression would result in the value 3.

Instructor Explanation: Chapter 1, page 46

Numeric operations in a C++ expression are evaluated the same way as in an arithmetic expression. Operators contained within parenthesis are evaluated first, with the innermost parenthesis being evaluated first. Multiplication, division, and modulus operators are done next. If an expression contains a mix of multiplication, division, and modulus operators, the operators are evaluated left to right. Addition and subtraction are done next, and if the expression contains a mix of addition and subtraction, the operators are evaluated left to right.

Points Received:	5  of  5  	Comments:

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