C173 Exam Expected Questions and Answers (Verified by Expert)

C173 Exam Expected Questions and Answers (Verified by Expert) C173 Exam Expected Questions and Answers (Verified by Expert) C173 Exam Expected Questions and Answers (Verified by Expert) WGU C173 Pre-Assessment Questions and Answers (Verified Answers) 1. Which operator should be used to determine if a number is evenly divisible by 5? A + B - C * D % ANS D 2. A car drove 200 miles using 10 gallons of fuel. Which operation should be used to compute the miles per gallon, which is 20? A Addition B Subtraction C Multiplication D Division ANS D 3. A variable should hold a person's height in meters. Which data type should the variable be? A Integer B Float C String D Boolean ANS B 4. A variable should hold the names of all past U.S. presidents. Which data type should the variable be? A Integer array B Float array C String array D Boolean array ANS C 5. A program uses the number of seconds in a minute in various calculations. How should the item that holds the number of seconds in a minute be de- clared? A Constant float userTime B Variable float userTime C Constant integer secondsPerMinute D Variable integer secondsPerMinute ANS C 6. A program determines if a user's age is high enough to run for U.S. presi- dent. The minimum age requirement is 35. How should the item that holds the minimum age be declared? A Constant integer minAge B Variable integer minAge C Constant integer 35 D Variable integer 35 ANS A 7. Given integer x = 3 and integer y = 5. What is the value of the expression ( x / 2.0) + y? A 5.0 B 6.0 C 6.5 7 7.5 ANS C 8. Given float x = 10.2 and float y = 1.0. What is the value of the expression x / y ? A 0.0 B 1.0 C 10 D 10.2 ANS D 9. What kind of operator is the == in the expression i == 20? A Assignment B Arithmetic C Equality D Logical ANS C 10. What is the purpose of parentheses () in a programming expression? A To print expressions B To group expressions C To run expressions D To compose expressions ANS B 11. Given float x = 3.0. Which expression evaluates to 2.0? A x / 3 * 2 + 2 B x - 2/3 C x + 0.5 /2 D x / 2 + 0.5 /2 + .25 ANS D 12. Which expression evaluates to true only when the user is within 3 years of 21 years, given a variable x containing a user's age? A x >= 18) or ( x <= 24) B ( x >= 18) and ( x <= 24) C ( x < 18) or ( x > 24) D ( x < 18) and ( x > 24) ANS B 13. Which data type is used for items that are measured in length? A Integer B Float C String D Boolean ANS B 14. Which data type should be used to keep track of how many planes are in a hangar? A Integer B Float C String D Boolean ANS A 15. A function should convert hours and minutes to seconds, such as convert- ing 1 hour and 10 minutes to 4,200 seconds. What should be the input to the function? A Hours only B Minutes only C Hours and minutes D Hours, minutes, and seconds ANS C 16. A function returns a number x cubed. For example, if x is 3, the function returns 3 * 3 * 3, or 27. What should be the input to the function? A x B x, x C x, x, x D 27 ANS A 17. A function calculates the weight difference (Diff) given two sample weights (S1 and S2). What should be the output from the function? A S1 only B S2 only C S1 and S2 D Diff ANS D 18. function P(integer x) returns integer y y = 2 * x What does P(5) evaluate to? A 2 B 5 C 10 D 25 ANS C 19. Function F() Put "Hey" to output What entire output appears after three successive calls to F()? A Hey B HHHey C HeyHeyHey D Hey Hey Hey ANS C 20. What is a valid user-defined function name? A A reserved word B Any valid identifier C Any variable name D A floating-point number ANS B