INSY 3300 EXAM 1 REVIEW DAVIS QUESTIONS AND ANSWERS
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Course
INSY 3300
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INSY 3300
INSY 3300 EXAM 1 REVIEW DAVIS
QUESTIONS AND ANSWERS
What are the data types in Python? (4) - Answer- strings, floats, integers, boolean
variables
Definition What are the logical operators? (3) - Answer- Allow you to connect multiple
Boolean expressions to create a compound expression: and, or,...
INSY 3300 EXAM 1 REVIEW DAVIS QUESTIONS AND ANSWERS What are the data types in Python? (4) - Answer - strings, floats, integers, boolean variables Definition What are the logical operators? (3) - Answer - Allow you to connect multiple Boolean expressions to create a compound expression: and, or, not Define what are conditional/relational operators? (6) - Answer - Determines if statement is true/false: <,>, <=, ==, >=, != What are the mathematical operators? - Answer - + - * / ** //% What is the operator precedence? - Answer - 1. Paranthesis 2. Exponents ** 3. Multiplication, divison, remainder * / // % 4.Addition, Subtraction What is a counter while? - Answer - While loop with known reiterations What is a sentinel while? - Answer - While loop with unknown reiterations, has special value to end loop When do you use which while construct? - Answer - Counter while is used when you know how many times to reiterate and sentinel is used when you dont know and its up to the user A _____ error does not prevent the program from running, but it causes it to produce incorrect results - Answer - Logic A ______ is a single function that the program must preform in order to satisfy the customer - Answer - software requirement An _________ is a set of well defined logical steps that must be taken to perform a task. - Answer - Algorithm An informal language that has no syntax rules, and is not meant to be compiled or executed is called __________. - Answer - psuedocode A ________ is a sequence of characters - Answer - string A _______ is a name that references a value in the computers memory - Answer - variable a string literal in python must be enclosed in - Answer - either single -quotes or double -
quotes A __________ makes a variable reference a value in the computers memory - Answer - assignment statement this symbol marks the beginning of a comment in python - Answer - # which of the following statements will cause an error? A. x-17 B. 17=x C. x=17 - Answer - B) 17 = x in the expression 12 + 7, the values on the right and left of the + symbol are called - Answer - operands integer division - Answer - // raises a number to a power - Answer - **
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