F129 Introduction To Programming Test 1

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  • 1/10 Questions

    The result of this expression 3 + 5 * 2 + 4 is

    • 20
    • 64
    • 17
    • None of the above
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About This Quiz

This test will ask you questions up to Chapter 6 of the study guide

Programming Quizzes & Trivia

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  • 2. 

    How would you end a module which gives back the addition of 3 numbers. The module so far looks like thisCalculateSum(Integer a, Integer b, Integer c)   Integer sum = a + b + c

    • End

    • Exit

    • Return sum

    • None of the above

    Correct Answer
    A. Return sum
    Explanation
    The correct answer is "Return sum" because the module is designed to calculate the sum of three numbers and the result is stored in the variable "sum". To end the module and provide the calculated sum as the output, the "Return" statement is used. This will return the value of the "sum" variable and terminate the execution of the module.

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  • 3. 

    What is the data type of "hello "+name, where name is some variable storing the user's name

    • String

    • Character

    • Integer

    • None of the above

    Correct Answer
    A. String
    Explanation
    The data type of "hello "+name would be a string because when we concatenate the string "hello " with the variable name, the result will be a string. In programming, when we combine two strings together, the result is always a new string. Therefore, the correct answer is String.

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  • 4. 

    How would you call the module from the Control module to give you back the result of the sum, using the module mentioned in the previous question. So far the Control module looks like this:Control   Print "Give me three numbers"   Integer x   Enter x   Integer y   Enter y   Integer z   Enter z

    • Process CalculateSum(x,y,z)

    • Process CalculateSum(a, b, c)

    • Process CalculateSum(*x,*y,*z)

    • Process CalculateSum(*a, *b, *c)

    • None of the above

    Correct Answer
    A. Process CalculateSum(x,y,z)
    Explanation
    The correct answer is "Process CalculateSum(x,y,z)" because this line of code is calling the CalculateSum module and passing the variables x, y, and z as arguments. This means that the Control module is instructing the CalculateSum module to perform the calculation and return the result. The asterisks (*) in the other options are not valid syntax and do not correctly call the CalculateSum module.

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  • 5. 

    The AND and OR logical operators take two operands one on each side. What are the data types of these operands?

    • String

    • Integer

    • Character

    • Boolean

    • None of the above

    Correct Answer
    A. Boolean
    Explanation
    The operands are some boolean expression.E.g. if you want to check some mark if its greater or equal to 0 and smaller or equal to 100 you would do something like this: if mark >= 0 AND mark = 0 gives true or false, and mark =0 AND mark

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  • 6. 

    Call-by-value is

    • When you declare a variable of some certain data type

    • When a variable's value is copied into a parameter when calling some method

    • When you refer to a variable

    • When you assign a value to a variable

    Correct Answer
    A. When a variable's value is copied into a parameter when calling some method
    Explanation
    You can pass a variable to a method using call-by-value or call-by-reference. Call-by-value is simply copied into the parameter, but call-by-reference is when the actual variable is being referenced by the method you are calling. Refer to the revision sheet 2 for more information.

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  • 7. 

    The data type of the following expression squareroot(14) is

    • Integer

    • String

    • Real

    • 3.741

    Correct Answer
    A. Real
    Explanation
    Reals are those numbers with a decimal point

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  • 8. 

    Mention 4 types of data types and give an example for each.

  • 9. 

    Give the truth table (decision table) of the AND operator

  • 10. 

    Write a small program that asks the user for two numbers and you need to display back the biggest number of the two numbers that he gives you. Ideally you would use modules. Remember that you always have the Control module, then we usually have three other modules, one which caters for the input, another for the calculation, and another for the output. Also remember that in pseudo code you use Print to output on the user's screen, and Enter to wait for input from the user's keyboard. Also remember to declare the variable data type before using a variable.

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  • Current Version
  • Mar 19, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 30, 2008
    Quiz Created by
    Xenonii
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