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(TCO 2) When a program evaluates mathematical expressions, which of the following operators (or mathematical operations) has the highest precedence?

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(TCO 2) When a program evaluates mathematical expressions, which of the following operators (or mathematical operations) has the highest precedence?

(Points : 5)

      Subtraction

      Addition

      Parentheses

      All have equal precedence.

 

(TCOs 2, 7) Which one of the following is not a valid assignment statement in a program?

(Points : 5)

      b = -b

      x – 6 = a

      a = a + 1

      None of the above

 

(TCO 2) Which value will be contained in the variable x after the following statement is executed?

x = 20 – 10 * 2 / (5 – 1)

(Points : 5)

      0

      10

      5

      15

 

If you use a loop to sum up a number of test scores, you will need a variable to act as a(n) _____.

(Points : 5)

      flag

      symbol

      counter

      accumulator

(TCO 4) For maximum efficiency, which question should be asked first when working with an Or decision?

(Points : 5)

      The one less likely to be true

      The one most likely to be true

      The one that involves fewer comparisons

      There is not enough information to determine the answer.

 

(TCOs 3, 4, and 8) In the following pseudocode, which raise will an employee in Department 6 receive?

 

         If department < 2 then

                Set raise = 1000

         Else

                If department < 6 then

                       Set raise = 2500

                Else

                       Set raise = 3000

                EndIf

         EndIf

(Points : 5)

      1,000

      2,500

      3,000

      0

 

(TCOs 3 and 4) Which of the selection structures determine whether the user enters a number within a range of 5 and 15?

 

(Points : 5)

      If commission <> 15

      If commission <= 15

      If (commission < 5) || (commission >15)

      If (commission >=5) && (commission <= 15)

 

 

Question 4.4. (TCOs 3, 4, and 8) Which value gets displayed for the variable Z?

 

         Set balance = 800

         Set stateCode = 8

         Set creditCode = 9

          If (balance <> 800) AND (stateCode <> 6) AND (creditCode <> 7) then

                Set Z = 3

         Else

                Set Z = 2

         EndIf

         Display Z

(Points : 5)

      6

      2

      3

      7

 

 

 

 

Question 5.5. (TCO 5) Whether or not the loop body is executed is controlled by a(n) _____.

(Points : 5)

      Boolean expression

      arithmetic expression

      loop iteration

      assignment statement

 

 

Question 6.6. (TCO 5) Which loop must execute the body of the loop at least once?

(Points : 5)

      A pretest loop

      A post-test loop

      A sequence structure

      A selection structure

 

 

Question 7.7. (TCO 5) In the following code, how many times will the loop body be executed?

 

int num;

for (num = 10; num <= 20;num+=5)

{

Console.WriteLine(num);

}

 

(Points : 5)

      0

      3

      4

      6

 

 

 

 

Question 8.8. (TCOs 3, 5, and 8) In the following code, how many times will the loop body be executed?

 

int x=6;

while(x<=6)

{

Console.WriteLine(x);

x = x + 1;

}

(Points : 5)

      0

      1

      6

      7

 

 

 

 

Question 9.9. (TCO 6) Which is an array element?

(Points : 5)

      A specific value in an array

      An alternate name for an array

      A number that indicates the position of a particular item within an array

      A number that represents the highest value stored within an array

 

 

 

Question 10.10. (TCO 6) Which is the value of the index used to access the first element in a C# array declared as the following?

int[] num = new int[20];

(Points : 5)

      20

      9

      1

      0

 

 

 

 

Question 11.11. (TCOs 5 and 6) Which control structure can be used to process every element of an array?

 

(Points : 5)

      Selection control structure

      While loop

      For loop

      B or C

 

 

Question 12.12. (TCO 6) A zero-based array named sales has been declared and loaded with the values 100, 1100, 3400, 5550, 3000, 22300, and 1200. Which value(s) will be stored in the array element sales[0]?

(Points : 5)

      100

      1100

      3400

      100, 1100

 

 

Question 13.13. (TCOs 7 and 8) Which type of error occurs when an array subscript’s value goes beyond the total number of elements in the array?

(Points : 5)

      Syntax error

      Runtime error

      Logic error

      Out-of-bounds error

 

 

Question 14.14. (TCOs 3 and 8) Which of the following is not an advantage of modular design?

(Points : 5)

      It increases complexity.

      Modules can be reused.

      It is easier to work in teams — different people completing different modules.

      All of the above are advantages.

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