FOR LOGIC PRO ONLY
1. (TCO 1) What is the first step in software development?
(Points : 5)
Develop the logical solution
Understand the problem
Plan/design the logic
Translate into code
Question 2. 2. (TCO 2) Memory locations that are used to store data used in a program are called _____.
(Points : 5)
data
variables
software
instructions
Question 3. 3. (TCO 3) Which symbol in a flowchart would be used by a developer to represent a calculation (process)?
(Points : 5)
Rectangle
Diamond
Parallelogram
Lozenge
Question 4. 4. (TCO 2) You are using dollar amounts in an algorithm. Which data type would you assign to the cost variable?
(Points : 5)
Integer
Real
String
Any of the above
Question 5. 5. (TCO 3) Which tool is used by developers to depict the relationship between modules?
(Points : 5)
Desk-checking
Flowcharts
Pseudocode
Hierarchy charts
Question 6. 6. (TCO 2) When an expression includes relational, logical, and arithmetic operators, which type of operator is evaluated first?
(Points : 5)
Arithmetic
Relational
Logical
It depends on the expression.
Question 7. 7. (TCOs 2 and 7) Which one of the following is not a valid assignment statement in a program?
(Points : 5)
total = total + 1
counter = counter + 10
tax = amount * .10
None of the above
Question 8. 8. (TCO 2) Which value will be contained in the variable x after the following statement is executed?
x = 10 + 8 / 2 * 3
(Points : 5)
3
45
22
27
Question 9. 9. (TCO 2) Which statement indicates that the variable rep is being used as an accumulator?
(Points : 5)
rep = 0
rep = rep + 1
rep = rep + x
rep = rep + 10
Question 10. 10. (TCO 4) For the following expression to be true, _____.
condition1 AND condition2
(Points : 5)
both conditions must be false
both conditions must be true
either condition can be false
either condition can be true
Question 11. 11. (TCOs 2, 7, and 8) Review the partial pseudocode below. Which is the correct math expression to complete the algorithm and calculate 25% of a cost?
Prompt “Enter total cost: “
Input cost
Set _____
Display “25% of the cost is: “ + total
(Points : 5)
total = cost
total = cost * 0.25
total = cost / 0.25
total = cost * 25%
Question 12. 12. (TCOs 3, 4, and 8) Review the pseudocode below. Which will be displayed when this algorithm executes?
Set x = 19
If ((x > = 10) AND (x < 20)) then
Display “the IF path executes”
Else
Display “the ELSE path executes”
EndIf
(Points : 5)
the IF path executes
the ELSE path executes
20
(x >= 10) AND (x < 20)
Question 13. 13. (TCOs 3, 4, and 8) Which value gets displayed for the variable X?
Set A = 5
Set B = 20
Set C = 15
If (B > 15) AND (A = 5) AND (C <= 15) then
Set X = 1
Else
Set X = 0
EndIf
Display X
(Points : 5)
5
0
10
1
1. (TCOs 2,4, 5, and 8) Write a program to input a purchase amount and calculate the sales tax and total due. The sales tax depends on the county identifying code. Counties with a number less than 15 have a 5% sales tax. The 16–30 codes have a sales tax of 6%. Codes above 30 have a sales tax of 7%. The purchase amount and county code are entered by the user. Use a loop to validate that the county code is between 8 and 40. Display the amount of the sales tax and the total.
(Points : 20)
Question 2. 2. (TCOs 3, 4, and 8) In the following pseudocode, which raise will an employee in Department 3 receive?
If department < 3 then
Set raise = 25
Else
If department < 5 then
Set raise = 50
Else
Set raise = 75
EndIf
EndIf
(Points : 5)
25
50
75
0
Question 3. 3. (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 = 6
Set creditCode = 6
If (balance > 800) OR (stateCode > 6) OR (creditCode > 7) then
Set Z = 1
Else
Set Z = 3
EndIf
Display Z
(Points : 5)
1
3
6
7
Question 5. 5. (TCO 5) The variable used in the expression controlling the loop is known as the _____.
(Points : 5)
loop control variable
loop iterations
loop expression variable
loop body
Question 6. 6. (TCO 5) A FOR loop is considered what type of loop?
(Points : 5)
A counted loop
A post-test loop
An event-controlled loop
A selection structure
Question 7. 7. (TCO 5) In the following code, how many times will the loop body be executed?
intnum;
for (num = 0; num <= 5;num++ )
{
Console.WriteLine(num);
}
(Points : 5)
0
1
5
6
Question 8. 8. (TCOs 3, 5, and 8) In the following code, how many times will the loop body be executed?
int x=1;
while(x!=6)
{
Console.WriteLine(x);
x = x + 1;
}
(Points : 5)
0
1
5
6
Question 9. 9. (TCO 6) All elements of an array must have the same _____.
(Points : 5)
subscript
index
data type
value
Question 10. 10. (TCO 6) Which one of the following correctly declares an array of five integers in C#?
(Points : 5)
int[] num = new int[4];
int[] num = new int[5];
intnum = int[5];
intnum =5;
Question 11. 11. (TCOs 5 and 6) Which statement will be placed in the loop body to double each value of the array specified in the code below?
int[] nums = new int[5];
for (int index = 0; index <5; index++)
{
What stastement goes here?
}
(Points : 5)
nums = nums * 2
nums[index] * 2
nums[index] = nums[index] *2;
None of the above
Question 12. 12. (TCO 6) A zero-based array named testGrades has been declared and loaded with the values 85, 90, 72, 95, 98, 81, and 79. Which value(s) will be stored in the array element testGrades[4]?
(Points : 5)
72
95
98
72, 95, 98
Question 13. 13. (TCOs 7 and 8) Creating a flowchart and desk-checking it before coding helps to eliminate which type of error?
(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.
Write a C# loop that counts down from 100 to 10 by 5s.
PART 1 (10 points): A furniture store is having a customer appreciation sale. Depending on the total dollars purchased, the customer could receive a discount on his or her total purchases. You are to develop pseudocode or C# code that will obtain the total dollars purchased from the user, determine the discount percentage, and display the total amount due. When the purchases are more than $2,000, the discount is 12%. When the purchases are $2,000 or less, the discount is 7%.
PART 2 (10 points): Create a function called calcDiscount that will calculate and return the discount amount. Write the function and call it in the code.
Review the following scenario and complete the design.
Scenario
Professor Higgins has asked you to design the logic that will be used to calculate final class averages and grades for his students. His grading algorithm is as follows.
Exam average: 50%
Quiz average: 25%
Lab average: 25%
< Professor Higgins has 30 students in his class. For each student, Professor Higgins will enter the students’s name and store into a “names” array. Then input the value for each of the averages (exam, quiz, and lab). Then using the weighting above the program will calculate the final student class average and store each student’s final average into an array. The program will then determine the letter grade for each student using the following criteria.
90–100: A
80–89: B
70–79 C
60–69 D
Less than 59 F
When the student’s final grade is determined, the final grade will be stored in a third “grade” array.
After all data have been input and calculations done, display the final output using the three arrays as a Grade Report with headings of NAME, AVERAGE, and GRADE.
· Display the name, final average, and grade for all the students.
· Calculate and display the total class average (total of all individual student averages / number in class).
Write a program using C#, prompt the user for the appropriate input, and display the output as described above. You may assume all data are valid. Provide a program introduction message that tells the user how to use the program.