CIS170 Information Technology in Criminal Justice Final Exam Complete Solution

Question: #9456

CIS170 Final Exam 1. (TCOs 1, 6) Because information in _____ is lost when the power is turned off, that type of memory is considered to be _____. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image002.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image002.png

auxiliary storage, nonvolatile src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image004.png

auxiliary storage, volatile src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image006.png

RAM, nonvolatile src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image008.png

RAM, volatile 2. (TCOs 1, 6) What does IDE stand for? (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image010.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image010.png

Interior Design Environment src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image012.png

Integrated Development Environment src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image014.png

Integrated Design Environment src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image016.png

Interior Development Environment 3. (TCOs 1, 6) Which keyboard function key do we use to compile and run a C# program within Visual Studio.NET? (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image018.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image018.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image020.png

F11

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image022.png

F10

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image024.png

F1 4. (TCOs 2, 3) A computer uses the _____ numbering system to represent and manipulate data. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image026.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image026.png

binary

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image028.png

decimal

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image030.png

hexadecimal src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image032.png

octal 5. (TCOs 2, 3) The proper operator precedence, from first to last, is _____. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image034.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image034.png

subtraction, addition, and multiplication src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image036.png

addition, subtraction, and multiplication src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image038.png

exponentiation, division, and subtraction src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image040.png

exponentiation, addition, and division src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image042.png

exponentiation, division, and multiplication 6. (TCOs 2, 3) Your C# program needs to store a single alphanumeric character the user will enter. When your program starts, the default setting for that character should be the letter A. You implement this functionality by writing _____. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image044.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image044.png

char myVar = A; src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image046.png

char myVar = ‘A’; src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image048.png

char myVar(‘A’); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image050.png

char myVar(A); 7. (TCO 4) The following C# code _____ compile; however, it contains a _____ error. int x = 15, y = 10; if (x < y);=> Console.WriteLine(x is less than y); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image052.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image052.png

will, compiler src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image054.png

will, logical src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image056.png

will not, compiler src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image058.png

will not, logical 8. (TCO 4) Which part of this expression will be evaluated first? if (b <= c= &&= d=>= e) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image060.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image060.png

b <=>

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image062.png

c || d

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image064.png

d >= e

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image066.png

if() 9. (TCO 5) Your program keeps asking for input from the user. If there is more input, the user types “Y” after entering the data. If there is no more input, he/she enters “N.” In this context, “Y” and “N” are used as _____. (Points : 5) accumulators src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image070.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image070.png

counters

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image072.png

integer data types src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image074.png

sentinel values 10. (TCO 5) In this code, the variable _____ is a counter and the variable _____ is an accumulator. double sum = 0, height = 2.0, stop =10, max = 50; int track = 0, num = 0; while (num <=> { sum = sum + height * num; if (sum <=> track++; num++; } src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image076.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image076.png

num, track src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image078.png

sum, track src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image080.png

track, sum src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0clip_image082.png

height, stop 1. (TCOs 7, 8) Which is a predefined C# method? (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image004.png

Console.PrintLine(); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image006.png

Console.Print(); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image008.png

Math.Sum(); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image010.png

Math.Sin(); 2. (TCOs 7, 8) Which is a valid overloaded version of the following method? float DetermineResults(float num1, float num2) (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image012.png

float DetermineResults(double num1, float num2) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image014.png

float DetermineTheResults(float num1, float num2) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image016.png

void DetermineResults(float num1, float num2) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image018.png

double DetermineResults(float num1, float num2) 3. (TCOs 7, 8) Because Main() and MyFunction() store counter in _____, the output of this code will be _____. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image020.png

different memory locations, 8 9 10 src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image022.png

the same memory location, 8 9 10 src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image024.png

different memory locations, 8 9 11 src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image026.png

the same memory location, 8 9 11 4. (TCOs 9, 10) Which of the following is not good programming practice? (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image028.png

Indenting the statements in the body of each control structure src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image030.png

Using integer types for loop control variables src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image032.png

Left-aligning nested repetition structures src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image034.png

Placing vertical spacing above and below control structures 5. (TCOs 9, 10) In Figure 1, objectB is a _____ and objectC is a _____. src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image038.png

CheckBox, Form src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image040.png

Checkbox, MenuStrip src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image042.png

RadioButton, Form src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image044.png

RadioButton, MenuStrip 6. (TCOs 9, 10) When the user of your flight reservation GUI selects the “checkBoxAirGhana” CheckBox, the string “AirGhana” should appear in the “listBoxOrder” ListBox. To implement this functionality, write _____ in the ckBoxAirGhana_CheckedChanged() event handler. (Points : 5) 7. (TCOs 11, 12) To pass the entire myInfo array to the PrintElements method, replace the commented line below with _____. src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image054.png

PrintElements(myInfo); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image056.png

PrintElements(myInfo[0]); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image058.png

PrintElements(ref myInfo); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image060.png

PrintElements(6,7,8,9); 8. (TCOs 11, 12) The size of an _____ must be determined when the program is written, whereas elements of an _____ can be added or deleted at runtime. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image062.png

ArrayList, array src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image064.png

array, ArrayList src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image066.png

array, array src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image068.png

ArrayList, ArrayList 9. (TCOs 11, 12) An array that stores four days of closing stock market prices can be declared as _____. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image070.png

decimal price1, price2, price3, price4; src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image072.png

decimal [] price = new price[4]; src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image074.png

decimal price[] = new decimal[4]; src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image076.png

decimal [] price = new decimal[4]; 10. (TCO 13) Because your C# program needs to read data from a file one character at a time, you choose to use the _____ member of the _____ class. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image078.png

ReadChars(), StreamReader src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image080.png

ReadChars(), BinaryReader src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image082.png

ReadChar(), StreamReader src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image084.png

ReadChar(), BinaryReader 11. (TCO 13) To print out the time a file called “timeSheet.txt” was created, write _____. (Points : 5) src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image086.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image086.png

Console.WriteLine(File.GetCreationTime(timeSheet.txt)); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image088.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image088.png

Console.WriteLine(GetFileInfo(“timeSheet.txt”); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image090.png

Console.WriteLine(GetCreationTime(“timeSheet.txt”); src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image092.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image092.png

Console.WriteLine(File.FileInfo(“timeSheet.txt”); 12. (TCO 13) The following C# code will print out _____. src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image094.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image094.png

the names of all files in the current directory src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image096.png

the names of all subdirectories of the root directory src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image098.png

src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image098.png

the contents of all files in the root directory src=file://localhost/Users/DeanGergi/Library/Caches/TemporaryItems/msoclip/0/clip_image100.png

the names of all subdirectories of the current directory 1. (TCO 3) Show the source code for a C# console application called “SalesTax” to display a 7% sales tax one would pay on an item that costs $150. (Note that the sales tax would be .07 times the value of the item.) · Declare and initialize appropriate variables for tax rate and item cost. · Include at least three descriptive comments. · State what your program displays when it runs. · State how you would use the debugger to check the values of your variables as your program runs. 2. (TCO 5) Describe two types of loops that can be used to write the C# code required to print every fifth integer from 0 to 500 (i.e., 0, 5, 10, 15, etc.), each on its own line. Which would be a better choice and why? Write the code using that type of loop. (Points : 20) 3. (TCO 8) Briefly describe how parameter passing by-value and by-reference are accomplished in memory. Write statement 1 to call method A below. Write statement 2 to call method B. Which method uses pass by-value? Which method uses pass by-reference? 4. (TCO 9) Identify an example of one of each of the following GUI design errors in Figure 2: 5. (TCO 2) Although the following code compiles and runs, the programmer made some major readability errors. Describe at least three changes that would make it easier for other programmers to read and understand the code. 6. (TCO 11) Write a C# program to store an array of integers 10 through 19. Use an appropriate loop to multiply all of the values in the list. Print out the result. (Points : 20)

Solution: #9493

CIS170 Information Technology in Criminal Justice Final Exam Complete Solution

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