Web Application Development with C#
Chapter Exam Questions
Course Introduction
This course covers the design and development of dynamic, data-driven web applications using C#. Students will learn essential concepts such as the structure and behavior of web applications, server-side programming, handling HTTP requests and responses, and integrating databases for persistent storage. Emphasis will be placed on using frameworks like ASP.NET to build secure, responsive web interfaces. Through hands-on projects, learners will develop skills in managing user authentication, state management, web APIs, and deploying applications to cloud or on-premises servers, equipping them with practical expertise for building robust C# web solutions.
Recommended Textbook
Visual C# How to Program 6th Edition by Paul J. Deitel
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2
Chapter 1: Introduction to Computers, the Internet and Visual C#
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Q1) Java enables you to write programs that will run on a great variety of computer systems and computer-control devices.
A)True
B)False
Answer: True
Q2) What was the most important capability of C++ that C did not provide
A) networking technology
B) data type technology
C) object-oriented technology
D) adding dynamic content to web pages.
Answer: C
Q3) To distinguish fields or records there has to be one that is different from every other,this is called the record key.
A)True
B)False
Answer: True
Q4) Developers can createNET applications only in Visual Basic.
A)True
B)False Answer: False
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Chapter 2: Dive Into Visual Studio Community
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Sample Questions
Q1) The View menu:
A) Contains commands for displaying IDE windows and toolbars
B) Contains commands for arranging a form's controls.
C) Contains commands for managing a project and its files.
D) Contains commands for compiling a program.
Answer: A
Q2) You cannot browse the web from within the Visual Studio Community environment.
A)True
B)False
Answer: False
Q3) The toolbox contains icons representing controls used to customize forms.
A)True
B)False
Answer: True
Q4) The Microsoft Developers Network (MSDN)online library provides:
A) tutorials
B) articles
C) downloads
D) All of the above.
Answer: D
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Chapter 3: Introduction to C# Apps
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Sample Questions
Q1) Using redundant parentheses in mathematical expressions may cause errors.
A)True
B)False
Answer: False
Q2) Concatenation is the process that enables a string and another string or a value of another data type to be combined to form a new string.
A)True
B)False
Answer: True
Q3) Where can't you see errors
A)The line where the error occurred
B)The Error List window
C)The Solution window
Answer: C
Q4) A single line comment in C# begins with:
A) */
B) #
C) //
D) \\
Answer: C
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Chapter 4: Introduction to Classes,Objects,Methods and Strings
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Q1) The code
myAccount.SetName(theName); calls myAccounts's SetName method,passing theName's value as SetName's argument. A)True
B)False
Q2) Attempting to use an uninitialized local variable is a runtime error.
A)True
B)False
Q3) Which of the following statements is false
A) Set and Get methods can validate attempts to modify private data and control how that data is presented to the caller, respectively.
B) If an instance variable were public, any client of the class could see the data and modify it, including setting it to an invalid value.
C) public data allows client-code programmers to write code that depends on the class's data format. If the class's owner changes that format, any client code dependent on it would "break" and would need to be adjusted to the new format, making it subject to break again.
D) All of the above are true.
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Chapter 5: Control Statements: Part 1
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Sample Questions
Q1) Which of the following is not included in an activity diagram for a control statement
A) transition arrows
B) attribute
C) action state
D) decision symbols
Q2) A can be used in repetition structures to indicate the end of data entry.
A) counter
B) boolean
C) sentinel value
D) None of the above.
Q3) A transfer of control occurs when:
A) a program changes from input to output, or vice versa
B) a logic error occurs in a program
C) a statement other than the next one in the program executes
D) None of the above.
Q4) Top-down,stepwise refinement helps lead to well-structured algorithms.
A)True
B)False
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Chapter 6: Control Statements: Part 2
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Sample Questions
Q1) The header for (int i = 0;i < = 10;++i)will cause i to be incremented:
A) before the body begins execution
B) after the body begins to execute, but before it finishes C) after the entire body executes
D) None of the above.
Q2) A variable used as a counter should be initialized when it's declared.
A)True
B)False
Q3) Only the statements for one case can be executed in any one execution of a switch statement.
A)True
B)False
Q4) The && operator has higher precedence than the || operator.
A)True
B)False
Q5) The C# operator ^ can be used for exponentiation.
A)True B)False
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Chapter 7: Methods: a Deeper Look
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Sample Questions
Q1) When a return statement executes,control proceeds immediately to the first statement after the method that issues the return.
A)True
B)False
Q2) A static variable represents class-wide information.
A)True
B)False
Q3) A particular seed value passed to the Random class's constructor causes the Random object to always produce the same series of random numbers.
A)True
B)False
Q4) Overloaded methods normally perform similar tasks,but on different types of data.
A)True
B)False
Q5) The values produced by Random are weighted so that some values will be generated with greater frequency than others.
A)True
B)False
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Chapter 8: Arrays;Introduction to Exception Handling
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Sample Questions
Q1) When an exception is caught,the program can access the exception object's built-in ________ property to get the error message and display it.
A) Error
B) Fault
C) Message
D) Note
Q2) Constant variables also are called.
A) write-only variables
B) finals
C) named constants
D) All of the above
Q3) When an app is executed from the Command Prompt,the execution environment passes the command-line arguments to the Main method as a string.
A)True
B)False
Q4) The first element in every array is the 0th element.
A)True
B)False
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Chapter 9: Introduction to Linq and Generic Collections
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Sample Questions
Q1) What method returns the number of items in LINQ query result q
A) Length
B) Size
C) getUpperBound
D) Count
Q2) LINQ is used to query collections in the same way it's used to query arrays.
A)True
B)False
Q3) A LINQ query is executed when it's created.
A)True
B)False
Q4) TheNET collection classes provide flexible,efficient alternatives to arrays.
A)True
B)False
Q5) If multiple properties are listed in the select clause,the results will be of type SelectedList.
A)True B)False
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Chapter 10: Classes and Objects: A Deeper Look
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Sample Questions
Q1) Instance variables or methods declared with the modifier are accessible only in that class definition.
A) protected
B) static
C) private
D) None of the above.
Q2) Which statement is false
A) The actual data representation used within the class is of no concern to the class's clients.
B) Clients generally care about what the class does but not how the class does it.
C) Clients are usually involved in a class's implementation.
D) Hiding the implementation reduces the possibility that other program parts will become dependent on class-implementation details.
Q3) Attempting to modify a readonly instance variable after it's initialized is a fatal execution-time error.
A)True
B)False
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12
Chapter 11: Object-Oriented Programming: Inheritance
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Q1) A class that inherits from another class is referred to as the derived class.
A)True
B)False
Q2) How can a derived class call a base class constructor
A)implicitly
B) explicitly
C) a and b
D) the derived class cannot call the base class constructor
Q3) Inheritance is represented by a(n)________ relationship.
A) "uses"
B) "is-a"
C) "has-a"
D) None of the above.
Q4) When creating derived classes,you must use discretion in choosing the proper base class.Ideally,the base class will not contain excessive capabilities or information.
A)True
B)False
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13
Chapter 12: Object-Oriented Programming: Polymorphism
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Sample Questions
Q1) Abstract classes can provide data and services for objects.
A)True
B)False
Q2) The purpose of an interface is to:
A) provide similar objects with the same functionality, even though each will imple
B) provide different types of objects with the comparable functionality, even though each will imple
C) provide default implementations of methods and properties
D) None of the above.
Q3) Declaring a method sealed means:
A) it will prepare the object for garbage collection
B) it cannot be accessed from outside its class
C) it cannot be overloaded
D) it cannot be overridden
Q4) An interface reference may invoke only the methods that the interface declares. A)True
B)False
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14
Chapter 13: Exception Handling: A Deeper Look
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Q1) When an exception occurs it is said to have been:
A) caught
B) thrown
C) declared
D) handled
Q2) In C#,after an exception is handled,control resumes.This is known as the model of exception handling.
A) after the last catch block, termination
B) after the last catch block, resumption
C) just after the throw point, termination
D) just after the throw point, resumption
Q3) C# does not guarantee that a finally block (if one is present)will be executed if a try block is exited via a return,break or continue statement.
A)True
B)False
Q4) The StackTrace property keeps track of all the method calls that occur in a program,and that's how a program knows which method caused the error.
A)True
B)False
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Chapter 14: GUI With Windows Forms: Part 1
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Q1) In order to create an event you must click on the event icon in the properties window.
A)True
B)False
Q2) An example of a component would be:
A) a button
B) a timer
C) a form
D) All of the above
Q3) What does the method InitializeComponent contain
a) code provided by the user which sets the properties of controls that were added
b) code provided by Visual Studio which sets the properties of controls that were added
c) a and b
d) None of the above
A)True
B)False
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16
Chapter 15: GUI With Windows Forms: Part 2
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Q1) In a ComboBox only the programmer can enter items to the list.
A)True
B)False
Q2) The only controls available are the ones provided in C#.
A)True
B)False
Q3) The MultiLine property determines whether tabs can fill more than one row or not.
A)True
B)False
Q4) In order to have a tree,you must first make a root node that acts as the base for all the other nodes in the tree.
A)True
B)False
Q5) To add an item to a ListBox use the Add method of the Items property.
A)True
B)False
Q6) The View property can be changed to LargeIcon,SmallIcon,List or Details.
A)True
B)False
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Chapter 16: Strings,Characters and Regular Expressions
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Q1) The IndexOf method returns the indices of all occurrences of the given string.
A)True
B)False
Q2) Replace is a method that allows the user to change any character in a StringBuilder to the given argument.
A)True
B)False
Q3) structs are like classes in that they encapsulate reference types.
A)True
B)False
Q4) The difference between {n} and {n,} is:
A) {n} matches at least n occurrences
B) {n} matches exactly n occurrences
C) {n,} matches exactly n occurrences
D) {n,} generates a syntax error
Q5) Another way to concatenate a string is to use the ampersand (&).
A)True
B)False
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Chapter 17: Files and Streams
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Q1) The name of the file to open is specified as the first argument to the FileStream constructor.
A)True
B)False
Q2) For variables of reference types,you must check the class declaration to ensure that the type is serializable.
A)True
B)False
Q3) Console.In,Console.Out and Console.Error are used to take data in,to display data and to show error messages,respectively.
A)True
B)False
Q4) To create a new file and return a stream that can be used to process the file,use the:
A) CreateFile method of class File
B) NewFile method of class File
C) Create method of class File
D) New method of class File
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19
Chapter 18: Searching and Sorting
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Sample Questions
Q1) O(1)means that the algorithm has a constant run time.
A)True
B)False
Q2) What is the efficiency of merge sort
A) O(log n)
B) O(n)
C) O(n log n)
D) O(n2)
Q3) What does the first pass of selection sort do
A) Splits the array into two approximately equal pieces.
B) Orders the first two elements of the array.
C) Partitions the array into two unequal pieces depending on whether each element in the array is greater or less that some pivot element.
D) Locates the smallest element in the array and swaps it into the zeroth position.
Q4) Linear search is faster and more complex than the binary search.
A)True
B)False
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Chapter 19: Data Structures
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Q1) Boxing can be either implicit or explicit.
A)True
B)False
Q2) Like linked lists,stacks,and queues,trees are also linear data structures.
A)True
B)False
Q3) C# programs must explicitly release dynamically allocated memory.
A)True
B)False
Q4) Dynamic data structures grow and shrink at ______ time.
A)compilation
B) execution
C) a and b
D) None of the above
Q5) Unboxing can be either implicit or explicit.
A)True
B)False
Q6) An array is a dynamic data structure.
A)True
B)False
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Chapter 20: Generics
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Q1) All generic method declarations have a type parameter section delimited by __________.
A) curly brackets ({ and })
B) angle brackets (< and >)
C) square brackets ([ and ] )
D) parenthesis
Q2) A type parameter _____________.
A) is an identifier that is used in place of an actual type name
B) can be used to declare the return type
C) acts as a placeholder for the type of an argument passed to the generic method
D) All of the above
Q3) IComparable objects cannot,by default,be used with generic code.
A)True
B)False
Q4) It's not possible to apply multiple constraints to a type parameter.
A)True
B)False
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22
Chapter 21: Collections
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Sample Questions
Q1) Classes which implement the IEnumerator interface must contain which of the following methods
A.MoveNext
B.Reset
C.Current
D.Reverse
A) A, B, C
B) B, C, D
C) A, B, D
D) A, C, D
Q2) All collection classes in theNET Framework implement some combination of collection interfaces.
A)True
B)False
Q3) Which of the following is not a property of LinkedListNode
A) Value
B) Reference
C) Previous
D) Next
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Page 23
Chapter 22: Databases and LING
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Q1) Relational databases can be thought of as ________.
A) rows
B) columns
C) tables of rows and columns
D) three-dimensional arrays
Q2) Each foreign key can be created independently.
A)True
B)False
Q3) A relational database model allows relationships between data to be considered without concern for the ________.
A) meaning of the data
B) structure of the data
C) application of the data
D) All of the above
Q4) You can call a BindingSource's ________ method to move to the first row of the result.
A)First
B)MoveFirst
C)FirstRow
D)None of the above
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Chapter 23: Asynchronous Programming With Async and Await
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Q1) Task static method ________ enables you to wait for any one of several Tasks specified as arguments to complete-the method returns the Task that completes first.
A) FirstToComplete
B) AnyMethod
C) OneOfSeveral
D) WhenAny
Q2) Which of the following statements is false
A) ProgressBar property Minimum gets or sets a ProgressBar's minimum value.
B) ProgressBar property Maximum gets or sets a ProgressBar's maximum value.
C) ProgressBar property Value gets or sets a ProgressBar's current value. As this number increases, a ProgressBar fills with color.
D) None of the above is false.
Q3) Executing asynchronous methods in separate threads on a dual-core computer typically ________ executing the same tasks sequentially.
A) takes more time than B) takes about the same amount of time as C) takes less time than D) takes an unpredictable amount of time compared to
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Chapter 24: XML
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Q1) All XML files must end in thexml extension
A)True
B)False
Q2) The transformation process,where formatted text-based documents are cre
Ated from XML documents,involves:
A) 0 trees
B) 1 tree; the source.
C) 2 trees; the source and the result tree.
D) 3 trees; the source, the result, and the temp tree.
Q3) The proper way to make start and end tags is:
A) < name > < /name >
B) < name > < \name >
C) < \name > < name >
D) < /name > < name >
Q4) Which of the following about the XML prolog is true
A)The XML prolog is the lines that precede the root element.
B) The XML declaration must appear before comments and any other markup.
C) The XML prolog is limited to a certain number of lines.
D) a and b.
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Chapter 25: GUI With Windows Presentation Foundation
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Q1) A WPF Grid control allows child elements to be positioned using explicit coordinates.
A)True
B)False
Q2) A routed command declared in the XAML changes a control's appearance when that control enters a certain state.
A)True
B)False
Q3) Keyword ________ is used for constants whose values cannot be determined at compile time.
A) const
B) readonly
C) static
D) None of the above.
Q4) WPF uses _________ graphics,which allows graphics to scale without losing quality.
A) bitmap
B) vector
C) raster-based
D) jpeg
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