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Question 1:
Which type of Windows application presents a parent window that contains child windows?
A. Application programming interface (API)
B. Single-document interface (SDI)
C. Multiple-document interface (MDI)
D. Command-line interface (CLI)
Correct Answer: C
A multiple document interface (MDI) is a graphical user interface in which multiple windows reside under a single parent window. Such systems often allow child windows to embed other windows inside them as well, creating complex nested hierarchies. This contrasts with single document interfaces (SDI) where all windows are independent of each other.
Question 2:
You create an object of type ANumber. The class is defined as follows.
What is the value of _number after the code is executed?
A. Null
B. 0
C. 3
D. 7
Correct Answer: C
Question 3:
You need to allow a consumer of a class to modify a private data member.
What should you do?
A. Assign a value directly to the data member.
B. Provide a private function that assigns a value to the data member.
C. Provide a public function that assigns a value to the data member.
D. Create global variables in the class.
Correct Answer: C
In this example (see below), the Employee class contains two private data members, name and salary. As private members, they cannot be accessed except by member methods. Public methods named GetName and Salary are added to
allow controlled access to the private members. The name member is accessed by way of a public method, and the salary member is accessed by way of a public read-only property.
Note: The private keyword is a member access modifier. Private access is the least permissive access level. Private members are accessible only within the body of the class or the struct in which they are declared
Example:
class Employee2
{
private string name = “FirstName, LastName”;
private double salary = 100.0;
public string GetName()
{
return name;
}
public double Salary
{
get { return salary; }
}
}
Question 4:
You are designing a class for an application. You need to restrict the availability of the member variable accessCount to the base class and to any classes that are derived from the base class.
Which access modifier should you use?
A. Internal
B. Protected
C. Private
D. Public
Correct Answer: C
Question 5:
You are creating an application that presents users with a graphical interface in which they can enter data. The application must run on computers that do not have network connectivity. Which type of application should you choose?
A. Console-based
B. Windows Forms
C. Windows Service
D. ClickOnce
Correct Answer: B
Use Windows Forms when a GUI is needed.
Question 6:
The elements of an array must be accessed by:
A. Calling the item that was most recently inserted into the array.
B. Calling the last item in the memory array.
C. Using an integer index.
D. Using a first-in, last-out (FILO) process.
Correct Answer: C
Question 7:
You are creating an application that accepts input and displays a response to the user. You cannot create a graphical interface for this application. Which type of application should you create?
A. Windows Forms
B. Windows Service
C. Web-based
D. Console-based
Correct Answer: C
Question 8:
You execute the following code.
What will the variable result be?
A. 1
B. 2
C. 3
D. 4
Correct Answer: B
Question 9:
You are reviewing a design for a database. A portion of this design is shown in the exhibits. Note that you may choose either the Crow\’s Foot Notation or Chen Notation version of the design. (To view the Crow\’s Foot Notation, click the Exhibit A button. To view the Chen Notation, click the Exhibit B button. )
Which term is used to describe the Customer component?
A. Field
B. Attribute
C. Property
D. Entity
Correct Answer: D
Customer is a table (entity).
Question 10:
Which of the following must exist to inherit attributes from a particular class?
A. Public properties
B. A has-a relationship
C. An is-a relationship
D. Static members
Correct Answer: B
Visual Basic has been a pioneer of binary code reuse — controls being the classic example. You reuse the code in a control by placing an instance of the control on your form. This is known as a containment relationship or a has-arelationship; that is, the form contains or has a CommandButton.
Question 11:
What is displayed when you attempt to access a Web service by using a Web browser?
A. a listing of methods that are available in the Web service
B. a directory listing of the Web service\’s application structure
C. an error page explaining that you have accessed the Web service incorrectly
D. a visual depiction of your preliminary connection to the Web service
Correct Answer: A
Question 12:
What are two advantages of normalization in a database? (Choose two)
A. prevents data inconsistencies
B. reduces schema limitations
C. minimizes impact of data corruption
D. decreases space used on disk
Correct Answer: AB
Question 13:
You have a Windows Service running in the context of an account that acts as a non-privileged user on the local computer. The account presents anonymous credentials to any remote server. What is the security context of the Windows Service?
A. LocalSystem
B. User
C. NetworkService
D. LocalService
Correct Answer: B
Question 14:
You run the following code:
What is the value of result when the code has completed?
A. 0
B. 10
C. 20
D. 30
Correct Answer: B
Question 15:
Which service can host an ASP.NET application?
A. Internet Information Services
B. Cluster Services
C. Remote Desktop Services
D. Web Services
Correct Answer: B