NEW QUESTION 1

The purpose of the Catch section in an exception handler is to:

• A. Conclude the execution of the application.
• B. Break out of the error handler.
• C. Execute code only when an exception is thrown.
• D. Execute code regardless of whether an exception is thrown.

Answer: C

NEW QUESTION 2

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.

Answer: C

NEW QUESTION 3

Which term is used to describe a class that inherits functionality from an existing class?

• A. Superclass
• B. Base class
• C. Inherited class
• D. Derived class

Answer: D

Explanation:
Classes (but not structs) support the concept of inheritance. A class that derives from another class (the base class) automatically contains all the public, protected, and internal members of the base class except its constructors and destructors.

NEW QUESTION 4

You are writing a Web application that processes room reservation requests. You need to verify that the room that a guest has selected is not already reserved by another guest.
Which type of programming should you use to determine whether the room is still available when the request is made?

• A. client-side
• B. server-side
• C. multithreaded
• D. batch processing

Answer: B

Explanation:
For room availability we need to check a database located on a server.

NEW QUESTION 5

Which type of function can a derived class override?

• A. A Protected Overridable member function
• B. A Shared function
• C. A Private Overridable function
• D. A non-overridable public member function

Answer: A

Explanation:
The Overridable modifier allows a property or method in a class to be overridden in a derived class.
You cannot specify Overridable oNr otOverridable for aPrivate method.

NEW QUESTION 6

A data warehouse database is designed to:

• A. Require validation of incoming data during real-time business transactions.
• B. Enable business decisions by collecting, consolidating, and organizing data.
• C. Support real-time business operations.
• D. Support a large number of concurrent users.

Answer: B

NEW QUESTION 7

What are the three basic states that a Windows service can be in? (Choose three.)

• A. running
• B. starting
• C. halted
• D. stopped
• E. paused

Answer: BDE

Explanation:
A service can exist in one of three basic states: Running, Paused, or Stopped.

NEW QUESTION 8
DRAG DROP
You are extending an application that stores and displays the results of various types of foot races. The application contains the following definitions:

The following code is used to display the result for a race:

The contents of the console must be as follows:
✑ 99 seconds
✑ 1.65 minutes
✑ 99
You need to implement the FootRace class.
Match the method declaration to the method body, (To answer, drag the appropriate declaration from the column on the left to its body on the right. Each declaration may be used once, more than once, or not at all. Each correct match is worth one point.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 9

This question requires that you evaluate the underlined text to determine if it is correct. Converting a value type to a reference type in an object is called boxing.
Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed" if the underlined text makes the statement correct.

• A. No change is needed
• B. unboxing
• C. interfacing
• D. mapping

Answer: :A

Explanation:
Boxing is an implicit conversion of a Value Types (C# Reference) to the type object or to any interface type implemented by this value type.

NEW QUESTION 10

This question requires that you evaluate the underlined text to determine if it is correct.
The bubble sort algorithm steps through the list to be sorted, comparing adjacent items and swapping them if they are in the wrong order.
Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed'' if the underlined text makes the statement correct.

• A. No change is needed
• B. merge
• C. library
• D. insertion

Answer: A

NEW QUESTION 11

The elements of an array must be accessed by:

• A. Calling the item that was most recently inserted into the array.
• B. Using a first-in, last-out (FILO) process.
• C. Using an integer index.
• D. Calling the last item in the memory array.

Answer: C

NEW QUESTION 12

An application presents the user with a graphical interface. The interface includes buttons
that the user clicks to perform tasks. Each time the user clicks a button, a method is called that corresponds to that button.
Which term is used to describe this programming model?

• A. Functional
• B. Service oriented
• C. Structured
• D. Event driven

Answer: D

NEW QUESTION 13

You run the following code:

What is the value of result when the code has completed?

• A. 10
• B. 20
• C. 30

Answer: B

Explanation:
The conditional-OR operator (||) performs a logical-OR of its bool operands. If the first operand evaluates to true, the second operand isn't evaluated. If the first operand
evaluates to false, the second operator determines whether the OR expression as a whole evaluates to true or false.

NEW QUESTION 14

You are creating an application that presents users with a graphical interface in which they computers that do not have network connectivity.
Which type of application should you choose?

• A. ClickOnce
• B. Windows Service
• C. Windows Forms
• D. Console-based

Answer: C

Explanation:
Use Windows Forms when a GUI is needed.

NEW QUESTION 15

How many parameters can a default constructor have?

• A. 1
• B. 2
• C. 3 or more

Answer: A

Explanation:
If a class contains no instance constructor declarations, a default instance constructor is automatically provided. That default constructor simply invokes the parameterless constructor of the direct base class.

NEW QUESTION 16

You have a class with a property.
You need to ensure that consumers of the class can write to the value of the property.
Which keyword should you use?

• A. Add
• B. value
• C. Set
• D. Get

Answer: C

Explanation:
Set:
The set { } implementation receives the implicit argument "value." This is the value to which the property is assigned.
* Property. On a class, a property gets and sets values. A simplified syntax form, properties are implemented in the IL as methods (get, set).

NEW QUESTION 17

What does the Console.Error property do within a console-based application?

• A. sets the standard error output stream
• B. gets the standard error input stream
• C. sets the standard error input stream
• D. gets the standard error output stream

Answer: D

Explanation:
The Console.Error property gets the standard error output stream.

NEW QUESTION 18
HOTSPOT
You have a base class named Tree with a friend property named color and a protected property named NumberOfLeaves. In the same project, you also have a class named Person.
For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 19

The purpose of the Finally section in an exception handler is to:

• A. Execute code regardless of whether an exception is thrown.
• B. Conclude the execution of the application.
• C. Execute code only when an exception is thrown.
• D. Break out of the error handler.

Answer: A

Explanation:
By using a finally block, you can clean up any resources that are allocated in a try block, and you can run code even if an exception occurs in the try block. Typically, the statements of a finally block run when control leaves a try statement. The transfer of control can occur as a result of normal execution, of execution of a break, continue, goto, or return statement, or of propagation of an exception out of the try statement.

NEW QUESTION 20

This question requires that you evaluate the underlined text to determine if it is correct.
The benefit of using a transaction when updating multiple tables is that the update cannot fail.
Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed" if the underlined text makes the statement correct.

• A. No change is needed
• B. succeeds or fails as a unit
• C. finishes as quickly as possible
• D. can be completed concurrently with other transactions

Answer: B

Explanation:
The benefit of using a transaction when updating multiple tables is that the update succeeds or fails as a unit.

NEW QUESTION 21
......