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NEW QUESTION 1
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 2
This question requires that you evaluate the underlined text to determine if it is correct.
The duplication of code so that modifications can happen in parallel is known as separating.
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. branching
- C. merging
- D. splitting
Answer: B
Explanation:
When you develop applications in a team-based environment, you might need to access multiple versions of your application at the same time. If you copy one or more areas of your code into a separate branch, you can update one copy while you preserve the original version, or you can update both branches to meet different needs. Depending on your development goals, you can later merge the changes from multiple branches to create a single version that reflects all changes
NEW QUESTION 3
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 4
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
Answer: D
Explanation:
LocalService , which runs in the context of an account that acts as a non- privileged user on the local computer, and presents anonymous credentials to any remote server;
NEW QUESTION 5
In the application life cycle, the revision of an application after it has been deployed is referred to as:
- A. Unit testing
- B. Integration
- C. Maintenance
- D. Monitoring
Answer: C
NEW QUESTION 6
Which language uses Data Definition Language (DDL) and Data Manipulation Language (DML)?
- A. SQL
- B. C++
- C. Pascal
- D. Java
Answer: A
Explanation:
SQL uses DDL and DML.
NEW QUESTION 7
You are creating a routine that will perform calculations by using a repetition structure. You need to ensure that the entire loop executes at least once.
Which looping structure should you use?
- A. For
- B. While
- C. Do„While
- D. Fo
- E. „Each
Answer: :C
Explanation:
In a Do..While loop the test is at the end of the structure, so it will be executed at least once.
NEW QUESTION 8
The Dog class and the Cat class inherit from the Animal class. The Animal class includes a breathe() method and a speak() method. If the speak() method is called from an object of
type Dog, the result is a bark. If the speak() method is called from an object of type Cat, the result is a meow.
Which term is used to describe this object-oriented concept?
- A. multiple inheritance
- B. encapsulation
- C. polymorphism
- D. data hiding
Answer: C
Explanation:
Polymorphism is often referred to as the third pillar of object-oriented programming, after encapsulation and inheritance. Polymorphism is a Greek word that means "many-shaped" and it has two distinct aspects:
* At run time, objects of a derived class may be treated as objects of a base class in places such as method parameters and collections or arrays. When this occurs, the object's declared type is no longer identical to its run-time type.
* Base classes may define and implement virtual methods, and derived classes can override them, which means they provide their own definition and implementation. At run- time, when client code calls the method, the CLR looks up the run-time type of the object, and invokes that override of the virtual method. Thus in your source code you can call a method on a base class, and cause a derived class's version of the method to be executed.
NEW QUESTION 9
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 10
You have a class named Truck that inherits from a base class named Vehicle. The Vehicle class includes a protected method named brake ().
How should you call the Truck class implementation of the brake () method?
- A. Vehicl
- B. brake ();
- C. Thi
- D. brake ();
- E. MyBas
- F. brake();
- G. Truc
- H. brake ();
Answer: C
Explanation:
The MyBase keyword behaves like an object variable referring to the base class of the current instance of a class.MyBase is commonly used to access base class
members that are overridden or shadowed in a derived class.
NEW QUESTION 11
You have a stack that contains integer values. The values are pushed onto the stack in the following order: 2,4,6,8.
The following sequence of operations is executed:
Pop Push 3 Pop Push 4
Push 6
Push 7 Pop Pop Pop
What is the value of the top element after these operations are executed?
- A. 2
- B. 3
- C. 6
- D. 7
Answer: B
NEW QUESTION 12
You have a class named Glass that inherits from a base class named Window. The Window class includes a protected method named break().
How should you call the Glass class implementation of the break() method?
- A. Window.break();
- B. Glass.break();
- C. this.break();
- D. base.break();
Answer: A
NEW QUESTION 13
When a web service is referenced from a client application in Microsoft Visual Studio, which two items are created? (Choose two.)
- A. a stub
- B. a.wsdl file
- C. a proxy
- D. a .disco file
Answer: BD
Explanation:
A .wsdl file that references the Web service is created, together with supporting files, such as discovery (.disco and .discomap) files, that include information about where the Web service is located.
NEW QUESTION 14
This question requires that you evaluate the underlined text to determine if it is correct.
Internet Information Services (IIS) must be installed on the client computers in order to run a deployed ASP.NET application.
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. computer that hosts the application
- C. computer that you plan to deploy from
- D. Application Layer Gateway Service
Answer: B
Explanation:
Internet Information Services (IIS) must be installed on computer that hosts the application in order to run a deployed ASP.NET application.
NEW QUESTION 15
You are creating the necessary variables for an application. The data you will store in these variables has the following characteristics:
✑ Consists of numbers
✑ Includes numbers that have decimal points
✑ Requires more than seven digits of precision
You need to use a data type that will minimize the amount of memory that is used. Which data type should you use?
- A. decimal
- B. double
- C. byte
- D. float
Answer: B
Explanation:
The double keyword signifies a simple type that stores 64-bit floating-point values.
Precision: 15-16 digits
Incorrect:
Not D: The float keyword signifies a simple type that stores 32-bit floating-point values. Precision: 7 digits
NEW QUESTION 16
A class named Manager is derived from a parent class named Employee. The Manager class includes characteristics that are unique to managers.
Which term is used to describe this object-oriented concept?
- A. inheritance
- B. data modeling
- C. data hiding
- D. encapsulation
Answer: A
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.
Incorrect:
not D: Encapsulation is sometimes referred to as the first pillar or principle of object- oriented programming. According to the principle of encapsulation, a class or struct can specify how accessible each of its members is to code outside of the class or struct. Methods and variables that are not intended to be used from outside of the class or assembly can be hidden to limit the potential for coding errors or malicious exploits.
NEW QUESTION 17
You need to create an application that processes data on a last-in, first-out (LIFO) basis. Which data structure should you use?
- A. Queue
- B. Tree
- C. Stack
- D. Array
Answer: C
Explanation:
A stack implements LIFO.
NEW QUESTION 18
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 19
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
Answer: A
Explanation:
The server, in response to this request, displays the Web service's HTML description page.
The Web service's HTML description page shows you all the Web service methods supported by a particular Web service. Link to the desired Web service method and enter the necessary parameters to test the method and see the XML response.
NEW QUESTION 20
HOTSPOT
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 21
You are creating an application that presents the user with a Windows Form. Which event is triggered each time the Windows Form receives focus?
- A. Load
- B. Enter
- C. Activated
- D. paint
Answer: B
Explanation:
When you change the focus by using the mouse or by calling the Focus method, focus events of the Control class occur in the following order:
Enter GotFocus LostFocus Leave Validating Validated
NEW QUESTION 22
The following functions are defined:
What does the console display after the following line? Printer(2)
- A. 210
- B. 211
- C. 2101
- D. 2121
Answer: B
NEW QUESTION 23
When a web service is referenced from a client application in Microsoft Visual Studio, which two items are created? (Choose two.)
- A. a stub
- B. a proxy
- C. a.disco file
- D. a.wsdlfile
Answer: CD
Explanation:
A .wsdl file that references the Web service is created, together with supporting files, such as discovery (.disco and .discomap) files, that include information about where the Web service is located.
NEW QUESTION 24
Class C and Class D inherit from Class B. Class B inherits from Class A. The classes have the methods shown in the following table.
All methods have a protected scope.
Which methods does Class C have access to?
- A. only m1, m3
- B. only m2, m3
- C. m1, m3, m4
- D. m1, m2, m3
- E. m2, m3, m4
- F. only m3, m4
Answer: D
NEW QUESTION 25
HOTSPOT
You are developing a web application.
You need to create the following graphic by using Cascading Style Sheets (CSS):
Use the drop-down menus to select the answer choice that completes each statement. Each correct selection is worth one point.
- A. Mastered
- B. Not Mastered
Answer: A
Explanation: 
NEW QUESTION 26
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