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QUESTION 86
You are developing an application that will process personnel records. The application must encrypt highly sensitive data. You need to ensure that the application uses the strongest available encryption. Which class should you use?

A.    System.Security.Cryptography.DES
B.    System.Security.Cryptography.Aes
C.    System.Security.Cryptography.TripleDES
D.    System.Security.Cryptography.RC2

Answer: B

QUESTION 87
You have the following code (line numbers are included for reference only):

You need to ensure that if an exception occurs, the exception will be logged. Which code should you insert at line 28?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: B

QUESTION 88
You are developing an application that includes the following code segment. (Line numbers are included for reference only.)

You need to ensure that the DoWork(Widget widget) method runs. With which code segment should you replace line 24?

A.    DoWork((Widget)o);
B.    DoWork(new Widget(o));
C.    DoWork(o is Widget);
D.    DoWork((ItemBase)o);

Answer: A

QUESTION 89
You are creating a console application named Appl. App1 retrieves data from the Internet by using JavaScript Object Notation (JSON). You are developing the following code segment (line numbers are included for reference only):

You need to ensure that the code validates the JSON string. Which code should you insert at line 03?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: B

QUESTION 90
You are implementing a method named GetValidEmailAddresses. The GetValidEmailAddresses() method processes a list of string values that represent email addresses. The GetValidEmailAddresses() method must return only email addresses that are in a valid format. You need to implement the GetValidEmailAddresses() method. Which two code segments can you use to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: BD

QUESTION 91
You are modifying an application that processes loans. The following code defines the Loan class. (Line numbers are included for reference only.)

Loans are restricted to a maximum term of 10 years. The application must send a notification message if a loan request exceeds 10 years. You need to implement the notification mechanism. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: BD

QUESTION 92
Drag and Drop Question
You have an application that accesses a Microsoft SQL Server database. The database contains a stored procedure named Proc1. Procl accesses several rows of data across multiple tables. You need to ensure that after Proc1 executes, the database is left in a consistent state. While Proc1 executes, no other operation can modify data already read or changed by Proc1. (Develop the solution by selecting and ordering the required code snippets. You may not need all of the code snippets.)

Answer:

QUESTION 93
You are developing an application that includes the following code segment:

You need to implement the Open() method of each interface in a derived class named UseResources and call the Open() method of each interface. Which two code segments should you use? (Each correct answer presents part of the solution. Choose two.)

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: AC

QUESTION 94
You are developing a C# application. The application references and calls a RESTful web service named EmployeeService. The EmployeeService web service includes a method named GetEmployee, which accepts an employee ID as a parameter. The web service returns the following JSON data from the method:
{“Id”:1,”Name”:”David Jones”>
The following code segment invokes the service and stores the result:

You need to convert the returned JSON data to an Employee object for use in the application. Which code segment should you use?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: C

QUESTION 95
You are writing the following method (line numbers are included for reference only):

You need to ensure that CreateObject compiles successfully. What should you do?

A.    Insert the following code at line 02:
where T : new()
B.    Replace line 01 with the following code:
public void CreateObject<T>()
C.    Replace line 01 with the following code:
public Object CreateObject<T>()
D.    Insert the following code at line 02:
where T : Object

Answer: A

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