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Q71. - (Topic 2)
You are developing an application that retrieves patient data from a web service. The application stores the JSON messages returned from the web service in a string variable named PatientAsJson. The variable is encoded as UTF-8. The application includes a class named Patient that is defined by the following code:
You need to populate the Patient class with the data returned from the web service. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q72. DRAG DROP - (Topic 1)
You are developing an application that will include a method named GetData. The
GetData() method will retrieve several lines of data from a web service by using a
System.IO.StreamReader object.
You have the following requirements:
. The GetData() method must return a string value that contains the first line of the response from the web service. . The application must remain responsive while the GetData() method runs.
You need to implement the GetData() method.
How should you complete the relevant code? (To answer, drag the appropriate objects to the correct locations in the answer area. Each object may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)
Answer:
Q73. - (Topic 1)
You are implementing a method named Calculate that performs conversions between value types and reference types. The following code segment implements the method. (Line numbers are included for reference only.)
You need to ensure that the application does not throw exceptions on invalid conversions.
Which code segment should you insert at line 04?
A. int balance = (int) (float)amountRef;
B. int balance = (int)amountRef;
C. int balance = amountRef;
D. int balance = (int) (double) amountRef;
Answer: A
Q74. - (Topic 2)
You are modifying an existing banking application.
The application includes an Account class and a Customer class. The following code segment defines the classes.
You populate a collection named customerCollection with Customer and Account objects by using the following code segment:
You create a largeCustomerAccounts collection to store the Account objects by using the following code segment:
Collection<Account> largeCustomerAccounts = new Collection<Account> ();
All accounts with a Balance value greater than or equal to 1,000,000 must be tracked.
You need to populate the largeCustomerAccounts collection with Account objects.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Q75. - (Topic 2)
You have the following code:
You need to retrieve all of the numbers from the items variable that are greater than 80. Which code should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q76. DRAG DROP - (Topic 2)
You are creating a method that saves information to a database.
You have a static class named LogHelper. LogHelper has a method named Log to log the exception.
You need to use the LogHelper Log method to log the exception raised by the database server. The solution must ensure that the exception can be caught by the calling method, while preserving the original stack trace.
How should you write the catch block? (Develop the solution by selecting and ordering the required code snippets. You may not need all of the code snippets.)
Answer:
Q77. - (Topic 2)
You are evaluating a method that calculates loan interest- The application includes the following code segment. (Line numbers are included for reference only.)
When the loanTerm value is 3 and the loanAmount value is 9750, the loanRate must be set to 8.25 percent.
You need to adjust the loanRate value to meet the requirements.
What should you do?
A. Replace line 04 with the following code segment: decimal loanRate = 0.0325m;
B. Replace line 17 with the following code segment: interestAmount = loanAmount * 0.0825m * loanTerm;
C. Replace line 15 with the following code segment: loanRate = 0.0825m;
D. Replace line 07 with the following code segment: loanRate = 0.0825m;
Answer: C
Q78. - (Topic 2)
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: B,D
Explanation: Note:
* List<T>.Add Method
Adds an object to the end of the List<T>.
Q79. - (Topic 2)
You are developing an application.
The application contains the following code:
When you compile the code, you receive the following syntax error message: "A previous catch clause already catches all exceptions of this or a super type ('System.Exception')."
You need to ensure that the code can be compiled. What should you do?
A. Catch the ArgumentException exception instead of the ArgumentNullException exception.
B. Throw a new exception in the second catch block.
C. Catch the ArgumentNullException exception first.
D. Re-throw the exception caught by the second catch block.
Answer: A
Q80. - (Topic 2)
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: A
Explanation: * XmlWriterTraceListener
Directs tracing or debugging output as XML-encoded data to a TextWriter or to a Stream,
such as a FileStream.