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Q121. - (Topic 1)
You are developing an application that will process orders. The debug and release versions of the application will display different logo images.
You need to ensure that the correct image path is set based on the build configuration. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Explanation:
There is no such constraint (unless you define one explicitly) RELEASE. http://stackoverflow.com/questions/507704/will-if-release-work-like-if-debug-does-in-c
Q122. - (Topic 1)
You are developing an application that includes a class named Order. The application will store a collection of Order objects.
The collection must meet the following requirements:
Internally store a key and a value for each collection item. Provide objects to iterators in ascending order based on the key. Ensure that item are accessible by zero-based index or by key.
You need to use a collection type that meets the requirements.
Which collection type should you use?
A. LinkedList
B. Queue
C. Array
D. HashTable
E. SortedList
Answer: E
Explanation:
SortedList<TKey, TValue> - Represents a collection of key/value pairs that are sorted by key based on the associated IComparer<T> implementation. http://msdn.microsoft.com/en-us/library/ms132319.aspx
Q123. 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:
Q124. - (Topic 1)
You are developing an application that accepts the input of dates from the user.
Users enter the date in their local format. The date entered by the user is stored in a string variable named inputDate. The valid date value must be placed in a DateTime variable named validatedDate.
You need to validate the entered date and convert it to Coordinated Universal Time (UTC). The code must not cause an exception to be thrown.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Explanation:
AdjustToUniversal parses s and, if necessary, converts it to UTC. Note: The DateTime.TryParse method converts the specified string representation of a date and time to its DateTime equivalent using the specified culture-specific format information and formatting style, and returns a value that indicates whether the conversion succeeded.
Q125. - (Topic 1)
You are developing an application that includes a class named UserTracker. The application includes the following code segment. (Line numbers are included for reference only.)
You need to add a user to the UserTracker instance. What should you do?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Q126. - (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
Q127. DRAG DROP - (Topic 1)
You are implementing a method that creates an instance of a class named User. The User class contains a public event named Renamed. The following code segment defines the Renamed event:
Public event EventHandler<RenameEventArgs> Renamed;
You need to create an event handler for the Renamed event by using a lambda expression.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct locations in the answer area. Each code segment 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:
Q128. - (Topic 2)
You are developing an application that includes methods named ConvertAmount and TransferFunds.
You need to ensure that the precision and range of the value in the amount variable is not lost when the TransferFunds() method is called.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Explanation: Simply use float for the TransferFunds parameter.
Note:
* The float keyword signifies a simple type that stores 32-bit floating-point values.
* The double keyword signifies a simple type that stores 64-bit floating-point values
Q129. DRAG DROP - (Topic 2)
You are developing a class named Temperature.
You need to ensure that collections of Temperature objects are sortable.
You have the following code:
Which code segments should you include in Target 1, Target 2 and Target 3 to complete the code? (To answer, drag the appropriate code segments to the correct targets in the answer area. Each code segment 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:
Q130. - (Topic 2)
You are developing an application that includes the following code segment:
You need to implement both Start() methods in a derived class named UseStart that uses the Start() 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
E. Option E
F. Option F
Answer: B,E
Explanation: B:
* Implementing Multiple Interfaces
A class can implement multiple interfaces using the following syntax:
C#
public class CDAndDVDComboPlayer : ICDPlayer, IDVDPlayer
If a class implements more than one interface where there is ambiguity in the names of members, it is resolved using the full qualifier for the property or method name. In other words, the derived class can resolve the conflict by using the fully qualified name for the method to indicate to which interface it belongs
* In C#, both inheritance and interface implementation are defined by the : operator, equivalent to extends and implements in Java. The base class should always be leftmost in the class declaration.