Q1. - (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: 

Use strongly typed members. 

Process Order objects in first-in-first-out order. 

Store values for each Order object. 

. Use zero-based indices. 

You need to use a collection type that meets the requirements. 

Which collection type should you use? 

A. Queue<T> 

B. SortedList 

C. LinkedList<T> 

D. HashTable 

E. Array<T> 

View Answer

Q2. - (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 

View Answer

Q3. - (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; 

View Answer

Q4. - (Topic 2) 

You need to write a method that retrieves data from a Microsoft Access 2013 database. The method must meet the following requirements: 

Be read-only. 

Be able to use the data before the entire data set is retrieved. 

Minimize the amount of system overhead and the amount of memory usage. 

Which type of object should you use in the method? 

A. DbDataReader 

B. DataContext 

C. unTyped DataSet 

D. DbDataAdapter 

View Answer

Q5. - (Topic 2) 

You are creating a class library that will be used in a web application. You need to ensure that the class library assembly is strongly named. What should you do? 

A. Use assembly attributes. 

B. Use the csc.exe /target:Library option when building the application. 

C. Use the xsd.exe command-line tool. 

D. Use the EdmGen.exe command-line tool. 

View Answer

Q6. - (Topic 2) 

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); 

View Answer

Q7. - (Topic 1) 

You use the Task.Run() method to launch a long-running data processing operation. The data processing operation often fails in times of heavy network congestion. 

If the data processing operation fails, a second operation must clean up any results of the first operation. 

You need to ensure that the second operation is invoked only if the data processing operation throws an unhandled exception. 

What should you do? 

A. Create a TaskCompletionSource<T> object and call the TrySetException() method of the object. 

B. Create a task by calling the Task.ContinueWith() method. 

C. Examine the Task.Status property immediately after the call to the Task.Run() method. 

D. Create a task inside the existing Task.Run() method by using the AttachedToParent option. 

View Answer

Q8. - (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 

View Answer

Q9. - (Topic 1) 

You are developing a C# application that includes a class named Product. The following code segment defines the Product class: 

You implement System.ComponentModel.DataAnnotations.IValidateableObject interface to provide a way to validate the Product object. 

The Product object has the following requirements: 

. The Id property must have a value greater than zero. 

. The Name property must have a value other than empty or null. You need to validate the Product object. Which code segment should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

View Answer

Q10. - (Topic 2) 

You are developing an application by using C#. The application includes a method named SendMessage. The SendMessage() method requires a string input. 

You need to replace "Hello" with "Goodbye" in the parameter that is passed to the SendMessage() 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 

View Answer