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

Comment: *

Name: *

Email: *

Verification: *

An application receives JSON data in the following format:

The application includes the following code segment. (Line numbers are included for reference only.)

You need to ensure that the ConvertToName()method returns the JSON input string as a Name object.
Which code segment should you insert at line 10?

• A.Return ser.ConvertToType<Name>(json);
• B.Return ser.DeserializeObject(json);
• C.Return ser.Deserialize<Name>(json);
• D.Return (Name)ser.Serialize(json);

Comment: *

Name: *

Email: *

Verification: *

You are developing an application. The application calls a method that returns an array of integers named employeeIds. You define an integer variable named employeeIdToRemove and assign a value to it. You declare an array named filteredEmployeeIds.
You have the following requirements:
---
Remove duplicate integers from the employeeIds array.
Sort the array in order from the highest value to the lowest value.
Remove the integer value stored in the employeeIdToRemove variable from the
employeeIds array.
You need to create a LINQ query to meet the requirements.
Which code segment should you use?

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

Comment: *

Name: *

Email: *

Verification: *

DRAG DROP
You are developing an application that implements a set of custom exception types. You declare the custom exception types by using the following code segments:

The application includes a function named DoWork that throws .NET Framework exceptions and custom exceptions.
The application contains only the following logging methods:

The application must meet the following requirements:
* When AdventureWorksValidationException exceptions are caught, log the information by using the static void Log (AdventureWorksValidationException ex) method.
* When AdventureWorksDbException or other AdventureWorksException
exceptions are caught, log the information by using the static void I oq(
AdventureWorksException ex) method.
You need to meet the requirements.
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.)

Correct Answer:

Comment: *

Name: *

Email: *

Verification: *

DRAG DROP
You are developing an application that includes a class named Warehouse. The Warehouse class includes a static property named Inventory- The Warehouse class is defined by the following code segment. (Line numbers are included for reference only.)

You have the following requirements:
* Initialize the _inventory field to an Inventory instance.
* Initialize the _inventory field only once.
* Ensure that the application code acquires a lock only when the _inventory object must be instantiated.
You need to meet the requirements.
Which three code segments should you insert in sequence at line 09? (To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.)

Correct Answer:

Explanation:

After taking a lock you must check once again the _inventory field to be sure that other threads didn't instantiated it in the meantime.
First, you check if the inventory is null, if so, you lock it to avoid other threads to change it.
Second, you check again for the null, as in the tiny millisecond between check for null and locking could another thread get it.
Finally you create the instance and release the lock.

Comment: *

Name: *

Email: *

Verification: *