Programming in C# (70-483) Free Practice Test

Question 1

You need to create a method that can be called by using a varying number of parameters.
What should you use?

A. Interface

B. Method overloading

C. Named parameters

D. Lambda expressions

Correct Answer: B

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Question 2

You are debugging an application that calculates loan interest. The application includes the following code. (Line numbers are included for reference only.)

You have the following requirements:
* The debugger must break execution within the Calculatelnterest() method when the loanAmount variable is less than or equal to zero.
* The release version of the code must not be impacted by any changes.
You need to meet the requirements.
What should you do?

A. Insert the following code segment at line 05:
Trace.Write(loanAmount > 0);

B. Insert the following code segment at line 03:
Trace.Assert(loanAmount > 0);

C. Insert the following code segment at line 03:
Debug.Assert(loanAmount > 0);

D. Insert the following code segment at tine 05:
Debug.Write(loanAmount > 0);

Correct Answer: C

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Question 3

You are creating an application that processes a list of numbers.
The application must define a method that queries the list and displays a subset of the numbers to the user. The method must not update the list.
You need to create an extendable query by using LINQ.
What should you do?

A. Option D

B. Option C

C. Option A

D. Option B

Correct Answer: B

Question 4

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 the aspnet_regiis.exe command-line tool.

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

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

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

Correct Answer: D

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Question 5

You are developing code for an application that retrieves information about Microsoft .NET Framework assemblies.
The following code segment is part of the application (line numbers are included for reference only):

You need to insert code at line 04. The code must load the assembly. Once the assembly is loaded, the code must be able to read the assembly metadata, but the code must be denied access from executing code from the assembly.
Which code segment should you insert at line 04?

A. Assembly.ReflectionOnlyLoadFrom(bytes);

B. Assembly.ReflectionOnlyLoad(bytes);

C. Assembly.Load(bytes);

D. Assembly.LoadFrom(bytes);

Correct Answer: B

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Question 6

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 D

B. Option C

C. Option A

D. Option B

Correct Answer: C

Question 7

You are creating a class named Data that includes a dictionary object named _data.
You need to allow the garbage collection process to collect the references of the _data object.
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:

Question 8

You need to write code that will display value1, and then value2 in the console.
You write the following code:

How should you complete the code? To answer, drag the appropriate code elements to the correct targets. Each code element 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.
NOTE: Each correct selection is worth one point.

Correct Answer:

Question 9

You are debugging a 64-bit C# application.
Users report System.OutOfMemoryException exceptions. The system is attempting to use arrays larger than 2 GB in size.
You need to ensure that the application can use arrays larger than 2 GB.
What should you do?

A. Set the value of the gcAllowVeryLargeObjects property to true in the application configuration file.

B. Set the value of the user-mode virtual address space setting for the operating system to MAX.
On 64-bit platforms the gcAllowVeryLargeObjects enables arrays that are greater than 2 gigabytes (GB) in total size.

C. Set the IMAGE_FILE_LARGE_ADDRESS_AWARE flag in the image header for the application executable file.

D. Add the /3GB switch to the boot.ini file for the operating system.

Correct Answer: A

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Question 10

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 D

B. Option C

C. Option A

D. Option B

Correct Answer: B

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Question 11

You are creating a console application by using C#.
You need to access the assembly found in the file named car.dll.
Which code segment should you use?

A. This.GetType();

B. Assembly.Load();

C. Assembly.LoadFile("car.dll");

D. Assembly.GetExecutingAssembly();

Correct Answer: C

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Question 12

You are debugging an application that calculates loan interest. The application includes the following code. (Line numbers are included for reference only.)

You need to ensure that the debugger breaks execution within the CalculateInterest() method when the loanAmount variable is less than or equal to zero in all builds of the application.
What should you do?

A. Insert the following code segment at line 05:
Trace.Write(loanAmount > 0);

B. Insert the following code segment at line 05:
Debug.Write(loanAmount > 0);

C. Insert the following code segment at line 03:
Trace.Assert(loanAmount > 0);

D. Insert the following code segment at line 03:
Debug.Assert(loanAmount > 0);

Correct Answer: C

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Question 13

You are developing an application that will transmit large amounts of data between a client computer and a server. You need to ensure the validity of the data by using a cryptographic hashing algorithm. Which algorithm should you use?

A. RSA

B. HMACSHA256

C. RNGCryptoServiceProvider

D. Aes

Correct Answer: B

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Microsoft Programming in C# (70-483) Free Practice Test