Deck 3

Question 1

Which feature protects computers from running untrusted applications?

Answer 1

Code Access security

Question 2

The SecureString class:

Answer 2

Protects data from being revealed during garbage collection.

Question 3

Which two methods can you use to load an assembly? (Each correct answer presents a complete solution. Choose two.)

Answer 3

LoadModule(String, ByteQ)
—–AND—–
Load(String)

Question 4

What is the purpose of strong naming?

Answer 4

To assign a globally unique key to the assembly.

Question 5

Which standard allows data types to be interchanged among all Common Language Infrastructure (CLI) programming languages?

Answer 5

Common Type System (CTS)

Question 6

You have created a program that writes status updates into a file. You want to modify the file. You need to ensure that other users can view the file while it is being modified. Which permission should you use to open the file?

Answer 6

FileShare.Read

Question 7

Which two classes in the .NET Framework allow you to delete a file? (Each correct answer presents a complete solution. Choose two.)

Answer 7

System.IO.FileInfo
—–AND—–
System.IO.File

Question 8

You want to substitute values in a string that is displayed on the console. Which code fragment will display “Hello, World”?

Answer 8

Console.WriteLine(“Hello, {0}”, “World”);

Question 9

Where are the command line arguments stored for a console application?

Answer 9

In a string array parameter that is passed to the Main method.

Question 10

You create a class that uses unmanaged resources. You need to ensure that users of the class can explicitly release resources when the instance of the class is no longer required. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

Answer 10

Use a class destructor that is called from within the Dispose method.
-----AND-----
Implement the IDisposable interface.

Question 11

Value type variables are stored in the:

Answer 11

Stack

Question 12

Managed code manages:

Answer 12

Processor optimization.

Question 13

What does the .NET Framework use to pass data between managed and unmanaged code?

Answer 13

Marshaling

Question 14

Which should you use to call a class written in C# from a program written in Microsoft Visual Basic .NET?

Answer 14

The Visual Basic .NET syntax

Question 15

Type-safe code accesses only the memory locations:

Answer 15

It is authorized to access.

Question 16

A type-safe language prevents:

Answer 16

Access to arbitrary memory locations.

Question 17

How does managed .NET code use an unmanaged COM object?

Answer 17

The CLR creates a runtime callable wrapper (RCW) that acts as a proxy for the unmanaged object.

Question 18

Type-safe code prevents:

Answer 18

Unauthorized memory access.

Question 19

You need to encrypt data by using a public key and a private key. Which .NET class should you use?

Answer 19

DSACryptoServiceProvider

Question 20

You want to enable access to files and folders by using the .NET Framework. Which security class should you use?

Answer 20

FileIOPermission