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Free 70-483 Exam Questions

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Tips To Pass MCSA Certification Exam

Manage program flow (25–30%)

• Implement multithreading and asynchronous processing
• Manage multithreading
• Implement program flow
• Iterate across collection and array items; program decisions by using switch statements, if/then, and operators; evaluate expressions
• Create and implement events and callbacks
• Create event handlers; subscribe to and unsubscribe from events; use built-in delegate types to create events; create delegates; lambda expressions; anonymous methods
• Implement exception handling

Create and use types (25–30%)

• Create types
• Consume types
• Enforce encapsulation
• Create and implement a class hierarchy
• Find, execute, and create types at runtime by using reflection
• Manage the object life cycle
• Manipulate strings

Debug applications and implement security (25–30%)

• Validate application input
• Perform symmetric and asymmetric encryption
• Manage assemblies
• Debug an application
• Implement diagnostics in an application

Implement data access (25–30%)

• Perform I/O operations
• Consume data
• Query and manipulate data and objects by using LINQ
• Serialize and deserialize data
• Store data in and retrieve data from collections

You can check the details in the Exam 70–483 Official Website.

 You should keep the following things in your mind:

1. Look for latest 70-483 preparation material
2. Get relevant 70-483 exam dumps
3. Develop your knowledge about 70-483 exam new questions

Here,70-483 exam new questions 

QUESTION 1

You write the following method (line numbers are included for reference only):

You need to ensure that the method extracts a list of URLs that match the following pattern:
@http://(www\.)?([^\.]+)\.com;
Which code should you insert at line 07? 

A. Option A

B. Option B

C. Option C

D. Option D

Correct Answer: C

Explanation: * MatchCollection

Represents the set of successful matches found by iteratively applying a regular expression pattern to the input string.

The collection is immutable (read-only) and has no public constructor. The Regex.Matches method returns a MatchCollection object.

* List.Add Method Adds an object to the end of the List. Incorrect: Not A: Gives groups array. Hence Tostring(0 method

mentioned above won\\’t give desird result Not D: ICollection.SyncRoot Property For collections whose underlying store

is not publicly available, the expected implementation is to return the current instance. Note that the pointer to the

current instance might not be sufficient for collections that wrap other collections; those should return the underlying

collection\\’s SyncRoot property.

Reference: Regex.Matches Method (String,String)

https://msdn.microsoft.com/en-us/library/b9712a7w(v=vs.110)

QUESTION 2
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. ECDsa
B. RNGCryptoServiceProvider
C. Rfc2898DeriveBytes
D. HMACSHA512
Correct Answer: D
Explanation: The HMACSHA512 class computes a Hash-based Message Authentication Code (HMAC) using the
SHA512 hash function.
Reference: https://msdn.microsoft.com/enus/library/system.security.cryptography.hmacsha512(v=vs.110).aspx  

QUESTION 3

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
Explanation: The Assembly.ReflectionOnlyLoad method (Byte[]) loads the assembly from a common object file format
(COFF)-based image containing an emitted assembly. The assembly is loaded into the reflection-only context of the
caller\\'s
application domain. You cannot execute code from an assembly loaded into the reflection-only context.
Incorrect:
Not A: The Assembly.ReflectionOnlyLoadFrom method (String) loads an assembly into the reflection-only context, given
its path.
Reference: Assembly.ReflectionOnlyLoad Method (Byte[]) https://msdn.microsoft.com/enus/library/h55she1h(v=vs.110).aspx

QUESTION 4
You are developing a C# application that has a requirement to validate some string input data by using the Regex
class.
The application includes a method named ContainsHyperlink. The ContainsHyperlink() method will verify the presence
of a URI and surrounding markup.
The following code segment defines the ContainsHyperlink() method. (Line numbers are included for reference only.)

The expression patterns used for each validation function are constant.

You need to ensure that the expression syntax is evaluated only once when the Regex object is initially instantiated.

Which code segment should you insert at line 04?

A. Option A

B. Option B

C. Option C

D. Option D

Correct Answer: D

RegexOptions.Compiled - Specifies that the regular expression is compiled to an assembly.This yields faster execution

but increases startup time.This value should not be assigned to the Options property when calling the

CompileToAssembly method. http://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regexoptions.aspx

Additional info http://stackoverflow.com/questions/513412/how-does-regexoptions-compiled-work

QUESTION 5

You are developing an application that uses multiple asynchronous tasks to optimize performance.

You need to retrieve the result of an asynchronous task.

Which code segment should you use?

A. Option A

B. Option B

C. Option C

D. Option D

Correct Answer: C

Explanation: Use the async modifier to specify that a method, lambda expression, or anonymous method is asynchronous. If you use this modifier on a method or expression, it\\'s referred to as an async method.

Example:

public async Task ExampleMethodAsync()

{

// . . . .

}

Reference: async (C# Reference)

https://msdn.microsoft.com/en-us/library/hh156513.aspx

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