Multithreading Questions and Answers

1. ) What is thread ?                                                                                                              
A thread is basically a separate sequence of instruction designed to performing a " specific task" in the program.

2. ) What is Multithreading in c# ?                                                                                   
Performing multiple task at same time during the execution of a program,is known as multithreading.

3. ) What is the Namespace used for multithreading in c# ?                                      
using System.Threading;

4. ) What are the advantage of multithreading in c# ?                                                 
There are two main  advantage to use of multithreading in c#.

• Optimize the use of computer resources such as memory.
• Save time

5. ) What are the classes used in System.Threading Namespace ?                           

• Thread 
• Thread Pool
• Monitor
• Mutex

6. ) What is the use of Thread class in c#?                                                                    
The Thread class is used to perform tasks such as creating and setting the priority of a thread.

7. ) What are the main properties of thread class?                                                      

• Priority
• Thread State
• IsAlive
• Current thread
• Name    etc.

8. ) What are the methods used in thread class?                                                       

• Join
• Resume
• sleep
• Spin Wait
• Suspended
• Start
• Interrupt

9. ) What is the Thread Pool class in c#?                                                                        
The Thread Pool class is used,to perform task such as processing of asynchronous i/o and waiting on behalf of another thread.

10. ) What are the method used in Thread Pool class ?                                                

• Gettype
• Equals
• SetMaxThreads
• QueueUserWorkItem

11. ) What is monitor class in c# ?                                                                                     
The Monitor class is used to access an object by granting a lock for the object to a single thread.

12. ) What are the methods used in monitor class  ?                                                     

• Enter
• Exit
• TryEnter
• Wait
• GetType

13. ) What is Mutex class in c# ?                                                                                        
A Mutex is used ,to perform interprocess  synchronization and a thread to have exclusive access to shared resources.

14. ) What are the methods used in Mutex class ?                                                         

• Equals
• close
• OpenExisting
• SetAccessControl
• Release Mutex

15. ) What are the syntax for creating and starting a thread in c# ?                         
First define a delegate:-
Public delegate void start_thread();
Create a new thread:-
Thread thread_name = new Thread(new start_thread(method_name));
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16. ) Can we create timer in threading ?                                                                           

Yes.

17. ) How can we scheduled a thread in c# ?                                                                   
We can scheduled the  thread with the help of priority property of the Thread class. 

18. ) What are the priority value used for scheduling a thread in c# ?                    

• Highest
• Normal
• AboveNormal
• BelowNormal
• Lowest

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19. ) What are the two types of thread in c# ?                                                               

• Foreground thread
• Background thread

20 .) What is difference between Foreground and Background thread ?                 

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