Q)What is the function of the POSIX system call "pthread_join"? a)For synchronization among peer threads b)The main thread waits for a thread it has created C)A created thread waits for its parent thread d)A thread waits for a prompt from the user

Define the cancellation of threads and the thread that will be the target of the cancellation.

THREAD -"C LANGUAGE" ONLY   Write a program that uses 5 threads. Initialize a shared variable with a value of 0. Each thread must add its Thread ID (tid) to the shared variable. Once a thread has done the addition, print the ID of the thread. It is important to make use of mutexes so that only one thread is incrementing the shared variable at a time. Output the value of the shared variable once all threads have finished incrementing it.

In this question, assume a standard system with isolation and memory protection. Further assume that the thread abstraction is implemented by the operating system. That is, thread_create() is a system call. 1. What do you think are the differences between the implementation of thread_create(func) and the implementation of fork()? (here, func is the address of the function that the thread should begin at). 2. What do you think are the key differences between the OS's "process" data structure and whatever data structure it uses to implement a thread?

Describe the concept of a thread pool and its role in managing threads in a multithreaded application.

If the thread pool contains no available thread : Select one: a.the server runs a new process b.the server goes to another thread pool c.the server waits until one becomes free d.the server demands for a new pool creation

Write java code to create a thread by (extending), theprogram create 3 thread that displaying “fatmah” and thenumber of thread that is running.Rewrite the above program by implementing the RunnableInterface

Problem 0. Write a version of hello.c that creates and reaps (joins) n threads, each of which prints "Hello, world" and its thread id, where n is a command-line argument, and the thread function is passed a pointer to its thread ID as its argument.

In execution of a program a new thread (A) is created and begins in the New state. As it requires an input from the user, the schedular is called and changes it into the runnab state. Finally it gets a time slice from the processor but suddenly a new urgent thread (B) appears which needs to be handled by the CPU. Thus, the thread (A) is blocked and moved back to the run queue.

Is the usage of user-level threads superior than kernel-level threads? What is the difference between user-level threads and kernel-level threads? Is there ever a period when one kind is superior than another?