QUESTION 17 Thread-local storage is data that OA) is not associated with any process OB) has been modified by the thread, but not yet updated to the parent process OC) is generated by the thread independent of the thread's process OD) is unique to each thread QUESTION 18 In multithreaded programs, the kernel informs an application about certain events using a procedure known as a(n) OA) signal OB) upcall OC) event handler OD) pool
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- The B_____method of threads begins but does not execute a thread. The ______ method executes a thread.I am not recieving correct answers for the previously submitted questions. Please follow the instructions. Create a C++ application that will exhibit concurrency concepts. Your application should create two threads that will act as counters. One thread should count up to 20, FIRST. ONCE thread one reaches 20, THEN a second thread should be used to count down to 0. For your created code, provide a detailed analysis of appropriate concepts that could impact your application. Specifically, address: Performance issues with concurrency Vulnerabilities exhibited with use of strings Security of the data types exhibited.Select : True or False A heavyweight process is called Thread * Kernel-level threads are faster to create and manage * User-level threads are faster to create and manage * Convey effect is related to SJF * Dispatch Latency must be slow *
- Create a C++ application that will exhibit concurrency concepts. Your application should create two threads that will act as counters. One thread should count up to 20. Once thread one reaches 20, then a second thread should be used to count down to 0. For your created code, provide a detailed analysis of appropriate concepts that could impact your application. Specifically, address: Performance issues with concurrency Vulnerabilities exhibited with use of strings Security of the data types exhibited.Course: Operating Systems write a multi-threadeddirectory copy program. The program will create destination directory and open thesource directory. Then for each file in the source directory it will create a thread. Thethread will copy file from source directory to the destination directory. At the end it willprint the number of files copied. Both the source and destination names will be passed ascommand line arguments. Sample execution is as follows:mtcopy.exe source_dir destination_dirCopied 8 files Note: The answer is availible on chegg.Create a Java application that will exhibit concurrency concepts. Your application should create two threads that will act as counters. One thread should count up to 20. Once thread one reaches 20, then a second thread should be used to count down to 0. For your created code, please be provide a detailed analysis of appropriate concepts that could impact your application. Specifically, please address: Performance issues with concurrency Vulnerabilities exhibited with use of strings Security of the data types exhibited.
- 15. It is also known that user credentials may be available in a remote database. The wanted user credentials need to be downloaded from a remote database. While the main thread executing the local processing, because an external database is accessed over the Internet, data accessing is executed in another thread. As the remote data is downloaded in a thread, the data needs to be passed back to the main thread. The following statement ensures that the main thread is updated on the main queue. DispatchQueue._______._______ { // do something here }true or false a. All of the instructions in a System function call in a user-program are executed in kernel-mode. b. A process immediately upon creation at t=0 creates 10 threads; each of the threads intends to sleep for 2sec and then execute code for 4sec. In the mean-time the process terminates after the thread creation task that lasts 1sec. It is possible that the wall-clock (outside clock) time of the execution of a thread will be more than 40sec. c. The PCB of a process is stored in an individual process's memory in user-space.1. Problem: Write a program to create 2 subprocesses. Thread 1 writes to the text.txt file with the content random, thread 2 reads the content of the text.txt file and outputs it to the screen. Use Semaphore to ensure that only one thread can read or write the file at a time.2. Language: C3. Operating system: Linux4. Compiler: GCC What information do you need ?
- COURSE : OPERATING SYSTEMS In the Posix Thread (Portable Operating System Interface) there are various kinds of thread calls, state the 3 thread calls along with the purpose of using the thread call!A thread is a minute, individual part of something bigger. Each thread is a component of the larger process, which is another way of stating that a process may be broken down into several threads. Multithreading in a computer language is sometimes referred to as "thread-based multitasking." An explanation of multithreading's purpose is necessary.No screenshot needed, just explain the program and answer the red question to copy program /* Multi-threaded example */ #include <stdio.h> #include <stdlib.h> #include <pthread.h> #define NUM_THREADS 10 /*This data is shared by the thread(s) */ pthread_t tid[NUM_THREADS]; /*This is the thread function */ void *runner(void *param); int main(int argc, char *argv[]) { int i; pthread_attr_t attr; printf("I am the parent thread\n"); /* get the default attributes */ pthread_attr_init(&attr); /* set the scheduling algorithm to PROCESS(PCS) or SYSTEM(SCS) */ pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); /* set the scheduling policy - FIFO, RR, or OTHER */ pthread_attr_setschedpolicy(&attr, SCHED_OTHER); /* create the threads */ for (i = 0; i < NUM_THREADS; i++) pthread_create(&tid[i], &attr, runner, (void *) i); /* now join on each thread */ for (i = 0; i < NUM_THREADS; i++) pthread_join(tid[i], NULL); printf("I am the parent thread…