Which of the following system calls is used to create a new process in Unix-like operating systems? (A) fork() (B) exec() (C) create() (D) spawn() (E) process()
Question
Which of the following system calls is used to create a new process in Unix-like operating systems? (A) fork() (B) exec() (C) create() (D) spawn() (E) process()
Solution
(A) fork() is the system call used to create a new process in Unix-like operating systems. This function creates a new process by duplicating the existing process. The new process, called the child, is an exact copy of the calling process, called the parent, except for a few values that get changed, such as the process ID.
Similar Questions
Which system call in Unix is responsible for creating a new process?a.none of the mentionedb.forkc.created.new
In Unix, which system call creates the new process?
estion: What is the purpose of the "fork" system call in Unix-like operating systems?A) To create a new processB) To terminate a processC) To wait f
Consider the following fragment of a program: ... int a=0; int main() { a = 1; int pid=fork(); if(pid == 0) { printf("%d\n", a); } else if(pid > 0) { printf("%d\n", a); } return 0; } When run, what output do you observe and what do you think is the reason for the observed output? You may assume that the call to fork() succeeds. Question 4 Select one: a. The parent process outputs 1, but the child process outputs 0, because the value of a is updated only in the parent process. b. Both the parent and the child processes output 1, because the child process inherits the memory state from the parent at the point where fork() is called, and the variable a has been assigned the value 1 at that point. c. The parent process outputs 0, but the child process outputs 1, because the value of a is updated only in the child process.
Which system call creates a shared memory segment in Unix-like operating systems? (A) shmdt() (B) shmget() (C) pipe() (D) shmctl() (E) shmsnd()
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.