Which of the following could the fork() command return to the child process?

In UNIX, a program requires higher privileges in order to do which of the following?

What does the following function return? Class retVal = [self class]; if ([retVal class] != [NSObject class]) { while ([retVal superclass] != [NSObject class]) retVal = [retVal superclass]; } return retVal;

Thread joining synchronizes threads by doing which of the following?

Which of the following can be called to remove zombie processes?

When there are more fork() calls than wait() calls, which of the following is created?

On Linux, the pthread_create interface does not use the fork system call to create threads.

If a process executes the following C code on a Linux system, what is the outcome?

What does the open system call return upon success?

Which sequence creates a socket based connection for communication?

A C program 'domath.c' utilizes the math library. Which command correctly creates the corresponding executable 'domath'?