Changing the mode of a file to be -rwxr-xr-x via the chmod system call can be achieved by setting the mode to which of the following values?

In order to create a counting mutex, which mode does it need to use?

Which one of the folloing is NOT necessary for a basic CORBA system?

Choose the answer that corrects the following code. FILE * file1; : if ((file1 = open("/valid_dir/existing_file", O_RDONLY, 0666)) == ERROR) { /* /valid_dir/existing_file is guaranteed to exist */ :

A pipe has been created, and fork() and exec() calls have been completed. What steps must be taken next in order to establish communication from the parent to the child?

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

Which system call is the most memory efficient method of reading a file?

What does the command do to the process with pid 12345?

Command to list the shared libraries used by an executable?

Ignoring the setup cost for each of the System V IPC mechanisms, which one is the most efficient?

Which signal cannot be ignored by a process?