QUESTION 12 Under /proc, we see a subdirectory called 5813 which has files cmdline, environ, fd, io, mounts, cwd, exe and root. Which of the following files would store information about open files? cwd envion O fd Oio mounts QUESTION 13 What does the command tar -itaz /hoe/somedi do? It outputs the contents of the file somedir.tar to the directory home/somedir It creates a new archive called somedir tar of the directory homel/somedir It appends the contents of /home/somedir to the archive somedir.tan It compares the contents of somedir.tar to the contents of home/somedir to indicate whether content in the directory is newer O It updates somedir.tar with any newer content from /home/somedir QUESTION 14 Which option would you use with tar to add to an already existing archive? -add O -append -U QUESTION 15 The reason that both /usr and /usr/local exist is more historic than practical O True False