5. Suppose we launch the browser firefox with the following command - nice firefox \& the default nice faulue of the firefow process is A. 0 B. 5 - C. 10 Circle the correct response. 6. The command which kill the program firefox by name is - A. killall firefox B. kill 9 firefox - C. kill -1 firefox - D. pkill firefox Circle the correct responses. 3. Suppose the attribute of the file test1 are rw s rwrw. The decimal form of the permission attributes are - A. 4666 - B. 4766 - C. 2666 Circle the correct response. 4. Suppose the umask value is 022 . The permission attributes of a new created file is 1/4 - A.rw-r w X r-X - B.r W Xr-Xr-X - C.rw - r- r- Circle the correct response. 9. The command which searches and lists with details all ordinary files in the home directory accessed within the last 7 days with size less than 100MB is - A. find/home/\$USER -ty pe f-atime +7-size - 100M -ls - B. find -type f-atime -7 -size-100M -ls - C. find /-atime-7 -size-100M -ls 2/4 - D. find /-type d -atime 7-size 100Mls Circle the correct response. 10. The command which searches and deletes all ordinary files ending with ".bz2" or ".bz" from the home directory: - A. find. -type f -name "*.bz2" || -name "**.bz" -exec rm{}\; - B. find -type f -name "*.bz2" -name "*.bz" -exec rm{}\ - C. find /home/\$USER -type f \(-name " bz2" o -name "*.bz" \)-exec rm{}\ Circle the correct response