8.Which command would mount the directory utilities from the server named CCloud on the local mount point /opt/sf   a. mount -f nfs /sf:CCloud /opt/sf b. mount -F nfs CCloud:/sf /opt/sf c. mount -F nfs CCloud:/opt/sf /sf d. mount /opt/sf CCloud:/sf

Which of these controls MapReduce job output directory file count? Pick one: a. Partitioner partitions b. Mappers c. Reducers HDFS Block: Pick one: a. It represents data physically b. It represents data logically c. The partitioner divides map intermediate output key-values into partitions to ensure that each reducer gets the same amount of key-value pairs in MapReduce.

A user typed in the command pwd and saw the output: /home/jim/sales/pending. Howcould that user navigate to the /home/jim directory?a. cd ..b. cd /jimc. cd ../..d. cd ./.

Write the command that can be used to perform the following: Back up the contents of the /var directory (which contains symbolically linked files) to the second nonrewinding SCSI tape device on the system using the tar utility. Append the file /etc/inittab to the archive created in Exercise 2a. Create a tarball called /stuff.tar.gz that contains all files in the /root/stuff directory. Use the cpio utility to back up all files in the /var directory (which contains symbolically linked files) to the first rewinding IDE tape device that has a block size of 5KB. Perform a full filesystem backup of the /var filesystem using the dump utility and record the event in the /etc/dumpdates file. Create an image of the /dev/sdb4 filesystem to the /sdb4.img file. View the contents of the archives created in Exercises 2a, 2c, 2d, and 2e. Extract the contents of the archives created in Exercises 2a and 2c to the /root directory. Extract the contents of the archives created in…

find The find command takes a pattern as a command-line argument and recur- sively searches through directories to find a filename matching that pattern. It should print a relative path starting with "./" for every file/directory that matches. For example, running ./find 1s.c from within the hw2 directory should print ./1s.c. If run from the parent directory, the output would be . /hw2/1s.c. There may be multiple matches. If we run ./find .c from within the hw2 directory, we should see: ./find.c ./1s.c ./tree.c The output does not need to be sorted. If nothing matches, it shouldn't print anything. Pattern matching should be case sensitive.