John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux- based network. John is working as a root user on the Linux operating system. He has recently backed up his…

John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux- based network. John is working as a root user on the Linux operating system. He has recently backed up his entire Linux hard drive into the my_backup.tgz file. The size of the my_backup.tgz file is 800MB. Now, he wants to break this file into two files in which the size of the first file named my_backup.tgz.aa should be 600MB and that of the second file named my_backup.tgz.ab should be 200MB. Which of the following commands will John use to accomplish his task?