In a UNIX file system, the double indirect pointer includes 513 pointer blocks that can store upto 512MB 1. How many bits does this file system use for block pointers? 2. The inode of this file system contains 52 bytes of address information for direct entries, and one single, double, and triple indirect entry each, what can the maximum file size of a file be? 3. How many blocks used to allocate a 60KB file along with an inode 4. How many blocks used to allocate a 128MB file along with an inode