Question: 1.What does it mean to have execution permission on a directory? 2.What is the chmod command for changing the file a.outs permissions so that the

1.What does it mean to have execution permission on a directory?

2.What is the chmod command for changing the file a.outs permissions so that the owner can read, write, and execute; the files group can read and execute; and everyone else can only execute.

3. Assuming the block size is 4096 bytes and physical disk block addresses are 32 bits, how many blocks can we address using the triple indirection pointer in the UFS pointer structure?

4. Consider a file system similar to the one used by UNIX with indexed allocation. How many disk I/O operations might be required to read the contents of a small local file, which fits within one block, at the directory /users/jae125/cs410/? Assume that none of the disk blocks is currently being cached.

5. What is the advantage of using a file-allocation table (FAT) to chain together the blocks of a file in linked allocation?

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