What minimum permission for the current directory do you need to be in the directory as well as to list its contents?

The opendir() function opens a directory stream corresponding to the directory name, and returns a pointer to the directory stream. The stream is positioned at the first entry in the directory. Why does the openir() function not fetch fd as return value even though it is a system call?

The system wide open-file table is used to maintain information about files that are currently open. Should the operating system maintain a separate table for each user or just maintain one table that contains references to files that are being accessed by all users at the current time? If two different programs or users are accessing the same file, should there be separate entries in the open file table?

A file of size 12,500 bytes is to be stored on a hard disk drive where the sector size is 512 bytes, and a cluster consists of 8 sectors. How much slack space is there once the file has been saved?  Enter a whole number of bytes in the box.

what is Copy to Output Directory property ?

If you delete a file by accident and want to get it back, where will you go?

What is the function of a file containing primarily permanent information?

What exactly are sequence access files and where can I get them?

what is Update read ?

Write operations that can be performed on a directory.