Consider a UNIX file system that uses a 128 Bytes data struc…

Consider a UNIX file system that uses a 128 Bytes data structure, which being referred to as inode, to abstract a file object. Suppose the followings; Each disk data block size is 4KB. Each inode has 10 direct pointers and each direct pointer locates 4KB disk data block, and Each inode has additional 4 single-indirect pointers,  With this inode data structure for a file object, what is the maximum number of 4KB disk blocks for the file?

In demand paging (virtual memory), when free physical frame…

In demand paging (virtual memory), when free physical frame number is low, the kernel will select some victim pages to be replaced. For the following page reference sequence, select the number of page faults when the LRU page replacement algorithm is used, assuming there are three physical frames available.  9, 2, 3, 6, 3, 2, 9, 2