5. How many pages are in the virtual address space? (A)(B) (C) (D)(E)

4.What statement is false about Virtual File System (VFS) in Linux kernel? (A) VFS provides the filesystem interface to kernel space programs. (B) VFS provides an abstraction within the kemel to allow different filesystem implementations to coexist. (C) VFS serves as the filesystem interface to user space programs. (D) VFS need some directory entry cache in memory for performance.