Q1: In the DOS memory model, the HIGH Memory Area (HMA). is the _____ memory.

ANS:D - First 64k of extended

In computing, protected mode, also called protected virtual address mode, is an operational mode of x86-compatible central processing units (CPUs). It allows system software to use features such as virtual memory, paging and safe multi-tasking designed to increase an operating system's control over application software.

Address up to 16 MB of memory in protected mode. The 1 MB barrier also remained as long as the 286 was running in real mode, since DOS required real mode which uses the segment and offset registers.