->> When a physical page frame is required but none is free, some page
->> frame must be evicted. Describe your code for choosing a frame to
->> evict.
+>> When a frame is required but none is free, some frame must be
+>> evicted. Describe your code for choosing a frame to evict.
+
+>> When a process P obtains a frame that was previously used by a
+>> process Q, how do you adjust the page table (and any other data
+>> structures) to reflect the frame Q no longer has?