?In _____, two programmers work on the same task on the same computer; one drives while the other navigates.

The __________ provides a virtual memory capability that allocates page frames in main memory to processes and also allocates page frames to disk block buffers.

Fill in the blank(s) with the appropriate word(s).

Digital signatures are used for ________ authentication.

message-by-message Both initial and message-by-message Neither initial nor message-by-message