A ____ entry permits hackers to take complete control of a mail system.?

A(n) ________ is a vertical line that groups buttons or commands

A) index B) delimiter C) divider D) separator

GNS does not guarantee that all copies of entries in the naming database are up-to-date. How are clients of GNS likely to become aware that they have been given an out-of-date entry? Under what circumstances might it be harmful?

What will be an ideal response?