121. Expand IDEA.
IDEA stands for International Data Encryption Algorithm.
122. What is wide-mouth frog?
Wide-mouth frog is the simplest known key distribution center (KDC) authentication protocol.
123. What is Mail Gateway?
It is a system that performs a protocol translation between different electronic mail delivery protocols.
124. What is IGP (Interior Gateway Protocol)?
It is any routing protocol used within an autonomous system.
125. What is EGP (Exterior Gateway Protocol)?
It is the protocol the routers in neighboring autonomous systems use to identify the set of networks that can be reached within or via each autonomous system.
126. What is autonomous system?
It is a collection of routers under the control of a single administrative authority and that uses a common Interior Gateway Protocol.