Fill in the blanks:
a. is based on travelling datagrams through internetworks one hop at a time. the entire route is unknown at the beginning of the journey.
b. is group-based communication. it can be one-to-many or many-to-many distribution.
c. the most important requirement of a network is the ability to treat different data types differently.
d. process transmits telephone calls (voice) over the internet. 2
e. is the standard recommended by the itu for low bit-rate voice transmission over the internet.
f. is an unencrypted message data.