Answer:
(a). IP routing.
(b). Multicasting.
(c). converged.
(d). VoIP.
(e). VoIP.
(f). Plain text.
Explanation:
Ip routing is the method of transfer data from the one destination to another destination and it also send data from host to host across the network.
Multicasting is the type of distribution from one host to many hosts and also many hosts to many of them, it is used for the Internet Protocol Routing protocol in which the data is distributed to many receivers.
VoIP is that type of routing through which folks can use the internet services as the transmission mode.