Answer:
Multiprotocol Label Switching (MPLS): It is a routing technique in telecommunications networks that transfers data from 1 node to next node based upon shortest paths instead of long network addresses, hence it avoids rigorous findings in a routing table and speeds the flow of traffic
MPLS provides better performance,scalability,better bandwidth utilization,a better end-user experience and reduced network congestion.Hence it is useful in today's network scenario.
The nursing usually takes up to 18 months, i.e. one year and a half.
The baby dolphin may however remain with his mum for up to 3-6 years.
A, I think.....
Explanation: