Dahil wala naman ng ibang sasakyan pang himpapawid (maliban sa helicopter etc) na pwedeng naka sunod sa airplane.
Ako Hindi maalam
Both network types use the same basic protocols for communication. LANs are faster and more efficient due to size and proximity, and they have a higher rate of data-transfer. WANs typically connect multiple LANs together, so they have a much heavier workload and must cover a broader scope. In general, though, a WAN is just a much larger version of a LAN.
If by memory, you mean RAM...
The memory queue will clear the least accessed files just enough to accommodate the incoming network traffic.