What happens to the blockchain currency when nodes gets disconnected

Question

I have a question, what happens to the ether or a transaction currency when the node gets disconnected from the public network?/

When the connection is re established how is the currency or the transaction verified and added

Answer 1

After the resync of the network, the transaction in bigger network are marked as proper the transactions in smaller network will be invalid. External systems usually are protected from problems related to network fragmentation. External system require connection to many nodes in different locations (countries). If payment isn't visible in all locations it isn't accepted at all.

Moreover some cryptocurrencies are protected from network fragmentation. The node which finds that lost connection to nodes in different location will stop accepting new transactions.