I think there not necessary to hold coin in local wallet, i mean with your wallet is completely synced.
Just install dan get the address 1st and ask for wd from exchanger and confirm that wd have been sent to your wallet in blockchain.
Than, you can work with your local wallet. Backup your wallet (dat) 1st cause it will save your coin if something goes wrong until your complete the sync process.
Sure!
Sync wallet is need only when you want sending your coins not to receiving it.
The best practices to receiving coins is to install a wallet in one computer which must be disconnected from any network, create new encrypted wallet.dat, backup it, and check your public address into blockchain.
When you need to send coins the best practices is make an offline transaction signing:
This approach involves having two computers sharing some parts of the same wallet. The first one must be disconnected from any network. It is the only one that holds the entire wallet and is able to sign transactions. The second computer is connected to the network and only have a watching wallet that can only create unsigned transactions. This way, you can securely issue new transactions with the following steps.
1) Create a new transaction on the online computer and save it on an USB key.
2) Sign the transaction with the offline computer.
3) Send the signed transaction with the online computer.
Because the computer that is connected to the network cannot sign transactions, it cannot be used to withdraw any funds if it is compromised from any malware/virus/keylogger and if you are own wallet.dat encrypted is safe place you also you not risk one exchange loss your coins
Best regards,
Cinblo
