The document discusses various aspects of foreign exchange management including interbank deals, cover deals, trading, and funding of vostro accounts. Interbank deals refer to the purchase and sale of foreign currency between banks in the interbank market. Cover deals involve a bank purchasing or selling foreign currency to insure against exchange rate fluctuations from dealings with customers. Trading involves purchasing and selling currency in the market for potential exchange rate gains. Swap deals involve simultaneously buying and selling the same foreign currency for different maturities.