Foreign exchange exposure can occur due to unanticipated currency fluctuations. There are three types of foreign exchange exposure: 1) Translation exposure emerges when consolidating financial statements across currencies. It does not affect cash flow. 2) Transaction exposure affects current cash flows from imports/exports and foreign loans/investments. 3) Real operating exposure impacts future cash flows depending on factors like exchange rates, inflation rates, import/export levels, and demand elasticity. Measuring real operating exposure involves estimating cash flows under different currency scenarios and discounting to present value.