Item 7A. Quantitative and Qualitative Disclosures about Market Risk. We have operations both within the United States and internationally, and we are exposed to market risk in the ordinary course of our business. Interest Rate Risk Our cash, cash equivalents and marketable securities primarily consist of bank deposits and money market accounts, highly rated debt instruments of the U.S. government, its agencies, debt instruments of highly rated corporations, debt instruments issued by foreign governments, and asset-backed securities. At the end of fiscal 2020 and 2021, we had cash, cash equivalents and marketable securities of $1,299.2 million and $1,253.5 million. The carrying amount of our cash equivalents reasonably approximates fair value, due to the short maturities of these instruments. The primary objectives of our investment activities are the preservation of capital, the fulfillment of liquidity needs and the fiduciary control of cash and investments. We do not enter into investments for trading or speculative purposes. Our investments are exposed to market risk due to fluctuation in interest rates, which may affect our interest income and the fair value of our investments. We considered the historical volatility of short-term interest rates and determined that it was reasonably possible that an adverse change of 100 basis points could be experienced in the near term. A hypothetical 1.00% (100 basis points) increase in interest rates would have resulted in a decrease in the fair value of our marketable securities of approximately $10.7 million as of the end of fiscal 2021. Foreign Currency Exchange Risk Our sales contracts are primarily denominated in U.S. dollars with a proportionally small number of contracts denominated in foreign currencies. A portion of our operating expenses are incurred outside the United States and denominated in foreign currencies and are subject to fluctuations due to changes in foreign currency exchange rates, particularly changes in the British pound and Euro. Additionally, fluctuations in foreign currency exchange rates may cause us to recognize transaction gains and losses in our statement of operations. Given the impact of foreign currency exchange rates has not been material to our historical operating results, we have not entered into any derivative or hedging transactions, but we may do so in the future if our exposure to foreign currency exchange should become more significant. We considered the historical trends in currency exchange rates and determined that it was reasonably possible that adverse changes in exchange rates of 10% for all currencies could be experienced in the near term. These reasonably possible adverse changes in exchange rates of 10% were applied to total monetary assets and liabilities denominated in currencies other than U.S. dollar at the end of fiscal 2021 to compute the adverse impact these changes would have had on our loss before income taxes in the near term. These changes would have resulted in an adverse impact on loss before provision for income taxes of approximately $6.9 million at the end of fiscal 2021. 53