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Editor's note: The following are questions received from listeners of "RealMoney Radio." To send Cramer a question about topics from his radio show, click here. Listen to Cramer's latest radio show by clicking here.

With over-regulation dampening big investors, negative 401k growth, geopolitical problems, uncertain energy costs, political realignment here at home, and the proliferation of private equity, how can small investors profit from volatility? -- John

Jim Cramer

: The best way to play volatility as a whole is with a brokerage firm specializing in derivatives -- a firm like

GFI Group


is a good choice. Derivatives trading volumes are directly driven by volatility in the financial markets, so in essence, the crazier things get, the more money a firm like GFI makes.

What do you think of Avaya (AV) ?-- Mark

Jim Cramer

: Voice-over-Internet-protocol (VoIP) communications is clearly a growth sector, but Avaya faces very tough competition from

Nortel Networks

( NT) and


TheStreet Recommends

(CSCO) - Get Cisco Systems, Inc. Report

and is having a tough time putting up good numbers. I would much rather be in Cisco as a communications play.

Want more Cramer? Check out Jim's rules and commandments for investing from his latest book by

clicking here


At the time of publication, Cramer had no positions in stocks mentioned.

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