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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

(GFIG)

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

Cisco

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

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

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