Key TakeawaysCisco System shares moved lower in extended-hours trading Wednesday after the company provided a cautious fiscal third-quarter and full-year outlook amid uncertainty surrounding the macro environment.Cisco becomes the latest tech company to announce layoffs, saying it plans to reduce its global workforce by 5%.An earnings-driven breakdown below a long-term uptrend line could act as a catalyst for another move lower. Cisco Systems, Inc. Source: TradingView.com.Shares in computer networking gi ...