upbeat comments

Cisco Systems CEO John Chambers on Wednesday reported strong revenue and profit — as well as thousands of new hires around the globe, including hundreds in San Jose — but his upbeat comments came amid “mixed signals” from customers nervous about the wobbly global economy. On a day markets plunged on worries about a stalling economic recovery, Cisco, the San Jose maker of the plumbing for the Internet, reported a $1.9 billion profit for its fourth quarter, a 79 percent increase from the same period a year earlier. Earnings were 33 cents a share, or 43 cents a share excluding

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