Wall Street ends sharply higher as Big Tech roars back; Nasdaq up 1.2%

Facebook bounces as services resume following outage; tech and financials among top advancers

Wall Street ended sharply higher on Tuesday, as Microsoft and Apple spearheaded a strong rebound in growth stocks and investors awaited monthly payrolls data later this week that could influence the U.S. Federal Reserve's decision on when to scale back monetary stimulus.

Apple, Microsoft, Amazon and Alphabet, Wall Street's most valuable companies, each rose more than 1% following a selloff in growth stocks the day before.

Facebook Inc rebounded 2.1% a day after taking a beating when its app and its photo-sharing platform Instagram went offline for hours.

Nine of the 11 major S&P 500 sector indexes rose, with financials,