MUMBAI, March 4 -- Accenture Plc will acquire Ziff Davis Inc.'s Connectivity division for $1.2 billion, marking one of its largest deals in recent years and underlining the management's aim to double its acquisition spend for the current fiscal.

The deal, announced Tuesday, gives the world's largest IT services firm ownership of brands including Ookla, Downdetector, Speedtest, Ekahau, and RootMetrics. These units provide solutions in fixed broadband, mobile, and Wi-Fi network design, intelligence, insights, testing, and incident detection.

Accenture is expected to pay the amount in cash, with the acquisition set to close in the coming months. By comparison, the sum represents nearly four-fifths of the $1.5 billion the company spent on 2...