Correct Answer : Security
Explanation : When your data goes to and is stored on systems that are no longer under your control, you run the risk of it being intercepted or misused by outsiders. Only an authorized user can access the save data.
Correct Answer : P2P
Explanation : The XMPP PubSub extension is how Apple creates a push service for MobileMe.
Correct Answer : Push-IMAP
Explanation : Push-IMAP stands for the Push extensions for Internet Message Access Protocol.
Correct Answer : XPS
Explanation : The system uses a large reference database of Wi-Fi access points and cell tower IDs, raw position data from each location source (a signal), and the company’s proprietary algorithm to locate the device.