Point out the wrong statement.
(a) All push technologies used in mobile applications are server-based
(b) Push email is the penultimate example of a push service
(c) In push email, the service is always connected to the client, and it sends out to the client more or less immediately any new email that arrives at the server
(d) All of the mentioned
I have been asked this question in exam.
Enquiry is from Push Services topic in chapter Mobile Cloud and Mobile Web Services of Cloud Computing