220-802 · Question #426
Which of the following is required in order to receive push email notifications on a mobile device?
The correct answer is B. POP3. Note: The provided answer of POP3 is technically incorrect and likely an error in the exam key. POP3 is a pull protocol-the client must poll the server at intervals to retrieve mail and does not support push notifications. Push email on mobile devices is delivered via…
Question
Which of the following is required in order to receive push email notifications on a mobile device?
Options
- AIMAP
- BPOP3
- CActiveSync
- DSMTP
How the community answered
(62 responses)- A3% (2)
- B87% (54)
- C2% (1)
- D8% (5)
Explanation
Note: The provided answer of POP3 is technically incorrect and likely an error in the exam key. POP3 is a pull protocol-the client must poll the server at intervals to retrieve mail and does not support push notifications. Push email on mobile devices is delivered via ActiveSync (Microsoft Exchange ActiveSync), which maintains a persistent connection so the server pushes new messages instantly to the device. IMAP with the IDLE extension also supports server-initiated notification. For CompTIA A+ exam purposes, ActiveSync (C) is the standard correct answer for push email on mobile devices.
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