Explanation:Some polling mechanisms set the polling interval so short that the system appears to behave as if it is a push technology. 4. Which of the following services uses push email ?
A. Apple MobileMe
B. Google Gmail
C. RIM’s BlackBerry Enterprise Server
D. All of the mentioned
Answer:A
Explanation:Some polling mechanisms set the polling interval so short that the system appears to behave as if it is a push technology. 4. Which of the following services uses push email ?
A. Apple MobileMe B. Google Gmail C. RIM’s BlackBerry Enterprise Server D. All of the mentioned
Explanation:Both push and polling have pluses and minuses associated with them. 5. Point out the correct statement: