Push Services
Posted by Superadmin on March 27 2016 06:56:05
1. Which of the following allows an IMAP server to automatically keep a connection alive ?
a) P-IMAP
b) C-IMAP
c) I-IMAP
d) None of the mentioned
Answer()
2. Point out the wrong statement:
a) All push technologies used in mobile applications are server-based
b) Push e-mail is the penultimate example of a push service
c) In push e-mail, the service is always connected to the client, and it sends out to the client more or less immediately any new e-mail that
arrives at the server
d) All of the mentioned
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3. Which of the following IMAP command is used to update and amounts to a heartbeat signal and response ?
a) EXIT
b) IDLE
c) CLOSE
d) All of the mentioned
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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
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5. Point out the correct statement:
a) The well-known e-mail protocol POP3 is a polling protocol
b) IMAP cannot support both push and polling
C) Push-IMAP is a push technology, as is the SMTP protocol
d) All of the mentioned
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6. Which of the following is incorrect step in pushing blackberry service ?
a) Content provider sends a push request to the server
b) BlackBerry servers send a response back to the content provider
c) BlackBerry servers forward the acknowledgement to the content provider
d) All of the mentioned
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7. Which of the following uses a set of e-mail extensions to provide access to mobile devices ?
a) Black Profile
b) Lemonade Profile
c) B2B Profile
d) None of the mentioned
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8. The Lemonade Profile is a specification of the _____ as RFC 5550.
a) IETF
b) IETE
c) IETC
d) All of the mentioned
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9. How many number of characters can be sent in a single message through SMS ?
a) 140
b) 200
c) 240
d) None of the mentioned
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10. Which of the following allows longer messages to be sent using multiple packets containing a User Data Header that contains the segment number ?
a) Long SMS
b) Large SMS
c) Big SMS
d) All of the mentioned
Answer()
Answers
1. a
Explanation:P-IMAP contains a feature that sends rich e-mail in a manner similar to SMTP.
2. a
Explanation:Not all push technologies used in mobile applications are server-based.
3. b
Explanation:Some polling mechanisms set the polling interval so short that the system appears to behave as if it is a push technology.
4. b
Explanation:Some polling mechanisms set the polling interval so short that the system appears to behave as if it is a push technology.
5. b
Explanation:Some polling mechanisms set the polling interval so short that the system appears to behave as if it is a push technology.
6. d
Explanation:The Push Service transfers up to 8KB messages directly.
7. a
Explanation:The Lemonade Profile is an alternative mechanism for push e-mail.
8. a
Explanation:A Push-IMAP specification has been developed but not standardized.
9. b
Explanation:The Short Message Service (SMS) is a text-notification service that has evolved into a primary communications protocol for near-real-time message passing.
10. a
Explanation:The limit for this multipart or segmented SMS is 153 characters for 7-bit, 134 for 8-bit, and 67 for 16-bit encoding.