题目内容

Back to the Figure 1 IP Integration Phases in Mobile Wireless, which statement on the below is incorrect ( )?

A. The first phase of these infrastructures based on circuit-switched voice and data services.
B. The second quadrant depicts the implementation phase of 3G technologies.
C. In the third phase, voice and data are consolidated onto a packet-based infrastructure from the RAN or radio network control (RNC) outward.
D. The fourth phase includes 3G services plus the implementation of IP-based radio and mobility components to develop a true end-to-end, all-IP wireless network solution.

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Which standards of the “G” treat reliability factor as the hardest obstacle ( ) ?

A. 1G
B. 2G
C. 3G
D. 4G

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Who sets those standards for real ( ) ?

A. Seller
B. Programmer
C. ITU-R
D. Government officer

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Which one below is telling the truth ( ) ?

A. 1G A term already widely used before 2G was available.
B. Nothing new were added to the menu since 2G was appeared.
C. 3G should be capable of handling around 2 Megabits per second
D. 4G should be capable of handling around 2 Megabits per second

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If you want to connect 4G network, you have to qualify with the following requirement except ( ).

A. Own an 4G device.
B. Insert with an 4G cable.
Cover by 4G network resources.
D. A, B and C.

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