超星 - Unit 2 Text B: 2G, 3G, 4G, 4G LTE, 5G—What Are The

单选题

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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单选题

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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单选题

What is the difference between 4G and LTE ( )?

A. Speed
B. Resource area
C. Numbers of user
Device be used

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The following statements about 5G are correct except ( ).

A. 5G have not been formally clarified.
B. 5G at speeds of 1-10Gbps.
C. 5G will be used commercially in the mid of 21 centuries.
D. 5G will be faster than 4G.

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单选题

The following statements about 4G LTE are correct except ( ).

A. It's based on GSM/EDGE and UMTS/HSPA network technologies.
B. It provides peak download rates of 300 gigabits per second.
C. It provides peak upload rates of 75 megabits per second.
D. It is another version of 4G.

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