Q: Which standard is not backward compatible with 3G Cdma2000?

A IS-95B
B IS-95A
C IS-95
D GPRS

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Answer: D

Explanation:

Cdma2000 is a third-generation wireless mobile communication technology that is based on the IS-95 and IS-95A CDMA standards, as well as the 2.5G IS-95B air interface. Cdma2000 allows wireless carriers to introduce a family of new high data rate Internet access capabilities within existing systems while maintaining backward compatibility with existing IS-95, IS-95A, and IS-95B equipment. However, GPRS (General Packet Radio Service) is a 2.5G mobile communication technology and does not have backward compatibility with 3G Cdma2000. It was designed to provide packet-switched data transmission rates up to 115 kbps and is based on GSM technology.

Q: Which standard is not backward compatible with 3G Cdma2000?

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