COMPUTER FUNDAMENTALS

Detailed explanation-1: -Which of the following is a CDMA standard of second generation network? Explanation: Interim Standard 95 (IS-95) is the most popular CDMA standard of second generation networks.

Detailed explanation-2: -5. Which of the following is a 2.5G CDMA standard? Explanation: IS-95B (Interim Standard 95B) is code division multiple access standard for 2.5G.

Detailed explanation-3: -Interim Standard 95 (IS-95) was the first ever CDMA-based digital cellular technology. It was developed by Qualcomm and later adopted as a standard by the Telecommunications Industry Association in TIA/EIA/IS-95 release published in 1995.

Detailed explanation-4: -Explanation: IS-95 is specified for reverse link operation in the 824-849 MHz band and 869-894 MHz for the forward link. The PCS version of IS-95 has also been designed for international use in the 1800-2000 MHz bands.

Detailed explanation-5: -Which of the following is used by IS-95? Clarification: IS-95 uses a direct sequence spread spectrum CDMA system. It allows each user within a cell to use the same radio channel, and users in adjacent cell also use the same radio channel.