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Match the following $:$ 

$\begin{array}{clcl}  &  \textbf{List – I} && \textbf{List – II} \\  \text{a.} & \text{Call Control protocol}  &\text{i.} &  \text{Interface between Base Transceiver Station} \\ &&&\text{ (BTS) and Base Station Controller (BSC)} \\ \text{b.} & \text{A-bis} & \text{ii.} & \text{Spread spectrum} \\  \text{c.}& \text{BSMAP} & \text{iii.} & \text{Connection management} \\  \text{d.} & \text{CDMA} & \text{iv.} & \text{Works between Mobile Switching Centre}\\ &&& \text{( MSC) and Base Station Subsystem (BSS) } \\   \end{array}$

$\textbf{Codes :}$

  1. $\text{a-iii, b-iv, c-i, d-ii}$
  2. $\text{a-iii, b-i, c-iv, d-ii}$
  3. $\text{a-i, b-ii, c-iii, d-iv }$
  4. $\text{a-iv, b-iii, c-ii, d-i}$
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1) CDMA (code division multiple access is spread spectrum technology) is based on Spread spectrum       Technology, wideldy also popular as 3G network with network users

2) A-bis is an interface between (Base Station) and BSS. A-bis interface is network-operator specific    implementation

so answer is (B)

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Ans is B

Call control  is a process that is used in telecommunications networks to monitor and maintain connections once they have been established. so Call control protocol related to connection mgt

The BIS in ABIS stands for BSC To BTS Interoperability Specification.The interface between BSC & BTS is called as 'Abis interface'.

The Base Station Management Application Part (BSMAP) supports all Radio Resource Management and Facility Management procedures between the MSC and the BSS, or to a cell(s) within the BSS

Code-Division Multiple Access, CDMA is a digital cellular technology that uses spread-spectrum techniques

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