System Analysis and Design
Main characteristic of "ring", in Data structure, is

Each record points to all other records
First record points only to the last record
Last record points to the first record
Many records point to one record

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System Analysis and Design
A system analyst designs a new system by

identifying sub systems and the interfaces between sub systems
propose alternatives to the current system
adopting a developed system to the present environment
developing the system as a large, single unit
None of these

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