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There are three architecture models in software development: 1 Tier, 2 Tier, 3 Tier, and n - Tier. Which tier performs retrieval of information requested

There are three architecture models in software development: 1 Tier, 2 Tier, 3 Tier, and n-Tier. Which tier performs retrieval of information requested by the user? Group of answer choices Tier 1 none of the above, the operating system performs this function Tier 2 Tier 3

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