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Which among the following cannot be achieved by creating a mutual database?

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Which among the following cannot be achieved by creating a mutual database?

(a) Administration of capacity

(b) Recovery of data

(c) Rapid access to data by every layer

(d) Limited resource usage

The question was posed to me in class test.

My question is based upon Next Generation Wireless Network topic in division Next Generation Wireless Network of Cognitive Radio

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Correct answer is (d) Limited resource usage

To explain: The construction of a mutual database is one of the design methodologies employed in the implementation of the cross-layer design. A mutual database is built by combining information obtained from all layers of the protocol stack. It helps to administrate resource allocation as well as help in the recovery of data particular to each layer.

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