Answer:
Explanation:
Referential integrity is the state in which all values of all foreign keys are valid. Referential integrity is based on entity integrity . Entity integrity requires that each entity have a unique key.
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Answer: A) Modular decomposition
Explanation: Modular decomposition is the composition of a graphs into small modules. These modules are the subset of the whole graphs and thus the part of the graph. These modules are these very design efficient and so they are not capable of handling the exceptions .They have precise representation which has modules which cannot seem to have exception because that will disturb the structure of the graph .
Telenet into the router, authenticate and type enable once the prompt is back type ntp server 172.17.8.254 do this on all routers.
