To protect easy hacking installments that could damage how the government is working
Answer:

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The uniquely identifiable element about which data can be categorized in an entity-relationship diagram is the entity type. The entity type is the fundamental building block, which defines a collection or set of entities that have the same attributes and it is used for describing the structure of data with the Entity Data Model (EDM).
Answer:
The router will purposefully drop messages if message traffic exceeds its capacity.
Explanation:
As we know that the router and the switch are the connecting devices. The router works at the network layer and used for determining the shortest path
On the other hand the switch work is to connected many devices that are available in the network.
Therefore the correct option is second as the router also depicts when there is the purpose of the messaged drop[ed if the traffic of message exceeds than its capacity
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