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What are the answers to these multiple-choice questions about networking and database concepts?
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Answer
Here are the answers to the multiple-choice questions:
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The
pingcommand is a network utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer. The correct answer is D. -
Routers operate at the Network Layer (Layer 3) of the OSI model. Their primary function is to forward data packets between different computer networks. The correct answer is A.
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A table is in Second Normal Form (2NF) if it is in First Normal Form (1NF) and all non-key attributes are fully functionally dependent on the entire primary key. This means there
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