Question

the secondary name of a file is called_______​

Answer 1

Answer:

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Explanation: A file extension (or simply "extension") is the suffix at the end of a filename that indicates what type of file it is.

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Answer 2

Answer:

Secondary Name Server is a name server that downloads its Domain Name System (DNS) database of resource records from a master name server. The master name server can be either a primary name server or another secondary name server.