contestada

If a local DNS server cannot find an IP address for a specified URL, it does this.

a. Queries the next DNS server
b. Returns an error 4xx to the client requesting the resource
c. A reverse lookup of the authoritative record
d. Performs an iterative query of the local DNS servers database

Respuesta :

abdullahfarooqi

Answer:

a. Queries the next DNS server

Explanation:

If a local DNS server cannot find an IP address for a specified URL, it queries the next DNS server.

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