1.

Wildcard domain names start with label _______(a) @(b) *(c) &(d) #I got this question during an online interview.I would like to ask this question from DNS in portion Application Layer of Computer Network

Answer»

Correct OPTION is (b) *

Easiest explanation: A wildcard DNS record MATCHES REQUESTS to a non EXISTENT domain name. This wildcard DNS record is specified by using asterisk “*” as the starting of a domain name.



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