Which One Of The Following Function Checks For The Existence Of #222
Which one of the following function checks for the existence of DNS records?
This multiple choice question (MCQ) is related to the book/course
gs gs107 PHP: Hypertext Preprocessor.
It can also be found in
gs gs107 PHP File and Session Handling - PHP Networking - Quiz No.1.
Which one of the following function checks for the existence of DNS records?
checkdns()
checkdnsr()
checkdnsrr()
checkdnsa()
