Which one of the following function returns the port number of a specified service?
A. getportname()
B. getservername()
C. getserverbyname()
D. getservbyname()
Answer: Option D
Solution(By Examveda Team)
Example- getservbyname(“http”,”tcp”) will return 80.This Question Belongs to PHP >> PHP Networking
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Which one of the following function checks for the existence of DNS records?
A. checkdns()
B. checkdnsr()
C. checkdnsrr()
D. checkdnsa()
A. dns_get_record()
B. dns_record()
C. dnsrr_get_record()
D. dnsrr_record()
A. getmx()
B. retrieve_mx()
C. getmxrr()
D. retrieve_mxrr()
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