What is the default port number of HTTP’s?
A. 70
B. 80
C. 90
D. 100
Answer: Option B
Related Questions on PHP Networking
A. Digital Network System
B. Domain Network System
C. Digital Name Systmem
D. Domain Name System
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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