Please enable JavaScript to use CodeHS

OH CDR: 4.6.2

CodeHS Lessons

Identify the advantages of protocols (e.g., Domain Name System [DNS], File Transfer Protocol [FTP], Hypertext Transfer Protocol [HTTP], Telecommunications Network [Telnet], Remote Desktop Protocol [RDP]], Secure Shell [SSH] ) and associated port numbers.

13.4 Domain Name System (DNS)
24.6 Domain Name System (DNS)
9.6 Domain Name System (DNS)
9.6 Domain Name System (DNS)
10.6 Domain Name System (DNS)
5.4 Domain Name System (DNS)
2.6 Domain Name System (DNS)
7.6 Domain Name System (DNS)
10.6 Domain Name System (DNS)