Chapter 16
Names and Time
This chapter covers the following exam topics:
1. Standards and Concepts
1.5. Describe common network applications and protocols.
TCP vs. UDP (connection-oriented vs. connectionless), FTP, SFTP, TFTP, HTTP, HTTPS, DHCP, DNS, ICMP, NTP
You could type in a service’s IP address to reach a website or SSH to a server if you know it. Most users type in a domain name containing short words and dots instead. Networks do not know how to route packets to names. Networks only know how to route packets to IP addresses.
The Domain Name System (DNS) translates names users identify services with to the IP addresses networks know how to use to carry packets.
This chapter begins with the structure of a domain name and how domain ...
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