Ports, protocols, services and common traffic types

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By the end you’ll be able to

Identify common TCP and UDP port numbers and associate them with the correct protocols and services, including secure and legacy variants where relevant to Network+.
Differentiate connection-oriented and connectionless transport behavior and apply TCP versus UDP characteristics to common application traffic.
Explain the purpose of common network services such as DNS, DHCP, NTP, SNMP, SSH, HTTPS, FTP, SFTP, TFTP, SMTP, POP3, IMAP, LDAP and RDP.

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Distinguish encrypted, unencrypted, in-band and out-of-band management traffic and select the appropriate protocol for a given administrative requirement.

Apply protocol, port and service knowledge to packet captures, ACL rules, firewall rules and troubleshooting scenarios.

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