1.6 Explain the function of common networking protocols.

1.6 Explain the function of common networking protocols.
 * TCP
 * FTP
 * UDP
 * TCP/IP suite
 * DHCP
 * TFTP
 * DNS
 * HTTPS
 * HTTP
 * ARP
 * SIP (VoIP)
 * RTP (VoIP)
 * SSH
 * POP3
 * NTP
 * IMAP4
 * Telnet
 * SMTP
 * SNMP2/3
 * ICMP
 * IGMP
 * TLS