UDP: User Datagram Protocol is a simple ,fast, connectionless and unreliable protocol suitable for query-based communications. UDP does not guarantee ordered delivery of data.
TCP: Transmission Control Protocol is a connection oriented and reliable protocol that provides acknowledgment of data transmission and retransmits data if requested. TCP does guarantee ordered delivery of data.
HTTP / HTTPS: Hyper Text Transfer Protocol/ Secured is the set of rules followed by the data communication on world wide web. The default port is 80 and 443 for secured.
FTP: File Transfer Protocol is the set of rules used in file transferring over the internet or within a private network. The default port is 20/21.
SMTP: Simple Mail Transfer Protocol is used when sending mails from an end user to a mail system. The default port is 25.
POP3: Post Office Protocol version 3 is used when retrieving and downloading mails from the internet. The default port is 110.
IMAP: Internet Message Access Protocol is another protocol used when retrieving and downloading mails from the internet. The default port is 143.
SNMP: Simple Network Management Protocol is used to manage networks by monitoring, configuring and controlling network devices. The default port is 161.
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Networking Fundamentals
Short StoryThis book can be read by anyone, even without any knowledge about networking or IT. Describes all the basic theories of computer networks.
