The principal communications protocol in the internet protocol suite that is used to route information over the Internet.

• Internet Protocol (IP)

• Transmission Control Protocol (TCP)

• User Datagram Protocol (UDP)

• Domain Name System (DNS)

An important protocol in the internet protocol suite that enables two hosts to establish a connection and exchange data.

• Internet Protocol (IP)

• Domain Name System (DNS)

• Transmission Control Protocol (TCP)

• User Datagram Protocol (UDP)

An important protocol in the internet protocol suite that is generally used when speed in transmission is more important than accuracy since the sending computer doesn't verify that the packets were correctly received.

• User Datagram Protocol (UDP)

• Domain Name System (DNS)

• Hypertext Transfer Protocol (HTTP)

• Hypertext Transfer Protocol Secure (HTTPS)

A protocol that helps internet users and network devices discover other devices using a human-readable hostname instead of numeric IP addresses.

• Transmission Control Protocol (TCP)

• User Datagram Protocol (UDP)

• Domain Name System (DNS)

• Simple Mail Transfer Protocol (SMTP)

A protocol that governs the transfer of web content between computers.

• Post Office Protocol 3 (POP3)

• Hypertext Transfer Protocol Secure (HTTPS)

• Simple Mail Transfer Protocol (SMTP)

• Hypertext Transfer Protocol (HTTP)

A protocol that combines HTTP with the Secure Sockets Layer (SSL) protocol to securely transfer web content between computers.

• Hypertext Transfer Protocol Secure (HTTPS)

• Simple Mail Transfer Protocol (SMTP)

• Post Office Protocol 3 (POP3)

• Internet Message Access Protocol (IMAP)

A protocol used to send email.

• Internet Message Access Protocol (IMAP)

• Hypertext Transfer Protocol Secure (HTTPS)

• Simple Mail Transfer Protocol (SMTP)

• Post Office Protocol 3 (POP3)

A protocol used to receive email. Email is deleted from a server after it is downloaded to a client.

• Simple Mail Transfer Protocol (SMTP)

• Post Office Protocol 3 (POP3)

• Internet Message Access Protocol (IMAP)

• Domain Name System (DNS)

A protocol used to receive email. With Email is saved on a server even after it is downloaded to a client.

• Transmission Control Protocol (TCP)

• Internet Message Access Protocol (IMAP)

• Post Office Protocol 3 (POP3)

• User Datagram Protocol (UDP)

A command that tells the server what the user wants to do. The most common methods are POST, GET, PATCH, and DELETE. These methods are used for CRUD operations which stand for Create, Read, Update, and Delete.

• HTTP Method

• Dynamic Host Configuration Protocol (DHCP)

• Subnetting

• Hypertext Transfer Protocol (HTTP)