Data Coms SAQ

Domain Name Service Protocol (DNS): Resolves Internet names to IP addresses.

Telnet: Provides remote access to servers and networking devices.

Bootstrap Protocol (BOOTP): Precursor to DHCP, obtaining IP address information during bootup.

Dynamic Host Control Protocol (DHCP): Assigns IP addresses, subnet masks, gateways, and DNS servers.

Hypertext Transfer Protocol (HTTP): Transfers files comprising Web pages.

File Transfer Protocol (FTP) - used for interactive file transfer between systems

Trivial File Transfer Protocol (TFTP) - used for connectionless active file transfer

Simple Mail Transfer Protocol (SMTP) - used for the transfer of mail messages and attachments

Post Office Protocol (POP)  - used by email clients to retrieve email from a remote server

Internet Message Access Protocol (IMAP) – another protocol for email retrieval

IoT and IoE

The Internet of Things: connects devices to gather and exchange data, enhancing efficiency and enabling automation across various sectors.

Internet of Everything:  connects everything, including devices, people, processes, and data, into a unified ecosystem.

Transmission Control Protocol

Makes sure your data gets where it's going reliably, but it does add more stuff to the network traffic. It's best for apps that can't afford to lose any data, like when you're browsing the web. Programmers pick TCP or other protocols based on what their apps need. TCP wraps up different kinds of internet traffic, like web browsing, email, and file transfers, so they can all travel smoothly.

User Datagram Protocol

Provides basic delivery functions without ensuring reliability, resulting in less overhead compared to TCP. It doesn't involve handshaking or validation, meaning if a message doesn't reach its destination, it's not acknowledged. It's favoured by applications that can tolerate minor data loss or require minimal delay, like online FPS gaming. UDP is ideal for VoIP and online gaming due to its low latency and lack of retransmission delay. However, it lacks congestion control, meaning it doesn't avoid network congestion. Protocols like DNS and DHCP commonly use UDP.