Networking Beginner

What is TCP vs UDP?

Two transport layer protocols: TCP provides reliable, ordered delivery while UDP provides fast, connectionless delivery without guarantees.

TCP (Transmission Control Protocol) establishes connections, guarantees delivery, maintains order, and handles congestion. It is used for web browsing, email, file transfer, and SSH where reliability matters.

UDP (User Datagram Protocol) is connectionless, lightweight, and fast but does not guarantee delivery or order. It is used for video streaming, gaming, DNS queries, and VoIP where speed matters more than perfect reliability.

A protocol for monitoring and managing network devices like routers, switches, servers, and printers remotely.

Multicast

A network communication method that sends data to multiple recipients simultaneously without duplicating packets for each recipient.

Reverse Proxy

A server that sits between clients and backend servers, forwarding client requests and returning server responses on their behalf.

IPv6

The latest version of the Internet Protocol with 128-bit addresses, designed to replace IPv4 and solve address exhaustion.

DNS Record Types

Different types of DNS entries that map domain names to various information like IP addresses, mail servers, and verification strings.

VLAN (Virtual LAN)

A logical grouping of network devices that creates separate broadcast domains on the same physical network infrastructure.

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