> For the complete documentation index, see [llms.txt](https://bryan-guner.gitbook.io/my-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bryan-guner.gitbook.io/my-docs/cheat-sheets/computer-science-concepts/networking_cheatsheet.md).

# networking\_cheatsheet

Networking

1. UDP >> UDP is a connectionless protocol
2. TCP is a connection-oriented protocol
3. SOA - Start of Authority record\
   points to the primary authority for the domain we're querying
4. NS - Name Servers

* directory for devices and the IP addresses attached to them
* translate domain names into numerical IP addresses

1. A / AAAA - record that maps directly to an IP address
2. CNAME - record that acts as an alias
3. MX - Mail Exchanger - used for e-mail

* contains internal addresses of each device connected to router
* can join different networks, a feature switches and hubs cannot do
* performs NAT (network address translation)
* NAT allows router a single IP address
* router can direct traffic to the appropriate address
* contains the MAC (media access control) address of all - connected devices
* flood - send to ALL connected devices ”
* forward - send to a particular device
* filter - drop data entirely
* no network management ,,,
* signal splitter
* duplicates data and broadcasts it to ALL connected devices

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