M0DU13-4-N37W04K1N6

>>>THEORY<<<
4.a- Briefly explain all the network topologies detailed in the documentation provided (their use, how they are connected, pros and cons). 
4.b- Choose the one you think is the safest of all and explain why you think it is the safest (according to what you read).
4.c- Explain in a few words what LAN, WAN and MAN are.
Help - Network topology - https://unac.edu.pe/images/inventario/documentos/manuales/topologia-e-infraestructura_guia_v02.pdf

4.d- What is Nmap? what are its uses? Investigate and briefly explain what IPv4 is and the difference with IPv6, what is a port, what is a service that runs on a port and explain the 5 most important services that exist and usually run on ports.
4.e- What is the "3-step negotiation" of a connection? Explain it briefly in your own words.
4.f- Describe what is a DHCP server, a VPN, a DATABASE, an APP, a POP3, and a WEB.

Help:
*Nmap practical video:
https://www.youtube.com/watch?v=4Zn6qgqxmWY
*Installation Nmap: https://www.youtube.com/watch?v=P4NFIWuyWMM 
*Tutorials nmap:
*https://www.google.com/search?q=tutorial+nmap&client=firefox-b-e&source=lnms&tbm=vid&sa=X&ved=2ahUKEwjzt4Xx0sjvAhVpH7kGHYasDlcQ_AUoAXoECAEQAw&biw=1366&bih=616
*https://www.youtube.com/watch?v=-AivhQL_82E

>>>PRACTICE<<<
*What is Networking? - https://tryhackme.com/room/whatisnetworking
*Introductory Networking - https://tryhackme.com/room/introtonetworking
*Networking- https://tryhackme.com/room/bpnetworking
*Intro to LAN - https://tryhackme.com/room/introtolan
*Nmap Live Host Discovery - https://tryhackme.com/room/nmap01
*Nmap - https://tryhackme.com/room/furthernmap