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Network+ | 11. Cloud & Datacenter Cheat Sheet (DRAFT) by

CompTIA Network+ certification course sum up. Oriented for cybersecurity later courses.

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Devices

Virtual Servers
- multiple VS into a single physical machine
 
- multiple NICs (more bandwi­dth), lower cost
Hypervisor
software enabling virtua­liz­ation, emulates physical HW. Type1 (native on Hyperv­isor) or Type2 (hosted on OS)
ex:
VMWare, Hyper-V, Virtual Box
Storage solutions
- NAS
Disk storage over TCP/IP
- SAN
LAN designed for data transfer (FC, FCoE, iSCSI)
- Infiniband
very high perfor­mance storage on direct connection
V. Firewalls, Routers & Switches
V. Desktops
use from web interface on any device
SDN
Software define network
 
allows admini­str­ation & config­uration of V.NW via software

Voice over IP (VoIP)

Purpose
Digitizes voice traffic into data
SIP
Session Init. Protocole
 
to setup, open, maintain, tear down a session
PBX
telephone switch multi-­lines managing waitings, transfers, confer­enc­e-c­alls, messages, IDs, ...