The OSI model is a model that describes all the functions and communications of a network
๐ฃ๐ต๐๐๐ถ๐ฐ๐ฎ๐น ๐น๐ฎ๐๐ฒ๐ฟ
Involves physical cabling
Ethernet cord
Bits and Binary 101010
Fiber optic
Copper
๐๐ฎ๐๐ฎ ๐น๐ถ๐ป๐ธ ๐น๐ฎ๐๐ฒ๐ฟ
Switches
Frames
Logical Link Control
๐ก๐ฒ๐๐๐ผ๐ฟ๐ธ ๐๐ฎ๐๐ฒ๐ฟ
Routers
IPV4
IPV6
ICMP
Trace route
Ping command
๐ง๐ฟ๐ฎ๐ป๐๐ฝ๐ผ๐ฟ๐ ๐๐ฎ๐๐ฒ๐ฟ
TCP/IP
3-way handshake (syn, syn ack, ack)
Segments
UDP
๐ฆ๐ฒ๐๐๐ถ๐ผ๐ป ๐๐ฎ๐๐ฒ๐ฟ
Connection and transfer of info b/w server + client are consistent
NETBIOS
RTP
๐ฃ๐ฟ๐ฒ๐๐ฒ๐ป๐๐ฎ๐๐ถ๐ผ๐ป ๐๐ฎ๐๐ฒ๐ฟ
Encryption
TLS
Scripting languages (Html, Php, Xml, Javascript)
Gifs
ASCII
๐๐ฝ๐ฝ๐น๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ฎ๐๐ฒ๐ฟ
Email APPS
DNS
WEB Browsing
FTP
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