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Chapter 2 (OSI (Layer 3 Network (packets, router), Layer 1 physical…
Chapter 2
OSI
Layer 3 Network
packets
router
Layer 2 data link
NIC
MAC address
OUI
Last six digits of the MAC address is the device ID
FCS
CRC
broadcast address
Layer 1 physical
unshieled twisted pair
Fiber optic wire
Layer 4 transport
Assembly
disassembly
Layer 5 session
session tracking/ naming
Layer 6 presentation
conversion
Layer 7 application
API