OSI Model

Summary and Key Concepts:

Latency: Time measured from when a frame enters a port to when it exits the port.
Ethernet is on Physical and Data Link Layer and uses CSMA/CD protocol which is a contention method. Befofe retransmission there is a delay time called backoff.
Socket = IP + Port
ASIC : Delivers software processing (MAC addresses) to switches.
DNS and DHCP uses UDP (User Datagram Protocol) or TCP (Tansfer Control Protocol)
Ping: Packet Internet Groper


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