Networking Fundamentals Flashcards
One-to-one transmission
Unicast
One-to-some transmission
Mutlicast
One-to-all transmission
Broadcast
PDU at the Application, Presentation, and Session layer
Data
PDU at the Transport layer
Segment (TCP) / Datagram (UDP)
PDU at the Network layer
Packet
PDU at the Data-Link layer
Frame
PDU at the Physical layer
Bit
TCP/IP Model
Application
Transport
Internet
Link
Three-way handshake to establish session
SYN-SYN/ACK-ACK
Four-way handshake to close session
FIN-ACK-FIN-ACK
TCP flag “URG”
Tell receiver to prioritize this data
TCP flag “ACK”
Acknowledge all TCP segments
TCP flag “PSH”
Tells receiver to directly send this data to the application
TCP flag “RST”
Tells receiver that the sender has abruptly ended the conversation