The TCP/IP model (Edexcel GCSE Computer Science): Flashcards
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TCP/IP model purpose
TCP/IP model purpose
Hierarchical protocol stack for device communication over internet
Number of TCP/IP layers
Number of TCP/IP layers
Four layers
TCP/IP key principle
TCP/IP key principle
Layer independence
Application layer role
Application layer role
Provides interfaces & services for app communication
Transport layer role
Transport layer role
Ensures reliable data delivery
Transport layer protocol
Transport layer protocol
TCP (Transmission Control Protocol)
Internet layer role
Internet layer role
Handles routing of data across internet
Internet layer protocol
Internet layer protocol
IP (Internet Protocol)
What Internet layer adds
What Internet layer adds
Source & destination IP addresses
Link layer role
Link layer role
Physical transmission of data over network hardware
Data flow when sending
Data flow when sending
Down: Application → Transport → Internet → Link
What headers are in TCP/IP
What headers are in TCP/IP
Information added by each layer to help data reach destination