TCP/IP (OCR A-Level Computer Science): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
What does TCP/IP stand for?
What does TCP/IP stand for?
Transmission Control Protocol/Internet Protocol
How many layers in TCP/IP stack?
How many layers in TCP/IP stack?
Four
Application Layer function
Application Layer function
Interacts with user apps, provides network services
Transport Layer function
Transport Layer function
Establishes connections, ensures reliable data transfer
Internet Layer function
Internet Layer function
Handles logical addressing and routing
Network Access Layer function
Network Access Layer function
Physically transmits data across network
What is HTTP used for?
What is HTTP used for?
Web browsing
TCP vs UDP
TCP vs UDP
TCP: reliable/ordered; UDP: faster/less reliable
What is an IP address?
What is an IP address?
Unique numerical identifier for network device
IPv4 bit size
IPv4 bit size
32-bit
IPv6 bit size
IPv6 bit size
128-bit
What are packets?
What are packets?
Small data units with IP addresses & sequence number
What does DNS stand for?
What does DNS stand for?
Domain Name System