Network protocols (Edexcel GCSE Computer Science): Flashcards
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Practise the cards
12 cards from this deck
What are network protocols?
What are network protocols?
Rules that control how devices communicate and share data
Three purposes of protocols
Three purposes of protocols
Data formatting, addressing/routing, network navigation
What is TCP/IP?
What is TCP/IP?
Most important collection of protocols for the internet
Application layer (TCP/IP)
Application layer (TCP/IP)
Top layer users interact with directly
FTP purpose
FTP purpose
Transfers files between computers across a network
HTTP purpose
HTTP purpose
Foundation of web browsing; manages browser-server communication
How HTTPS differs from HTTP
How HTTPS differs from HTTP
Adds encryption for security
HTTPS security indicator in browser
HTTPS security indicator in browser
Padlock symbol in address bar
SMTP purpose
SMTP purpose
Sends email messages from client to server
POP characteristic
POP characteristic
Downloads emails and deletes them from server
IMAP characteristic
IMAP characteristic
Keeps emails on server for multi-device access
Key difference: POP vs IMAP
Key difference: POP vs IMAP
POP removes from server; IMAP keeps emails on server