Client Server & Peer to Peer (OCR A-Level Computer Science): Flashcards
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Practise the cards
14 cards from this deck
Two primary network models
Two primary network models
Client-server and peer-to-peer (P2P)
Client-server network structure
Client-server network structure
Central server(s) provide resources to client computers
Server role in client-server network
Server role in client-server network
Stores, manages, processes data & services for clients
Client role in client-server network
Client role in client-server network
Devices that request resources/services from server
Client-server benefit: management
Client-server benefit: management
Centralised management from single server
Client-server benefit: security
Client-server benefit: security
Improved security; centralised control & easier to enforce
Client-server drawback: cost
Client-server drawback: cost
Expensive server hardware/software to purchase & maintain
Client-server drawback: failure risk
Client-server drawback: failure risk
Single point of failure; server down = clients lose access
P2P network structure: device roles
P2P network structure: device roles
Each device acts as both client and server
Central server in P2P network?
Central server in P2P network?
No central server
P2P benefit: cost
P2P benefit: cost
Cost-effective; no need for expensive servers
P2P benefit: resilience
P2P benefit: resilience
No central point of failure; peers operate independently
P2P drawback: security
P2P drawback: security
Limited security; each device controls own resources
Best use for client-server networks
Best use for client-server networks
Large businesses, web hosting, email services