K2.1 The principles of network and infrastructure design:
• resilience:
o high availability (HA) – primary and secondary configurations of systems to provide redundancy
o clustering – provides redundancy and scalability
o load balancing – directs network traffic based on load
o segmentation – network, systems, data, devices and services are split up to mitigate the potential
impact of risks
• quality of service (QoS) – used to guarantee a specific network service
• number systems – applied for subnetting and IP addressing:
o binary
o hexadecimal
o decimal
o octal
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