N10-009 - Networking Concepts - Section 1.3

Summarize cloud concepts and connectivity options, including service models, deployment models, and connectivity such as VPN, SD-WAN, and direct connect.

Summarise the cloud service models (IaaS, PaaS, SaaS) and deployment models (public, private, hybrid, community), and explain elasticity, scalability, and multitenancy. Compare connectivity options that link on-premises networks to cloud resources - site-to-site VPN, SD-WAN, and dedicated direct-connect circuits - and recognise the security and performance trade-offs of each.

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