Using a cloud service to host DNS and DHCP servers is an example of which cloud model?

Using a cloud service to host DNS and DHCP servers is an example of which cloud model?

• A. SaaS
• B. PaaS
• C. IaaS
• D. DaaS

Answer: (C)

The main idea is who manages the software stack versus who manages the hardware and basic infrastructure. Hosting DNS and DHCP servers in the cloud means you’re renting the underlying compute, storage, and networking resources (a VM or similar) and you’re responsible for installing, configuring, and maintaining the DNS and DHCP software and the operating system. The cloud provider handles the hardware, virtualization layer, and basic cloud networking, but does not manage the DNS/DHCP services you run. That level of control and responsibility is characteristic of IaaS. In PaaS, you’d be deploying onto a managed platform and wouldn’t handle the OS or server software directly; SaaS would provide a fully managed application, not individual DNS/DHCP servers. DaaS isn’t the right fit here either.

The main idea is who manages the software stack versus who manages the hardware and basic infrastructure. Hosting DNS and DHCP servers in the cloud means you’re renting the underlying compute, storage, and networking resources (a VM or similar) and you’re responsible for installing, configuring, and maintaining the DNS and DHCP software and the operating system. The cloud provider handles the hardware, virtualization layer, and basic cloud networking, but does not manage the DNS/DHCP services you run. That level of control and responsibility is characteristic of IaaS. In PaaS, you’d be deploying onto a managed platform and wouldn’t handle the OS or server software directly; SaaS would provide a fully managed application, not individual DNS/DHCP servers. DaaS isn’t the right fit here either.