CC: Cloud Deployment Models and Shared Responsibility

Question 1

A small startup wants to launch a web application quickly, keeping costs low. It has no budget for hardware and is comfortable sharing infrastructure with other tenants managed by a vendor. Which deployment model fits these needs best?

Public cloud, where a vendor pools shared resources for many tenants Community cloud, where several related organizations share a common platform Hybrid cloud, where an organization blends its own hardware with vendor resources Private cloud, where infrastructure serves one organization exclusively

Correct Answer: Public cloud, where a vendor pools shared resources for many tenants

The public cloud fits best because a vendor pools shared infrastructure across many tenants, eliminating hardware costs and enabling fast, low-cost deployment for a startup comfortable with multi-tenancy.

The private cloud is wrong because dedicating infrastructure to one organization requires higher cost and often hardware investment. The community cloud assumes a group of related organizations with shared concerns, which does not match a single startup. The hybrid cloud is wrong because it blends owned hardware with vendor resources, but the startup has no budget for hardware.

Key concept tested: cloud deployment models and multi-tenant public cloud characteristics.

Question 2

In a Platform as a Service model, which combination of elements would a customer typically be assigned responsibility for managing?

Their applications and the data those applications process The operating system patches and the runtime environment The physical servers along with virtualization layers used The networking hardware and underlying storage infrastructure

Correct Answer: Their applications and the data those applications process

In a Platform as a Service model, the provider manages the underlying infrastructure, operating systems, and runtime, while the customer retains responsibility only for the applications they build or deploy and the data those applications process.

Managing physical servers and virtualization layers is incorrect because these belong to the provider. Networking hardware and storage infrastructure are also provider-managed in PaaS. Operating system patches and the runtime environment are handled by the provider in PaaS, not the customer, which distinguishes PaaS from Infrastructure as a Service.

Key concept tested: the shared responsibility model across cloud service categories.

Question 3

Which pricing approach is a defining trait of the community cloud deployment model?

Costs are metered per tenant by a large public provider Costs are split among several organizations with common goals Costs are fully covered by a single owning organization Costs are billed to each user based on individual resource consumption

Correct Answer: Costs are split among several organizations with common goals

The community cloud is shared by multiple organizations with common concerns, so the infrastructure costs are divided among those participating organizations that share similar goals, missions, or compliance requirements.

Being fully funded by a single organization describes the private cloud model. Metered, per-tenant billing by a large provider describes the public cloud. Billing each individual user based on personal resource consumption is a public pay-as-you-go characteristic, not the defining trait of a community arrangement.

Key concept: shared cost model of the community cloud deployment among organizations with common interests.

Cloud Deployment Models and Shared Responsibility