4 Cloud Computing Fundamentals Free Online FlashCards

What is cloud computing?

Cloud computing provides on-demand network access to a shared pool of computing resources that can be quickly provisioned and released.

What does on-demand self-service mean in cloud computing?

On-demand self-service lets users provision computing resources when they need them, often through a web console or API.

How does a VM differ from a container?

A VM runs its own operating system on virtualized hardware. A container packages an application and its dependencies while sharing the host operating system.

What do service models describe versus deployment models?

Service models describe what the provider manages; deployment models describe who the infrastructure is for and how it is arranged.

How does provider management generally change from IaaS to SaaS?

IaaS gives customers more control over virtual machines and operating systems; the provider manages more of the application platform in PaaS and operates the application in SaaS.

What defines a community cloud?

A community cloud serves a specific group of organizations with shared concerns, such as security or compliance requirements.

How does a cloud region differ from a zone?

A region is a geographic area where a provider operates cloud infrastructure. A zone is an isolated location within a region.

Why doesn't choosing a cloud region or zone guarantee high availability?

Choosing a region or zone alone does not ensure high availability; the application must be designed to withstand failures.

What is vertical scaling?

Vertical scaling changes the resources of one machine, such as its CPU or memory.

What is the basic principle of cloud shared responsibility?

The provider manages the cloud infrastructure it operates; the customer remains responsible for assigned duties, which can include data, identities, access settings, and application configuration.

How does cloud resource pooling support multiple customers?

Resource pooling lets a provider serve multiple customers from shared infrastructure while logically separating their resources.

What is rapid elasticity?

Rapid elasticity is the ability to expand or contract cloud capacity as demand changes.