Introduction to Cloud Computing - What is SAAS , PAAS, and IAAS

The video tutorial explains the three main types of cloud services: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). SaaS allows users to access applications via a browser without installation, with examples like Gmail and Office 365. PaaS provides developers with backend services to create and manage applications without handling infrastructure, using databases like Postgre or Oracle. IaaS offers virtualized infrastructure components like servers and firewalls, enabling users to provision resources without physical hardware.

What is a key characteristic of Software as a Service (SaaS)?

• It offers virtualized computing resources.

• It is accessed through a web browser.

• It requires installation on user devices.

• It provides backend services for developers.

Which of the following is an example of a SaaS application?

• PostgreSQL

• Amazon EC2

• Salesforce

• Docker

What does Platform as a Service (PaaS) primarily offer to developers?

• User interface design tools

• Backend services like databases

• Virtualized servers and firewalls

• Physical hardware for databases

Which service model allows developers to manage applications without dealing with infrastructure complexity?

• Database as a Service

• Infrastructure as a Service

• Platform as a Service

• Software as a Service

What is a primary feature of Infrastructure as a Service (IaaS)?

• It is primarily used for customer relationship management.

• It offers virtualized computing resources like servers.

• It focuses on user interface design.

• It provides software applications via the internet.