Which of the following is an example of IaaS?

Which of the following is an example of IaaS?

• Cloud email accounts
• Software code libraries
• SLAs
• Cloud storage 

EXPLANATION 

IaaS (Infrastructure as a Service), as the name suggests, provides you the computing infrastructure, physical or (quite often) virtual machines and other resources like virtual-machine disk image library, block and file-based storage, firewalls, load balancers, IP addresses, virtual local area networks etc.

Examples: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine.