1. Which is the best definition of cloud architecture? Desi...

1. Which is the best definition of cloud architecture?

Designing applications in cloud-based, shared IT infrastructure by using virtual machines and fault-tolerant data stores in the cloud

Redesigning traditional on-premises data centers to internet-accessible data centers that a vendor manages

Combining frontend and backend software and components to create highly available and scalable web services that meet the needs of an organization

Applying cloud characteristics to a solution that uses cloud services and features to meet technical and business requirements