Which of the following is a reason to migrate an application to the cloud?

Which of the following is a reason to migrate an application to the cloud?

• It will always be cheaper than hosting it in-house
• Data encryption
• Elasticity
• High availability 

EXPLANATION

In cloud computing, elasticity is defined as "the degree to which a system is able to adapt to workload changes by provisioning and de-provisioning resources in an autonomic manner, such that at each point in time the available resources match the current demand as closely as possible
 
There are many problems that moving to the cloud can solve. Here are some typical scenarios that will benefit from cloud migration.

• • Your application is experiencing increased traffic and it’s becoming difficult to scale resources on the fly to meet the increasing demand.
  • You need to reduce operational costs while increasing the effectiveness of IT processes.
  • Your clients require fast application implementation and deployment and thus want to focus more on development while reducing infrastructure overhead.
  • Your clients want to expand their business geographically, but you suspect that setting up a multi-region infrastructure – with all the associated maintenance, time, human, and error control effort – is going to be a challenge.
  • It’s becoming more difficult and expensive to keep up with your growing storage needs.
  • You’d like to build a widely distributed development team. Cloud computing environments allow remotely located employees to access applications and work via the Internet.
  • You need to establish a disaster recovery system but setting it up for an entire data center could double the cost. It would also require a complex disaster recovery plan. Cloud disaster recovery systems can be implemented much more quickly and give you much better control over your resources.
  • Tracking and upgrading underlying server software is a time consuming, yet an essential process that requires periodic and sometimes immediate upgrades. In some cases, a cloud provider will take care of this automatically. Some cloud computing models similarly handle many administration tasks such as database backup, software upgrades, and periodic maintenance.
  • Capex to Opex: Cloud computing shifts IT expenditure to a pay-as-you-go model, which is an attractive benefit, especially for startups.