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Unisys Mock Interview

Question 2 of 24 for our Unisys Mock Interview

Unisys was updated by on March 27th, 2019. Learn more here.

Question 2 of 24

What is the differences between 'scalability' and 'elasticity' when speaking in terms of cloud hosting?

"Scalability is a characteristic of cloud computing which is used to handle the escalating workload by escalating in proportion amount of resource capacity. Using scalability, the service provider can easily and quickly add resources when the requirements are being raised by the client. On the other hand, Elasticity is a characteristic that provides for the concept of provisioning and de-provisioning a large amount of resource capacity dynamically. It is usually measured by the speed by which the resources are coming on demand and the usage of those resources. Scalability often refers to a permanent increase in resources whereas Elasticity is temporary, based on fluctuating demands or business activity."

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How to Answer: What is the differences between 'scalability' and 'elasticity' when speaking in terms of cloud hosting?

Advice and answer examples written specifically for an Unisys job interview.

  • 2. What is the differences between 'scalability' and 'elasticity' when speaking in terms of cloud hosting?

      How to Answer

      If you are asked this type of question, the interviewer is attempting to confirm that you really understand the concepts of cloud hosting. They may also be genuinely trying to clarify this information for their own benefit. You should answer the question as clearly and succinctly as possible.

      Written by William Swansen on March 26th, 2019

      1st Answer Example

      "Scalability is a characteristic of cloud computing which is used to handle the escalating workload by escalating in proportion amount of resource capacity. Using scalability, the service provider can easily and quickly add resources when the requirements are being raised by the client. On the other hand, Elasticity is a characteristic that provides for the concept of provisioning and de-provisioning a large amount of resource capacity dynamically. It is usually measured by the speed by which the resources are coming on demand and the usage of those resources. Scalability often refers to a permanent increase in resources whereas Elasticity is temporary, based on fluctuating demands or business activity."

      Written by William Swansen on March 26th, 2019

      2nd Answer Example

      "That's a great question. People often confuse the concepts of scalability and elasticity. Scalability refers to the ability to easily increase the IT resources used by the organization. This is accomplished by using technology that can be increased quickly and with no disruption in service or downtime. Another characteristic of scalability is that it is typically permanent, and based on the growth of the organizations business. On the other hand, elasticity refers to the ability to dynamically add (provision) or remove (de-provision) IT resources based on fluctuations in business cycles or customer activity. Service providers in hosted clouds accomplish this by having "standby" resources on hand which can be turned on or off as needed. These resources are typically shared by multiple clients, who are only billed when they actually use them."

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