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-> Provides a plan – “Pay as you go”
-> Cost is directly proportional to consumption.
-> There are no hidden costs such as infrastructure costs.
-> This creates a chance to pay for additional resources when they are needed.
-> Stop paying for resources we no longer need.
-> Allows to predict costs.
-> Examples are mostly public cloud platforms such as Gmail, Outlook and so on.
-> We are able to reduce or increase services and resources based on load demand (such as xGB RAM, yGB hard disk, CPU… .. and so on).
-> This can be done at any time.
-> There are two types of vertical and horizontal scaling.
green colourical- It is possible to increase server power by adding resources vertically. Examples are adding more memory, GPU and so on.
Horizontal – Servers are added here.
-> This can be done by humans or by machines.
-> The system adds or removes resources when demand increases or decreases.
-> it depends
- Website traffic
- Maximum traffic time
- Bounce rate
- Demographics like age, gender etc.
- geographical situation
More current in nature
-> Cloud ensures that the latest and best resources are used by the server.
-> Hardware is updated by cloud-providers. They also update the hardware.
-> New updates are made available without changing the currently used resources which reduces the cost.
-> Example: Suppose there are ten disks. If one fails, it is replaced without replacing the other disk.
-> The user can focus on the deployment and creation of applications and not on the background feature.
-> This feature reduces the burden of maintaining the software.
-> No need to worry about hardware setup and upgrade.
-> When the business aspect is worked out, we need to ensure that our data is available at all times to use servers and resources. Cloud provides this facility.
-> It provides backup of data. Typically, data is stored in more than one data center at the same or different geographic locations, which does not facilitate data loss.
-> It provides disaster recovery.
fault tolerance: One in ten disks replaced by the cloud-provider without affecting the user.
-> Most major cloud providers such as Microsoft, Google, IBM, Amazon, and so on are found in a wide range of geographic locations. In most locations, there is more than one data center for data backup.
-> Security of data centers such as can enter the premises and operate the server etc.physical security.
->Digitally secure – Those who are able to access resources and use data.
-> These are mostly for private and hybrid clouds.
-> There are several sets of compliance policies such as HIPAA that provide data security and privacy.