TYPES OF CLOUD
● Private cloud
● Public cloud
● Hybrid cloud
● Community cloud
Public cloud:
Public cloud are managed by third parties which provide cloud services over the internet
to public, these services are available as pay-as-you-go billing mode.
They offer solutions for minimizing IT infrastructure costs and act as a good option for handling
peak loads on the local infrastructure. They are a goto option for small enterprises, which are
able to start their businesses without large upfront investments by completely relying on public
infrastructure for their IT needs.
A fundamental characteristic of public clouds is multitenancy. A public cloud is meant to serve
multiple users, not a single customer. A user requires a virtual computing environment that is
separated, and most likely isolated, from other users.
Fig 11: Public Cloud
Private cloud:
Private clouds are distributed systems that work on a private infrastructure and providing
the users with dynamic provisioning of computing resources. Instead of a pay-as-you-go model
as in public clouds, there could be other schemes in that take into account the usage of the cloud
and proportionally billing the different departments or sections of an enterprise.
The advantages of using a private cloud are:
1. Customer information protection: In private cloud security concerns are less since customer
data and other sensitive information does not flow out of a private infrastructure.
2. Infrastructure ensuring SLAs: Private cloud provides specific operations such as
appropriate clustering, data replication, system monitoring and maintenance, and disaster
recovery, and other uptime services.
3. Compliance with standard procedures and operations: Specific procedures have to be put
in place when deploying and executing applications according to third-party compliance
standards.This is not possible in case of public cloud.
● Private cloud
● Public cloud
● Hybrid cloud
● Community cloud
Public cloud:
Public cloud are managed by third parties which provide cloud services over the internet
to public, these services are available as pay-as-you-go billing mode.
They offer solutions for minimizing IT infrastructure costs and act as a good option for handling
peak loads on the local infrastructure. They are a goto option for small enterprises, which are
able to start their businesses without large upfront investments by completely relying on public
infrastructure for their IT needs.
A fundamental characteristic of public clouds is multitenancy. A public cloud is meant to serve
multiple users, not a single customer. A user requires a virtual computing environment that is
separated, and most likely isolated, from other users.
Fig 11: Public Cloud
Private cloud:
Private clouds are distributed systems that work on a private infrastructure and providing
the users with dynamic provisioning of computing resources. Instead of a pay-as-you-go model
as in public clouds, there could be other schemes in that take into account the usage of the cloud
and proportionally billing the different departments or sections of an enterprise.
The advantages of using a private cloud are:
1. Customer information protection: In private cloud security concerns are less since customer
data and other sensitive information does not flow out of a private infrastructure.
2. Infrastructure ensuring SLAs: Private cloud provides specific operations such as
appropriate clustering, data replication, system monitoring and maintenance, and disaster
recovery, and other uptime services.
3. Compliance with standard procedures and operations: Specific procedures have to be put
in place when deploying and executing applications according to third-party compliance
standards.This is not possible in case of public cloud.
