Advantages of Cloud Computing and Private vs Public Cloud Differences

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Question 1:
(a) Advantages of Cloud Computing
Cost savings
once an organization migrates to cloud services, accessing the company data becomes
easy and fast hence saving time and resources in project startups. Again, the cloud infrastructure
has currently cleared the worry about paying for what an organization has not used through pay-
as-you-go approach. Meaning the organization will only pay for what it has used (Avram, 2014).
The system of pay as you go will equally apply on the data storage service implying that an
organization gets as much space as it needs but won’t be charged for space it doesn’t use. Keenly
considered together, these two factors will result into lower costs and higher returns.
Security
The issue of cloud computing security has been among the major hang ups worrying
organizations when it comes to adopting cloud computing solutions. After all, when organization
programs and files are not kept securely on site it’s not easy to detect (Botta, Persico & Pescapé,
2016). Again, the same way an organization can access its data remotely, it’s the same way cyber
criminals can access the same data. Considering that the full time role of cloud hosts is to
monitor the security of their client’s data, this makes the technology more secure as compared to
conventional in house systems where organizations divide the effort of security provision as a
myriad of its IT concerns. Statistics have indicated that most data breaches in organizations are
facilitated internally and therefore cloud computing can be much safer to store the organization’s
sensitive information off-site (Gangwar, Date & Ramaswamy, 2015).
Flexibility

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Any business strives to achieve its goals and meet all its customer demands. However, if
the finite time the business management has is divided into other responsibilities like IT
concerns, it becomes very hard for such a business to achieve its two main agendas. Also, relying
on third party organizations to take care of the organization’s IT infrastructure creates more time
for the organization to devote towards the main aspects affecting it directly. Cloud technology
enables a business to be more flexible compared to when servers are hosted locally (Botta,
Persico & Pescapé, 2016). Lastly, because businesses keep on expanding, to get extra bandwidth
becomes easier when under cloud-based service than when under local hosting where the process
of updating the whole IT infrastructure is needed.
Disaster recovery
Ensuring business control has been a major factor to many businesses and which is
accorded the necessary attention by most of organizations (Botta, Persico & Pescapé, 2016).
Unfortunately, however much an organization tries to be fully in control of its operations there
will always be some incidences that run out of control and which can have resoundingly negative
impacts especially in today’s market trends. For instance, a small downtime in an organization
services may lead to lost productivity, brand reputation and revenue. Cloud-based services in
such scenarios provide fast data recovery for all kinds of emergencies right from natural disasters
like earthquakes to power outages (Wang, Zheng, Lou & Hou, 2015).
(b) Differences between Public Cloud and Private Cloud
Categorically, the differences between private cloud and public cloud can be grouped into
five domains (Krishnan, Bhagwat & Utpat, 2015): Tenancy, exposure to public, data center
location, cloud service management and hardware components. In regard to tenancy, private

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cloud operates in a single tenancy because the data in this cloud belongs to a single organization.
On the other hand, public cloud operates as a multi-tenancy because it deals with data from
multiple organizations in a shared environment (Ali, Khan & Vasilakos, 2015).
In terms of exposure to public exposure, the private cloud does not allow exposure
because it’s only the organization itself that can use the cloud services (Goyal, 2014). For, public
cloud; the infrastructure allows exposure of the services to all the organizations which wishes to
use it under shared environment. For private cloud, data center is located within the organization
network while for public cloud it’s located anywhere on the internet where the cloud service
provider is located (Krishnan, Bhagwat & Utpat, 2015).
In regard to cloud service management, under private cloud management of cloud
services is done by the internal team while under public cloud it’s the responsibility of the
service provider to manage and control the cloud service where organization data is stored.
Finally, in regard to hardware components of the two services, in private cloud the organization
provides the components which entail servers and other storage devices while in public cloud
that’s the responsibility of CSP (Rittinghouse & Ransome, 2016).
Question 2
(a) Considerations when Implementing Private Cloud
Although, on premise data centers have problems when it comes to resources,
management skills and monitoring, there are some instances where private cloud is more
preferable than the public cloud. This depends on the client requirements. Here are some of the
cases I would advise a client to go for private cloud services (Cooper, Nedbal & Nadkarni,
2017).
Backup and Recovery needs of the Organization