Medical Consultancy: Infrastructure and Networking Solution Report

This report analyzes the infrastructure needs of a medical consultancy aiming to expand its operations. It begins with an overview of the scenario, setting the stage for a comparison between on-premise and cloud computing models. The report delves into the characteristics, benefits, and drawbacks of both, including hardware, software, and service requirements for on-premise solutions and the different deployment models for cloud computing. A private cloud deployment is suggested, along with justification, service model recommendations, and security implications. The report also details a proposed networking solution, including services, topology, equipment, and a discussion of IPv4 private networks and subnetting, with a Cisco Packet Tracer model screenshot. The report concludes by summarizing the key findings and recommendations for the medical consultancy's infrastructure.

Running head: MEDICAL CONSULTANCY
Remote medical consultancies
Name of the Student
Name of the University
Author’s Note

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Table of Contents
1. Introduction..................................................................................................................................3
1.1 Overview of the scenario.......................................................................................................3
1.2 Explanation of what is covered in this report........................................................................3
1.3 Assumptions made.................................................................................................................4
2. Infrastructure models...................................................................................................................4
2.1 Compare and contrast between on prem and cloud...............................................................4
2.2 Explanation of On-Prem........................................................................................................5
2.3 Discussion about the characteristics of On-Prem including benefits and drawbacks...........5
2.4 Discuss hardware, software and services needed on On-Prem solutions..............................6
2.5 Explanation of Cloud computing...........................................................................................7
2.6 Characteristics of Cloud computing......................................................................................7
2.7 Benefits and drawbacks of Cloud computing........................................................................8
2.8 Cloud deployment models.....................................................................................................9
3. Option selected for the Medical consultancy.............................................................................10
3.1 Justification for suggested deployment and service model and security implications........10
4. Networking solution..................................................................................................................14
4.1 Services required for the office............................................................................................14
4.2 Networking topology...........................................................................................................15
4.3 Networking equipment needed for the suggested solution..................................................15

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4.4 Explanation of each component...........................................................................................15
4.5 Justify and discuss Class of IPV4 private network..............................................................16
4.6 Explain subnetting and its significance...............................................................................16
4.7 Explanation of the subnetting strategy that will be used.....................................................17
4.8 Formula for subnet mast selected........................................................................................17
4.9 Screenshot of Cisco packet tracer model.............................................................................19
5. Conclusion.................................................................................................................................19
References......................................................................................................................................22

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1. Introduction
1.1 Overview of the scenario
The paper mainly reflects on a Medical consultancy which aims to expand its operations.
It is found that a very much smaller site in England has been generally secured for overseeing the
business-related interests in south part of England. The main office of the organization is in
Manchester which will be helpful in providing continuous support operations in the northern part
of England. As an infrastructural architect, the main role is to properly present the technology
proposal to the chief information officer. Furthermore, it is identified that the business
procedures is very much digitally supported and thus there is very much high availability of
operational performance which is considered to be important for the operations of the firm.
Additionally, there are around 30 consulting executives who will staff the new site within
London but there is no technological infrastructure which will be procured.
1.2 Explanation of what is covered in this report
The paper reflects on the infrastructure model by providing proper comparison between
On-Prem and Cloud. The characteristics of On-prem as well as Cloud are elaborated by
reflecting the drawbacks and benefits. The paper also showcases the significance of Cloud
deployment models as well as cloud service models. In addition to this, the paper proposed
proper option for the Medical consultancy which is dependent on the scenario by suggesting the
deployment and service models including different types of security implications. Furthermore,
the paper discusses networking topology by explaining the equipment that will be needed.
Additionally, proper discussion about IPv4 private network as well as subnetting is provided in
this paper. A clear screenshot of Cisco Packet Tracer model is added.

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1.3 Assumptions made
 Proper security: Cloud security will be provided for technology-based protection for
avoiding data leakage, data left as well as data loss.
 Centralization of data centres: It is assumed that the data centres of the organization
will be centralized to a single location.
 Less expensive: As per assumption, Cloud based solution will be less expensive as
compared to On-Prem computing.
2. Infrastructure models
2.1 Compare and contrast between on prem and cloud
Criteria On-Prem Cloud
Cost It is found that with on-
premise solutions, the initial
investment is quite large as
well as riskier (Kalinski
2015).
Costs are generally
considered cheaper up-front.
Security Security is mainly dependent
on the hands of the
organization.
Security is in the hands of
the vendor in spite of the
organization (Rittinghouse
and Ransome 2017).
Customization Customization is high as the
organization generally control
the solution (Lee et al. 2015).
It is found that there is very
much less customization as
well as flexibility from the

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vendor.
Implementation The organization generally
puts much control over the
implementation.
Cloud solution mainly take
less time for implementing an
organization due to lack of
proper customization.
2.2 Explanation of On-Prem
On premise is defined as the technology which is mainly located in the physical confines
of an enterprise as opposed to running remotely on the various hosted servers or within the cloud
(Kranz, Hanelt and Kolbe 2016). By installing as well as running the software on the hardware
that is mainly located in the premise of the organization then the internet technology staffs has
proper physical access to the data and helps in controlling the configuration.
2.3 Discussion about the characteristics of On-Prem including benefits and drawbacks
Benefits of On-Prem
 On-premise systems can be modified quite easily. It is found that the ability to properly
customize the various needs as well as requirements are considered paramount for many
organizations (Hasheela 2015).
 On -premise software can be able to put proper control on the hands of the organization
for providing security to the data and therefore it is considered important for the business
for successfully safeguarding important and sensitive information.

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Drawbacks of On-Prem
 Mobile accessibility can generally create issue for the on-premise deployment. These
further needs proper third-party client for successfully communicating between a mobile
device as well as on-premise software.
 The implementation process of On-Prem can take a longer period of time which is
considered as a major disadvantage (Ramkhelawan, Cadersaib and Gobin 2015).
2.4 Discuss hardware, software and services needed on On-Prem solutions
Hardware
 Processor = Minimum dual-core
 /tmp folder needs at least 40GB free space
 RAM = Minimum 8GB RAM
 Hard Disk = Minimum 60GB free space, Recommend 100GB free space
Software
 Docker CE or Docker EE that is needed to be installed in the machine
 Minimal Docker version required is: 1.17.x
Services
 SSL Certificate Requirements
 Bandwidth= 50 kilobytes per second (KBps) per user
2.5 Explanation of Cloud computing
According to Rittinghouse and Ransome (2017), Cloud computing is defined as a type of
computing which mainly relies on the shared computing resources rather than having a local

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servers or different types of personal devices for handling various applications. Cloud computing
generally means proper storing as well as accessing of programs and data over the internet
instead of on the hard drive of the computer (Ali, Khan and Vasilakos 2015). Cloud computing
can either be public or it can be private. It is found that public cloud-based services are helpful in
providing different services over the internet whereas the private cloud is helpful in providing
services to a certain group of people and these services are generally a system of different
networks that are helpful in supplying hosted services. Furthermore, there is also a hybrid option
that helps in combining both the private as well as public services.
2.6 Characteristics of Cloud computing
 On demand self-service: Cloud computing-based resources can generally be provisioned
without proper interaction of human from the different service provider. Manufacturing
based organization generally utilizes web self service portal as an interface for accessing
different accounts in order to see their cloud services (Almorsy, Grundy and Muller
2016).
 Broad network access: Cloud computing-based resources are generally available on the
network which can be accessed by different customer platform. In addition to this,
network latency as well as bandwidth are considered as an important aspect of network
access as they are mainly related with the quality of service that is provided on the
network.
 Resource pooling: Resources of cloud computing are mainly designed for supporting a
multi-tenant model which further allows different customers to share the same type of
applications while retaining both security as well as privacy (Stergiou et al. 2018).

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 Rapid elasticity and scalability: One of the most important things about cloud
computing is the ability of properly provisioning the resources within the cloud.
Elasticity is generally considered as the cloud computing landmark that further implies
that the organization can rapidly provision or de-provision the different resources of
cloud computing.
 Measured service: Utilization of cloud computing based resources are generally metered
and therefore the organization must pay as the way they generally utilize (Gangwar, Date
and Ramaswamy 2015). Resource utilization can be properly optimized by leveraging
charge per use-based capabilities.
2.7 Benefits and drawbacks of Cloud computing
Benefits
The benefits of cloud computing includes:
Reduced IT costs: Cloud computing generally helps in reducing the cost that is related
with managing as well as maintaining the IT system. Rather, buying different types of expensive
equipment, one can reduce the cost b utilizing the resources of cloud computing services.
Collaboration related efficiency: Collaboration within the cloud environment generally
helps in giving the business proper ability to communicate as well as share outside the traditional
methods. Selection of proper cloud computing models will be helpful in sharing the records to
the adviser in a very much secure way (Xia et al. 2016).
Flexibility of work practices: Cloud computing generally helps in allowing the
employees to be very much flexible in the work practices. If one can access the data then you are
off site which can be connected to the virtual office quickly as well as easily.

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Drawbacks
The drawbacks of cloud computing is listed below:
Security: As cloud service providers implement different types of security standards as well
as industry certificates but storing data as well as important files on the service providers
generally opens a number of risks.
Loss of control: Another party is generally trusted to take care for properly taking care
of the data. One needs to trust the providers data centers which are considered to be very much
compliant as well as secured (Chang, Kuo and Ramachandran 2016).
Technical issue: If technical issue arises then there is no choice but one needs to call the
hosted provider technical support team. One cannot fix the problem of cloud computing in house
whereas some of the providers does not offer proper technical support.
2.8 Cloud deployment models
The different types of cloud deployment models are listed below:
Public cloud: This type of cloud deployment generally utilizes different types of
computing resources including hardware, software as well as different types of subscription.
Most common utilization of public clouds are utilized for application development as well as for
the purpose of testing (Zhan et al. 2015).
Private cloud: It is generally the infrastructure that is mainly utilized by a organization
and such infrastructure are mainly managed by taking support from different user groups. In
addition to this, private clouds are considered to be very much expensive as compared to the
public cloud.

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Hybrid cloud: In hybrid cloud, an organization generally utilizes interconnected private
as well as public cloud-based infrastructure. Many different organizations generally utilize this
model when they generally scale up different infrastructure rapidly.
Community cloud: The deployment model generally helps in supporting a number of
organizations sharing based computing resources which are generally a part of computing.
Access to community cloud environment are mainly restricted to different members of
community (González-Martínez et al. 2015).
3. Option selected for the Medical consultancy
3.1 Justification for suggested deployment and service model and security implications
It is found that cloud computing option is mainly proposed for the Medical consultancy
that is mainly based on the scenario.
Suggested deployment
Private cloud is one of the cloud based infrastructure that is mainly utilized by different
stand-alone organizations. It generally helps in offering greater control over security. It is found
that the data is mainly backed up with the help of a firewall and can be internally hosted that
generally have very much high security requirements, high availability demands as well as high
management-based demands (Skala et al. 2015). The main benefits of using private cloud is that
the organization generally attain their IT system with the help of private IT system within the
private cloud environment including proper flexibility, strong security, regulatory compliance as
well as cost savings. In addition to this, a number of benefits related with cloud computing is
mainly delivered with the help of virtualization technology which further underlies different

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types of cloud. When most of the servers are underused then virtualization generally helps in
providing private cloud users with a number of resource utilization.
One of the most important benefits that the medical consultancy will achieve by using
private cloud is the flexibility that is mainly provided by virtualization that further enables a
number of applications. In addition to this the resource requirements for an application change
which is further dedicated to the virtual server helps in running the application which further can
be adjusted to meet them significantly (Li et al. 2018). Furthermore, the improved resource se as
well as flexibility is helpful for the organizations for ensuring proper performance of the
application and it further helps in reducing the costs by getting most out of the particular servers.
The private cloud not only helps in saving money over a particular on premise but it generally
cost very much less than a public cloud environment. Low cost is considered as one of the
primary benefits of the public cloud and it further helps in providing greatest cost savings to
some of the organizations (Singh and Chana 2016). In addition to this, the popularity of private
cloud within the environment of the organization is mainly because of compliance concerns that
are mainly due to the security as well as control benefits. Another important reason is that it
helps in offering different types of hosted private clouds which further helps in addressing a
number of elements of compliance with the help of regulations.
Suggested service model
IaaS or Infrastructure as a Service is basically one of the computing resources over the
cloud. It is found that an IaaS provider generally helps in providing a number of computing
related infrastructures including storage, servers, networking hardware as well as support and
maintenance. It is found that business generally opt for the computing resources based on their
requirement when they generally need to properly install the hardware on the premises. It is