Cloud Computing: Technologies & Applications

This assignment delves into the core concepts of cloud computing, examining its different models (IaaS, PaaS, SaaS), advantages like scalability and cost-effectiveness, and potential drawbacks such as security concerns. It further explores the wide range of applications of cloud computing across sectors like healthcare, finance, and education. Students are tasked with researching and understanding these aspects to gain a comprehensive grasp of cloud computing's impact on modern technology.

Running head: CASE STUDY OF WEBB’S STORES
Assessment Number:
Case Study of Webb’s Stores
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CASE STUDY OF WEBB’S STORES
Executive Summary
The main aim of this report is to understand the case study of Webb’s Stores. It is an
Australian regional retailer, which even does its business in New Zealand. It sells food items
and specialty stuffs. Webb’s Stores has two major centers of data in Sydney and Melbourne.
Apart from these, it also has several regional data centers in Brisbane, Wagga, Auckland,
Port Macquarie and Bathurst. The following report discusses about the cloud computing
techniques in the daily operations. IaaS instance is useful for migrating any type of bulk
data. The other objectives of the report are to identify the risks that are related to cloud and
the protect access to those services.
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CASE STUDY OF WEBB’S STORES
Table of Contents
Introduction............................................................................................................................. 3
Discussion.................................................................................................................................3
1. Migration of Data............................................................................................................. 3
1.a Type of Security Deployed..........................................................................................3
1.b Benefits and Issues of Deployment............................................................................3
2. Risks for Migration............................................................................................................4
2.a The Database..............................................................................................................4
2.b The IaaS Infrastructure...............................................................................................4
2.c The Communications..................................................................................................5
3. Cloud for Backup and Removal of Records.......................................................................5
3.a Risks with Backup of Data...........................................................................................5
3.b Cloud Backup in DR Plans...........................................................................................6
4. Protecting Access and Recommendations........................................................................6
4.a IaaS Infrastructure......................................................................................................6
4.b MS SQL Server 2012 R2 Cloud Instance......................................................................6
4.c Cloud Network Infrastructure.....................................................................................7
4.d Cloud Backup and Restore Infrastructure...................................................................7
Conclusion................................................................................................................................ 8
References................................................................................................................................9
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CASE STUDY OF WEBB’S STORES
Introduction
Webb’s Stores is an Australian regional retailer of foodstuffs. The main data centers
of this retailer are in Melbourne and Sydney. The other regional data centers are in
Brisbane, Wagga, Auckland, Port Macquarie and Bathurst. They have decided to take cloud
computing in their business. The main problem that Webb’s Stores are facing is the
operational complexity, application complexity and management of data (Almorsy, Grundy
& Müller, 2016). They have thought of closing their data center in Auckland rather than
replacing or updating the existing infrastructure. The services and the data are moved to the
cloud. They are also planning to run a Risk and Security Workshop to assess the security
threats, risks and the probable methods of control required for hybrid cloud.
The report outlines the brief description of the case study of Webb’s Stores. It covers
the advantages of migration of data from MS SQL Server 2012 R2 database to IaaS instance
in cloud. It also covers the risks that are associated for the migration of data and services
with proper details (Garg, Versteeg & Buyya, 2013). The report further describes the
utilization of cloud in backup and for the removal of records. The final part of the report
gives a description about the procedure of protecting access to the services for moving to
the cloud. Proper recommendations are also provided in the report.
Discussion
1. Migration of Data
1.a Type of Security Deployed
Webb’s Stores are migrating their data and services from MS SQL Server 2012 R2
databases to an IaaS instance in the cloud. The type of cloud security policy that can be
deployed for protecting the critical database after moving to an IaaS instance in a public
cloud is the authorization and authentication (Hashizume et al., 2013). Cloud computing is
the way of utilizing the network of several remote servers that is hosted to control, store
and process data on the Internet. Authentication is the procedure to enable confidence in
the identities of the users. The Security Assertion Markup Language or SAML is an open
standard data format that are utilized for authentication in cloud computing. Authorization
is the permission given to a sanctioned individual or organizational body to access any
confidential data or service. Webb’s Stores is dealing with high security data and services. It
is evident that the authority will not give permission to access their data and services. The
security policy of authentication and authorization will provide them excess security and
there will be extremely low chances of the data being hacked (Malawski et al., 2013).
Moreover, cloud computing modules are extremely safe and secured and thus it can be
claimed that if Webb’s Stores will migrate their MS SQL Server 2012 R2 database to an IaaS
instance, they should undertake authentication and authorization security policy.
1.b Benefits and Issues of Deployment
Webb’s Stores is taking authentication and authorization policy for the security of
their data in the cloud. They will get several benefits if they will deploy this particular policy
in their organization. The main advantages of this policy are as follows:
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CASE STUDY OF WEBB’S STORES
i) Scalability: This security policy provides excellent scalability to the database (Li et
al., 2013). This will be extremely helpful to the company.
ii) Flexibility: Another main advantage of this security policy is that the entire system
becomes flexible.
iii) Cost Effective: The third advantage of this security policy is that the maintenance
cost becomes lower and thus can be claimed as cost effective.
iv) High Security: This is the most important benefit if this policy. The security level is
extremely high, which makes it popular for all organization (Arora, Parashar & Transforming,
2013). The authentication and authorization policy allows only authorized users to access
the data in authenticated servers.
However, in spite of the above-mentioned benefits, authentication and authorization
policy undergoes several issues (Tao et al., 2014). The issues that Webb’s Stores can have
after deploying this security policy are as follows:
i) Complexity: The main issue that is faced after deploying this type of security is the
complexity. The authentication and authorization sometimes become extremely complex
after it is deployed.
ii) Brute Force Attacks: This is another dangerous issue that is faced when this type
of security is deployed (Wei et al., 2014). Brute force attacks are extremely dangerous for
any organizational databases. It opens the way for intruders and hackers and the data can
be leaked.
iii) Storage: When password authentication is used, the usernames and passwords
should be stored in a database for authentication purposes. Storing of these passwords are
done in a particular database. The storage can be easily hacked and the passwords and the
usernames can be easily stolen.
iv) Encryption: Encryption is mandatory for this type of security (Garg, Versteeg &
Buyya, 2013). However, there is a high chance that symmetric or the asymmetric key would
be lost and the user can be in problem.
2. Risks for Migration
2.a The Database
Risks and threats are evident and common in case of data migration. Webb’s Stores
is migrating their database to an IaaS instance in public cloud. Several risks can occur in case
of database. The risks that applies to the database are as follows:
i) Data Loss: This is the principal risk that comes into account when data migration is
done. There is a high chance that the data would be loss when the data is being migrated
(Hashem et al., 2015). The database might lose the data completely.
ii) Corruption of Database: There is always a chance that the database would be
corrupted. This type of risk is very common in migration of data. The database even cannot
be recovered any more. Webb’s Stores should be careful before they migrate their data.
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CASE STUDY OF WEBB’S STORES
2.b The IaaS Infrastructure
The risks applied to the Infrastructure as a Service database are as follows:
i) Insider Threats: The main risk that is applied to the IaaS instance while migration
of data is the insider threats (Hashizume et al., 2013). An IaaS database in a public cloud
allows and enables internal administrator to access the entire database and data. Webb’s
Stores should be careful enough before migrating their data.
ii) Denial of Service: This is another important risk that can take place in case of
migrating the data in IaaS infrastructure. When a client utilizes the cloud resources, the
service quality of the other clients are degraded. The hackers use this opportunity and
utilize all the shared resources to slow down the system and even deny the cloud services
(Malawski et al., 2013). This type of attack is known as denial of service or DoS attack that
prevents the clients from accessing the resources.
2.c The Communications
There are several risks in communications between the Webb’s Stores and the IaaS
database. They are as follows:
i) Data Breach: This is the main risk that can occur while communication between
IaaS and Webb’s Stores (Fernando, Loke & Rahayu, 2013). Data can be easily breached while
migration.
ii) Incompatible Database: This is the second type of risk that can occur while
communications between IaaS and Webb’s Stores. Database should be compatible so that
there exists no issues.
3. Cloud for Backup and Removal of Records
3.a Risks with Backup of Data
i) Webb’s Stores should back up their data periodically. However, there are few risks
that can take place while this backup. They are as follows:
Security: This is the most common risk while backing up of data is done. Data gets
lost and can never be recovered once lost.
Control over Data: When data is backed up, the client of the cloud gets complete
control over that data (Hashem et al., 2015). This sometimes turns out to be risky as the
cloud provider gets complete access and control over that data. He might not be trusted
person and data can be theft.
ii) Webb’s Stores may face several risks while storing their data in the cloud storage.
The risks related to this are as follows:
Security: This is again the most common risk in case of cloud storage. There is a high
chance that the data would be lost and cannot be recovered (Wei et al., 2014). Moreover,
there is a chance that the data can be theft or hacked.
Lack of standardization: Vendors do not follow a standard set of rules and protocols
for business support. Therefore, Webb’s Stores should select their vendor carefully to avoid
any type of storage risks.
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CASE STUDY OF WEBB’S STORES
iii) Webb’s Stores might undergo several risks while retrieving their data from the
cloud (Dinh et al., 2013). The risks applied to retrieval of data are as follows:
Data Leakage: There is a high chance that the data can be leaked while retrieval.
This type of leakage is extremely common in case of public cloud.
Snooping: This is another most common risk in case of data snooping in cloud. The
hacker or the intruder can snoop in or look into the data while retrieval of data is done.
3.b Cloud Backup in DR Plans
Cloud disaster recovery or DR is the strategy for backup and recovery of data, which
is used for maintaining and storing of the electronic records for a security measure (Li et al.,
2013). Cloud backup plays a very significant role in cloud disaster recovery plan. When
Webb’s Stores is migrating their data to the cloud database, the DR plan helps them to
simplify the process. They do not have to migrate everything rather if they will only migrate
their storage. The main advantage that Webb’s Stores will get is that after deploying cloud
back up is that a copy of their data will be sent in a public network to an offsite server
(Rahimi et al., 2014). A provider of third party, who charges, normally hosts this server to
the customers.
The main advantage of backup and restore strategy is that the data can be easily
backed up. It will be helpful to Webb’s Stores as there will be a scope for backing up of data.
This will change the entire system of database of this organization. Another advantage of
data backup and restore strategy is that the data can be easily recovered by this strategy
(Sanaei et al., 2014). If there is a chance that the data can be lost during migration, this
strategy will help Webb’s Stores to recover their data quickly and easily.
4. Protecting Access and Recommendations
Webb’s Stores should be careful before providing access to the data and services.
Only the authorized and sanctioned individuals would get the permission to access the
services and data. There should be an authority only to look into the matter of authorization
of access to the services.
4.a IaaS Infrastructure
The infrastructure of IaaS is an extremely delicate infrastructure that should be
utilized by only authorized users. Two methods are recommended to Webb’s Stores for
protecting access to IaaS infrastructure. They are as follows:
i) Physical Access to Infrastructure: The physical access to the IaaS infrastructure
should be secured and protected so that unauthorized users are not able to access it (Dinh
et al., 2013). Cloud vendor controls these. Precisely, it is recommended that the access to
the physical server must be monitored and managed regularly.
ii) Access via API: Cloud infrastructure works best and with great speed with
management. It is automatic via API (Xiao, Song & Chen, 2013). It is recommended for
Webb’s Stores that they should take care of the fact that unauthorized utilization of API
should not exist at all.
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CASE STUDY OF WEBB’S STORES
4.b MS SQL Server 2012 R2 Cloud Instance
The access to the MS SQL Server 2012 R2 can be easily protected by adopting certain
security measures. The recommended security measures of access for MS SQL Server 2012
R2 are as follows:
i) Physical Access: There should be a strict limit for accessing the physical server and
the hardware components. The server should utilized by authorized users so that the access
can be controlled.
ii) Operating system Access: Webb’s Stores should be careful about their access to
the operating system of cloud network infrastructure. The main protection that Webb’s
Stores can take is the firewalls (Fernando, Loke & Rahayu, 2013). They provide excess
security and thus protect and control the access to the operating system. Moreover, it
separates and restricts the network traffic.
4.c Cloud Network Infrastructure
Webb’s Stores should be careful about the protection and control of access to the
infrastructure of cloud network. The recommendations that would be helpful for the cloud
network infrastructure are as follows:
i) Protection against External and Internal Threats: Security infrastructure should be
secured so that no external and internal threats can attack (Rittinghouse & Ransome, 2016).
The information security team can assess the performance of the system on regular basis
for relevant improvements. Webb’s Stores should protect and control the access of their
cloud network infrastructure so that the threats do not take place.
ii) Server Monitoring: The server should be monitored and controlled time to time so
that the access can be protected easily (Whaiduzzaman et al., 2014). The cloud network
infrastructure is the most important hardware and software components that complete the
entire cloud infrastructure.
4.d Cloud Backup and Restore Infrastructure
Webb’s Stores should be careful about the control and protection of access to the
cloud backup and restoration infrastructure (Rahimi et al., 2014). There are certain
recommendations for this organization for backing up and restoring their data in the
infrastructure. This particular infrastructure can be protected by few recommendations.
They are as follows:
i) Encryption: This is the best solution for any confidential data. The data should be
encrypted so that all the users are unable to retrieve those data (Avram, 2014). This
encrypted data form will be helpful for protecting access to the cloud backup and restore
infrastructure.
ii) Passwords: The cloud backup and restore infrastructure should be password
protected so that it is not accessible to everyone (Botta et al., 2016). Moreover, this
password should be biometric protected so that only authorized individuals will be able to
access it.
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CASE STUDY OF WEBB’S STORES
These recommendations would be helpful and useful to the Board of Webb’s Stores
for their successful migration of data to the IaaS cloud and their backup and restore
strategies.
Conclusion
Therefore, from the above discussion it can be concluded that Webb’s Stores is an
Australian regional retailer of foodstuffs. The main data centers of this retailer are in
Melbourne and Sydney. The other regional data centers are in Brisbane, Wagga, Auckland,
Port Macquarie and Bathurst. They have decided to take cloud computing in their business.
The main problem that Webb’s Stores are facing is the operational complexity, application
complexity and management of data. They have thought of closing their data center in
Auckland rather than replacing or updating the existing infrastructure. The services and the
data are moved to the cloud. They are also planning to run a Risk and Security Workshop to
assess the security threats, risks and the probable methods of control required for hybrid
cloud. The above report gives a detailed discussion about the benefits and problems in
migration of data to the IaaS instance in cloud. The report also provides the detailed
research about the risks and challenges about the database, the infrastructure of IaaS and
the communications between Webb’s and the IaaS database in the cloud. Webb’s Stores is
also considering to utilize cloud for their backup and archival of records. The report also
helps to understand the probable risks and issues associated with the backup, storage and
retrieval of data from the cloud. This cloud backup will also affect in their disaster and
recovery plans. This strategy would be helpful for Webb’s Stores. Moreover, relevant
recommendations are provided for protecting the access to the MS SQL Server 2012 R2,
infrastructures of IaaS, cloud network and cloud back and restore.
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CASE STUDY OF WEBB’S STORES
References
Almorsy, M., Grundy, J., & Müller, I. (2016). An analysis of the cloud computing security
problem. arXiv preprint arXiv:1609.01107.
Arora, R., Parashar, A., & Transforming, C. C. I. (2013). Secure user data in cloud computing
using encryption algorithms. International journal of engineering research and
applications, 3(4), 1922-1926.
Avram, M. G. (2014). Advantages and challenges of adopting cloud computing from an
enterprise perspective. Procedia Technology, 12, 529-534.
Botta, A., De Donato, W., Persico, V., & Pescapé, A. (2016). Integration of cloud computing
and internet of things: a survey. Future Generation Computer Systems, 56, 684-700.
Dinh, H. T., Lee, C., Niyato, D., & Wang, P. (2013). A survey of mobile cloud computing:
architecture, applications, and approaches. Wireless communications and mobile
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generation computer systems, 29(1), 84-106.
Garg, S. K., Versteeg, S., & Buyya, R. (2013). A framework for ranking of cloud computing
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Hashem, I. A. T., Yaqoob, I., Anuar, N. B., Mokhtar, S., Gani, A., & Khan, S. U. (2015). The rise
of “big data” on cloud computing: Review and open research issues. Information
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Hashizume, K., Rosado, D. G., Fernández-Medina, E., & Fernandez, E. B. (2013). An analysis
of security issues for cloud computing. Journal of Internet Services and
Applications, 4(1), 5.
Li, M., Yu, S., Zheng, Y., Ren, K., & Lou, W. (2013). Scalable and secure sharing of personal
health records in cloud computing using attribute-based encryption. IEEE
transactions on parallel and distributed systems, 24(1), 131-143.
Malawski, M., Juve, G., Deelman, E., & Nabrzyski, J. (2015). Algorithms for cost-and
deadline-constrained provisioning for scientific workflow ensembles in IaaS
clouds. Future Generation Computer Systems, 48, 1-18.
Rahimi, M. R., Ren, J., Liu, C. H., Vasilakos, A. V., & Venkatasubramanian, N. (2014). Mobile
cloud computing: A survey, state of art and future directions. Mobile Networks and
Applications, 19(2), 133-143.
Rittinghouse, J. W., & Ransome, J. F. (2016). Cloud computing: implementation,
management, and security. CRC press.
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computing: taxonomy and open challenges. IEEE Communications Surveys &
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Tao, F., Cheng, Y., Da Xu, L., Zhang, L., & Li, B. H. (2014). CCIoT-CMfg: cloud computing and
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Whaiduzzaman, M., Sookhak, M., Gani, A., & Buyya, R. (2014). A survey on vehicular cloud
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Xiao, Z., Song, W., & Chen, Q. (2013). Dynamic resource allocation using virtual machines for
cloud computing environment. IEEE transactions on parallel and distributed
systems, 24(6), 1107-1117.
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