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EPR INFORMATION TECHNOLOGY FINAL EXAM QUESTIONS AND ANSWERS
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EPR INFORMATION TECHNOLOGY FINAL EXAM QUESTIONS AND ANSWERS
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EPR INFORMATION TECHNOLOGY FINAL EXAMQUESTIONS AND ANSWERS.
What Is an ERP?
Correct Answer -An ERP is an integrated system developed all at once. It
changes earlier systems with systems developed as needed in the organization.
Organizational processes/procedures must change to ERP "best in practice"
processes/procedures as versus changing the ERP to the organization.
What is bolt-on software?
Correct Answer -Bolt-on software is software provided by third-party vendors
used in conjunction with already purchased ERP software.
What are the three tiers of ERP providers, the type of company for each tier, and
some examples?
Correct Answer -Tier I (service companies with revenues >$1 billion) SAP,
Oracle
Tier II (service companies with revenues between $50 million and $1 billion)
Microsoft, Infor, Epicor
Tier III (companies with revenues between $10 million and $50 million) Epicor,
QAD, IFS, Sage, Consona Corp
Why does Walmart invest heavily in IT?
Correct Answer -Walmart has more than 500 terabytes of data in its data
warehouse. It has invested heavily in IT so it can effectively collect, store,
analyze, and manage data to provide useful information.
What is the primary reason for data warehousing?
Correct Answer -To optimize business performance
What is the Big Bang method?
Correct Answer -The switch to ERP from legacy systems in a single event.
,What is the phased-in approach?
Correct Answer -The method to integrating ERP from legacy systems by doing
one branch of business at a time
What is Parallel Conversion?
Correct Answer -The old legacy systems and new ERP systems are operated
simultaneously for a period.
What is Pilot Conversion?
Correct Answer -Replacing an old system with a new system by
location/segment using it until all problems are resolved, and then
implementing it in the rest of the organization.
Why do Culture Changes effect implementing a new ERP?
Correct Answer -organization changes to how the ERP is designed. "ERP system
has neither the range of functionality nor the familiarity of the legacy systems
that they replace." "often entering more data than previously" p.485. As a
result there is opposition to the new system.
What is important in selecting an ERP?
Correct Answer -scalability, goodness of fit
What do scrubber programs do?
Correct Answer -They "scrub" data before conversion and help detect errors
before they pass through into the ERP
Define Cloud Computing
Correct Answer -Cloud computing is a model for enabling convenient, on-
demand network access to a shared pool of configurable computing resources
(e.g., networks, servers, storage, applications, and services) that can be rapidly
provisioned and released with minimal management effort or service provider
interaction.
, What are the three Classes of Computing Services?
Correct Answer -1. Software-as-a-Service - this basically access to software only
2. Infrastructure-as-a-Service - this is access to software and infrastructure
(hardware)
3. Platform-as-a-Service - most comprehensive service including systems
development.
What is Virtualization and what are the two areas?
Correct Answer -running multiple systems simultaneously on one physical
computer. Two areas: network virtualization which optimizes network speed &
reliability / is scalable and storage virtualization: increases storage capacity
What are some implementation issues surrounding cloud computing?
Correct Answer -cloud computing is not great for large companies because: not
inclined to walk away from investments in equipment, reprogramming legacy
systems would be too costly, and IT is too one-size-fits-all for large companies
that need special treatment for strategic information
What are some risks of cloud computing?
Correct Answer -The relevant risk issues include an extensive set of topics, such
as technology failures in the cloud, distributed denial of service attacks,
hacking, vendor exploitation, vendor failure to perform, and the loss of strategic
advantage.
Define: encryption
Correct Answer -the conversion of data into a secret code for storage in
databases and transmission over networks.
What are digital signatures and certificates?
Correct Answer -Digital signatures and digital certificates are used to verify the
authenticity of the message sender.
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