Exam (elaborations)
INF2603 ASSIGNMENT 2 SOLUTIONS 2021 SEMESTER 1 AND 2
- Institution
- University Of South Africa (Unisa)
INF2603 ASSIGNMENT 2 SOLUTIONS 2021 SEMESTER 1 AND 2
[Show more]
Content preview
INF2603 ASSIGNMENT 2 SOLUTIONS 2021 SEMESTER 1 AND 2Question 1.
a)
Data redundancy exists when the same data is stored unnecessarily at different places.
Data-entry errors. Data-entry errors are more likely to occur when complex entries (such
as 10-digit phone numbers) are made in several different files or recur frequently in one
or more files.
Data integrity problems. It is possible to enter a nonexistent sales agent’s name and
phone number into the CUSTOMER file, but customers are not likely to be impressed if
the insurance agency supplies the name and phone number of an agent who does not
exist.
Poor data security - Having multiple copies of data increases the chances for a copy of
the data to be susceptible to unauthorized access.
Data inconsistency - Data inconsistency exists when different and conflicting versions of
the same data appear in different places.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller hiltontutorials. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R207,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73918 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now