Information Technologỵ Management
̣ – OA Practice Set 2, Part 1
Questions with Correct Answers and Explanations
Question 1: Which of the following̣ describes the main purpose of a Database Manag̣ ement
System (DBMS)?
A. To design
̣ data structures without maintaining ̣ data
B. To manage ̣ data storage,
̣ relationships, and security
C. To provide real-time analytical reports
D. To process web-based transactions only
Correct Answer: To manage
̣ data storage,
̣ relationships, and security
Explanation: A DBMS is responsible for creating ̣ and managị ng ̣ data structures, defining ̣ relationships, enforcing ̣
security, and allowing ̣ for data storage
̣ and retrieval.
Question 2: Which type of database structure uses parent-child relationships in a hierarchy,
where each data point can only appear in one place?
A. Network Database
B. Relational Database
C. Hierarchical Database
D. Object-Oriented Database
Correct Answer: Hierarchical Database
Explanation: Hierarchical databases organize
̣ data in a tree-like structure with parent-child relationships, allowing ̣ each
data element to have only one parent.
Question 3: In data mining̣ , which model would a retailer use to identify products often
purchased tog̣ ether?
A. Classification
B. Association
C. Regression
̣
D. Clustering ̣
Correct Answer: Association
Explanation: Association identifies relationships between data points, such as products often boug h
̣ t toge
̣ ther, which
retailers use to improve recommendations and sales.
Question 4: If a company wants to predict the future performance of a stock based on past
trends, which type of analytics should they use?
A. Text Analytics
B. Predictive Analytics
C. Marketing ̣ Analytics
D. Web Analytics
Correct Answer: Predictive Analytics
WGU C954 OA Practice - OAPractice Set 2 Part 1 Page
̣ 1
, Explanation: Predictive analytics uses historical data to identify trends and forecast future outcomes, making ̣ it suitable
for stock performance predictions.
Question 5: Which network security principle ensures that data has not been altered during̣
transmission?
A. Confidentiality
B. Integrity
̣
C. Availability
D. Authenticity
Correct Answer: Integrity
̣
Explanation: Integṛ ity ensures that data remains unchange
̣ d from its origị nal form, validating ̣ that information has not
been tampered with.
Question 6: What type of malware replicates itself and spreads from computer to computer
without user intervention?
A. Virus
B. Spyware
C. Trojan Horse
D. Worm
Correct Answer: Worm
Explanation: Worms are a type of malware that can spread independently across networks without user interaction,
often causing ̣ widespread issues.
Question 7: Which e-commerce business model involves consumers selling̣ directly to other
consumers?
A. B2B
B. C2B
C. C2C
D. G2C
Correct Answer: C2C
Explanation: Consumer-to-consumer (C2C) e-commerce facilitates transactions directly between consumers, typically
through
̣ online marketplaces.
Question 8: When a system is desig̣ ned for continuous chang̣ e and adaptation, such as
frequent releases, which SDLC approach is it following̣ ?
A. Waterfall
B. Agile
̣
C. Prototyping ̣
D. Parallel
Correct Answer: Agile
̣
Explanation: Agị le focuses on flexibility and rapid iteration, making ̣ it ideal for environments requiring ̣ frequent updates
and changes.
̣
Question 9: Which phase of the SDLC is specifically concerned with user training̣ and
documentation?
WGU C954 OA Practice - OAPractice Set 2 Part 1 Page
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