Hierarchical database - Study guides, Class notes & Summaries
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TYPICAL QUESTIONS & ANSWERS OBJECTIVE TYPE QUESTIONS
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TYPICAL QUESTIONS & ANSWERS 
 
OBJECTIVE TYPE QUESTIONS 
 
Each question carries 2 marks. 
 
Choose the correct or best alternative in the following: 
 
Q.1 In the relational modes, cardinality is termed as: 
 (A) Number of tuples. (B) Number of attributes. 
 (C) Number of tables. (D) Number of constraints. 
 
 Ans: A 
 
Q.2 Relational calculus is a 
 (A) Procedural language. (B) Non- Procedural language. 
 (C) Data definition language. (D) High level language. 
 
 Ans: B ...
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WGU C175 Data Management Foundations Final Exam Questions and Answers 2024/2025 Graded A+
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WGU C175 Data Management Foundations Final Exam Questions and Answers 2024/2025 Graded A+ . Which of the following is true of business rules? 
entity 
A(n) _______ is anything about which data are to be collected and stored. 
XML/Hybrid data model 
Oracle 11g is an example of the _______. 
entity instance 
Each row in the relational table is known as a(n) 
relational data model 
MySQL is an example of the _______. 
attribute 
A(n) _______ is the equivalent of a field in a file system. 
entity re...
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INSY 3304 FINAL REVIEW QUESTIONS & ANSWERS 2024/2025
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INSY 3304 FINAL REVIEW QUESTIONS & ANSWERS 2024/2025 
 
 
Limitations of a file system in data management - ANSWERS- Data dependence 
- Structural dependence 
- Data redundancy leading to deletion, insertion, and modification anomalies 
 
Components of a DBMS/database Environment - ANSWERS- hardware, software, people, procedure, and data 
 
Data Modeling - ANSWERSis iterative and progressive 
 
Database models - ANSWERSConceptual and Implementation 
 
Conceptual - ANSWERSThe conceptual model pro...
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Pre-Assessment for Data Management – Foundations Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
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What is a broad definition of data? Raw facts that are captured on printed or digital media 
What are data? Facts that are collected and stored in a database system 
What is a determining characteristic of unstructured data? It does not follow a data model. 
Which is true about flat files? They contain no internal hierarchical organization. 
Which technology has no internal hierarchy? Flat files 
How were data retrieved before database management systems? Sequentially from 
simple files
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WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAM 2 LATEST VERSIONS 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS)LATEST 2023|ALREADY GRADED A+
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WGU C175/D426 DATA MANAGEMENT FOUNDATIONS 
OA EXAM ACTUAL EXAM 2 LATEST VERSIONS 300 
QUESTIONS AND CORRECT DETAILED ANSWERS WITH 
RATIONALES (100% CORRECT AND VERIFIED 
ANSWERS)LATEST 2023|ALREADY GRADED A+ 
2 
What does modality refer to? How does it appear on ER diagram? - ANSWERRefers to the MINIMUM number of times an instance in one entity can be 
associated with instance of another entity (minima) 
Appears as a 0 or 1 on the relationship line, next to cardinality 
What is an important ...
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WGU C724 Information Systems Management Unit 4 Test
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WGU C724 Information Systems 
Management Unit 4 Test 
A tuple is one record or data set in a row -Answer-What are tuples and how are they 
used in databases? 
a.) A tuple is a collection of sequenced data fields 
b.) A tuple is one record or data set in a row 
c.) A tuple is a database field 
The flat file design is a single table database -Answer-What is the best description of a 
flat file database? 
a.) Flat file databases are hierarchical in nature. 
b.) Flat file databases are prevalent tod...
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BCIS FINAL Questions and Answers
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In _______, data from transactions are collected over time and then processed all at 
once. 
o :# batch processing 
Which view of data deals with how the data is actually formatted and located? 
o :# Physical view 
A field that uniquely identifies each record. 
o :# Primary key 
A data field that represents a description or characteristic of some entity. 
o :# Attribute 
In the object-oriented database model, this term is the equivalent to a field in a relational 
model. 
o :# Attribute 
Typic...
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WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM 2023-2024 ACTUAL EXAMS LATEST VERSIONS 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS) ALREADY GRADED A+
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WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAMS LATEST VERSIONS 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS) ALREADY GRADED A+ 
 
What does modality refer to? How does it appear on ER diagram? - ANSWER- 
Refers to the MINIMUM number of times an instance in one entity can be 
associated with instance of another entity (minima) 
Appears as a 0 or 1 on the relationship line, next to cardinality 
 
 
Define: Referential Integrity - A...
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WGU C175 FINAL+1+2 EXAM 2024 WITH 100% CORRECT ANSWERS
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What is a broad definition of data? - correct answer Raw facts that are captured on printed or digital media 
 
What are data? - correct answer Facts that are collected and stored in a database system 
 
What is a determining characteristic of unstructured data? - correct answer It does not follow a data model. 
 
Which is true about flat files? - correct answer They contain no internal hierarchical organization. 
 
Which technology has no internal hierarchy? - correct answer Flat files 
 
How w...
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INS3707 Assignment 1 (DETAILED ANSWERS) Semester 2 2024 - DISTINCTION GUARANTEED
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INS3707 Assignment 1 (DETAILED ANSWERS) Semester 2 2024 - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED Answers, guidelines, workings and references ..... QUESTION 1 
 
Choose the correct option from the list provided for each question. Write ONLY the correct letter of the alphabet next to the question number on your answer sheet, Example: 1.1 C. Each question counts 1 mark. 
 
 
 
1.1	…. Is a list of words that can be used to retrieve information in an information s...
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