Database Administration
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Course Introduction
Database Administration introduces students to the essential concepts and practices involved in managing, maintaining, and securing database systems. The course covers core topics such as database architecture, installation and configuration, user management, backup and recovery strategies, performance tuning, and security management. Students will gain hands-on experience with leading database management systems, learning how to optimize database performance, ensure data integrity, and implement disaster recovery solutions. Emphasis is placed on real-world administrative tasks and troubleshooting, preparing students for roles in database administration across diverse organizational environments.
Recommended Textbook
Modern Database Management 12th Edition by Jeffrey A. Hoffer
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14 Chapters
1469 Verified Questions
1469 Flashcards
Source URL: https://quizplus.com/study-set/1058
Page 2
Chapter 1: The Database Environment and Development Process
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116 Verified Questions
116 Flashcards
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Sample Questions
Q1) The SDLC phase in which the detailed conceptual data model is created is the ________ phase.
A) planning
B) design
C) analysis
D) implementation Answer: C
Q2) Although personal databases improve productivity, one risk is that data cannot be shared with other users.
A)True
B)False Answer: True
Q3) A constraint is a rule in a database system that can be violated by users.
A)True
B)False Answer: False
Q4) Multitier client/server database applications contain a business logic layer.
A)True
B)False Answer: True
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Chapter 2: Modeling Data in the Organization
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103 Verified Questions
103 Flashcards
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Sample Questions
Q1) The name used for an entity type should never be the same in other E-R diagrams on which the entity appears.
A)True
B)False
Answer: False
Q2) A simultaneous relationship among the instances of three entity types is called a ________ relationship.
A) ternary
B) tertiary
C) primary
D) binary
Answer: A
Q3) Which of the following is NOT a good characteristic of a data name?
A) Relates to business characteristics
B) Readable
C) Repeatable
D) Relates to a technical characteristic of the system
Answer: D
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4
Chapter 3: The Enhanced E-R Model
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103 Verified Questions
103 Flashcards
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Sample Questions
Q1) The disjoint rule specifies that if an entity instance of the supertype is a member of one subtype, it MUST simultaneously be a member of another subtype.
A)True
B)False
Answer: False
Q2) An entity cluster should focus on some area of interest to some community of users, developers or managers.
A)True
B)False
Answer: True
Q3) It is easy to miss the opportunity to visualize future requirements shown in the full data model when using a packaged data model.
A)True
B)False
Answer: True
Q4) Describe how subtype discriminators are used when we have overlapping subtypes. Answer: When we have overlapping subtypes, we need to create a composite subtype discriminator with Boolean values.
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Page 5
Chapter 4: Logical Database Design and the Relational Model
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102 Verified Questions
102 Flashcards
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Sample Questions
Q1) All values that appear in a column of a relation must be taken from the same domain.
A)True
B)False
Q2) A primary key that consists of more than one attribute is called a:
A) foreign key.
B) composite key.
C) multivalued key.
D) cardinal key.
Q3) The primary key of the many side migrates to the one side when transforming a one-to-many relationship.
A)True
B)False
Q4) The truncate table statement in SQL creates a new table.
A)True
B)False
Q5) A co-dependency is a constraint between two attributes or two sets of attributes.
A)True
B)False
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Chapter 5: Physical Database Design and Performance
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103 Verified Questions
103 Flashcards
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Sample Questions
Q1) List the seven factors to consider when choosing a file organization for a particular file in a database.
Q2) A file organization where files are not stored in any particular order is considered a:
A) hashed file organization.
B) hash key.
C) multi-indexed file organization.
D) heap file organization.
Q3) What is parallel query processing and how is it useful?
Q4) Adding notations to the EER diagram regarding data volumes and usage is of no value to the physical design process.
A)True
B)False
Q5) A tablespace is a named set of disk storage elements in which physical files for the database tables may be stored.
A)True
B)False
Q6) Discuss three possible opportunities for denormalization.
Q7) What is a hashing algorithm and how is it used in hashed file organizations?
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Chapter 6: Introduction to SQL
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105 Verified Questions
105 Flashcards
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Sample Questions
Q1) ________ is a set of commands used to update and query a database.
A) DML
B) DDL
C) DCL
D) DPL
Q2) The following insert command would work fine: insert into budget values 121,222,111; A)True
B)False
Q3) Indexes generally slow down access speed in most RDMS. A)True
B)False
Q4) What were the original purposes of SQL, and does SQL as we know it today live up to those standards?
Q5) SQL has been implemented only in the mainframe and midrange environments. A)True
B)False
Q6) Discuss the pros and cons of using dynamic views.
Q7) What is a materialized view, and when would it be used?
Q8) What are some of the advantages and disadvantages to an SQL standard?
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Chapter 7: Advanced SQL
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107 Verified Questions
107 Flashcards
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Sample Questions
Q1) A join in which rows that do not have matching values in common columns are still included in the result table is called a(n):
A) natural join.
B) equi-join.
C) outer join.
D) union join.
Q2) The following code is an example of a Subquery.
SELECT Customer_T.CustomerID, Order_T.CustomerID, CustomerName, OrderID
FROM Customer_T, Order_T
WHERE Customer_T.CustomerID = Order_T. CustomerID;
A)True
B)False
Q3) RANK and DENSE-RANK are examples of:
A) ceilings.
B) door functions.
C) window functions.
D) moving functions.
Q4) What are some tips for developing queries?
Q5) When is it better to use a subquery over using a join?
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Chapter 8: Database Application Development
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105 Verified Questions
105 Flashcards
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Sample Questions
Q1) Client/server describes a networked computing model that distributes processes between computers that request services and computers that provide services.
A)True
B)False
Q2) The promise of Web services is the development of a standardized communication system using:
A) HTML.
B) XST.
C) XML.
D) XPath.
Q3) ODBC is an application programming interface that provides a common language for application programs to access and process an SQL database independent of the particular RDBMS that is accessed.
A)True
B)False
Q4) Customer-oriented architectures are a collection of services that communicate with each other in some manner.
A)True
B)False
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Chapter 9: Data Warehousing
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103 Verified Questions
103 Flashcards
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Sample Questions
Q1) A database action that results from a transaction is called a(n):
A) transition.
B) event.
C) log entry.
D) journal happening.
Q2) Grain and duration have a direct impact on the size of fact tables.
A)True
B)False
Q3) A data mart is a data warehouse that contains data that can be used across the entire organization.
A)True
B)False
Q4) ________ is/are a new technology which trade(s) off storage space savings for computing time.
A) Dimensional modeling
B) Column databases
C) Fact tables
D) Snowflake schemas
Q5) Why are data mining applications growing rapidly?
Q6) Explain the dependent data mart and operational data store architecture.
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Chapter 10: Data Quality and Integration
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105 Verified Questions
105 Flashcards
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Sample Questions
Q1) Data quality is essential for SOX and Basel II compliance.
A)True
B)False
Q2) Data quality ROI stands for:
A) return on installation.
B) risk of incarceration.
C) rough outline inclusion.
D) rate of installation.
Q3) Including data capture controls (i.e., dropdown lists) helps reduce ________ deteriorated data problems.
A) external data source
B) inconsistent metadata
C) data entry
D) lack of organizational commitment
Q4) What are some of the approaches to data integration?
Q5) Refresh mode is an approach to filling the data warehouse that employs bulk rewriting of the target data at periodic intervals.
A)True
B)False
Q6) What is data transformation?
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Chapter 11: Big Data and Analytics
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102 Verified Questions
102 Flashcards
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Sample Questions
Q1) Using data to predict events is an example of predictive analytics.
A)True
B)False
Q2) Economies of storage indicate data storage costs increase every year.
A)True
B)False
Q3) The 'schema on read' approach often incorporates JSON or XML.
A)True
B)False
Q4) OLAP, ROLAP, and TLAP are tools commonly used to load data into intermediate hypercube structures.
A)True
B)False
Q5) Big data allows for two different data types (text and numeric).
A)True
B)False
Q6) Descriptive analytics is the oldest form of analytics.
A)True
B)False
Q7) Describe the Five Vs of Big Data.
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Chapter 12: Data and Database Administration
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110 Verified Questions
110 Flashcards
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Sample Questions
Q1) Most data outages in organizations are caused by hardware failures.
A)True
B)False
Q2) Which of the following is NOT true of poor data and/or database administration?
A) Data timing problems
B) Multiple entity definitions
C) Unknown meanings of stored data
D) Maintaining a secure server
Q3) Which of the following is a principal type of authorization table?
A) Subject
B) Transaction
C) View
D) Index
Q4) An optimistic approach to concurrency control is called:
A) versioning.
B) denormalization.
C) deadlock resolution.
D) HappyControl.
Q5) What is backward and forward recovery?
Q6) What are integrity controls? Describe the different types.
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Chapter 13: Distributed Databases
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100 Verified Questions
100 Flashcards
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Sample Questions
Q1) Applications that can tolerate out-of-date data are not the best candidates for data replication.
A)True
B)False
Q2) Which of the following is true of distributed databases?
A) Less reliable
B) Better local control
C) Slower response time
D) Centralized
Q3) A design goal for distributed databases to allow programmers to treat a data item replicated at several sites as though it were at one site is called:
A) location transparency.
B) replication accessibility.
C) replication transparency.
D) data accessibility.
Q4) What is data replication?
Q5) What are the three different kinds of transparencies used in distributed database management systems?
Q6) What business conditions encourage the use of distributed databases?
Page 15
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Chapter 14: Object-Oriented Data Modeling
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105 Verified Questions
105 Flashcards
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Sample Questions
Q1) When an object is an instance of more than one class, it is called:
A) multiplicity.
B) polymorphism.
C) multiple classification.
D) multiple associations.
Q2) Which of the following is a function or service provided by all instances of a class?
A) Operation
B) Implementation
C) Class group
D) Query
Q3) A constructor operation does not alter an instance of a class.
A)True
B)False
Q4) All of the following are benefits of object-oriented modeling EXCEPT:
A) the ability to tackle more challenging problem domains.
B) increased consistency among analysis, design, and programming activities.
C) decreased communication among the users, analysts, designers, and programmers.
D) reusability of analysis, design, and programming results.
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Page 16