Database Administration
Final Test Solutions
Course Introduction
Database Administration covers the principles and practices necessary for managing and maintaining database management systems (DBMS). This course explores topics including installation, configuration, performance tuning, backup and recovery, security, and user management. Students will gain hands-on experience in monitoring and optimizing databases, implementing access controls, and developing strategies for ensuring data integrity and availability. Emphasis is placed on both relational and non-relational database platforms, preparing students for real-world challenges faced by database administrators in various organizational environments.
Recommended Textbook
Concepts of Database Management 8th Edition by Philip J. Pratt
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9 Chapters
525 Verified Questions
525 Flashcards
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Page 2
Chapter 1: Introduction to Database Management
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Sample Questions
Q1) A database file requires a large amount of disk space and internal
Answer: memory
Q2) During the ____ process,a database expert determines the structure of the required database.
A) data security
B) database integrity
C) database design
D) database selection
Answer: C
Q3) Which of the following statements is correct?
A) In a nondatabase, file-oriented environment, data is often partitioned into several disjointed systems with each system having its own collection of files.
B) User data cannot be combined and shared among authorized users.
C) Database users should not have access to the same information.
D) The elimination of redundancy is always possible.
Answer: A
Q4) The problem of inconsistency in data is a direct result of
Answer: redundancy
Page 3
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Chapter 2: The Relational : Introduction, QBE, and Relational Algebra
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50 Verified Questions
50 Flashcards
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Sample Questions
Q1) The field on which records are sorted is called the ____________________.
Answer: sort key
Q2) A relational database handles entities,attributes,and relationships by storing each entity in its own table.
A)True
B)False
Answer: True
Q3) When duplicate column names exist in a database and you need to indicate the column to which you are referring,____.
A) do not use these two tables together
B) do not use the column names in the same statement
C) write both the table name and the column name, separated by a period
D) write the table name only
Answer: C
Q4) A column whose value uniquely identifies a given row in the table is the secondary key.
A)True
B)False
Answer: False
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Chapter 3: The Relational : SQL
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75 Verified Questions
75 Flashcards
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Sample Questions
Q1) Fields will appear in the query results in the order in which they are listed in the SELECT clause.
A)True
B)False
Answer: True
Q2) Many versions of SQL require you to end a command with a ____.
A) comma (,)
B) period (.)
C) colon (:)
D) semicolon (;)
Answer: D
Q3) The ____ clause can be used to create groups of records.
A) AGGREGATE
B) SORT BY
C) ORDER BY
D) GROUP BY
Answer: D
Q4) The ____________________ data type stores integers,but uses less space than INTEGER.
Answer: SMALLINT
Page 5
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Chapter 4: The Relational : Advanced Topics
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Sample Questions
Q1) One advantage of a view is that different users can view the same data in different ways.
A)True
B)False
Q2) One advantage of using views is that they provide data dependence.
A)True
B)False
Q3) In Access,you can restrict the legal values accepted by a field by entering an appropriate ____________________ that data entered in the field must follow.
Q4) Access supports stored procedures.
A)True
B)False
Q5) A stored procedure is placed on a client computer.
A)True
B)False
Q6) ____________________ is the prevention of unauthorized access to the database.
Q7) Within relational model systems on both mainframes and personal computers,the main mechanism for increasing the efficiency with which data is retrieved from the database is the ____________________.
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Chapter 5: Database Design 1: Normalization
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Sample Questions
Q1) From all the ____ keys,one is chosen to be the primary key.
A) alternate
B) candidate
C) functional
D) normal
Q2) To correct update anomalies in a database,tables must be converted into various types of normal forms.
A)True
B)False
Q3) The ____________________ process enables you to identify the existence of potential problems in the design of a database.
Q4) Removal of repeating groups is the starting point in the quest to create tables that are as free of problems as possible.
A)True
B)False
Q5) A(n)____________________ is a condition that involves two or more relations.
Q6) Second normal form represents an improvement over ____________________ normal form.
Q7) Describe the procedure for converting a table to the third normal form.
Page 7
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Chapter 6: Database Design 2: Design Method
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Sample Questions
Q1) You can recognize entity subtypes by the fact the primary key is also a(n)____________________.
Q2) An alternative to the primary key of a table is listed with the ____ abbreviation in DBDL.
A) SK
B) FK
C) PK
D) AK
Q3) On an E-R diagram,the number closest to the rectangle represents ____ cardinality. A) maximum
B) minimum
C) midvalue
D) smallest
Q4) In an entity-relationship diagram,rectangles represent foreign keys.
A)True
B)False
Q5) A design that supports all user views is called a constructive design. A)True
B)False
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Chapter 7: Dbms Functions
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Sample Questions
Q1) The DBA usually creates groups of users called ____.
A) networks
B) communities
C) workgroups
D) clusters
Q2) One guideline for writing programs for concurrent updates in a PC-based DBMS states that if an update transaction must lock more than one row in the same table,the whole table must be locked.
A)True
B)False
Q3) In two-phase locking,the second phase is the shrinking phase.
A)True
B)False
Q4) ____ integrity implies that the value entered for any field should be consistent with the data type for that field.
A) Data type
B) Legal value
C) Format
D) Secondary
Q5) Explain how a database is updated using batch processing.
Page 9
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Chapter 8: Database Administration
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Sample Questions
Q1) In most cases,access to every table and field in a database is a necessity for every user.
A)True
B)False
Q2) When a company decides to purchase a new DBMS,the CEO leads the DBMS evaluation and selection effort.
A)True
B)False
Q3) The DBA creates security policies and procedures.
A)True
B)False
Q4) With just two exceptions,the DBA grants access and update privileges to the production system only to authorized users.What are the exceptions?
Q5) The DBA is responsible for DBMS maintenance,data dictionary management,and training.
A)True
B)False
Q6) What is a hot site?
Q7) What is the DBA's role with regard to access privileges?
Page 10
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Chapter 9: Database Management Approaches
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Sample Questions
Q1) In order to view and analyze higher levels of aggregate data,you must drill down the data.
A)True
B)False
Q2) If the client only performs the presentation functions (and not the business functions),then the client is known as a fat client.
A)True
B)False
Q3) Which of the following is an advantage of distributed databases?
A) Local control of data
B) Easier updates of replicated data
C) More complex query processing
D) More complex treatment of concurrent updates
Q4) A DDBMS that has at least two sites at which the local DBMS are different is known as a ____.
A) homogeneous DDBMS
B) heterogeneous DDBMS
C) holistic DDBMS
D) DDBMS
Q5) Methods are defined during the ___________________ process.
Page 11
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