Advanced Database Systems
Study Guide Questions
Course Introduction
Advanced Database Systems explores the principles and technologies underlying modern database management systems, building upon foundational knowledge to examine complex topics such as query optimization, transaction management, distributed databases, NoSQL systems, big data architectures, and data warehousing. The course emphasizes both theoretical frameworks and practical applications, enabling students to design, implement, and manage sophisticated database solutions that address scalability, consistency, security, and performance challenges in contemporary computing environments.
Recommended Textbook
Database Systems Design Implementation and Management 11th Edition by Carlos Coronel
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Chapter 1: Database Systems
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Sample Questions
Q1) is the body of information and facts about a specific subject.
A) Validation
B) A format
C) Knowledge
D) A database
Answer: C
Q2) A(n) develops when all required changes in the redundant data are not made successfully.
Answer: data anomaly anomaly
Q3) A(n) is a specific request issued to the DBMS for data manipulation.
Answer: query
Q4) provide a description of the data characteristics and the set of relationships that link the data found within the database.
A) Queries
B) End-user data
C) Metadata
D) Schemas
Answer: C
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Chapter 2: Data Models
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Sample Questions
Q1) An implementation-ready data model should contain a description of the data structure that will store the end-user data.
A)True
B)False
Answer: True
Q2) A(n) is anything about which data are to be collected and stored.
A) attribute
B) entity
C) relationship
D) constraint
Answer: B
Q3) A disadvantage of the relational database management system (RDBMS) is its inability to hide the complexities of the relational model from the user.
A)True
B)False
Answer: False
Q4) Each row in a relation is called a(n) .
Answer: tuple
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Chapter 3: The Relational Database Model
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Q1) In a relational model, are also used to establish relationships among tables and to ensure the integrity of the data.
Answer: keys
Q2) What is a key and how is it important in a relational model?
Answer: In a relational model, keys are important because they are used to ensure that each row in a table is uniquely identifiable. They are also used to establish relationships among tables and to ensure the integrity of the data. A key consists of one or more attributes that determine other attributes. For example, an invoice number identifies all of the invoice attributes, such as the invoice date and the customer name.
Q3) The idea of determination is unique to the database environment.
A)True
B)False
Answer: False
Q4) An index key can have multiple (a composite index).
Answer: attributes
Q5) Each table in a relational database must have a primary key.
A)True
B)False
Answer: True
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Chapter 4: Entity Relationship Er Modeling
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Sample Questions
Q1) A attribute can be further subdivided to yield additional attributes.
A) composite
B) simple
C) single-valued
D) multivalued
Q2) A attribute is one that cannot be subdivided.
A) composite
B) simple
C) single-valued
D) multivalued
Q3) In the original Chen notation, each attribute is represented by an oval with the attribute name connected to an entity rectangle with a line.
A)True
B)False
Q4) A(n) relationship is also known as an identifying relationship.
Q5) Composite attributes make it easier to facilitate detailed queries.
A)True
B)False
Q6) The concept of relationship strength is based on how the of a related entity is defined.
Page 6
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Chapter 5: Advanced Data Modeling
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Sample Questions
Q1) One important inheritance characteristic is that all entity subtypes inherit their primary key attribute from their supertype.
A)True
B)False
Q2) In which two cases are composite primary keys particularly useful?
Q3) In the context of total completeness, in a(n) , every supertype occurrence is a member of only one subtype.
A) foreign key constraint
B) nonunique constraint
C) overlapping constraint
D) disjoint constraint
Q4) An entity cluster is considered "virtual" or " " in the sense that it is not actually an entity in the final ERD.
Q5) An entity supertype can have disjoint or overlapping entity subtypes.
A)True
B)False
Q6) The specifies whether each entity supertype occurrence must also be a member of at least one subtype.
Q7) Explain the "no change over time" characteristic of a primary key.
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Chapter 6: Normalization of Database Tables
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Sample Questions
Q1) Dependencies based on only a part of a composite primary key are known as dependencies.
A) primary
B) partial
C) incomplete
D) composite
Q2) Before converting a table into 3NF, it is imperative that the table already be in .
A) 1NF
B) 2NF
C) 4NF
D) BCNF
Q3) When designing a new database structure based on the business requirements of the end users, the database designer will construct a data model using a technique such as .
Q4) A determinant is any attribute whose value determines other values within a column.
A)True
B)False
Q5) A dependency based on only a part of a composite primary key is called a .
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Chapter 7: Introduction to Structured Query Language Sql
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Q1) A database language enables the user to perform complex queries designed to transform the raw data into useful information.
A)True
B)False
Q2) The SQL data type DATE stores date in the date format.
Q3) A(n) character is a symbol that can be used as a general substitute for other characters or commands.
Q4) A(n) , also known as a nested query or an inner query, is a query that is embedded (or nested) inside another query.
Q5) The conditional LIKE must be used in conjunction with wildcard characters.
A)True
B)False
Q6) To make the output more readable, the SQL standard permits the use of aliases for any column in a statement.
Q7) The syntax for creating an index is .
A) CREATE [NOT NULL] INDEX indexname FROM viewname(column1 [, column2]);
B) CREATE [UNIQUE] INDEX indexname ON tablename( column1 [, column2]);
C) CREATE [UNIQUE] INDEX indexname FROM tablename(column1 [, column2]);
D) CREATE [DEFAULT] INDEX indexname ON viewname(column1 [, column2]);
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Chapter 8: Advanced Sql
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Q1) In a subquery, the query is executed first.
A) left
B) right
C) inner
D) outer
Q2) A(n) routine pools multiple transactions into a single batch to update a master table field in a single operation.
Q3) A(n) join will select only the rows with matching values in the common attribute(s).
A) natural
B) cross
C) full
D) outer
Q4) To remedy the lack of procedural functionality in SQL, and to provide some standardization within the many vendor offerings, the SQL-99 standard defined the use of persistent stored modules.
A)True
B)False
Q5) Describe the characteristics of an Oracle sequence.
Q6) The syntax of the MINUS statement in Oracle is .
Page 10
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Chapter 9: Database Design
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Q1) The result of analysis phase of the Systems Development Life Cycle (SDLC) should be a better understanding of the system's functional areas, actual and potential problems, and opportunities.
A)True
B)False
Q2) The primary objective in database design is to create complete, normalized, nonredundant, and fully integrated conceptual, logical, and physical database models.
A)True
B)False
Q3) Programmers use database tools to the applications during coding of the programs.
Q4) The implementation phase of database design includes creating the database storage structure and loading the database, but does not provide for data management.
A)True
B)False
Q5) A is an information system component that handles a specific business function, such as inventory, orders, or payroll.
Q6) The first step in is to discover the data element characteristics.
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Chapter 10: Transaction Management and Concurrency Control
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Q1) To determine the appropriate order of the operations, the scheduler bases its actions on concurrency control algorithms, such as or time stamping methods.
Q2) A single-user database system automatically ensures of the database, because only one transaction is executed at a time.
A) serializability and durability
B) atomicity and isolation
C) serializability and isolation
D) atomicity and serializability
Q3) The interleaves the execution of database operations to ensure serializability.
Q4) The approach to scheduling concurrent transactions assigns a global unique stamp to each transaction.
A) scheduled
B) table-locking
C) unique
D) timestamping
Q5) In a heavily used database management system (DBMS), the prevention and detection of constitutes an important DBMS function.
Q6) What are database checkpoints?
Page 12
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Chapter 11: Database Performance Tuning and Query
Optimization
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Sample Questions
Q1) To generate database object statistics manually, following syntax should be used in Oracle: .
A) ANALYZE <TABLE/INDEX> object_name;
B) CREATE <TABLE/INDEX> object_name;
C) ANALYZE <TABLE/INDEX> object_name COMPUTE STATISTICS;
D) CREATE <TABLE/INDEX> object_name COMPUTE STATISTICS;
Q2) RAID systems use a single disk to create storage volumes.
A)True
B)False
Q3) DBMS performance tuning includes global tasks such as managing the DBMS processes in primary memory and managing the structures in physical storage. A)True
B)False
Q4) DBMS query processing has phases.
Q5) How can queries be written to perform the fastest when equality and inequality comparisons are needed?
Q6) The cache is a shared, reserved memory area that stores the most recently executed SQL statements or PL/SQL procedures, including triggers and functions.
Page 13
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Chapter 12: Distributed Database Management Systems
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Sample Questions
Q1) The processor is the software component found in each computer that requests data. It receives and processes the application's data requests.
A) database
B) transaction
C) data
D) network
Q2) A database management system needs to prepare the data for presentation to the end user or to an application program.
A) security
B) concurrency control
C) formatting
D) I/O interface
Q3) One of the advantages of a distributed database management system (DDBMS) is improved communication.
A)True
B)False
Q4) Explain the difference between homogeneous and heterogeneous distributed database management systems (DDBMS).
Q5) A transaction processor is also known as the processor.
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Chapter 13: Business Intelligence and Data Warehouses
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Q1) Multidimensional data analysis techniques include advanced computational functions.
A)True
B)False
Q2) What is the ROLLUP extension to the GROUP BY clause? Provide the syntax for this extension.
Q3) The data warehouse development life cycle differs from classical systems development.
A)True
B)False
Q4) ROLAP and MOLAP vendors are working toward the integration of their respective solutions within a unified decision support framework.
A)True
B)False
Q5) _____ online analytical processing provides OLAP functionality by using relational databases and familiar relational query tools to store and analyze multidimensional data.
Q6) _____ are numeric measurements (values) that represent a specific business aspect or activity.
Page 15
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Chapter 14: Database Connectivity and Web Technologies
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Sample Questions
Q1) A(n) file provides the composition of the database's logical model and defines the syntax rules for an XML document.
A) XMLD
B) XHTML
C) DTD
D) meta
Q2) is an application programming interface that allows a Java program to interact with a wide range of data sources (relational databases, tabular data sources, spreadsheets, and text files).
Q3) The is the most specialized object in the ADO.NET framework.
A) Command
B) DataReader
C) DataAdapter
D) DataSet
Q4) In a document type definition (DTD) file, a plus (+) symbol beside an element indicates that it is an optional child element within its parent.
A)True
B)False
Q5) What is JavaScript? How does it work?
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Chapter 15: Database Administration and Security
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Sample Questions
Q1) Within the data security framework, is concerned with keeping data consistent and free of errors or anomalies.
Q2) The administrator is responsible for strategic planning.
A) system
B) data
C) database
D) program
Q3) are written instructions that describe a series of steps to be followed during the performance of a given activity.
A) Policies
B) Standards
C) Guidelines
D) Procedures
Q4) Having a computerized DBMS guarantees that the data will be properly used to provide the best solutions required by managers.
A)True
B)False
Q5) Explain conflict and problem resolution as part of the DBA's end-user support services.
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