Data Warehouse Mid Term Multiple Choice Flash Cards
11. Customers cars, and parts are examples of: A. entities. B. attributes. C. cardinals. D. relationships.,
Answer: A
17. A property or characteristic of an entity type that is of interest to the organization is called a(n.: A. attribute. B. coexisting entity. C. relationship. D. cross-function.
Answer: A
17. Which of the following is NOT an advantage of database systems? A. Redundant data B. Program-data independence C. Better data quality D. Reduced program maintenance
Answer: A
19. A person's name birthday, and social security number are all examples of: A. attributes. B. entities. C. relationships. D. descriptors.,
Answer: A
20. In a file processing environment descriptions for data and the logic for accessing the data are built into: A. application programs. B. database descriptors. C. fields. D. records.,
Answer: A
27. A simultaneous relationship among the instances of three entity types is called a ________ relationship. A. ternary B. tertiary C. primary D. binary
Answer: A
28. The following figure shows an example of: A. a composite attribute. B. a relational attribute. C. a derived attribute. D. a multivalued attribute.
Answer: A
3. Program-data dependence is caused by: A. file descriptions being stored in each database application. B. data descriptions being stored on a server. C. data descriptions being written into programming code. D. data cohabiting with programs.
Answer: A
30. In the figure below which attribute is derived? A. Years_Employed B. Employee_ID C. Skill D. Address,
Answer: A
32. The total quiz points for a student for an entire semester is a(n. ________ attribute. A. derived B. mixed C. stored D. addressed
Answer: A
35. An entity that associates the instances of one or more entity types and contains attributes specific to the relationships is called a(n.: A. associative entity. B. build entity. C. gateway entity. D. smush entity.
Answer: A
38. Organizing the database in computer disk storage is done in the ________ phase. A. design B. maintenance C. analysis D. implementation
Answer: A
39. In the figure shown below which of the following is true? A. A person can marry at most one person. B. A person has to be married. C. A person can marry more than one person, but that person can only be married to one person. D. A person can marry more than one person.,
Answer: A
4. Data modeling may be the most important part of the systems development process because: A. data characteristics are important in the design of programs and other systems components. B. the data in a system are generally less complex than processes and play a central role in development. C. data are less stable than processes. D. it is the easiest.
Answer: A
41. In the following diagram which of the answers below is true? A. Each patient has one or more patient histories. B. Each patient has one and only one visit. C. Each patient history belongs to zero and one patient. D. Each patient history belongs to many patients.,
Answer: A
42. In the figure shown below which of the following business rules would apply? A. Each vendor can supply many parts to any number of warehouses, but need not supply any parts. B. Each part must be supplied by exactly one vendor to any number of warehouses. C. Each warehouse can be supplied with any number of parts from more than one vendor, and each warehouse could be supplied with no parts. D. VENDOR is not allowed.,
Answer: A
43. In the following diagram which answer is true? A. Each employee can supervise one employee, no employees or many employees. B. Each employee can manage many departments. C. Each employee works in more than one department. D. Each employee was fired.,
Answer: A
43. The three-schema approach includes which of the following schemas? A. Internal B. Logical C. Cross-functional D. Dissecting
Answer: A
45. ________ is the most popular RDMS data model notation. A. ERD B. END C. DRE D. RED
Answer: A
5. The most common types of entities are: A. strong entities. B. weak entities. C. associative entities. D. smush entities.
Answer: A
6. In an E-R diagram there are/is ________ business rule(s. for every relationship. A. two B. three C. one D. zero,
Answer: A
7. Business policies and rules govern all of the following EXCEPT: A. managing employees. B. creating data. C. updating data. D. removing data.
Answer: A
Chapter 1 The Database Environment and Development Process 1. A database is an organized collection of ________ related data. A. logically B. physically C. loosely D. badly
Answer: A
11. ________ are established between entities in a well-structured database so that the desired information can be retrieved. A. Entities B. Relationships C. Lines D. Ties
Answer: B
13. An entity type whose existence depends on another entity type is called a ________ entity. A. strong B. weak C. codependent D. variant
Answer: B
14. The following figure shows an example of: A. a one-to-many relationship. B. a strong entity and its associated weak entity. C. a co-dependent relationship. D. a double-walled relationship.
Answer: B
15. A(n. ________ is the relationship between a weak entity type and its owner. A. member chain B. identifying relationship C. jump path D. chain link
Answer: B
16. ________ is a tool even non-programmers can use to access information from a database. A. ODBC B. Structured query language C. ASP D. Data manipulation query language
Answer: B
18. An attribute that must have a value for every entity (or relationship. instance is a(n.: A. composite attribute. B. required attribute. C. optional attribute. D. multivalued attribute.
Answer: B
18. An attribute that must have a value for every entity (or relationship. instance is an.: A. composite attribute. B. required attribute. C. optional attribute. D. multivalued attribute.
Answer: B
19. A rule that CANNOT be violated by database users is called a: A. password. B. constraint. C. program. D. view.
Answer: B
2. Older systems that often contain data of poor quality are called ________ systems. A. controlled B. legacy C. database D. mainframe
Answer: B
21. E. F. Codd developed the relational model in the: A. 1960s. B. 1970s. C. 1980s. D. 1990s.
Answer: B
22. The number of entity types that participate in a Unary relationship is: A. zero. B. one. C. two. D. three.
Answer: B
23. The period that can be considered a "proof of concept" time was the: A. 1950s. B. 1960s. C. 1970s. D. 1990s.
Answer: B
24. A relatively small team of people who collaborate on the same project is called a: A. server group. B. workgroup. C. data collaborative. D. typical arrangement.
Answer: B
25. A workgroup database is stored on a central device called a: A. client. B. server. C. remote PC. D. network.
Answer: B
26. In the following diagram which is true? A. It depicts a ternary relationship. B. It depicts a many-to-many relationship. C. Item represents a column. D. BOM_STRUCTURE represents a row.,
Answer: B
28. The need for consensus on data definitions is an example of which type of risk in the database environment? A. Specialized personnel needs B. Organizational conflict C. Conversion costs D. Legacy systems
Answer: B
29. A knowledge base of information or facts about an enterprise is called an.: A. enterprise information system. B. repository. C. systems information unit. D. database process.
Answer: B
3. A fact is an association between two or more: A. words. B. terms. C. facts. D. nuggets.
Answer: B
32. Languages menus, and other facilities by which users interact with the database are collectively called an.: A. client. B. user interface. C. icon. D. development environment.,
Answer: B
34. An attribute that uniquely identifies an entity and consists of a composite attribute is called a(n.: A. composite attribute. B. composite identifier. C. identifying attribute. D. relationship identifier.
Answer: B
34. The traditional methodology used to develop maintain and replace information systems is called the: A. Enterprise Resource Model. B. Systems Development Life Cycle. C. Unified Model. D. Systems Deployment Life Cycle.,
Answer: B
36. A ________ specifies the number of instances of one entity that can be associated with each instance of another entity. A. degree B. cardinality constraint C. counter constraint D. limit
Answer: B
38. A mutually exclusive relationship is one in which: A. an entity instance can participate in many different relationships. B. an entity instance can participate in only one of several alternative relationships. C. an entity instance cannot participate in a relationship with another entity instance. D. an entity instance bridges other XML documents.
Answer: B
4. Because applications are often developed independently in file processing systems: A. the data is always non-redundant. B. unplanned duplicate data files are the rule rather than the exception. C. data can always be shared with others. D. there is a large volume of file I/O.
Answer: B
44. A data warehouse derives its data from: A. on-line transactions. B. various operational data sources. C. reports. D. a datamart.
Answer: B
44. A student can attend five classes each with a different professor. Each professor has 30 students. The relationship of students to professors is a ________ relationship. A. one-to-one B. many-to-many C. one-to-many D. strong,
Answer: B
45. A value that indicates the date or time of a data value is called a: A. value stamp. B. time stamp. C. checkpoint. D. check counter.
Answer: B
9. All of the following are properties of metadata EXCEPT: A. data definitions. B. processing logic. C. rules or constraints. D. data structures.
Answer: B
Chapter 2 Modeling Data in the Organization 1. The logical representation of an organization's data is called a(n.: A. database model. B. entity-relationship model. C. relationship systems design. D. database entity diagram.
Answer: B
12. Which of the following is an entity that exists independently of other entity types? A. Codependent B. Weak C. Strong D. Variant
Answer: C
14. A user view is: A. what a user sees when he or she looks out the window. B. a table or set of tables. C. a logical description of some portion of the database. D. a procedure stored on the server.
Answer: C
16. An entity type name should be all of the following EXCEPT: A. concise. B. specific to the organization. C. as short as possible. D. a singular noun.
Answer: C
20. An attribute of an entity that must have a value for each entity instance is a(n.: A. optional attribute. B. composite attribute. C. required attribute. D. fuzzy attribute.
Answer: C
21. An attribute that can be broken down into smaller parts is called a(n. ________ attribute. A. associative B. simple C. composite D. complex
Answer: C
22. Which of the following is NOT an objective that drove the development and evolution of database technology? A. The need to provide greater independence between programs and data B. The desire to manage increasing complex data types and structures C. The desire to require programmers to write all file handling functionality D. The need to provide ever more powerful platforms for decision support applications
Answer: C
23. The number of entity types that participate in a relationship is called the: A. number. B. identifying characteristic. C. degree. D. counter.
Answer: C
25. In the following diagram what type of relationship is depicted? A. Unary B. Binary C. Ternary D. Quad,
Answer: C
27. Which of the following is NOT a cost and/or risk of the database approach? A. Specialized personnel B. Cost of conversion C. Improved responsiveness D. Organizational conflict
Answer: C
29. In the figure below which attribute is multivalued? A. Years_Employed B. Employee_ID C. Skill D. Address,
Answer: C
30. Which of the following is software used to create maintain, and provide controlled access to databases? A. Network operating system B. User view C. Database management system (DBMS. D. Attribute,
Answer: C
31. A centralized knowledge base of all data definitions data relationships, screen and report formats, and other system components is called a(n.: A. index. B. data warehouse. C. repository. D. database management system.,
Answer: C
33. Which of the following criteria should be considered when selecting an identifier? A. Choose an identifier that is not stable. B. Choose a null identifier. C. Choose an identifier that doesn't have large composite attributes. D. Choose the most complex identifier possible.
Answer: C
35. The SDLC phase in which every data attribute is defined every category of data is listed and every business relationship between data entities is defined is called the ________ phase. A. planning B. design C. analysis D. implementation,
Answer: C
37. 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
39. An iterative methodology that rapidly repeats the analysis design, and implementation phases of the SDLC is called: A. CASE. B. CAD. C. RAD. D. MST.,
Answer: C
40. For the relationship represented in the figure below which of the following is true? A. An employee can work in more than one department but does not have to work for any department. B. A department must have at least one employee. C. A department can have more than one employee. D. An employee has to work for more than one department.,
Answer: C
40. One of the most popular RAD methods is: A. automated design. B. structured walkthrough. C. prototyping. D. crafting.
Answer: C
41. ________ analyze the business situation and identify the need for information and information services to meet the problems or opportunities of the business. A. Programmers B. Users C. Systems analysts D. Database analysts
Answer: C
5. Relational databases establish the relationships between entities by means of common fields included in a file called a(n.: A. entity. B. relationship. C. relation. D. association.
Answer: C
6. A(n. ________ is often developed by identifying a form or report that a user needs on a regular basis. A. enterprise view B. reporting document C. user view D. user snapshot
Answer: C
9. Which of the following is NOT a characteristic of a good business rule? A. Declarative B. Atomic C. Inconsistent D. Expressible
Answer: C
10. A person place, object, event, or concept about which the organization wishes to maintain data is called an.: A. relationship. B. object. C. attribute. D. entity.,
Answer: D
10. 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
12. All of the following are primary purposes of a database management system (DBMS. EXCEPT: A. creating data. B. updating data. C. storing data. D. providing an integrated development environment.
Answer: D
13. With the database approach data descriptions are stored in a central location known as a: A. server. B. mainframe. C. PC. D. repository.
Answer: D
15. Which organizational function should set database standards? A. Management B. Application development C. Technical services D. Database Administration
Answer: D
18. The most common source of database failures in organizations is: A. lack of planning. B. inadequate budget. C. inadequate hardware. D. failure to implement a strong database administration function.
Answer: D
2. A good data definition will describe all of the characteristics of a data object EXCEPT: A. subtleties. B. examples. C. who determines the value of the data. D. who can delete the data.
Answer: D
24. A relationship between the instances of a single entity type is called a ________ relationship. A. ternary B. primary C. binary D. unary
Answer: D
26. Organizations that utilize the file processing approach spend as much as ________ of their IS development budget on maintenance. A. 40 percent B. 25 percent C. 60 percent D. 80 percent
Answer: D
31. An attribute that can be calculated from related attribute values is called a ________ attribute. A. simple B. composite C. multivalued D. derived
Answer: D
33. Database development begins with ________which establishes the range and general contents of organizational databases. A. database design B. cross-functional analysis C. departmental data modeling D. enterprise data modeling,
Answer: D
36. The SDLC phase in which database processing programs are created is the ________ phase. A. planning B. design C. analysis D. implementation
Answer: D
37. A relationship where the minimum and maximum cardinality are both one is a(n. ________ relationship. A. optional B. unidirectional C. mandatory link D. mandatory one
Answer: D
42. ________ do NOT concentrate on determining the requirements for the database component of an information system. A. Database analysts B. Systems analysts C. Programmers D. End Users
Answer: D
7. A graphical system used to capture the nature and relationships among data is called a(n.: A. XML data model. B. hypertext graphic. C. relational database D. data model.
Answer: D
8. A ________ defines or constrains some aspect of the business. A. business constraint B. business structure C. business control D. business rule
Answer: D
8. Data that describe the properties of other data are: A. relationships. B. logical. C. physical. D. metadata.
Answer: D