MIS CH 5
10) Relational databases represent relationships using ________. A) foreign keys B) file systems C) metadata D) unique identifiers
Answer: A
14) From among the following, identify the open source DBMS product. A) MySQL B) DB2 C) Access D) Oracle Database
Answer: A
18) Which of the following is a developmental task of database administration? A) creating and staffing the DBA function B) monitoring backup procedures C) conducting training for users D) managing configuration changes in systems
Answer: A
19) Identify the type of task that a database administrator is performing when validating the data model to be used in a database management system. A) development B) adaptation C) recovery D) operation
Answer: A
22) A ________ is a collection of forms, reports, queries, and programs that process a database. A) database application B) database design C) data field D) data model
Answer: A
26) Which of the following refers to the problem that exists in database applications when two users update the same data item, but only one of those changes is recorded? A) lost-update problem B) crow's-foot paradigm C) bullwhip effect D) update query problem
Answer: A
34) A data model is a ________. A) logical representation of database data B) repository of unprocessed data C) collection of isolated databases D) set of programs to retrieve data
Answer: A
4) The rows in a database are called ________. A) records B) tables C) files D) fields
Answer: A
47) ________ is the process of converting a data model into tables, relationships, and data constraints. A) Database design B) Database querying C) Data mining D) Database aggregation
Answer: A
50) In a database, when data items disagree with one another, this leads to a(n) ________. A) data integrity problem B) crow's-foot paradigm C) adaptation conflict D) lost-update problem
Answer: A
54) When using the relational model to represent data, one must ________. A) add a foreign key to one of the tables B) have more than ten tables in the model C) establish only N:M relationships between tables D) use metadata instead of foreign keys
Answer: A
57) Which of the following is a nonrelational data store developed by Facebook? A) Cassandra B) Dynamo C) Bigtable D) SharePoint
Answer: A
6) Which of the following data elements is placed higher than records in the data hierarchy? A) file B) field C) character D) byte
Answer: A
8) Albert creates a relational database to store employee performance statistics. He stores each employee's data in independent rows and creates a column named "Employee Number" to assign unique numbers to each employee. This column is referred to as a(n) ________. A) primary key B) identifier C) foreign key D) primary record
Answer: A
1) A(n) ________ is a self-describing collection of integrated records. A) cloud B) database C) storage folder D) application software
Answer: B
12) A(n) ________ is a program used to create, process, and administer a database. A) operating system B) DBMS C) KMS D) data mart
Answer: B
15) Which of the following is a valid observation of MySQL? A) It is offered by Oracle. B) It is license-free for most applications. C) It is a closed-source database product. D) It is yet to be widely adopted.
Answer: B
23) ________ forms are used to read, insert, modify, and delete data. A) Reporting B) Data entry C) Query D) Request
Answer: B
29) Which of the following is an example of an enterprise DBMS? A) Access B) SQL Server C) Paradox D) FoxPro
Answer: B
38) Each entity in a database has a unique attribute called a(n) ________. A) public key B) identifier C) foreign key D) index field
Answer: B
44) Constraints on the number of entities in a relationship are called ________ cardinalities. A) specific B) minimum C) primary D) critical
Answer: B
45) In an E-R diagram, a(n) ________ on a line means that at least one entity type of that type is required. A) small oval B) vertical bar C) arrow D) triangular block
Answer: B
49) ________ is the process of converting a poorly- structured table into two or more well-structured tables. A) Optimization B) Normalization C) Refactoring D) Standardization
Answer: B
5) The tables that appear in a database are known as ________. A) records B) files C) fields D) applications
Answer: B
51) A data integrity problem will occur only if ________. A) there are multiple administrators B) data are duplicated C) the database is very large D) there are complex relationships
Answer: B
52) Every table in a normalized database has a(n) ________. A) duplicated data model B) single theme C) maximum cardinality D) specialized query format
Answer: B
55) Which of the following is true about the database development process? A) The database structure cannot be changed during the data modeling stage. B) Changing a relationship from 1:N to N:M is simply a matter of changing the notations. C) User review of the data model is avoided as it is not helpful in data modeling. D) A database is a model of how the developers view their business world.
Answer: B
59) Which of the following is a nonrelational data store developed by Amazon? A) Cassandra B) Dynamo C) SharePoint D) Bigtable
Answer: B
9) Columns that belong to a different table than the one in which they reside are called ________. A) attributes B) foreign keys C) primary keys D) internal records
Answer: B
11) Metadata are ________. A) data stored on the main server B) error logs of databases C) data that describe data D) encrypted data transmissions
Answer: C
17) Which of the following is an international standard language for processing a database? A) Paradox B) DB2 C) SQL D) MS Access
Answer: C
2) Which of the following is the smallest data element in a database? A) field B) record C) byte D) file
Answer: C
24) A ________ is a request for data from a database. A) data entry B) reporting C) query D) command
Answer: C
28) An organization buys a proprietary database application to be used by a small workgroup of five people. This is an example of a(n) ________ DBMS. A) enterprise B) interenterprise C) personal D) open source
Answer: C
30) Which of the following types of DBMS products is designed for smaller and simpler database applications? A) object-oriented DBMS B) strategic DBMS C) personal DBMS D) enterprise DBMS
Answer: C
32) A ________ describes the data and relationships that will be stored in a database. A) data aggregator B) query model C) data model D) data application
Answer: C
33) An administrator should create a(n) ________ before developing a database design. A) data aggregator B) query model C) data model D) data application
Answer: C
35) In a data model, a(n) ________ is something that a user wants to track. A) record B) byte C) entity D) primary key
Answer: C
40) A line on an E-R diagram that indicates a 1:N relationship between two entities is referred to as ________. A) Kerberos B) maximum cardinality C) crow's feet D) minimum cardinality
Answer: C
42) A student management system allows students to have multiple majors and advisers are assigned to handle multiple students and courses. This is an example of a(n) ________ relationship. A) 1:N B) 1:1 C) N:M D) M:1
Answer: C
48) A database design team transforms entities into tables and expresses relationships by defining ________. A) cardinalities B) attributes C) foreign keys D) departments
Answer: C
56) ________ are the final judges as to what data the database should contain and how the records in that database should be related to one another. A) Administrators B) Developers C) Users D) Designers
Answer: C
13) Which of the following is an example of a database management system? A) MS Excel B) Unix C) Ubuntu D) Access
Answer: D
16) When you modify or delete data present in a database, you are ________. A) creating a new database B) forming a data model C) simplifying the data structure D) processing the database
Answer: D
20) The database administrator of an organization constantly manages the processing rights and responsibilities of employees. This is an example of a(n) ________ task. A) development B) recovery C) adaptation D) operational
Answer: D
21) Which of the following database administration tasks is related to adaptation? A) monitoring backup procedures B) conducting training for users C) monitoring database performance D) managing configuration changes in systems
Answer: D
25) Brenda, the sales manager of a firm, wants to generate a particular report containing sales analyses of the second and third quarter of the year. After accessing the DBMS, she should type the keyword into a ________ form to obtain the information that she wants. A) report B) reference C) data entry D) query
Answer: D
27) A(n) ________ DBMS is designed to process large organizational and workgroup databases. A) operational B) process C) personal D) enterprise
Answer: D
3) The columns in a database are called ________. A) records B) tables C) files D) fields
Answer: D
31) ________ is an example of a personal DBMS. A) SQL Server B) DB2 C) Oracle Database D) Access
Answer: D
36) Brad, a project manager, wants to build a database to integrate information about employees and tasks that they handle. Brad wants to track information such as task name, percentage completed, and employee name. These aspects that Brad wants to track are called ________. A) identifiers B) records C) primary keys D) entities
Answer: D
37) Entities in a data model have ________ that describe the characteristics of the entity. A) characters B) primary keys C) codes D) attributes
Answer: D
39) In an E-R diagram, a line between two entities represents a(n) ________. A) attribute B) identifier C) cardinality D) relationship
Answer: D
41) Which of the following is true of N:M relationships? A) The number of entities on each side must be equal. B) They are common examples of minimum cardinalities. C) They are also called one-to-many relationships. D) They can have more than one entity on each side of the relationship.
Answer: D
43) Minimum cardinalities in an E-R diagram refer to the minimum number of entities required in a(n) ________. A) department B) database C) attribute D) relationship
Answer: D
46) Which of the following formations on a line in an E-R diagram means that the relationship need not have an entity of that type? A) vertical bar B) arrow C) double line D) small oval
Answer: D
53) Identify the first step in transforming a data model into a relational database design. A) representing the data relationships B) normalizing the data and files C) creating foreign keys D) creating a table for each entity
Answer: D
58) Which of the following is a nonrelational data store developed by Google? A) Cassandra B) Dynamo C) SharePoint D) Bigtable
Answer: D