IS Chapter 9

The database contents might be loaded interactively or in batch mode using a variety of methods and devices including customized user programs. (T/F)

T

The primary objective in database design is to create complete, normalized, nonredundant, and fully integrated conceptual, logical, and physical database models. (T/F)

T

The term "database development" is used to describe the process of database design and implementation. (T/F)

T

"Should the existing system be replaced?" is a question that is asked during the _____ stage of the Systems Development Life Cycle (SDLC). a. planning b. analysis c. implementation d. maintenance

a

In the context of the database design process, the conceptual design step that determines end-user views, outputs, and transaction-processing requirements is _____. a. data analysis and requirements b. entity relationship modeling and normalization c. data model verification d. distributed database design

a

The last step in the Database Life Cycle (DBLC) is _____. a. maintenance and evolution b. operation c. testing and evaluation d. implementation and loading

a

The process of creating an information system is known as _____. a. systems development b. database development c. network development d. enterprise development

a

The result of the _____ 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. analysis b. implementation c. detailed systems design d. maintenance

a

Which of the following is a hardware-induced database failure? a. Memory chip errors b. Viruses c. Malware d. Abortion due to deadlock

a

_____ can render data useless to unauthorized users who might have violated some of the database security layers. a. Data encryption b. Access rights c. Physical security d. Password security

a

A system maintenance activity generated in response to changes in the business environment is referred to as corrective maintenance. (T/F)

F

Evaluation of database performance is rendered easier by the fact there are no standards to measure it. (T/F)

F

In the Systems Development Life Cycle(SDLC), the design of the system's processes begins in the detailed systems design phase. (T/F)

F

The Systems Development Life Cycle (SDLC) is a sequential process rather than an iterative process. (T/F)

F

The analysis phase of the Systems Development Life Cycle (SDLC) involves a cycle of coding, testing, and debugging. (T/F)

F

The implementation phase of database design includes creating the database storage structure and loading the database, but does not provide for data management. (T/F)

F

The overall purpose of the database initial study is to create the conceptual design. (T/F)

F

The testing and evaluation phase of the Database Life Cycle (DBLC) occurs after applications programming. (T/F)

F

A system is always at some stage of SDLC because every request for structural changes requires retracing the steps of the Systems Development Life Cycle (SDLC). (T/F)

T

After the initial declarations in Database Life Cycle (DBLC), the database designer must carefully probe in order to generate additional information that will help define the problem within the larger framework of company operations. (T/F)

T

Data integrity is enforced by the database management system (DBMS) through the proper use of primary and foreign key rules. (T/F)

T

In most modern relational DBMSs, a new database implementation requires the creation of special storage-related constructs to house the end-user tables. (T/F)

T

In the Systems Development Life Cycle (SDLC), problems defined during the planning phase are examined in greater detail during the analysis phase. (T/F)

T

In the detailed systems design phase of the Systems Development Life Cycle (SDLC), steps are laid out for the conversion of a database from an old system to a new system. (T/F)

T

Systems analysis establishes the need for an information system and its extent. (T/F)

T

The Systems Development Life Cycle (SDLC) traces the history of an information system (T/F)

T

The Systems Development Life Cycle's (SDLC's) planning phase yields a general overview of the company and its objectives. (T/F)

T

"What are the requirements of the current system's end users?" is a question asked during the _____ phase of the Systems Development Life Cycle (SDLC). a. planning b. analysis c. implementation d. maintenance

b

Discovery of user requirements, existing system evaluation, and logical system design are part of the _____ phase of the Systems Development Life Cycle (SDLC). a. planning b. analysis c. detailed systems design d. implementation

b

During decentralized design, after the _____ has been completed, all modules are integrated into one conceptual model. a. declaration process b. verification process c. conceptual process d. logical process

b

In DBLC, the phase after the database initial study is _____. a. operation b. database design c. database initial study d. implementation and loading

b

Selecting database management system (DBMS) software is part of the _____ phase of the Database Life Cycle (DBLC). a. database initial study b. database design c. implementation and loading d. testing and evaluation

b

The first step in the ER model verification process is to _____. a. identify each module and its components b. identify the ER model's central entity c. verify all processes against the ER model d. identify each module's internal transaction requirements

b

The logical systems design is created during the _____ phase of the Systems Development Life Cycle (SDLC). a. planning b. analysis c. implementation d. maintenance

b

The maintenance and evolution phase of the Database Life Cycle (DBLC) involves _____. a. defining objectives b. introducing changes c. testing the database d. installing the DBMS

b

_____ is a technique that creates logical representations of computing resources that are independent of the underlying physical computing resources. a. Normalization b. Virtualization c. Specialization d. Generalization

b

In a(n) _____, only the objects that have been updated or modified since the last full backup are backed up. a. transaction log backup b. conservative backup c. differential backup d. adaptive backup

c

Once the data has been loaded into the database, the _____ tests and fine-tunes the database for performance, integrity, concurrent access, and security constraints. a. programmer b. manager c. database administrator d. systems administrator

c

Producing the required information flow is part of the _____ phase of the Database Life Cycle (DBLC). a. database initial study b. database design c. operation d. testing and evaluation

c

The _____ phase of the Systems Development Life Cycle (SDLC) includes all the necessary technical specifications for the screens, menus, reports, and other devices used to make the system more efficient. a. analysis b. implementation c. detailed systems design d. maintenance

c

The database contents are loaded during the _____ phase of the Systems Development Life Cycle (SDLC). a. analysis b. detailed systems design c. implementation d. maintenance

c

The first step in developing the conceptual model using ER diagrams is to _____. a. normalize the entities b. complete the initial ER diagram c. identify, analyze, and refine the business rules d. define the attributes, primary keys, and foreign keys for each of the entities

c

The implementation of _____ applications tends to prolong the operational life of systems by making them easier to update and maintain. a. database-produced b. network-produced c. CASE-produced d. design-produced

c

Coding, testing, and debugging are part of the _____ phase of the Systems Development Life Cycle (SDLC). a. planning b. analysis c. detailed systems design d. implementation

d

During the _____ phase of the Systems Development Life Cycle (SDLC), the hardware, database management system (DBMS) software, and application programs are installed, and the database design is implemented. a. detailed systems design b. analysis c. maintenance d. implementation

d

In the context of the database design process, the conceptual design step that defines the fragmentation and allocation strategy is _____. a. database analysis and requirements b. ER modeling and normalization c. data model verification d. distributed database design

d

The implementation and loading phase of the Database Life Cycle (DBLC) involves _____. a. defining objectives b. introducing changes c. testing the database d. installing the DBMS

d

The traditional Systems Development Life Cycle (SDLC) is divided into _____ phases. a.two b.three c.four d.five

d

Training principles and methodologies are planned during the _____ phase of the Systems Development Life Cycle (SDLC). a. maintenance b. implementation c. analysis d. detailed systems design

d

_____ is the process of determining the data storage organization and data access characteristics of the database to ensure its integrity, security, and performance. a. Conceptual design b. Network design c. Logical design d. Physical design

d