Test
CHAPTER 9: DATABASE DESIGN
Preguntas del test (61)
11. Systems analysis establishes the need for an information system and its extent
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22. The term “database development” is used to describe the process of database design and implementation.
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33. The primary objective in database design is to create complete, normalized, nonredundant, and fully integrated conceptual, logical, and physical database models.
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44. The implementation phase of database design includes creating the database storage structure and loading the database, but does not provide for data management.
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55. The Systems Development Life Cycle (SDLC) traces the history of an information system.
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66. The Systems Development Life Cycle (SDLC) provides the big picture within which the database design and application development can be mapped out and evaluated.
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77. The Systems Development Life Cycle (SDLC) is a sequential process rather than an iterative process.
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88. The Systems Development Life Cycle’s (SDLC’s) planning phase yields a general overview of the company and its objectives.
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99. 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.
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1010. In the Systems Development Life Cycle (SDLC), problems defined during the planning phase are examined in greater detail during the analysis phase.
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1111. The analysis phase of the Systems Development Life Cycle (SDLC) involves a cycle of coding, testing, and debugging.
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1212. In the Systems Development Life Cycle (SDLC), the design of the system’s processes begins in the detailed systems design phase.
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1313. 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.
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1414. Training principles and methodologies are planned during the implementation phase of the Systems Development Life Cycle (SDLC).
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1515. The detailed systems design 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.
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16. During the implementation 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.- AVerdadero
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1717. The database contents might be loaded interactively or in batch mode using a variety of methods and devices including customized user programs.
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1818. The system is subjected to exhaustive testing during the testing phase of the Systems Development Life Cycle (SDLC).
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1919. In the Systems Development Life Cycle (SDLC), after testing is concluded, end-user training is not necessary.
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2020. 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).
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2121. A system maintenance activity generated in response to changes in the business environment is referred to as corrective maintenance.
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2222. The overall purpose of the database initial study is to create the conceptual design.
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2323. To analyze the company situation, the database designer must discover what the company’s operational components are, how they function, and how they interact.
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2424. 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.
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2525. In most modern relational DBMSs, a new database implementation requires the creation of special storage-related constructs to house the end-user tables.
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2626. The assignment of access rights may restrict operations on predetermined objects such as databases, tables, views, queries, and reports.
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2727. Data integrity is enforced by the database management system (DBMS) through the proper use of primary and foreign key rules.
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2828. The testing and evaluation phase of the Database Life Cycle (DBLC) occurs after applications programming.
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2929. Database performance is one of the least important factors in all database implementations.
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3030. Evaluation of database performance is rendered easier by the fact there are no standards to measure it.
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31. The main purpose of a backup is to guarantee database restoration following a hardware or software failure.- AVerdadero
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3232. The database administrator must be prepared to perform routine maintenance activities within the database.
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3333. Physical design becomes simpler when data is distributed at different locations.
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3434. Decentralized design is typical of relatively simple, small databases and can be successfully done by a single person.
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3535. The process of creating an information system is known as .
- Aa. systems development
- Bb. database development
- Cc. network development
- Dd. enterprise development
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36. The traditional Systems Development Life Cycle (SDLC) is divided into phases.- Aa. two
- Bb. three
- Cc. four
- Dd. five
3737. Discovery of user requirements, existing system evaluation, and logical system design are part of the phase of the Systems Development Life Cycle (SDLC).
- Aa. planning
- Bb. analysis
- Cc. detailed systems design
- Dd. implementation
3838. Coding, testing, and debugging are part of the phase of the Systems Development Life Cycle (SDLC).
- Aa. planning
- Bb. analysis
- Cc. detailed systems design
- Dd. implementation
3939. “Should the existing system be replaced?” is a question that is asked during the stage of the Systems Development Life Cycle (SDLC).
- Aa. planning
- Bb. analysis
- Cc. implementation
- Dd. maintenance
4040. “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).
- Aa. planning
- Bb. analysis
- Cc. implementation
- Dd. maintenance
4141. The feasibility study during the planning phase of the Systems Development Life Cycle (SDLC) must address the:
- Aa. requirements of the current system’s end users.
- Bb. problems and constraints related to the company situation.
- Cc. questions about modification and replacement of existing system.
- Dd. technical aspects of hardware and software requirements.
4242. The logical systems design is created during the phase of the Systems Development Life Cycle (SDLC).
- Aa. planning
- Bb. analysis
- Cc. implementation
- Dd. maintenance
4343. The database contents are loaded during the phase of the Systems Development Life Cycle (SDLC).
- Aa. analysis
- Bb. detailed systems design
- Cc. implementation
- Dd. maintenance
4444. In DBLC, the phase after the database initial study is .
- Aa. operation
- Bb. database design
- Cc. database initial study
- Dd. implementation and loading
4545. The implementation of applications tends to prolong the operational life of systems by making them easier to update and maintain.
- Aa. database-produced
- Bb. network-produced
- Cc. CASE-produced
- Dd. design-produced
4646. The maintenance and evolution phase of the Database Life Cycle (DBLC) involves .
- Aa. defining objectives
- Bb. introducing changes
- Cc. testing the database
- Dd. installing the DBMS
4747. Selecting database management system (DBMS) software is part of the phase of the Database Life Cycle (DBLC).
- Aa. database initial study
- Bb. database design
- Cc. implementation and loading
- Dd. testing and evaluation
4848. Producing the required information flow is part of the phase of the Database Life Cycle (DBLC).
- Aa. database initial study
- Bb. database design
- Cc. operation
- Dd. testing and evaluation
4949. is a technique that creates logical representations of computing resources that are independent of the underlying physical computing resources.
- Aa. Normalization
- Bb. Virtualization
- Cc. Specialization
- Dd. Generalization
5050. The implementation and loading phase of the Database Life Cycle (DBLC) involves .
- Aa. defining objectives
- Bb. introducing changes
- Cc. testing the database
- Dd. installing the DBMS
5151. In the context of the database design process, the conceptual design step that defines the fragmentation and allocation strategy is .
- Aa. Database analysis and requirements
- Bb. ER modeling and normalization
- Cc. data model verification
- Dd. distributed database design
5252. In the context of the database design process, the conceptual design step that determines end-user views, outputs, and transaction-processing requirements is .
- Aa. Data analysis and requirements
- Bb. entity relationship modeling and normalization
- Cc. data model verification
- Dd. distributed data design
5353. can render data useless to unauthorized users who might have violated some of the database security layers.
- Aa. Data encryption
- Bb. Access rights
- Cc. Physical security
- Dd. Password security
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54. Once the data has been loaded into the database, the tests and fine-tunes the database for performance, integrity, concurrent access, and security constraints.- Aa. programmer
- Bb. manager
- Cc. database administrator
- Dd. systems administrator
5555. In a(n) , only the objects that have been updated or modified since the last full backup are backed up.
- Aa. transaction log backup
- Bb. conservative backup
- Cc. differential backup
- Dd. adaptive backup
5656. Which of the following is a hardware-induced database failure?
- Aa. memory chip errors
- Bb. viruses
- Cc. malware
- Dd. abortion due to deadlock
5757. The last step in the Database Life Cycle (DBLC) is .
- Aa. maintenance and evolution
- Bb. operation
- Cc. testing and evaluation
- Dd. implementation and loading
5858. The first step in developing the conceptual model using ER diagrams is to .
- Aa. normalize the entities
- Bb. complete the initial ER diagram
- Cc. identify, analyze, and refine the business rules
- Dd. define the attributes, primary keys, and foreign keys for each of the entities
5959. The first step in the ER model verification process is to .
- Aa. identify each module and its components
- Bb. identify the ER model’s central entity
- Cc. verify all processes against the ER model
- Dd. identify each module’s internal transaction requirements
6060. is the process of determining the data storage organization and data access characteristics of the database to ensure its integrity, security, and performance.
- Aa. Conceptual design
- Bb. Network design
- Cc. Logical design
- Dd. Physical design
6161. During decentralized design, after the has been completed, all modules are integrated into one conceptual model.
- Aa. declaration process
- Bb. verification process
- Cc. conceptual process
- Dd. logical process
Información
- Descripción
- CIS 3365 Test sobre CHAPTER 9: DATABASE DESIGN, creado por Miguel Lucero el 05/04/2017.
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- Miguel Lucero
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