Database Environment and Development Process PDF

Summary

This document contains a set of questions and answers related to database management systems. The questions cover topics such as database design, data modeling, relationships between data entities, and other database concepts.

Full Transcript

**The Database Environment and Development Process** 1\) A database is an organized collection of \_\_\_\_\_\_\_\_ related data. **A) logically** B\) physically C\) loosely D\) badly 2\) Older systems that often contain data of poor quality are called \_\_\_\_\_\_\_\_ systems. A\) controlled...

**The Database Environment and Development Process** 1\) A database is an organized collection of \_\_\_\_\_\_\_\_ related data. **A) logically** B\) physically C\) loosely D\) badly 2\) Older systems that often contain data of poor quality are called \_\_\_\_\_\_\_\_ systems. A\) controlled **B) legacy** C\) database D\) mainframe 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. 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. 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. 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 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.** 8\) Data that describe the properties of other data are: A\) relationships. B\) logical. C\) physical. **D) metadata.** 9\) All of the following are properties of metadata EXCEPT: A\) data definitions. **B) processing logic.** C\) rules or constraints. D\) data structures. 10\) A person, place, object, event, or concept about which the organization wishes to maintain data is called a(n): A\) relationship. B\) object. C\) attribute. **D) entity.** 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 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.** 13\) With the database approach, data descriptions are stored in a central location known as a: A\) server. B\) mainframe. C\) PC. **D) repository.** 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. 15\) Which organizational function should set database standards? A\) Management B\) Application development C\) Technical services **D) Database Administration** 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 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 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.** 19\) A rule that CANNOT be violated by database users is called a: A\) password. **B) constraint.** C\) program. D\) view. 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. 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 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. 25\) A workgroup database is stored on a central device called a: A\) client. **B) server.** C\) remote PC. D\) network. 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 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 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 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** 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. 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 36\) The SDLC phase in which database processing programs are created is the \_\_\_\_\_\_\_\_ phase. A\) planning B\) design C\) analysis **D) implementation** 38\) Organizing the database in computer disk storage is done in the \_\_\_\_\_\_\_\_ phase. **A) design** B\) maintenance C\) analysis D\) implementation 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** 43\) The three-schema approach includes which of the following schemas? **A) Internal** B\) Logical C\) Cross-functional D\) Dissecting 45\) \_\_\_\_\_\_\_\_ is the most popular RDMS data model notation. **A) ERD** B\) END C\) DRE D\) RED

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