Com Ed 5 Prelim

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Com Ed 5 Prelim

  1. 1. JojiIlagan Career Center Foundation, Inc. PRILIM EXAMINATION College of Business and Tourism Com Ed 5–Database Management Gov. Chavez Street, Davao City Jeff Rey A. Comidoy – InstructorI. Choose the letter of the correct answer.1. It is a collection of data modelling a real world enterprise.. a. Database b. DBMS c. DBS d. Letters B and C2. It is the software package to store and manage data.. a. Database b. DBMS c. DBS d. Letters B and C3. It is the software to access and process the data. a. Application Programs b. Information System c. DBMS d. Database4. A combination of database, DBMS, and application programs is called… a. Application Programs b. Information System c. DBMS d. Database5. It is a collection of concepts for describing data. a. Data model b. Schema c. Relational Data Model d. None of the three6. Database software is called… a. Database b. DBMS c. DBS d. Letters B and C7. It is a collection of unprocessed items. a. Data b. Information c. Computer process d. None of the three8. It is data that is organized and meaning. a. Data b. Information c. Computer process d. None of the three9. It is the degree to which data is correct.. a. Data Integrity b. Garbage In c. Garbage Out d. GIGO10. Computer phrase that means you cannot create correct information from incorrect data. a. Data Integrity b. Garbage In c. Garbage Out d. GIGO11. What are the qualities of valuable information? a. Accurate b. Verifiable c. Timely d. All of the three12. It is the combination of one or more characters. a. Field b. Records c. Files d. Database13. It is the unique identifier of a field a. Field Name b. Field Size c. Data Type d. None of the three14. It defines the maximum number of characters a field can contain. a. Field Name b. Field Size c. Data Type d. None of the three15. It specifies the kind of data field contain. a. Field Name b. Field Size c. Data Type d. None of the three16. It is the smallest unit of data the user can access.. a. Field Name b. Field Size c. Data Type d. None of the three17. A data type that is also called alphanumeric that contain letters, numbers, or special characters. a. Text b. Numeric c. Currency d. Date18. A data type that is a dollar and cent amounts or numbers containing decimal values. a. Yes/No b. Numeric c. Currency d. Memo19. A data type that is also called Boolean, there are only two values that may be True or False. a. Yes/No b. Numeric c. Currency d. Memo20. A data type that has lengthy text entries. a. Yes/No b. Hyperlink c. Currency d. Memo21. A data type that is a web address that links to document or Web page a. Yes/No b. Hyperlink c. Object d. Memo22. A data type that is also called BLOB)—photograph, audio, video, or document created in other application. a. Yes/No b. Hyperlink c. Object d. Memo23. It is a group of related fields. a. Record b. File c. Field d. Database24. It uniquely identifies each record. a. primary key b. field c. file d. database25. It is a collection of related records stored on disk. a. primary key b. field c. file d. database26. Procedures that keep data current a. Adding records b. Changing records c. Deleting records d. All of the three27. Process of comparing data with a set of rules to find out if data is correct. a. Validation b. Redundancy c. Integrity d. None of the three1 | ComEd5|Prelim
  2. 2. 28. Strength of database approach…. a. Easier access b. Improved data integrity c. Shared data d. All of the three29. Popular database management systems (DBMS). a. MS Access b. Visual Basic 6 c. SQL Server d. All of the three30. Contains data about each file in database and each field within those files. a. Data dictionary b. Data integrity c. DBMS d. Data fileFor Test II and IIIA company has several departments. Each department has a supervisor and at least one employee. Employees mustbe assigned to at least one, but possibly more departments. At least one employee is assigned to a project, but anemployee may be on vacation and not assigned to any projects.II. Write the relationship matrix (table) that has rows and columns for each of the identified entities (10 pts.).III. Draw the Entity-Relationship Diagram of the above-mentioned example with cardinality and relationships (30 pts)IV. What is the meaning of the following cardinality constraints?2 | ComEd5|Prelim

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