www.usefuldesk.com Tamilnadu 12th Computer Science Lesson 11 – One Marks Choose the correct answer: 1. What is the acronym of DBMS? A. Database management symbol B. Database managing system C. Database management system D. Databasic management system ANSWER: C 2. A table is known as A. Tuple B. Attribute C. Relation D. Entity ANSWER: C 3. Which database model represents parent child relationship? A. Relational B. Network C. Hierarchical D. Object ANSWER: C 4. Relational database model was first proposed by A. E F Codd B. E E Codd C. E F Cadd D. E F Codder ANSWER: A 5. What type of relationship does hierarchical model represents? A. one to one B. one to many C. Many to one D. many to many ANSWER: B 6. Who is called Father of Relational Database from the following? A. Chris Date B. Hugh Darween C. Edgar Frank Codd Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com D. Edgar Frank Cadd ANSWER: C 7. Which of the following is an RDBMS? A. Dbase B. Foxpro C. Microsoft Access D. SQLite ANSWER: D 8. A tuple is also known as A. Table B. Row C. Attribute D. Field ANSWER: B 9. Who developed ER model? A. Chen B. EF Codd C. Chend D. Chand ANSWER: A Additional One Word: 1. Which of the following is an organized collection of data? A. Word Processor B. Spreadsheet C. Programming language D. Database ANSWER: D 2. Which of the following is an organized collection of data, which can be stored and a cersed through computer system. A. Database B. Worksheet C. DBMS D. Information ANSWER: A 3. Which of the following a data contain? A. Character Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com B. Text C. Word D. Number ANSWER: C 4. In which of the following data organized in a way that, it can be easily accessed, managed and updated? A. Database B. DBMS C. Structure D. Object ANSWER: A 5. Which of the following can be a software or hardware based, with one sole purpose of storing data? A. DBMS B. Database C. Object D. SQL ANSWER: B 6. Expand DBMS A. Database memory system B. Digital based management source C. Database management system D. Digital database management system ANSWER: C 7. Which of the following allows users to store, process and analyze data easily? A. My SQL B. Relational Algebra C. Datamodels D. DBMS ANSWER: D 8. Which of the following provided an interface to perform various operations to create a database, storing and updating data? A. SQL B. DBA C. DBMS D. Algebra ANSWER: C Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com 9. Which of the following provides protection and security to the databases? A. My SQL B. DBMS C. Oracle D. CSV ANSWER: B 10. Which of the following is not an example of DBMS? A. Foxpro B. Dbase C. COBOL D. Ms Access ANSWER: C 11. Which of the following makes the data more meaningful and connected in the database? A. Information B. Security C. Relationship D. Data models ANSWER: C 12. Which of the following divides the data in such a way that repetition of data is minimum in the database? A. Segregation B. Normalisation C. Integrity D. Consistency ANSWER: B 13. Which of the following characteristics of DBMS become a challenge? A. Data redundancy B. Data security C. Data consistency D. Data integrity ANSWER: C 14. How many major components are there in DBMS? A. 5 B. 4 C. 3 D. 2 ANSWER: A Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com 15. Which of the following is not a DBMS component? A. Hardware / Square B. Data C. Procedures D. Data model ANSWER: D 16. Which of the following DBMS components controls everything in a database? A. Hardware B. Square C. Methods D. Procedures ANSWER: B 17. Which of the following DBMS components that manage databases to take backups, report generation? A. Square B. Hardware C. Data D. Procedures ANSWER: D 18. Which of the following used to write commands to update and delete data stored in database? A. Procedures B. Methods C. Database Access Language D. Hardware / Software ANSWER: C 19. Each row in a table represents a A. Fields B. Record C. Data D. File ANSWER: B 20. Which of the following in a table represents a record? A. Row B. Column C. File D. Data ANSWER: A Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com 21. Which of the following in a table represents a column? A. Row B. Column C. Data D. Files ANSWER: B 22. Which of the following groups data among records specific categories or types of data? A. Table B. File C. Field D. Relation ANSWER: C 23. How the data can be represented and accessed from a software after complete implementation described by A. Data model B. Data implementation C. Data redundancy D. Data integrity ANSWER: A 24. Which of the following is a simple abstraction of complex real world data gathering environment? A. Data redundancy B. Data consistency C. Data abstraction D. Data model ANSWER: D 25. How many types of data models are there? A. 4 B. 3 C. 5 D. 7 ANSWER: C 26. Which of the following is not a type of data model? A. Hierarchical model B. Entity Relationship model C. Object model Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com D. Redundancy model ANSWER: D 27. Which of the following model was developed by IBM? A. ER Model B. Hierarchical model C. Network database model D. Object model ANSWER: B 28. IBM developed Hierarchical model as A. Data management system B. Information Hierarchical system C. Information management system D. Information model system ANSWER: C 29. In which data model, data is represented as a simple tree like structure form? A. Hierarchical model B. Network database C. ER model D. Relational model ANSWER: A 30. Which of the following data model is mainly used in IBM main frame computers? A. ER model B. Hierarchical C. Object D. Relational ANSWER: B 31. In which year Relational Database model was first purposed? A. 1960 B. 1964 C. 1974 D. 1970 ANSWER: D 32. The basic structure of data in relational model is A. Tables B. Rows C. Columns Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com D. Tuples ANSWER: A 33. Which of the following is the most data model used for data base appreciation? A. ER Model B. Hierarchical C. Relational D. Table ANSWER: C 34. Which of the following data base model is an extended form of hierarchical data model? A. ER Model B. Network C. Object D. Relational ANSWER: B 35. Network database model represents the data in which of the relationships? A. one to one B. one to many C. Many to many D. many to one ANSWER: C 36. Which data model is easier and faster in accessing the data? A. Relational B. Network C. ER Model D. All the above ANSWER: B 37. In which database mode, the relationship are created by dividing the object into entity? A. ER model B. Object C. Hierarchical D. Network ANSWER: A 38. ER model was developed in the year A. 1970 B. 1974 C. 1976 Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com D. 1978 ANSWER: C 39. Which of the following database model is useful in developing a conceptual design for the database? A. Hierarchical B. Object C. Relational D. ER model ANSWER: D 40. Which database model is simple and easy to design logical view of data? A. Hierarchical B. ER model C. Network D. Object ANSWER: B 41. Which of the following data model stores the data in the form of attributes and methods? A. Relational B. Object C. ER model D. All of these ANSWER: D 42. Object model stores the data in the form of A. Objects B. Attributes and methods C. Classes and inheritance D. All of these ANSWER: D 43. GIS expansion is A. Geographic information system B. Global information system C. Global information source D. Geographic intelligent system ANSWER: A 44. Which of the following data model handles geographic information system? A. Object Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com B. ER model C. Relational D. None of these ANSWER: A 45. Which data model used in file management system? A. ER model B. Relational C. Hierarchical D. None of these ANSWER: D 46. How many types of DBMS users are there? A. 2 B. 3 C. 4 D. 5 ANSWER: C 47. DBA expansion is A. Data Base Analys B. Data base administrators C. Digital bound administrations D. Database analyser ANSWER: B 48. Who takes care of the security of DBMS? A. DBA B. End user C. Software developer D. DB designer ANSWER: A 49. who manages the complete database management system? A. End user B. DBA C. DB designer D. Software Developer ANSWER: B 50. Who are the one responsible for identifying the data to be stored in the data base? A. DBA Website: www.usefuldesk.comFacebook: www.facebook.com/usefuldeskE-mail: [email protected] www.usefuldesk.com B. Application programmers C. End user D. Database designers ANSWER: D 51. RDBMS expansion is A. Redundancy Database management system B.