26) The columns in a database are called a. records b. tables c. files d. fields

Question

26) The columns in a database are called a. records b. tables c. files d. fields 27) A primary key used in a database is a a. group of rows that are formed to identify a unique table or file b. column or group of columns that identifies a unique row in a table c. character or byte that represents fields or columns d. group of tables or files formed to identify a unique field or row 28) Which of the following is an international standard language for processing a database? a. Paradox b. DB2 c. SQL d. MS Access 29) Identify the type of task that a database administrator is performing when she is creating the data model to be used in a database management system. a. development b. adaptation c. recovery d. operation 30) forms are used to read, insert, modify, and delete data. a. Reporting b. Data entry c. Query d. Request 31) Which of the following refers to the problem that exists in database applications when two users update the same data item, but only one of those changes is recorded? a. lost-update problem b. crow's-foot paradignm c. bullwhip effect d. large query problem 32) Companies buy and sell your data so they can a. Market products to you in a targeted way b. Know what you are up to on a daily basis c. Make sure you are ethical before selling to you d. Check for ethical behavior of employees 33) To normalize a database, you need to a. make sure the data is accurate b. ensure each table has only one entity in it c. ensure that only normal people are in the database d. normalize the computer system the database runs on End of EXAM

Explanation / Answer

26. a.records
27. b.column or group of columns that identifies a unique row in a table
28. c. SQL
29. a. development
30. b. Data entry
31. a. lost-update problem
32. a. Market products to you in a targeted way
33. a. make sure the data is accurate

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