1An update anomaly occurs when:AA query is slowBA key is missingCThe same fact must be changed in many rowsDA table has no rowsView AnswerDiscussWorkspaceReportSaveEasy
3In R(A, B, C) with composite key (A, B) and dependency A → C, R violates:A1NFBNo normal formCOnly BCNFD2NFView AnswerDiscussWorkspaceReportSaveMedium
4In Student(roll_no, course_id, student_name, course_name) with key (roll_no, course_id), student_name depends only on roll_no. This violates:A2NFB1NFCBCNF onlyDNo normal formView AnswerDiscussWorkspaceReportSaveMedium
5Armstrong's axioms include reflexivity, augmentation and:ANegationBDistributionCCommutativityDTransitivityView AnswerDiscussWorkspaceReportSaveEasy