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Question 81 Answer saved Marked out of 0,50 P Flag question ER model is a type of data models. O a. conceptual O b. hierarchical O c. physical O d. implementation Time left 1:28.03
Question 9 Not yet answered Marked out of 0.50 P Flag question Which is false? O a. O b. O c. Od. Database instance changes every time the database is updated. Data update is a database modification operation. Meta-data is the data about data. Database system is a collection of related data. Time left 1:27:48
Question 10 Not yet answered Marked out of 0.50 P Flag question Which is not a job of a DBA? O a. Authorizing access to the database Defining the database constraints O b. Oc. O d. Tuning the DBMS performance Acquiring software and hardware resources Time left 1:27:33
Question 11 Answer saved Marked out of 0.50 Flag question PREVIOUS PAGE In the three-tier client-server architecture, which tier is for application server? O a. Web server O b. database system Oc. None of the choices are correct O d. Web browser Time left 1:27:16 NEXT PAGE