Question 1: A table has 7 records and 4 columns. How many data items does the table have? (A) 74=28 (B) 74=3 (C) 7+4=11 Question 2: Which service a DBMS software does not provide? (A) Accepting queries from the users (B) Performing updates (C) Creating a conceptual model (D) Managing concurrent use of data (E) Hiding parts of the data that users should not access to (F) Setting up storage structures Question 3: What option is correct? (A) Physical data independence ensures that external views are not impacted by changes in the logical level. (B) Logical data independence ensures that logical model is not impacted by changes made to the internal level. (C) Logical data independence and physical data independence are among the advantages of three-level architecture. (D) All of the above options are incorrect. Question 4: Which one of the below options is correct about the following table: (A) This is a table of a relational database and has 15 data items. (B) This is a table of a relational database and has 13 data items. (C) This is a table of a relational database and has 3 columns. (D) This is a table of a relational database and has 5 records. (E) Non of the above options is correct