1 Program Data Independence refers to [Choose ALL that apply] both plocal data independence and logical data independence the ability to change data without having to entirely change programs entirely, and vice versa Only the ability to change the physical schema without having to change anything in the logical schema Only the ability to change the internal schema without having to change anything in the external schema 2 What is TRUE about 2-Tier and 3-Ter Architecture Select ALL that apply Tier Architecture is easy to develop-3 Tier Architecture is easier to develop-2 Tier Architecture is easier to maintain-3 Tier Architecture easier to maintain-20 Database: Huge collection of logically related data organized using Tables sas Functions as Relations using a Data Model The relationship between Database Schema and Instance can be compared with the following relationship The relationship between Database and Flat File The relationship between Data Type and Variable The relationship between Function and Relation The relationship between Data Structure and Record 5 External Schema represents the following Opposite of internal Schema User or a group of users' view of data Logical view of database Physical organization of data on external disk or storage media 6 Match the following problems use cases with the most appropriate data models Multimedia content Satelit Sensor data ato Object-Oriented Data Model Graph Model B Relational Data Model.C Tree Model. E-Commerce XML data such as Amazon and Ebay et Registration System HR Management, Inventory Management, etc Secal Media Network Analysis. Alrlines or Logistic Network Scheduling 7 Graph, Tree and Reational data model.all can be defined using the following basic mathematical concept List Array O Sequence o Seto 8 The Conceptual or Logical design of a database is independent of Select all that apply! Hardware Architecture Software Platform Data Model None of the above Unlike Database, Flat Ple has the following disadvantages (Select ALL that apply a single repository of data but difficult to share among many users and programs concurrently high consistency pour access control and privacy low redundancy