2.1 INTRODUCTION2.2 SCHEMAS, SUBSCHEMA AND INSTANCES2.3 THREE-LEVEL ANSI-SPARC DATA BASE ARCHITECTURE2.4 DATA INDEPENDENCE2.5 MAPPINGS2.6 STRUCTURE, COMPONENTS, AND FUNCTIONS OF DBMS2.7 DATA MODELS2.8 TYPES OF DATABASE SYSTEMSREVIEW QUESTIONSSTATE TRUE/FALSETICK (√) THE APPROPRIATE ANSWERFILL IN THE BLANKS