Question: A. Database B. Data C. Mini-world D. Database System 2. A data model consists of notations for expressing A. Data structures B. Integrity constraints C.

A. Database B. Data C. Mini-world D. Database System 2. A data model consists of notations for expressing A. Data structures B. Integrity constraints C. Operations D. All of the above 3. in data model support change and retrieval of data. A. Data structures B. Operations C. Integrity constraints D. None of the above 4. Keys are uniqueness constraints inside a data model which means that all the key values. A. True B. False Figure 1 represents in ER model. A. An entity type B. Composite attribute C. Relationship D. Multivalued attribute The difference between distributed database and multi-databases is that database is shared whereas in multi-database not shared. A. External schema B. Conceptual schema C. Operating systems D. None of the above Which type of the parallel database from the following offers highest effici the same time? A. Parallel database with shared memory B. Parallel database with shared disk C. Parallel database with nothing shared D. None of the above elect the correct answer for below 10 questions. pene part of the real world about which dats is seeed in a dustabas is callof A. Database B. Data C. Minj-world D. Database Systera data model consiats of notations for expeasing A. Data structures B. Integrity constraints C. Operations D. All of the above in dats model support change and setrinal of duts. A. DaEa structures B. Operations C. Integrity cotstraints D. None of the above s are uniqueness constraints inside a data model which means that all the instances have a unique values. A. True B. False igure 1 represents in ER model. A. An entity type B. Composite attribute C. Relationship D. Multivalued attribute ef difference between distributed databaxe and multi-datahases is that in distributed tabase is shared whereas in malti-databse nok shared. A. Exicrnal ochema B. Conceptual schema C. Operatiag systems D. None of the above aich type of the parallel databse from the following offers highest efficiency but is more costly 3 same time? A. Parallel database with shared metbory B. Parallel database with shared disk C. Parallel database with nothing shared D. Nose of the above

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