MC Statement A: The Query Parser optimizes and simplifies a query and then passes it on to the Query Executor.
Statement B: In the DBMS architecture, the Storage Manager takes care of concurrency control.
Which sentence(s) is/are correct? A and B incorrect Neither A or B incorrect Only A incorrect Only B correct
MC Statement A: The DDL compiler compiles data definitions specified in DDL. It is possible that there is only 1 DDL with 3 instruction sets.
Statement B: The first step of the DDL compiler is to translate the DDL definitions.
Which sentence(s) is/are right? Only B incorrect A and B incorrect Neither A or B incorrect Only A correct
MC CODASYL is an example of... A Relational DBMS incorrect A Network DBMS correct A Hierarchical DBMS incorrect An Object-Oriented DBMS incorrect
MC Complete the following sentence, choosing the right words on place A and B.
When during crash recovery, aborted transactions need to be undone, that is a task of the ...A...
The part of the Storage manager that guarantees the ACID properties is the ...B... A: Lock manager, B: Lock manager incorrect A: Lock manager, B: Recovery manager incorrect A: Recovery manager, B: Buffer manager incorrect A: Recovery manager, B: Transaction manager correct
MC Statement A: There is no query processor available in procedural DML.
Statement B: With procedural DML, the DBMS determines the access path and navigational strategy to locate and modify the data specified in the query.
Which sentence(s) is/are right? A and B incorrect Only B incorrect Neither A or B incorrect Only A correct
MC Statement A: In a Hierarchical DBMS, DML is declarative and set oriented with a query processor.
Statement B: In a relational DBMS, there is data independence between the conceptual and internal data model.
Which statement(s) is/are correct? A and B incorrect Only A incorrect Neither A or B incorrect Only B correct
MC Which of the following DBMS types is not a classification based on a data model? Object-Relational DBMS incorrect Network DBMS incorrect Cloud DBMS correct Hierarchical DBMS incorrect
MC Statement A: The impedance mismatch problem can be solved by using middleware to map data structures between the DBMS and the DDL statements.
Statement B: An object-oriented host language such as Java combined with a document-oriented DBMS such as MongoDB does not require mapping objects to documents and vice versa.
Which sentence(s) is/are correct? Neither A or B correct Only A incorrect A and B incorrect Only B incorrect
MC Statement A: The DDL compiler compiles data definitions specified in DDL. It is possible that there is only 1 DDL with 3 instruction sets.
Statement B: The first step of the DDL compiler is to translate the DDL definitions.
Which sentence(s) is/are right? Only B incorrect Only A correct Neither A or B incorrect A and B incorrect
MC Statement A: There is no query processor available in procedural DML.
Statement B: With procedural DML, the DBMS determines the access path and navigational strategy to locate and modify the data specified in the query.
Which sentence(s) is/are right? A and B incorrect Only B incorrect Neither A or B incorrect Only A correct