CS 430 Database System Exam Practice Questions and Answers
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Course
2024/2025
Institution
2024/2025
CS 430 Database System Exam Practice
Questions and Answers
What are the data structures the storage manager implements as part of the physical system? - Ans:-
-Data files
-Data dictionary
-Indices
I've just added a new person to the Employee database and I did not have to alter my application...
T/F: Durability refers to the fact that values within a database must survive system failures. - Ans:✔✔-
True
T/F: The person that has central control over a DBMS is called a DataBase Administrator (DBA). -
Ans:✔✔-True
I've just changed the indexing scheme for a certain database. The change is transparent to the rest of the
database and other applications. This is an example of which type of abstraction? - Ans:✔✔-Physical
A data dictionary contains _____, data about data. - Ans:✔✔-metadata
A language in which a user specifies a database schema is called? - Ans:✔✔-a data definition language
In what phases does the design move from an abstract data mode to the design of the database? -
Ans:✔✔-Logical design phase and Physical design phase
What are the components of the query processor? - Ans:✔✔--DML compiler
-DDL interpreter
-Query evaluation engine
T/F: It is desirable for all users to see the entire logical model. - Ans:✔✔-False
T/F: Atomicity refers to the requirements that either all of a transaction must occur or none of it. -
Ans:✔✔-True
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