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Database Management System (DBMS) Practice Test: All Topics
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Avg score: 25% Most missed: “……………..specifies a search condition for a group or an aggregate.”
A DBMS (Database Management System) is a software application that helps create and manage databases. Popular DBMS are MySQL, Oracle, MongoDB, etc.  The sum total of the database, the DBMS and the associated applications can be referred to as a database system. Often the term "database" is also used loosely to refer to any of the DBMS, the database system or an application associated with the database. Existing DBMSs provide various functions that allow management of a database and its data which can be classified into four main functional groups: Data definition – Creation, modification... Show more
Database Management System (DBMS) Practice Test: All Topics
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25 Questions

1. A deadlock exists in the system if and only if the wait-for graph contains a _____________
2. Which level of RAID refers to disk mirroring with block striping?
3. The command _____________ _____________ such tables are available only within the transaction executing the query and are dropped when the transaction finishes.
4. ____ ensures that once transaction changes are done, they cannot be undone or lost, even in the event of a system failure.
5. Which is the transformation of requests and results between different levels of abstraction:
6. A special redo-only log record < Ti, Xj, V1> is written to the log, where V1 is the value being restored to data item Xj during the rollback. These log records are sometimes called
7. …………….. is the complex search criteria in the where clause.
8. VPD provides authorization at the level of specific tuples, or rows, of a relation, and is therefore said to be a _____________............. mechanism.
9. An _____________ consists of a search-key value and pointers to one or more records with that value as their search-key value.
10. Relational schemas and other metadata about relations are stored in a structure called the _____________.............
11. Which is the process of breaking a relation into multiple relations:
12. The RAID level which mirroring is done along with stripping is
13. Which of the following requires no password travel across the internet?
14. The DBMS acts as an interface between what two components of an enterprise-class database system?
15. The space factor when determining the effciency of an algorithm is measured by
16. _____________ express the number of entities to which another entity can be associated via a relationship set.
17. A unit of storage that can store one or more records in a hash file organization is denoted as
18. Transaction processing is associated with everything below except
19. Data is:
20. Key to represent relationship between tables is called
21. Who developed the normalization process:
22. PJNF stands form:
23. Which of the following is an attribute that can uniquely identify a row in a table?
24. Which one of the following is the right syntax for DECODE?
25. A dependency exist between two columns when