Preparing for an exam can be a daunting task, especially when it comes to subjects like Database Management Systems (DBMS). To ensure success, students often seek additional resources such as multiple-choice questions with answers that provide a comprehensive understanding of the topic.
If you are one of those students who is currently on the hunt for DBMS multiple-choice questions with answers in a convenient PDF format and free of cost, then you have arrived at the right place.
In this article, we will explore the importance of practice questions and where to find reliable resources that can assist you in your exam preparation journey.
DBMS multiple choice questions with answers pdf free download
1. Data independence is usually considered from ___ points of view.
Ans. data item
2. ___ data independence allows changes in the physical storage devices.
Ans. Universe of Discourse
3. ___ data independence implies that application programs need not be changed if fields are added to an existing record.
4. Logical data independence is more ___ to achieve than physical independence.
Ans. database system
5. ___ were among the first to use databases in a geographically distributed manner.
6. Web accesses may be stored in a ___.
7. The ___ machines came along and let users interact directly with databases.
Ans. Automated teller
8. In ___ database is used for keeping records of calls made, generating monthly bills, maintaining balances on prepaid calling cards, and storing information about the communication networks.
9. Data independence is usually considered from ___ points of view.
10. The ___ is one part of the conceptual design process.
Ans. data model
11. ___ data independence allows changes in physical storage devices.
12. Data modelling is preceded by ___ and analysis.
13. The E-R data model based on a perception of the real-world that consists of a set of basic objects called ___.
14. A particular occurrence of an entity is called an entity ___.
15. An entity in A is associated with at most one entity in B, and an entity B is associated with at most one entity in A, this type of relationship is ___.
16. In one-to-many relationships, an entity in A is associated with any number of entities in B. An entity in B, however, can be associated with at most ___ entity in A.
17. The database administrator is the focus of the ___ control.
18. ___ data independence implies that application programs need not be changed if fields are added to an existing record.
19. Logical data independence is more ___ to achieve than physical independence.
20. Any redundancies that exist in the DBMS are controlled and the system ensures that these multiple copies are ___.
21. Relational/SQL data is ___ to query than hierarchical, CODASYL, or some other model.
22. The relational model is based on ___ its accuracy and usefulness as a basis in mathematics.
Ans. set theory
23. ___ means that the data contained in the database is both accurate and consistent.
Ans. Data integrity
24. Data is of ___ importance to an organization and may be confidential.
25. A significant disadvantage of the DBMS system is ___.
26. The physical database is the data that is stored on ___ storage devices
27. The overall design of the database is called the ___ schema.
28. In general, the database system supports one physical schema, one conceptual schema and several ___.
29. The highest level of abstraction as seen by a user is called ___view.
30. ___ level describes what data are actually stored in the database.
31. The MySQL architecture consists of ___ primary subsystems.
32. The ___ decomposes the SQL commands it receives from calling programs into a form that can be understood by the MySQL engine.
Ans. Syntax Parser
33. The ___ interfaces with the operating system (OS) to write data to the disk efficiently.
Ans. Storage Manager
34. Buffer manager subsystem handles all memory management issues between requests for data by the ___ and the Storage Manager.
Ans. Query Engine
35. Each transactional table handler implements its own ___ to handle all locking and concurrency needs.
Ans. Transaction Manager
36. There is only ___ conceptual schema per database.
37. ___ systems must be capable of handling thousands of orders placed at the same time.
Ans. Online Transaction Processing (OLTP)
38. In ___ the data storage mechanism must be transparent to the users who purchase the application.
Ans. Independent Software Vendors (ISVs)
39. Oracle 9i Database product is made up ___ main components.
40. The ___ consists of physical files and memory components.
Ans. Oracle server
41. DBMS provide a facility known as the ___, which can be used to define the conceptual schema.
Ans. data definition language (DDL)
42. DML is a language that enables users to access or manipulate as organized by the appropriate ___.
Ans. data model
43. ___ DML requires a user to specify what data is needed and how to get it.
44. The ___ consists of the memory components of Oracle and various background processes.
Ans. Oracle Instance
45. ___ converts DML statement embedded in an application program to normal procedure calls in the host language.
Ans. DML Precompiler
46. The DDL compiler converts the data definition statements into a set of ___.
47. The ___ translates the various DML statements into low-level file system commands.
Ans. database manager
48. The ___ is used to interpret the online user’s query and convert it into an efficient series of operations.
Ans. query processor
49. The ___ is also responsible for defining procedures to recover the database from failures.
50. The DBA grants different types of ___ for data access to the various users of the database.
51. The DBA uses the ___ in every phase of a database life cycle.
Ans. data dictionary
52. A data dictionary is implemented as a database so that users can query its content by either interactive or ___ processing.
Ans. batch processing
53. In ICT, the ___ subsystem is responsible for managing interaction with the end-user.
Ans. Interface subsystem
54. Transaction subsystem acts as the link between the ___ and the rules and interface subsystems.
Ans. data subsystem
55. The ___ subsystem manages the application logic in terms of a defined model of business rules.
56. Client-server is a software architecture in which two processes interact as superior and___.
57. In practice, a client-server database system generally refers to a ___ of personal computers (PCs).
Ans. local area network
58. ___ is a set of principles concerned with determining which states are valid for a database.
Ans. Data integrity
59. In the Primitive data models approach, objects are represented by ___ structures grouped in file-structures.
60. In the ___ data model the database is represented as a group of related tables.
61. Each tuple in a relation must be ___; that is, there can be no duplicates.
62. A tuple is an ___ set of values.
63. In relational integrity constraints, there are ___ main types of constraints.
64. If a relation has several candidate keys, one is chosen arbitrarily to be the ___ key.
65. The set of permissible values for each attribute is called the ___ for that attribute.
66. A single attribute or combination of attributes whose values uniquely identify the ___ of the relation.
67. The hierarchical data model organizes data in a ___ structure.
68. In a hierarchical database the parent-child relationship is___.
Ans. one to many
69. The popularity of the network data model coincided with the popularity of the ___ data model.
70. Object DBMSs add database functionality to ___ programming languages.
71. A major benefit of the Object-Oriented data model approach is the ___ of the application.
72. There are ___ basic notions that the E-R data model employs.
73. An ___ is a “thing” or object in the real world that is distinguishable from all other objects.
74. An entity set is a set of entities of the same type that share the same properties or ___.
75. Attributes are properties used to describe an ___.
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