dbms -1
TRANSCRIPT
[1] The basic goal of database ……………….. Is to ensure that current transactions operate correctly without any loss of database consistency.
Storage ManagementTransaction ManagementConcurrency ControlLanguage Interface
[2] Which of the following are characteristics of a database management system?
Allows the sharing of data between multiple usersStores the description of the data as well as the dataSupports multiple views of the data
All of the above
[3] Components of Database System HardwareSoftwareDataAll of the above
[4] ……… enables us to represent the real world entities in a form that can be processed by the computer.
Database AdministratorDatabase DesignDatabase ManagementAll of the above
[5] ………….. Is an illustration of the entire database content Physical Level
Conceptual LevelExternal Levelnone of the above
[5] ………….. Is an illustration of the entire databse content. Physical LevelConceptual LevelExternal Levelnone of the above
[6] ………...is a sequence of operations that transforms the database from one state to the other.
Transposition
Transaction
System operation
All of the above
[7] …………. Is the ability to change the conceptual schema without altering the external scheme or application programs Physical data Independence
Logical Data Independence
Both 1&2
None of the above
[8] Data about data is called as…………
MetaData InformationSystem DataData
[9] …………. Is the ability to change the internal schema without altering the conceptual schemes
Physical data IndependenceLogical Data IndependenceBoth 1&2None of the above
[10] Data that is processed and is relevant
DatabaseInformationDataKnowledge
[11] ……… is a program that provides the interface between the data stored in the database and the application programs and queries given to the system.
Security ManagerStorage ManagerTransaction ManagerNone of the above
[12] The Language that enables the user to access or manipulate data is called.
Data Definition LanguageData Manipulation LanguageData Description LanguageSystem Language
[13] Which of the following represents the collection of interrelated data and a set of programs to access those data ?
DatabaseDatabase Management systemRecordsNone of the above
[14] The information stored in the catalog file is called.
DataSystem DataMetaDataCatalog Data
[15] ……...implies the correctness and accuracy of data stored in the database
IntegrityRedundancyExtensibilityNone of the above
[16] ……………….. Is a collection of conceptual tools for describing
data, their relationships, semantics and consistency constraints?
Data ModelDataData ConsistencyNone of the above
[17] ………… implies that information should represent the real world system correctly.
CorrectnessRealistic RepresentationCompletenessConsistency
[18] Collection of interrelated data and a set of programs to access
those data is.
DatabaseDatabase Management SystemRecordsNone of the above
[19] The level of data abstraction which describes how the data is actually stored is ……..
Conceptual Level
Physical Level
File Level
None of the above
[20 ….. demarcates the physical aspects
] of data storage from the logical aspects of data representation
SchemaDataRelationshipCatalog
[21] DBMS is a general purpose software system that facilitates the process of …..
Defining database
Constructing database
Manipulating database
All of the above
[22] ………. Is responsible for protecting the data against unauthorized access.
Concurrency Control
Storage Management
Transaction Management
Security Management
[23] conceals the details of physical storage structures and stresses on describing data
Internal Schema
Conceptual Schema
External Schema
All of the above
[24] …………. Is the individual user level which presents diverse views of the application to the different users.
Physical Level
Logical
LevelExternal Level
All of the above
[25] depicts how data is stored physically
Internal SchemaConceptual SchemaExternal SchemaAll of the above
[26] …..is useful to the users as it defines views of the database for individual users
Internal Schema
Conceptual SchemaExternal SchemaAll of the above
[27] Mapping of association between data elements is called.
RelationshipConstraintsSchemaIntegrity
[28] ………….. Implies that the representation of the entity must be realistic.
CorrectnessRealistic RepresentationCompletenessConsistency
[29] ……….. Aims at identifying the major entities in an application and modeling them in a target database schema model.
Information ModellingData ModellingDatabase Management
None of the above
[30] ……….. Implies that the definition of an entity must cover all possible values that it may take.
CorrectnessRealistic RepresentationCompletenessConsistency
[13] Data about data is called as…………
MetaData InformationSystem DataData
[21] …………...is a system database that contains MetaData
FileCatalogDisksTapes
[28] ……….. Implies that the defined entity should be complete i.e. no attribute should be missing.
CorrectnessRealistic RepresentationCompletenessConsistency