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Department of Computer Science and Engineering
DBMS
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Question 1 : An association among different Entity is called
Option-1 :join
Option-2 :Relationship
Option-3 :Natural join
Option-4 :cartesian product
Question 2 : Mapping cardinalities are
Option-1 :one to one
Option-2 :one to many
Option-3 :many to many
Option-4 :all of the above
Question 3 : An entity in entity set A set can be associated with any number of entites in entity set B but an entity in Bcan be associated with at most one entity in A is _________________mapping candinality
Option-1 :one to one
Option-2 :one to many
Option-3 :many to one
Option-4 :many to many
Question 4 : An entity in entity set A is associated with at most one entity in B and an entity in B is associated with at most one entity in A is _________________mapping candinality.
Option-1 :one to one
Option-2 :one to many
Option-3 :many to one
Option-4 :many to many
Question 5 : _____________is a set of entities of the same type
Option-1 :Entity set
Option-2 :Relationship set
Option-3 :Both of the above
Option-4 :None of the above
Question 6 : RAID is
Option-1 :Redundant arrays of Independent Disks
Option-2 :Redunduncy of Internet
Option-3 :Redundant and Internet
Question 7 : To find the no of rows present in a table we use the following in-built function
Option-1 :Count
Option-2 :Count_rows
Option-3 :none
Question 8 : To remove duplicate values from selection of a field or a group of fields we use the in-built function
Option-1 :distinct
Option-2 :unique
Option-3 :none
Question 9 : char(n) is a
Option-1 :fixed length character string
Option-2 :variable length character string
Question 10 : varchar(n)
Option-1 :fixed length character string
Option-2 :variable length character string
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