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111 / 120
Which statement is true regarding the INTERSECT operator?
AIt ignores NULL values
BReversing the order of the intersected tables the result
CThe names of columns in all SELECT statements must be identical
DThe number of columns and data types must be identical for all SELECT statements in the query
Answer: Option D
Explanation:Here is no explanation for this answer
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112 / 120
Which statement is true regarding synonyms?
ASynonyms can be created only for a table
BSynonyms are used to reference only those tables that are owned by another user
CA public synonym and a private synonym can exist with the same name for the same table
DThe DROP SYNONYM statement removes the synonym and the table on which the synonym has been created becomes invalid
Answer: Option C
Explanation:Here is no explanation for this answer
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113 / 120
Which statement is true regarding subqueries?
AThe LIKE operator cannot be used with single-row subqueries.
BThe NOT IN operator is equivalent to IS NULL with single-row subqueries.
C=ANY and =ALL operators have the same functionality in multiple-row subqueries.
DThe NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries.
Answer: Option D
Explanation:Here is no explanation for this answer
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114 / 120
Which keyword when applied on a method indicates that only one thread should execute the method at a time. Select the one correct answer.
Atransient
Bvolatile
Csynchronized
Dnative
Estatic
Answer: Option C
Explanation:Here is no explanation for this answer
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115 / 120
A Class consists of which of these abstractions?
ASet of the objects
BOperations
CAttributes
DAll of the mentioned
EBoth B & C
Answer: Option D
Explanation:A class is a abstraction of objects, operations and attributes.
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116 / 120
A class is divided into which of these compartments ?
AName Compartment
BAttribute Compartment
COperation Compartment
DAll of the mentioned
Answer: Option D
Explanation:Here is no explanation for this answer
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117 / 120
An attribute is a data item held by which of the following?
AClass
BObject
CAll of the mentioned
DNone of the mentioned
Answer: Option C
Explanation:Attribute is a data item held by class or object.
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118 / 120
What should be mentioned as attributes for conceptual modelling ?
AInitial Values
BNames
CAll of the mentioned
DNone of the mentioned
Answer: Option C
Explanation:Initial values along with their names are used as attributes.
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119 / 120
An operation can be described as?
AObject behavior
BClass behavior
CFunctions
Da,b
ENone of the mentioned
Answer: Option D
Explanation:An operation is class and object behavior.
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120 / 120
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
A120 metres
B180 metres
C324 metres
D150 metres
Answer: Option D
Explanation:Length of the train = (Speed x Time) =50/3 x 9 m = 150 m.
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