ECAT Computer Science MCQS Set 8

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ECAT Computer Science MCQS Page 3


In 2NF, which form of dependency is removed ?
partial
associative
transitive
functional

The entity integrity rule states that:
No primary key attribute can be null
Each entity must have a primary key
Primary key must have only one attribute
None

In 3NT which form of dependency is removed ?
transitive
functional
non-functional
associative

The 1NF describes the tabular format in which:
All
All the key attributes are defined
No repeating groups in the table
All attributes are dependent on primary key

Two or more attributes with different name but same meaning create a problem:
Synonyms
Homonyms
Aliases
Alternate attributes

_____ is a constraint on primary values that states that no attribute of a primary key should contain nulls?
entity integrity
referential integrity
normalization
acronyms

A functional dependency between two or more non-key attributes is called:
Transitive dependency
Partial functional dependency
Partial non-key dependency
None

Which format specific is used for integer data type?
%d
%S
%C
%f

_____ is the process of converting complex data structures into simple and stable data structures??
normalization
database integrity
homonyms
mutually exclusive data

C was developed in the year:
1972
1970
1976
1995

Which programming structure makes a comparison?
Decision
Relation
Sequence
Repetition

The statement that is used for an
goto
while
all
for

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