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DBMS Test 3
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Q.1. In a relational schema, each tuple is divided into fields called
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1 point
Relations
Domains
Queries
All of the above
Q.2. A compound key
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is made up of several pieces of information
uniquely identifies an item in a list
Both of the above
is a combination of each unique
Q.3. Which of the following is not a component of the database environment
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users
database
separate files
database administrator
Q.4. Which language has recently become the defacto standard for interfacing application programs with relationship database system?
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oracle
dBase
4GL
SQL
Q.5. Two files may be joined into a third file if
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they have a row in common
they have a field in common
they have no records with the same value in common field
none of the above
Q.6. Which 2 files are used during operation of the DBMS?
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query language and utilities
DML and query language
data dictionary and transaction log
data dictionary and query language
Q.7. RDBMS manage data in more than one file at once. How does it organize these files? As
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tables
relations
tuples
both A and B
Q.8. In relational model, a tuple is equivalent to a
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record
field
file
database
Q.9. In E-R diagram, ellipses represents
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entity sets
attributes
relationship among entity sets
link between attributes and entity sets
Q.10. An attribute of one table matching the primary key of another table, is called as
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foreign key
secondary key
composite key
candidate key
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