# PPSC FPSC KPPSC BPSC SPSC Lecturer Computer Science Test 47

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 Test Instructions:- Test Name Lecturer Computer ScienceÂ Subject Computer Science Test 47 Test Type MCQs Total Questions 25 Total Time 20 Minutes Total Marks 100
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You have 20 minutes to pass to the quiz.

Lecturer Computer Science Online Test No. 47

1 / 25

Consider a directed line(->) from the relationship set advisor to both entity sets instructor and student. This indicates ................... cardinality:

2 / 25

Which of the following gives a logical structure of the database graphically?

3 / 25

Establishing limits on allowable property values, and specifying a set of acceptable predefined options that can be assigned to a property are examples of:

4 / 25

Which of the following can be addressed by enforcing a referential integrity constraint?

5 / 25

Identify the composite attributes:

6 / 25

If an attribute of a composite key is dependent on an attribute of the other composite key, a normalization called _____ is needed.

7 / 25

An entity set that does not have sufficient attributes to form a primary key is termed a..........

8 / 25

We indicate roles in E-R diagrams by labeling the lines that connect ................... to..............

9 / 25

.................is a special type of integrity constraint that relates two relations & maintains consistency across the relations.

10 / 25

Data integrity constraints are used to:

11 / 25

For a weak entity set to be meaningful, it must be associated with another entity set, called the:

12 / 25

.............is preferred method for enforcing data integrity:

13 / 25

A domain is ______ if elements of the domain are considered to be indivisible units.

14 / 25

Which one of the following uniquely identifies the elements in the relation?

15 / 25

Weak entity set is represented as:

16 / 25

Which is the main relation which is used in the university database which is referenced by all other relation of the university.

17 / 25

The Rectangles divided into two parts represents:

18 / 25

If every non-key attribute is functionally dependent primary key, then the relation will be in:

19 / 25

The term for information that describes what type of data is available in a database is:

20 / 25

What term is used to refer to a specific record in your music database; for instance; information stored about a specific album?

21 / 25

The entity relationship set is represented in E-R diagram as:

22 / 25

If a relation is in BCNF, then it is also in:

23 / 25

If you were collecting and storing information about your music collection, an album would be considered a(n):

24 / 25

Drop Table cannot be used to drop a table referenced by a _________ constraint.

25 / 25

Which one is based on multi-valued dependency:

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