PPSC FPSC KPPSC BPSC SPSC Lecturer Computer Science Test 46

Lecturer Computer Science MCQs / , , , , , , , , , , ,

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There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
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Test Instructions:-
Test Name Lecturer Computer Science 
Subject Computer Science Test 45
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. 46

1 / 25

The attribute name could be structured as a attribute consisting of first name, middle initial, and last name . This type of attribute is called

2 / 25

An entity in A is associated with at most one entity in B. An entity in B, however, can be associated with any number (zero or more) of entities in A.

3 / 25

Entity is a:

4 / 25

In a relation between the entities the type and condition of the relation should be specified. That is called as______attribute

5 / 25

The attribute AGE is calculated from DATE_OF_BIRTH . The attribute AGE is

6 / 25

Which of the following statements creates a new table temp instructor that has the same schema as instructor.

7 / 25

Which of the following is not outer join?

8 / 25

In contemporary databases the top level of the hierarchy consists of ______, each of which can contain _____.

9 / 25

In precedence of set operators the expression is evaluated from

10 / 25

Which is a join condition contains an equality operator:

11 / 25

Which of the following is used to denote the selection operation in relational algebra?

12 / 25

For select operation the ________ appear in the subscript and the ___________ argument appears in the parenthesis after the sigma.

13 / 25

..................., express the number of entities to which another entity can be associated via a relationship set.

14 / 25

The ___________ operation, denoted by −, allows us to find tuples that are in one relation but are not in another.

15 / 25

Which of the following is a single valued attribute

16 / 25

The function that an entity plays in a relationship is called that entity‘s..........

17 / 25

Not applicable condition can be represented in relation entry as:

18 / 25

Relational Algebra is a .............query language that takes two relation as input and produces another relation as output of the query.

19 / 25

An entity in A is associated with at most one entity in B, and an entity in B is associated with at most one entity in A. This is called as

20 / 25

Which of the following can be a multivalued attribute?

21 / 25

An ________ is a set of entities of the same type that share the same properties, or attributes .

22 / 25

Which is a unary operation:

23 / 25

The assignment operator is denoted by

24 / 25

The descriptive property possessed by each entity set is

25 / 25

Which of the following is a fundamental operation in relational algebra?

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