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Welcome to the The Entity Relationship Approach MCQs Page

Dive deep into the fascinating world of The Entity Relationship Approach with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of The Entity Relationship Approach, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of The Entity Relationship Approach, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.

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Check out the MCQs below to embark on an enriching journey through The Entity Relationship Approach. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of The Entity Relationship Approach. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

The Entity Relationship Approach MCQs | Page 10 of 31

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Q91.
A foreign key is:

a.

a column containing the primary key of another table.

b.

used to define data types.

c.

used to define null status.

d.

all of the above are above correct.

Discuss
Answer: (a).a column containing the primary key of another table.
Q92.
Which of the following columns is(are) are required in a table?

a.

A foreign key

b.

An alternate key

c.

A primary key

d.

A surrogate key.

Discuss
Answer: (c).A primary key
Q93.
In a 1:1 relationship, the foreign key is placed in:

a.

either table without specifying parent and child tables.

b.

the parent table.

c.

the child table.

d.

either the parent table or the child table.

Discuss
Answer: (a).either table without specifying parent and child tables.
Q94.
Which of the following column properties would be used to specify that cells in a column must be immediately filled with a monetary value of $10,000?

a.

Null status

b.

Data type

c.

Default value

d.

Data constraints

Discuss
Answer: (c).Default value
Q95.
The identifier of an entity will become the ________ of the new table.

a.

foreign key

b.

main attribute

c.

primary key

d.

identity key

Discuss
Answer: (c).primary key
Q96.
Which of the following data constraints would be used to specify that the value of a cell in one column must be less than the value of a cell in another column in the same row of the same table?

a.

A domain constraint

b.

A range constraint

c.

An intrarelation constraint

d.

An interrelation constraint

Discuss
Answer: (c).An intrarelation constraint
Q97.
A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

a.

primary key.

b.

foreign key.

c.

composite key.

d.

surrogate key.

Discuss
Answer: (d).surrogate key.
Q98.
Which is not true about surrogate keys?

a.

They are short.

b.

They are fixed.

c.

They have meaning to the user.

d.

They are numeric.

Discuss
Answer: (c).They have meaning to the user.
Q99.
For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?

a.

Two

b.

Three

c.

Four

d.

Six

Discuss
Answer: (d).Six
Q100.
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?

a.

MUST COVER

b.

MUST NOT

c.

Both of the above.

d.

None of the above is correct.

Discuss
Answer: (a).MUST COVER
Page 10 of 31

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