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Midterm Quiz1 - Information Management

Authored by Marilou Bartolome

Education

12th Grade

Used 6+ times

Midterm Quiz1 - Information Management
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13 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who introduced the relational model in 1970?

Tim Berners-Lee

Alan Turing

Grace Hopper

E. F. Codd

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is used extensively in mathematics to verify assertions as true or false?

Set theory

Calculus

Algebra

Predicate logic

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a table in the relational model composed of?

Rows and columns

Points and lines

Circles and squares

Letters and numbers

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which attribute is considered the primary key in the STUDENT table?

STU_LNAME

STU_NUM

STU_SECT

STU_FNAME

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of referential integrity in a database?

Ensure valid references between entities

Ensure unique identities for each row

Ensure data manipulation operations

Ensure consistent data format

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the standard notation for representing the relationship between attributes?

ATT_A + ATT_B

ATT_A → ATT_B

ATT_A ↔ ATT_B

ATT_A = ATT_B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a superkey in a database table?

Enforce integrity rules

Determine the value of another attribute

Retrieve a subset of columns

Uniquely identify any row in the table

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