Midterm Quiz1 - Information Management

Quiz
•
Education
•
12th Grade
•
Medium

Marilou Bartolome
Used 6+ times
FREE Resource
13 questions
Show all answers
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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