ADV L1
Authored by Axie Lucky
Information Technology (IT)
University
Used 1+ times
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are Relation-based tables
Answer explanation
DBMS allows entities and relations among them to form tables.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does SQL stand for?
Answer explanation
SQL stands for Structured Query Language.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a candidate key?
Answer explanation
A minimal super key is called a candidate key.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a composite key?
Answer explanation
Composite Key - A key that consists of two or more attributes to uniquely identify a record.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a constraint in a database?
Answer explanation
Constraints are restrictions placed on the data in order to ensure data integrity.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a database?
Answer explanation
A database is a structured way to store and manage data.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a derived attribute?
Answer explanation
Derived Attribute - Not stored in the database but calculated from other attributes.
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