Database Design Ecosystem Overview

Evaluate your understanding of tools,modeling,and best practices in database design.

1. Which database relationship type involves one record in a table关联多个 records in another table?
2. What is the highest normal form typically aimed for in relational database design to minimize redundancy?
3. In an ER diagram, which symbol represents a weak entity?
4. Which key uniquely identifies each record in a table and cannot contain NULL values?
5. What term describes a column or set of columns in one table that references the primary key of another table?
6. Which data model uses tables with rows and columns to organize data?
7. What is the process of organizing data in a database to reduce redundancy and improve data integrity called?
8. In SQL, which clause is used to enforce a rule on a column (e.g., value range)?
9. Which of the following are ACID properties of database transactions? (Select all that apply)
10. Which of these are types of NoSQL databases? (Select all that apply)
11. Which components are typically part of a database schema? (Select all that apply)
12. What are the goals of database normalization? (Select all that apply)
13. Which of the following are valid relationship cardinalities in ER diagrams? (Select all that apply)
14. A composite key consists of two or more columns combined to uniquely identify a record.
15. NoSQL databases are always better than SQL databases for handling structured data.
16. In database design, an entity is a person, place, thing, or event that can be uniquely identified.
17. A database index always improves the performance of both read and write operations.
18. What does the abbreviation 'SQL' stand for?
19. What term refers to a visual representation of entities, attributes, and relationships in a database system? (abbrev.)
20. What is the term for a set of rules that defines the structure of a database, including tables, columns, and relationships?
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