This FC0-U61 practice question tests your understanding of database fundamentals. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A database analyst is designing a schema for a library system. Each book can have multiple authors, and each author can write multiple books. Which relationship type should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Many-to-many
The correct relationship is many-to-many because a book can have multiple authors and an author can write multiple books. In database schema design, this requires a junction table (also known as a linking or associative table) to resolve the many-to-many relationship into two one-to-many relationships, ensuring referential integrity and avoiding data redundancy.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Many-to-one
Why it's wrong here
Many-to-one is the inverse of one-to-many and does not solve the requirement for multiple authors per book.
✗
One-to-many
Why it's wrong here
One-to-many would allow one author to have many books but not many authors per book.
✓
Many-to-many
Why this is correct
Many-to-many is correct because a book can have multiple authors and an author can write multiple books, requiring a junction table.
Related concept
Read the scenario before looking for a memorised answer.
✗
One-to-one
Why it's wrong here
One-to-one would incorrectly restrict each book to one author and each author to one book.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse one-to-many with many-to-many when the problem statement mentions 'multiple' on one side only, but the key is that both entities can have multiple related records, which requires a junction table.
Detailed technical explanation
How to think about this question
Under the hood, a many-to-many relationship is implemented using a junction table that contains foreign keys referencing the primary keys of both the Book and Author tables. This junction table can also store additional attributes, such as the author's role (e.g., co-author or editor). In a real-world library system, this design prevents data duplication and allows efficient queries like 'find all books by a given author' or 'list all authors of a specific book' using JOIN operations.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the FC0-U61 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Database Fundamentals — This question tests Database Fundamentals — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Many-to-many — The correct relationship is many-to-many because a book can have multiple authors and an author can write multiple books. In database schema design, this requires a junction table (also known as a linking or associative table) to resolve the many-to-many relationship into two one-to-many relationships, ensuring referential integrity and avoiding data redundancy.
What should I do if I get this FC0-U61 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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