Practice Hash Files (Direct Files) - 7.3.3 | Module 7: File Organization and Indexing | Introduction to Database Systems
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does a hash function do?

πŸ’‘ Hint: Think about mapping keys to locations.

Question 2

Easy

What is a collision in hashing?

πŸ’‘ Hint: Consider multiple letters going to the same mailbox.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary advantage of using hash files?

  • Fast access
  • Storage space efficiency
  • Sequential access

πŸ’‘ Hint: Think about the speed of finding a specific letter in your mailbox.

Question 2

True or False: Collisions in hash files lead to improved access speed.

  • True
  • False

πŸ’‘ Hint: Consider how fitting too many letters into one mailbox would slow down access.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a hashing system for a small library that allows for efficient book lookup. How would you prevent collisions and manage storage?

πŸ’‘ Hint: Consider how libraries alphabetize their books and deal with similar titles.

Question 2

Evaluate the effect of hash functions on database performance. What qualities make a good hash function?

πŸ’‘ Hint: Think about the factors that make a recipe work well, like the right ingredients and quantities.

Challenge and get performance evaluation