Free practice test

Ordinal Comparers: Dictionary and HashSet Practice

Twelve focused questions on ordinal comparison, duplicate handling, lookup, removal and comparer migration. Review the explanation after each attempt. Use alongside lesson 2 of C# Equality and Hash Collections; allow about 20 minutes.

• Answers save as you go. Move between questions freely, and mark any to come back to.
• No time limit: take as long as you need.
• Keyboard: press A–D to choose an option; ← and → move between questions.

Questions

12

Time

No limit

Right answer

+1

Wrong answer

0

12 marks in all

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