Functional Coverage Puzzles

What this section covers

Puzzle-centric interview drills for functional coverage math and semantics: coverpoint bins, cross/binsof/intersect, options behavior, and closure debugging with sampling-time traps.

Topics

Covergroup and Coverpoint Puzzles — 6 puzzles
Cross Coverage Puzzles — 6 puzzles
Coverage Options Puzzles — 6 puzzles
Coverage Closure and Sampling Timing Puzzles — 6 puzzles

How to practice

1. Open each topic and attempt every puzzle cold, writing your predicted answer first.

2. Only then read the step-by-step solution and confirm the exact answer.

3. Re-read the 'why candidates get it wrong' note — that is the actual interview signal.

4. Finish with the section Q&A to rehearse explaining the rule out loud.

Related topics

• VLSI DV Interview Puzzles hub