Why interviewers test it
Without a moat, the strategy is just a feature plan. Interviewers test whether you can name a defendable advantage (network, data, integration, brand, switching cost).
Practice questions that drill durable advantage
- Should a fitness app remove its free tier?
- SMB churn on a B2B product
- Underserved segment for an LMS
- Add paid plans to a free-only consumer app
- Ads vs. subscription for a content product
- Should a startup fine-tune on customer data?
- Third-party model vs. self-host
- Should a B2B SaaS product add an AI copilot?
- Build, buy, or partner: AI photo editor
- Pricing for a freemium developer tool
- Reposition against an upmarket competitor
- Bundle or charge separately for AI?
- Move down to SMB or stay enterprise?
- Pivot from feature to platform
- Cold-start strategy for a marketplace
- Moat for an AI-native note-taking app
- Lower quality to hit a cost bar
- Migrate off a vendor dependency
- Acquire a community or build it
- Open-source a developer tool
- Build a platform from a single feature
- Sequence international expansion
- Vertical-specific product variant
- Unbundle a feature into a separate product
- Loyalty program for a SaaS
+ 8 more in the full bank.
Practice this concept in PrepOS
Open the practice simulator, select "Durable advantage" under your weakest concepts, and the adaptive queue will surface reps that drill it first.
Practice durable advantage →