Representative practice library

Know what to practice next.

Company- and role-focused prompts for structured practice. These are Replysis practice questions, not leaked or officially supplied company questions.

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GeneralBehavioralFoundation

Tell me about yourself and why this role is the right next step.

What to demonstrate

A focused 60–90 second career narrative

GeneralCodingFoundation

Given a string, return the first non-repeating character and explain the complexity.

What to demonstrate

Hash maps, edge cases, complexity

GeneralCodingIntermediate

Design an LRU cache with O(1) get and put operations.

What to demonstrate

Data structure composition and invariants

GeneralSystem DesignAdvanced

Design a notification service for email, SMS, and push at large scale.

What to demonstrate

Queues, preferences, retries, idempotency

GeneralRole KnowledgeIntermediate

How do you investigate a production latency regression when no deployment is obvious?

What to demonstrate

Observability and hypothesis-driven debugging

GeneralBehavioralFoundation

Tell me about a product decision you changed after learning from customers.

What to demonstrate

Judgment, learning, and measurable impact

GeneralRole KnowledgeIntermediate

How would you prioritize a roadmap when sales, support, and engineering disagree?

What to demonstrate

Framework, evidence, and stakeholder alignment

GeneralSystem DesignAdvanced

Design the product and success metrics for a collaborative document approval workflow.

What to demonstrate

User journeys, states, permissions, metrics

GeneralRole KnowledgeFoundation

Explain the difference between correlation and causation to a non-technical stakeholder.

What to demonstrate

Clarity and decision risk

GeneralCodingIntermediate

Write SQL to calculate seven-day retention by signup cohort.

What to demonstrate

Cohorts, joins, date logic

GeneralSystem DesignAdvanced

Design an experimentation platform that supports guardrail metrics and delayed outcomes.

What to demonstrate

Assignment, metrics, bias, governance

GeneralBehavioralFoundation

Walk me through a deal you lost and what you changed afterward.

What to demonstrate

Ownership, diagnosis, and adaptation

GeneralRole KnowledgeIntermediate

How do you qualify an opportunity without making the buyer feel interrogated?

What to demonstrate

Discovery, value, and mutual fit

GeneralBehavioralAdvanced

Tell me about a high-performing employee whose growth required difficult feedback.

What to demonstrate

Candor, coaching, and outcome

GeneralSystem DesignAdvanced

How would you redesign an organization that repeatedly misses cross-team commitments?

What to demonstrate

Operating model, ownership, and feedback loops

AmazonBehavioralIntermediate

Tell me about a time you made an important decision with incomplete data.

What to demonstrate

Bias for action with reversible-risk thinking

AmazonBehavioralAdvanced

Describe a time you disagreed with a decision, committed, and helped the team succeed.

What to demonstrate

Constructive dissent and commitment

AmazonSystem DesignAdvanced

Design a globally available order-status tracking service.

What to demonstrate

Event flow, consistency, regional failure

AmazonRole KnowledgeIntermediate

A key customer metric drops 8% overnight. How do you investigate and communicate the response?

What to demonstrate

Customer obsession and structured diagnosis

GoogleCodingAdvanced

Given a dependency graph, return a valid build order or explain why none exists.

What to demonstrate

Graph traversal and cycle detection

GoogleSystem DesignAdvanced

Design type-ahead search suggestions for hundreds of millions of users.

What to demonstrate

Ranking, latency, caching, freshness

GoogleRole KnowledgeIntermediate

How would you measure whether a search-result explanation improves user trust?

What to demonstrate

Metrics, experiment design, side effects

GoogleBehavioralAdvanced

Tell me about a technically correct idea that failed to gain adoption.

What to demonstrate

Influence, empathy, and iteration

MetaCodingIntermediate

Merge overlapping activity intervals and return the total active time.

What to demonstrate

Sorting, interval invariants, complexity

MetaSystem DesignAdvanced

Design a real-time feed ranking and delivery system.

What to demonstrate

Fan-out, ranking, freshness, abuse

MetaRole KnowledgeAdvanced

A feature grows engagement but also increases negative reports. What do you do next?

What to demonstrate

Metric trade-offs and integrity

MetaRole KnowledgeIntermediate

How would you determine whether a social feature creates meaningful interaction rather than empty clicks?

What to demonstrate

North-star and quality metrics

MicrosoftSystem DesignAdvanced

Design a multi-tenant collaboration service with enterprise permissions and audit logs.

What to demonstrate

Identity, authorization, tenancy, auditability

MicrosoftBehavioralIntermediate

Tell me about a time customer accessibility needs changed your product plan.

What to demonstrate

Inclusive product judgment

MicrosoftBehavioralAdvanced

Describe how you built alignment across teams with different incentives.

What to demonstrate

Clarity, listening, and shared outcomes

MicrosoftRole KnowledgeIntermediate

How would you position a platform migration when the customer fears vendor lock-in?

What to demonstrate

Risk, trust, and phased value

AppleRole KnowledgeIntermediate

How do you balance performance, battery life, privacy, and user experience in a client feature?

What to demonstrate

Systems trade-offs and product quality

AppleBehavioralAdvanced

Tell me about a detail most people overlooked that materially improved the product.

What to demonstrate

Craft, judgment, and customer impact

AppleRole KnowledgeAdvanced

How would you evaluate an on-device model when privacy prevents centralized raw-data collection?

What to demonstrate

Privacy-preserving evaluation

AppleBehavioralAdvanced

Describe a time you protected product quality under intense schedule pressure.

What to demonstrate

Standards, trade-offs, and delivery