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TrackAll DSA Behavioral SQL ML Coding ML Concepts SYSTEM_DESIGN

Difficultyall easy medium hard

114 questions

#1Test QuestionDSAeasy
#41You're analyzing user engagement for a social media platformSQLeasy
#43A regional bank wants to analyze account activity by branch locationSQLeasy
#44A medical clinic wants to identify patients who have been prescribed medications...SQLeasy
#45A mobile gaming company wants to identify the top 3 most active players for each...SQLeasy
#47A SaaS analytics platform wants to understand feature adoption across different...SQLeasy
#48FitZone gym chain wants to analyze member workout frequency to identify their...SQLeasy
#49You're an HR analyst at TechCorpSQLeasy
#50A real estate agency wants to identify all active property listings along with...SQLeasy
#51EduTech University wants to identify students who are performing above the...SQLeasy
#52AeroMax Airlines wants to identify all flights that had passenger bookings...SQLeasy
#53A ride-sharing company wants to rank drivers by their average trip rating within...SQLeasy
#54QuickBite food delivery wants to identify the top 3 performing restaurants in...SQLeasy
#65The NormalizerML Codingeasy
#66The FilterML Codingeasy
#67The AggregatorML Codingeasy
#68Matrix ProductML Codingeasy
#86Chain Rule in BackpropagationML Conceptseasy
#87Cross-Entropy vs MSE for ClassificationML Conceptseasy
#88Vanishing Gradient ProblemML Conceptseasy
#91Min-Max Normalization to 0-1ML Conceptseasy
#46A streaming platform wants to identify content that's experiencing 'viewership...SQLmedium
#55AdMetrics Agency manages digital advertising campaigns across multiple channelsSQLmedium
#56TelecomCorp wants to analyze call quality degradation patterns across their cell...SQLmedium
#57A hedge fund tracks daily portfolio performance across multiple trading...SQLmedium
#58The Grand Palace Hotel chain wants to identify their most reliable room...SQLmedium
#59MegaShield Insurance wants to identify high-value policyholders who have both...SQLmedium
#60The Literary Digest, a prominent publishing house, wants to identify their most...SQLmedium
#61IoTech Manufacturing operates a fleet of industrial sensors across multiple...SQLmedium
#69SoftmaxML Codingmedium
#70Cosine SimilarityML Codingmedium
#71Z-Score StandardizationML Codingmedium
#72One-Hot EncodingML Codingmedium
#73Moving AverageML Codingmedium
#77Scaled Dot-Product AttentionML Conceptsmedium
#78Gradient Flow Through Batch NormalizationML Conceptsmedium
#79Adam vs SGD Generalization GapML Conceptsmedium
#80Dropout vs Batch Normalization InteractionML Conceptsmedium
#81Receptive Field and Network Depth in CNNsML Conceptsmedium
#82Double Descent PhenomenonML Conceptsmedium
#83Contextual vs Static EmbeddingsML Conceptsmedium
#84Why Accuracy Fails on Imbalanced DatasetsML Conceptsmedium
#85Gradient Clipping vs Learning Rate for Exploding GradientsML Conceptsmedium
#89Sinusoidal Positional Encoding MatrixML Conceptsmedium
#92Stable Softmax Activation FunctionML Conceptsmedium
#93F1 Score ImplementationML Conceptsmedium
#94Newsfeed Model Offline Online GapML Conceptsmedium
#96Fraud Model 99% Accuracy ParadoxML Conceptsmedium
#97URL ShortenerSYSTEM_DESIGNmedium
#98Twitter Home TimelineSYSTEM_DESIGNmedium
#99Chat SystemSYSTEM_DESIGNmedium
#100Video StreamingSYSTEM_DESIGNmedium
#101Ride MatchingSYSTEM_DESIGNmedium
#102Rate LimiterSYSTEM_DESIGNmedium
#103Distributed CacheSYSTEM_DESIGNmedium
#104Notification SystemSYSTEM_DESIGNmedium
#105Search AutocompleteSYSTEM_DESIGNmedium
#106Web CrawlerSYSTEM_DESIGNmedium
#107File Sync StorageSYSTEM_DESIGNmedium
#108News FeedSYSTEM_DESIGNmedium
#109Event TicketingSYSTEM_DESIGNmedium
#110Ad ServerSYSTEM_DESIGNmedium
#111Collaborative EditorSYSTEM_DESIGNmedium
#112Payment ProcessorSYSTEM_DESIGNmedium
#113Key-Value StoreSYSTEM_DESIGNmedium
#114Parking Lot SystemSYSTEM_DESIGNmedium
#42A video streaming platform tracks user viewing sessionsSQLhard
#62FitFlex gym chain tracks member gym attendance through entry card swipesSQLhard
#63A streaming platform wants to identify episodes that are experiencing...SQLhard
#64A major investment bank needs to identify potentially fraudulent card...SQLhard
#74Pairwise DistancesML Codinghard
#75K-Means StepML Codinghard
#76Gradient Descent StepML Codinghard
#90Triplet Margin Loss ImplementationML Conceptshard
#95LLM Context Window Memory LeakML Conceptshard
#2Tell me about a time when you and another person had fundamentally different...Behavioral
#3Tell me about a time when you made a decision that ended up being wrong or...Behavioral
#4Tell me about a time when you had to get a team or group of people to change...Behavioral
#5Tell me about a time when you identified a problem that wasn't officially your...Behavioral
#6Tell me about a time when you delivered something that had a much bigger impact...Behavioral
#7Tell me about a time when you had to choose between two viable technical...Behavioral
#8Tell me about a time when you received feedback that initially felt unfair or...Behavioral
#9Tell me about a time when you disagreed with your manager's direction on...Behavioral
#10Tell me about a time when you had to push back against a stakeholder or customer...Behavioral
#11Tell me about a time when you had to work with someone whose working style or...Behavioral
#12Tell me about a time when you had to advocate for a technical decision or...Behavioral
#13Tell me about a time when you were confident in your approach or solution, but...Behavioral
#14Tell me about a time when you underestimated the scope or complexity of...Behavioral
#15Tell me about a time when you missed a critical deadline or commitment that had...Behavioral
#16Tell me about a time when you launched or shipped something that didn't work as...Behavioral
#17Tell me about a time when you had to move forward on a project or initiative...Behavioral
#18Tell me about a time when you were given a vague or high-level request and had...Behavioral
#19Tell me about a time when you discovered that your initial understanding of a...Behavioral
#20Tell me about a time when you had to make a recommendation or proposal without...Behavioral
#21Tell me about a time when you had to rally a team or group that was demoralized,...Behavioral
#22Tell me about a time when you had to coordinate multiple teams or groups with...Behavioral
#23Tell me about a time when you had to lead a project or initiative where the...Behavioral
#24Tell me about a time when you had to convince senior leadership or executives to...Behavioral
#25Tell me about a time when you took on responsibility for fixing something that...Behavioral
#26Tell me about a time when you saw a recurring problem affecting your team or...Behavioral
#27Tell me about a time when you took ownership of ensuring knowledge or expertise...Behavioral
#28Tell me about a time when you stepped in to prevent something important from...Behavioral
#29Tell me about a time when you found a way to solve a problem that others thought...Behavioral
#30Tell me about a time when you recognized an opportunity to create value that...Behavioral
#31Tell me about a time when you made a small change or improvement that ended up...Behavioral
#32Tell me about a time when you fundamentally changed how your team or...Behavioral
#33Tell me about a time when you had to choose between satisfying short-term...Behavioral
#34Tell me about a time when you had to decide whether to prioritize speed of...Behavioral
#35Tell me about a time when you had to decide whether to rebuild something from...Behavioral
#36Tell me about a time when you had to choose between prioritizing immediate...Behavioral
#37Tell me about a time when you realized your expertise or approach in an area you...Behavioral
#38Tell me about a time when you realized your skills or knowledge in a critical...Behavioral
#39Tell me about a skill or area where you went from being weak or inexperienced to...Behavioral
#40Tell me about a time when you realized you had a significant skill gap or blind...Behavioral