AI Skill Library - Full Coverage Guide

Overview

Our AI skill library spans six major domains, covering everything from foundational machine learning concepts to production-grade data engineering tooling and responsible AI governance. Each skill is assessed through one or more question types to give a complete picture of a candidate's depth.

TOTAL SKILLS	QUESTION TYPES	TOTAL QUESTIONS
163	6	13,858

Question Types

Skills in the library is covered across different question types:

Multiple Choice (MCQ) — broad topic coverage and knowledge checks
Subjective — written, open-ended reasoning questions
Data Science — applied DS problem-solving
Machine Learning — hands-on ML tasks and interpretation
DevOps — tooling, deployment, and infrastructure
Project — LLM based application building

Table 1: Category Overview

CATEGORY	SUB-TOPICS COVERED	TOTAL SKILLS
AI Engineering	Core Concepts, Agentic Systems, LLM Infrastructure, MLOps & Deployment, LLM Frameworks, Prompt Engineering, RAG & Retrieval, Transfer Learning, Federated Learning, Intelligent Automation, Conversational AI Platform, Low-Code AI Platforms	43
Generative AI	Core GenAI, Prompt Engineering, RAG & Retrieval, Conversational AI	8
Machine Learning	Core ML, Learning Paradigms, Transfer Learning, Federated Learning, Interpretability, Data Analysis, Feature Engineering, Quantum ML, Robotics & Automation, Industrial AI	20
Data Science	Core Data Science, Business Intelligence, Data Visualization, Scientific Computing, Analytics Notebooks	27
Data Engineering	Core Data Engineering, ETL & Pipelines, ETL Tools, Big Data Processing, Cloud Data Warehousing, Streaming & Messaging, IoT & Edge Data, Data Governance, Data Security, NoSQL & Streaming DBs	52
AI Ethics & Evaluation	AI Ethics, Interpretability, Risk & Compliance, Quantum Computing	13
Total	—	163

Table 2: Skills Detail

CATEGORY	SKILL	QUESTIONS	TAGS
AI Engineering	Artificial Intelligence	2,054	AI, AI Skills, AI NLP, AI Optimization, AI Decision Trees, AI Builder Integration, AI Fabric Integration, AI Search Algorithms, AI Tool Chaining, AI Tool Chaining API Integration, AI Tool Chaining Model Linking, AI Tool Chaining Multi-tool Automation, AI Tool Chaining Pipeline Creation, AI Tool Chaining Workflows, AI-augmented Coding, AI-augmented Code Generation, AI-augmented Coding Bug Detection, AI-augmented Coding Code Optimization, AI-augmented Coding Code Review Automation, AI-augmented Coding Model Inference, AI-Resilient Codebase Debugging, AI-Resilient Projects, AI-Resilient Realworld Codebase Debugging, AI Safety, AI Safety Accountability, AI Safety Bias in Models, AI Safety Ethical AI, AI Safety Safe Deployment, AI Safety Transparency, AI Ethics, AI Alignment, AI Governance, AI Policy, AI Transparency, AI System Testing & Evaluation, AI System Testing & Evaluation Integration Tests, AI System Testing & Evaluation Model Audits, AI System Testing & Evaluation Performance Evaluation, AI System Testing & Evaluation Scalability Testing, AI System Testing & Evaluation Unit Tests, AEO, AEO Algorithmic Understanding, AEO Content Retrieval, AEO Personalization, AEO Ranking, AEO Search Optimization, Guardrails AI, Guardrails AI Bias Control, Guardrails AI Content Moderation, Guardrails AI Ethics, Guardrails AI Model Oversight, Guardrails AI Safety, Real-time AI Integration, Real-time AI Integration API Integration, Real-time AI Integration Data Streams, Real-time AI Integration Edge Computing, Real-time AI Integration Real-time Analytics, Real-time AI Integration Scalable Infrastructure
AI Engineering	Agentic AI	30	Action Selection, Agent Architecture, Autonomous Agents, Goal-Oriented Behavior, Intelligence Amplification
AI Engineering	LLM	71	Infra & Tuning, LLMOps, Language Model, Memory Management, Distributed Computing, Fine-tuning, Model Scaling
AI Engineering	Large Language Model	60	Infra & Tuning, LLMOps, Memory Management, Fine-tuning, Model Scaling, Multilingual Models
AI Engineering	Large Context Model	45	GPT-3 Encoder, BERT, DistilBERT, Mistral, Gemini, Claude, Universal Language Models
AI Engineering	Model Context Protocol	30	MCP, Action Chaining, Automated Learning, Human-AI Collaboration
AI Engineering	Model Governance	30	Selection, Drift Detection, Performance Monitoring, Development Lifecycle, Versioning
AI Engineering	Model Lifecycle Management	30	Versioning, Deployment, Drift Detection, Performance Monitoring, Development Lifecycle
AI Engineering	Machine Learning Operations	60	Infrastructure Automation, Model Deployment, Model Monitoring, Performance Tuning, Scaling
AI Engineering	Langchain	62	Agent Execution, Agents, Architecture, Custom Tools, Data Sources Integration, Memory Management, Tool Integration
AI Engineering	LangGraph	61	Embeddings, Execution Debugging, Graph Networks, Graph Representations, LangChain Integration, Multi-Agent Coordination, State Management, Workflow Design
AI Engineering	GraphAI	1	Multi-Agent Systems, Agentic Workflows, Autonomous Decision-Making
AI Engineering	Prompt Engineering	162	Few-shot Learning, Prompt Design, Prompt Evaluation, Prompt Optimization, Zero-shot Learning, Chain of Thought Reasoning, Instruction Tuning, Prompt Injection, Prompt Drift
AI Engineering	Retrieval-Augmented Generation	38	Contextual Understanding, Document Retrieval, Information Augmentation, Information Retrieval, Knowledge Integration, Performance Evaluation, Retrieval Algorithms, Training RAG Models
AI Engineering	Transfer Learning	36	Domain Adaptation, Domain Shift, Language Transfer, Layer Freezing, Pre-Trained Models, LoRA, PEFT
AI Engineering	Federated Learning	31	Clustered Federated Learning, Personalized Federated Learning, FedAvg, Hard Parameter Sharing, Soft Parameter Sharing, Multi Task Learning, Non IID Data, Noise Robustness
AI Engineering	RPA	30	Intelligent Automation, Intelligent Capture, Intelligent Document Processing, Intelligent Extraction, Cognitive Automation
AI Engineering	UIPATH	30	Intelligent Automation, Cognitive Automation, Workflow Management
AI Engineering	Automation Anywhere	30	Intelligent Automation, Cognitive Automation, Intelligent Document Processing
AI Engineering	Blue Prism	30	Intelligent Automation, Cognitive Capture, Workflow Management
AI Engineering	Kofax	30	Intelligent Capture, Intelligent Document Processing, Intelligent Extraction, Cognitive Capture
AI Engineering	Workfusion	30	Cognitive Automation, Cognitive Capture, Intelligent Automation
AI Engineering	Automated Systems	30	Intelligent Automation, Cognitive Automation, Workflow Management
AI Engineering	Voice Recognition	30	Speaker Identification, Speaker Recognition, Speaker Verification, Speaker Adaptation, Voice Authentication, Voice Biometrics, ASR, Automatic Speech Recognition
AI Engineering	Speech Synthesis	30	Text to Speech, Neural Speech Synthesis, Multilingual TTS, Voice Cloning, Voice Conversion, WaveNet, Tacotron, Transformer TTS
AI Engineering	Chatbot	3	Deployment, Testing, Training, AI Powered Chatbots, Rule Based Chatbots, Rule Based Systems
AI Engineering	Chatbot Development	30	Dialog Management, Dialog Systems, Conversational Personality, Voice Agent Development
AI Engineering	Conversational AI	30	Voice Agent Development, Dialog Management, Dialog Systems, Conversational Personality
AI Engineering	Low Code No Code Platforms	30	Automated Model Training, Customization, Deployment, Drag-and-Drop Interfaces, Tool Integration, AutoML Capabilities
AI Engineering	Appian	115	No-code/Low-code AI Tools, AutoML Capabilities, Drag-and-Drop Interfaces
AI Engineering	Mendix	30	No-code/Low-code AI Tools, Drag-and-Drop Interfaces, Tool Integration
AI Engineering	Outsystems	30	No-code/Low-code AI Tools, Deployment, Tool Integration
AI Engineering	Pega	30	No-code/Low-code AI Tools, Workflow Management, Intelligent Automation
AI Engineering	ServiceNow	43	No-code/Low-code AI Tools, Workflow Management, Intelligent Automation
AI Engineering	Power Apps	30	No-code/Low-code AI Tools, AutoML Capabilities, Drag-and-Drop Interfaces
AI Engineering	Microsoft Power Automate	30	No-code/Low-code AI Tools, Workflow Management, Tool Integration
AI Engineering	Microsoft Power Automate Advanced	30	No-code/Low-code AI Tools, Workflow Management, Advanced Automation
AI Engineering	Microsoft Power Platform	30	No-code/Low-code AI Tools, Workflow Management, Tool Integration
AI Engineering	Google AppSheet	30	No-code/Low-code AI Tools, Drag-and-Drop Interfaces, Automated Model Training
AI Engineering	Bubble	30	No-code/Low-code AI Tools, Drag-and-Drop Interfaces
AI Engineering	Zapier	30	No-code/Low-code AI Tools, Workflow Management, Tool Integration
Generative AI	Generative AI	227	Applications, Evaluation, Models, Tools, Training, GenAI
Generative AI	Prompt Engineering	162	Few-shot Learning, Prompt Design, Prompt Evaluation, Prompt Optimization, Zero-shot Learning, Chain of Thought Reasoning, Instruction Tuning, Prompt Injection, Prompt Drift
Generative AI	Retrieval-Augmented Generation	38	Contextual Understanding, Document Retrieval, Information Augmentation, Information Retrieval, Knowledge Integration, Performance Evaluation, Retrieval Algorithms, Training RAG Models
Generative AI	Chatbot	3	Deployment, Testing, Training, AI Powered Chatbots, Rule Based Chatbots, Rule Based Systems
Generative AI	Chatbot Development	30	Dialog Management, Dialog Systems, Conversational Personality, Voice Agent Development
Generative AI	Conversational AI	30	Voice Agent Development, Dialog Management, Dialog Systems, Conversational Personality
Generative AI	Voice Recognition	30	Speaker Identification, Speaker Recognition, Speaker Verification, Speaker Adaptation, Voice Authentication, Voice Biometrics, ASR, Automatic Speech Recognition
Generative AI	Speech Synthesis	30	Text to Speech, Neural Speech Synthesis, Multilingual TTS, Voice Cloning, Voice Conversion, WaveNet, Tacotron, Transformer TTS
Machine Learning	Machine Learning	939	Algorithms, Models, Supervised Learning, Unsupervised Learning, Feature Engineering, Deep Learning, Neural Networks, Model Evaluation
Machine Learning	Machine Learning Operations	60	Infrastructure Automation, Model Deployment, Model Monitoring, Performance Tuning, Scaling
Machine Learning	Reinforcement Learning	54	Q Learning, Deep Q Networks, PPO, Actor Critic, Policy Gradient, Bellman Equation, Temporal Difference Learning, Hierarchical RL, REINFORCE, Dyna Q
Machine Learning	Transfer Learning	36	Domain Adaptation, Domain Shift, Language Transfer, Layer Freezing, Pre-Trained Models, LoRA, PEFT
Machine Learning	Federated Learning	31	Clustered Federated Learning, Personalized Federated Learning, FedAvg, Hard Parameter Sharing, Soft Parameter Sharing, Multi Task Learning, Non IID Data, Noise Robustness
Machine Learning	Explainable AI	30	Causal Inference, Interpretability, LIME, SHAP, Saliency Maps, Shapley Values, Grad CAM, Counterfactual Explanations, Partial Dependence Plots, Permutation Importance
Machine Learning	Exploratory Data Analysis	30	Data Analytics, Analytical Skills, Data Analysis, Data Visualization, Statistical Analysis
Machine Learning	Feature Swap	1	Feature Engineering, Feature Extraction, Feature Importance, Feature Selection, Feature Drift, Feature Interaction, Feature Mapping
Machine Learning	Quantum Machine Learning	36	QNN, Quantum Neural Networks, Quantum Deep Learning, Quantum Backpropagation, Quantum Clustering, Quantum Kernel Methods, QSVM, Quantum Feature Maps, Quantum Data Science
Machine Learning	Quantum Algorithms	36	Algorithm Implementation, Approximate Optimization, Grover Algorithm, Shor Algorithm, QAOA, QFT, Amplitude Amplification, Eigenvalue Estimation
Machine Learning	Quantum Computing	30	Quantum Bits, Quantum Circuits, Quantum Gates, Quantum Mechanics, Quantum Error Correction, Quantum Entanglement, Qubits, Quantum Simulation
Machine Learning	Quantum Cryptography	30	Key Distribution, Resistant Algorithms, Secure Direct Communication, QKD, QSDC, BB84 Protocol, Cryptanalysis, Digital Signatures
Machine Learning	Quantum Programming	30	Programming Languages, Code Development, Development Framework, Hardware Programming, Software Development, Quantum Coding
Machine Learning	Qiskit	30	Algorithms, Applications, Architecture, Backend, Circuits, Components, Development, Framework, Jobs, Optimization, Structure
Machine Learning	Robot Framework	1	Intelligent Automation, Workflow Management
Machine Learning	HMI	104	Dialog Systems, Human-AI Interface, Human-AI Collaboration
Machine Learning	Sensor Networks	30	IoT Communication, IoT Concepts, IoT Data, IoT Hardware
Machine Learning	Transducers	30	Acoustic Features, Acoustic Modeling, Audio Processing, Speech Enhancement
Machine Learning	Arduino	30	IoT Hardware, IoT Concepts, Edge Analytics
Machine Learning	Raspberry Pi	30	Edge Analytics, Edge Computing, IoT Hardware
Data Science	Data Science	612	Classification Models, Clustering, Exploratory Data Analysis, Feature Selection, Regression Models
Data Science	Data Analysis and Manipulation	35	NumPy, Pandas, SciPy, Statistical Analysis, Statistics
Data Science	Data Analytics & Visualization	30	Data Visualization, MatPlotLib, Tableau, Power BI
Data Science	Data Analytics Tools	69	Tableau, Power BI, Grafana, Kibana, Apache Superset
Data Science	Data Analytics	35	Analytical Skills, Data Analysis, Data Visualization, Statistical Analysis
Data Science	Exploratory Data Analysis	30	Data Analytics, Analytical Skills, Data Analysis, Data Visualization, Statistical Analysis
Data Science	Business Intelligence	90	Statistical Analysis, Business Reporting, Business Performance Management
Data Science	Business Intelligence Tools	60	Tableau, Power BI, Qlik Sense, MicroStrategy, Grafana
Data Science	Business Performance Management	30	Statistical Process Control, Sensitivity Analysis
Data Science	Business Reporting	19	Data Visualization, Statistical Analysis
Data Science	Tableau	86	Calculated Fields, Dashboards, Data Connections, Filters, LOD Expressions
Data Science	Power BI	30	Analytics, DAX, Data Models, Reports, Visualization
Data Science	PowerBI	221	Analytics, DAX, Data Models, Reports, Visualization
Data Science	Qlik Sense	13	Data Visualization, Dashboards, Analytics
Data Science	Grafana	60	Dashboards, Visualization, Alerting, Data Sources, Panels
Data Science	Kibana	30	Data Visualization, Dashboards, Analytics
Data Science	Splunk	42	Administration And Configuration, Dashboards And Visualizations, Data Ingestion And Indexing, Data Models, Search Commands, Search Processing Language, Statistical Analysis, Visualization Selection
Data Science	MicroStrategy	30	Data Visualization, Dashboards, Analytics
Data Science	LookML	30	Data Modeling, Data Visualization, Analytics
Data Science	SSAS	1	Data Modeling, Analytics, Business Intelligence
Data Science	Apache Superset	30	Visualizations, Charts, Dashboards, Advanced Features, Basics, Security
Data Science	SAS	90	Base Programming, Data Integration Studio, Enterprise Guide, Macros, SQL Procedures
Data Science	Julia	60	DataFrames.jl, Machine Learning, Numerical Computing, Optimization, Parallel Computing
Data Science	SciPy	30	Optimization, Statistical Analysis, Numerical Computing
Data Science	R	263	Data Manipulation, Data Visualization, Shiny, Statistical Modeling, ggplot2
Data Science	Jupyter Notebooks	60	Basics, Environment, Kernels, Libraries, Advanced Features, Cells, Interface, Markdown, Visualizations, Widgets
Data Science	Apache Zeppelin	30	Analytics, Architecture, Basics, Configuration, Data Sources, Interpreters, Notebooks, Visualization
Data Engineering	Data Engineering	126	Batch Processing, Big Data Technologies, Cloud Data Solutions, Data Lakes, ETL Pipelines, Pipeline Development, Real-Time Data Processing
Data Engineering	Data Processing	140	ETL Processes, Data Pipeline, Data Pipeline Automation, Transformation Logic Testing
Data Engineering	Data Frames	52	Spark Dataframes, PySpark Data Handling, Data Transformation
Data Engineering	ETL	269	ETL Processes, ETL Testing, Complex ETL, ETL and Data Migration Testing
Data Engineering	ETL Testing	30	ETL and Data Migration Testing, ETL Process and Performance Testing, Data Quality Testing, Transformation Logic Testing
Data Engineering	Cloud Native ETL	28	Cross Cloud Data Management, Cloud Data Engineering
Data Engineering	Pipeline	23	Data Pipeline, Data Pipeline Automation, Pipeline Configuration
Data Engineering	Pipeline Configuration	30	DAG, DAG Development, Airflow, Apache Airflow Fundamentals
Data Engineering	Data Migration	37	ETL and Data Migration Testing, Data Cleansing Validation, Data Quality, Data Validation
Data Engineering	Data Modeling	85	MDM Architecture, MDM Concepts, MDM Implementation, MDM Integration
Data Engineering	Data Warehousing	128	Snowflake, Databricks, Big Query, Azure Synapse, Delta Lake
Data Engineering	Informatica	82	Informatica Cloud, Informatica Data Quality, Informatica MDM, Informatica PowerCenter
Data Engineering	Informatica PowerCenter	36	ETL Processes, Data Integration, Data Quality, Workflow Management
Data Engineering	Talend	60	Architecture, Basics, Big Data Integration, Cloud Integration, Data Cleansing, Data Quality, ETL Processes, Jobs, Studio, Workflows
Data Engineering	Dbt	20	dbt Python, Data Transformation, Data Modeling
Data Engineering	dbt Python	4	Data Transformation, Data Modeling, Python Integration
Data Engineering	Apache Camel	30	ETL Processes, Data Integration, Routing, Workflow Management
Data Engineering	Apache Griffin	30	Data Governance, Data Integration, Data Lineage, Data Profiling, Data Quality
Data Engineering	Apache Beam	30	Core Concepts, Deployment, Pipeline, Runners, Transforms, Triggers, Windowing
Data Engineering	Hadoop	387	HDFS, Hive, Pig, YARN, MapReduce
Data Engineering	HDFS	31	Hadoop HDFS, Distributed Storage
Data Engineering	Spark	30	Dataframes, MLlib, RDDs, SQL, Streaming
Data Engineering	Spark Code	20	Dataframes, MLlib, RDDs, SQL
Data Engineering	Spark Dataframes	36	PySpark Data Handling, PySpark Data Transformation, Column Operations
Data Engineering	Spark SQL	36	SQL Queries, Data Processing, Schema Management
Data Engineering	PySpark	229	Aggregations and Windowing, Column Operations, Data Handling, Data Transformation, Data Wrangling, Filtering and Joining, Machine Learning, Schema and Optimization
Data Engineering	Big Data	326	Big Data Sources, Hadoop, Kafka, Spark
Data Engineering	EMR	30	Elastic MapReduce, Hadoop, Big Data Processing
Data Engineering	Greenplum	50	Data Warehousing, SQL Analytics, Distributed Database
Data Engineering	Teradata	31	Data Warehousing, SQL Analytics, Database Management
Data Engineering	Databricks	30	SQL Analytics, Workspace, Delta Lake, Collaborative Analytics
Data Engineering	Snowflake	36	Access Control, Architecture, Cost Management, Data Loading, Data Modeling, Monitoring & Observability, Performance Optimization, Query Performance, Security
Data Engineering	Snowpipe	20	Data Loading, Streaming Ingestion, Snowflake Integration
Data Engineering	Big Query	30	Google Cloud BigQuery, SQL Analytics, Cloud Data Warehousing
Data Engineering	Google BigQuery	6	Google Cloud BigQuery, SQL Analytics, Cloud Data Warehousing
Data Engineering	Data Proc	30	Hadoop, Spark, Cloud Data Processing
Data Engineering	Cloud Composer	30	Apache Airflow, DAG, DAG Development, Workflow Orchestration
Data Engineering	Kafka	123	Brokers, Consumers, Partitions, Producers, Streams API, Zookeeper
Data Engineering	RabbitMQ	96	Message Queuing, Consumers, Producers, Routing
Data Engineering	Message Queues	2	Kafka, RabbitMQ, Producers, Consumers
Data Engineering	Internet of Things	197	IoT Applications, IoT Communication, IoT Concepts, IoT Data, IoT Hardware, IoT Security
Data Engineering	Industrial Internet of Things	30	IIoT Architecture, IIoT Concepts, Edge Analytics
Data Engineering	Internet of Everything	60	IoT Applications, IoT Communication, IoT Concepts
Data Engineering	IoT Security	6	Data Security, Data Privacy, Secure Communication
Data Engineering	Edge Computing	31	Edge Analytics, IoT Hardware, Real-Time Processing
Data Engineering	Zigbee	30	IoT Communication, IoT Hardware, Wireless Protocols
Data Engineering	Sensor Networks	30	IoT Communication, IoT Concepts, IoT Data, IoT Hardware
Data Engineering	Master Data Management	30	MDM Architecture, MDM Concepts, MDM Fundamentals, MDM Implementation, MDM Integration
Data Engineering	Reltio	5	MDM Architecture, MDM Concepts, MDM Implementation
Data Engineering	Data Security & Privacy	28	Data Loss Prevention, Data Privacy, Data Protection
Data Engineering	MongoDB	172	NoSQL, Document Storage, Aggregation, Indexing, Replication
Data Engineering	Neo4j	2	Graph Database, Graph Queries, Cypher, Relationships
AI Ethics & Evaluation	AI Ethics	36	Alignment, Governance, Policy, Transparency, Empathetic AI, Ethical Frameworks, Ethical Governance, Safety
AI Ethics & Evaluation	Explainable AI	30	Causal Inference, Interpretability, LIME, SHAP, Saliency Maps, Shapley Values, Grad CAM, Counterfactual Explanations, Partial Dependence Plots, Permutation Importance
AI Ethics & Evaluation	Risk Assessment	32	Risk and Compliance, Risk Management, Bias Detection
AI Ethics & Evaluation	Regulatory Knowledge	35	Ethical Frameworks, Ethical Governance, Compliance Management
AI Ethics & Evaluation	Compliance Management	36	Risk and Compliance, Regulatory Knowledge, Audit
AI Ethics & Evaluation	Risk and Compliance	30	Risk Assessment, Compliance Management, Regulatory Knowledge
AI Ethics & Evaluation	Phishing Investigations	30	Data Security, Threat Detection, Security Analysis
AI Ethics & Evaluation	Quantum Computing	30	Quantum Bits, Quantum Circuits, Quantum Gates, Quantum Mechanics, Quantum Error Correction, Quantum Entanglement, Qubits, Quantum Simulation
AI Ethics & Evaluation	Quantum Algorithms	36	Algorithm Implementation, Approximate Optimization, Grover Algorithm, Shor Algorithm, QAOA, QFT, Amplitude Amplification, Eigenvalue Estimation
AI Ethics & Evaluation	Quantum Machine Learning	36	QNN, Quantum Neural Networks, Quantum Deep Learning, Quantum Backpropagation, Quantum Clustering, Quantum Kernel Methods, QSVM, Quantum Feature Maps, Quantum Data Science
AI Ethics & Evaluation	Quantum Cryptography	30	Key Distribution, Resistant Algorithms, Secure Direct Communication, QKD, QSDC, BB84 Protocol, Cryptanalysis, Digital Signatures
AI Ethics & Evaluation	Quantum Programming	30	Programming Languages, Code Development, Development Framework, Hardware Programming, Software Development, Quantum Coding
AI Ethics & Evaluation	Qiskit	30	Algorithms, Applications, Architecture, Backend, Circuits, Components, Development, Framework, Jobs, Optimization, Structure