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Practice HSK, IELTS, TOEFL, SAT, GRE, AWS, PMP and 50+ exams with free questions, mock tests and structured courses.
GCP Professional Machine Learning Engineer Course
A structured GCP Professional Machine Learning Engineer course covering ML architecture, data pipelines, Vertex AI modeling, scalability, security, and MLOps, with linked practice questions.
AWS Advanced Networking Specialty Course
A structured AWS Advanced Networking Specialty course covering network design, VPC routing, hybrid connectivity, edge services, security and operations, with linked practice questions.
AWS DevOps Engineer Professional Course
A structured AWS DevOps Engineer Professional course covering CI/CD, infrastructure as code, configuration management, monitoring, security, and resilient architecture, with linked practice questions.
AWS Solutions Architect Professional Course
A structured AWS Solutions Architect Professional course covering organizational design, security, cost control, migration, reliability, and scalability, with linked practice questions.
AMC Foundations Course
A structured AMC course covering algebra, geometry, number theory, combinatorics, and contest strategy, with linked practice questions.
AWS Database Specialty Course
A structured AWS Database Specialty course covering database engines, design, operations, security, performance and migration, with linked practice questions.
AWS Developer Associate Course
A structured AWS Certified Developer Associate course covering core services, serverless, CI/CD, security, data, and monitoring with linked practice questions.
AWS Machine Learning Specialty Course
A structured AWS Machine Learning Specialty course covering data engineering, model training, security, deployment, monitoring, MLOps and optimization, with linked practice questions.
AWS Security Specialty Foundations
A structured AWS Security Specialty course covering threat detection, logging, infrastructure security, IAM, data protection, and governance, with linked practice questions.
AWS SysOps Administrator Foundations
A structured AWS SysOps Administrator course covering monitoring, reliability, deployment, storage, networking, and security, with linked practice questions.
Azure Administrator AZ-104 Course
A structured Azure Administrator AZ-104 course covering identity and governance, storage, compute, virtual networking, monitoring, backup, and cost management with linked practice questions.
Azure AI Engineer AI-102 Course
A structured Azure AI Engineer AI-102 course covering AI planning, computer vision, language, speech, Azure OpenAI, deployment and monitoring, with linked practice questions.
Azure AI Fundamentals AI-900 Foundations
A structured Azure AI-900 course covering AI fundamentals, machine learning, computer vision, NLP, generative AI, and responsible AI, with linked practice questions.
Azure Data Engineer DP-203 Foundations
A structured Microsoft DP-203 course covering storage, transformation, pipelines, security, monitoring, and Synapse, with linked practice questions.
Azure Data Fundamentals DP-900 Foundations
A structured Azure DP-900 course covering core data concepts, relational and non-relational data, analytics, visualization, and governance, with linked practice questions.
Azure Network Engineer AZ-700 Course
A structured Azure Network Engineer AZ-700 course covering hybrid networking, routing, private connectivity, security, monitoring and architecture, with linked practice questions.
Azure Security Engineer AZ-500 Course
A structured Azure Security Engineer AZ-500 course covering identity, platform protection, data protection, network security, security operations and governance, with linked practice questions.
Azure Solutions Architect Expert AZ-305 Foundations
A structured Azure AZ-305 course covering governance, storage, compute, networking, migration, and reliability, with linked practice questions.
Backend Interview Course
A structured backend interview course covering APIs, HTTP, databases, caching, queues, security, scaling, and system design with linked practice questions.
CEH Certified Ethical Hacker Foundations
A structured CEH course covering ethical hacking phases, reconnaissance, scanning, exploitation, web attacks, and security controls, with linked practice questions.
Certified Kubernetes Administrator Course
A structured Certified Kubernetes Administrator course covering cluster architecture, installation, workloads, scheduling, services, networking, storage, security, and troubleshooting with linked practice questions.
Cisco CCNA 200-301 Course
A structured Cisco CCNA 200-301 course covering network fundamentals, IP connectivity and services, security, automation, and troubleshooting with linked practice questions.
Cisco DevNet Associate Foundations
A structured Cisco DevNet Associate course covering software, APIs, automation, networking, security, and deployment, with linked practice questions.
CompTIA Network+ Foundations
A structured CompTIA Network+ course covering fundamentals, implementation, operations, security, and troubleshooting, with linked practice questions.
CompTIA Project+ Foundations
A structured CompTIA Project+ course covering fundamentals, life cycle, scope, resources, communication, and Agile, with linked practice questions.
Data Science Interview Course
A structured data science interview course covering statistics, probability, Python, pandas, SQL, machine learning, product metrics, and A/B testing with linked practice questions.
Frontend Interview Course
A structured frontend interview course covering JavaScript, HTML, CSS, React, browser behavior, performance, accessibility, and security with linked practice questions.
GCP Associate Cloud Engineer Course
A structured GCP Associate Cloud Engineer course covering core services, compute, storage, networking, security, and operations with linked practice questions.
GCP Cloud DevOps Engineer Foundations
A structured GCP Cloud DevOps Engineer course covering CI/CD, reliability, monitoring, security, deployment, and cost, with linked practice questions.
GCP Network Engineer Foundations
A structured GCP Network Engineer course covering VPC, load balancing, security, hybrid, observability, and optimization, with linked practice questions.
GCP Professional Cloud Architect Foundations
A structured GCP Professional Cloud Architect course covering architecture, compute, storage, networking, security, and reliability, with linked practice questions.
GCP Security Engineer Course
A structured GCP Security Engineer course covering identity, data protection, network security, workload security, operations and compliance, with linked practice questions.
GCP Data Engineer Course
A structured GCP Data Engineer course covering storage, pipelines, ML analytics, security, reliability and architecture, with linked practice questions.
Google Cloud Digital Leader Foundations
A structured Google Cloud Digital Leader course covering cloud concepts, infrastructure, data and ML, security, and operations, with linked practice questions.
Google Data Analytics Foundations
A structured Google Data Analytics course covering the data lifecycle, spreadsheets, SQL, R, Tableau, and dashboards, with linked practice questions.
ISEE Foundations Course
A structured ISEE course covering verbal, quantitative, reading, math achievement, and test strategy, with linked practice questions.
MCAT Foundations Course
A structured MCAT course covering biology, chemistry, psychology, CARS, and exam strategy, with linked practice questions.
Meta Blueprint Digital Marketing Course
A structured Meta Blueprint Digital Marketing Associate course covering campaign structure, objectives, targeting, creative, delivery, measurement, pixel, business tools, and privacy with linked practice questions.
Microsoft 365 Fundamentals MS-900 Foundations
A structured Microsoft MS-900 course covering cloud, apps, security, licensing, administration, and AI, with linked practice questions.
PHR / SPHR HR Certification Course
A structured PHR and SPHR course covering business strategy, workforce planning, talent development, compensation, employee relations, and risk with linked practice questions.
Power BI PL-300 Course
A structured Power BI PL-300 course covering the exam format, data preparation, data modeling and DAX, visuals and reports, and deployment and sharing with linked practice questions.
Power Platform Fundamentals PL-900 Foundations
A structured Microsoft PL-900 course covering Power Apps, Power Automate, Power BI, AI, Dataverse, and administration, with linked practice questions.
Salesforce Administrator Course
A structured Salesforce Administrator course covering the exam format, data model, security and sharing, automation, and reports and dashboards with linked practice questions.
Salesforce Platform App Builder Course
A structured Salesforce Platform App Builder course covering data model, app UI, security, automation, deployment and mobile, with linked practice questions.
SSAT Foundations Course
A structured SSAT course covering math, verbal, vocabulary, reading, and test strategy, with linked practice questions.
Tableau Desktop Specialist Course
A structured Tableau Desktop Specialist course covering data connection, preparation, visual analytics, calculations and filters, and dashboards with linked practice questions.
Terraform Associate Course
A structured HashiCorp Terraform Associate course covering core concepts, state and backends, resources and modules, and Terraform Cloud and CLI with linked practice questions.
TestDaF Exam Course
A structured TestDaF course covering exam format, reading, listening, writing, speaking, and strategy with linked German practice questions.
Azure Cloud Fundamentals Course
A structured beginner course covering Azure cloud concepts, core services, identity, governance, security, and cost management.
CompTIA A+ Core 1 Course
A structured CompTIA A+ Core 1 course covering the exam format, PC hardware and storage, networking, mobile devices, virtualization and cloud, and troubleshooting with linked practice questions.
CompTIA Security+ Foundations Course
A structured intermediate course covering CompTIA Security+ fundamentals: threats, vulnerabilities, cryptography, identity, network security, incident response, and compliance.
DELE B2 Spanish Proficiency Course
A free 5-lesson DELE B2 Spanish course covering B2 vocabulary and collocations, subjunctive grammar, reading and writing skills, and a complete four-prueba exam strategy with linked practice questions.
DELF B1 French Preparation Course
A free 5-lesson DELF B1 course covering test format, themed vocabulary, essential grammar, reading and listening skills, and a four-week practice plan, with French examples for self-study.
Docker & Kubernetes Foundations Course
A structured intermediate course covering Docker images, containers, volumes, networking, Compose, and core Kubernetes workloads, services, storage, and troubleshooting.
Duolingo English Test Preparation Course
A free 5-lesson Duolingo English Test course covering test format, core vocabulary, essential grammar, reading and listening skills, and a four-week practice plan, with English examples for self-study.
Google Cloud Fundamentals Course
A structured beginner course covering Google Cloud concepts, core services, data, networking, security, and pricing.
Google Ads Search Certification Foundations Course
A free 5-lesson Google Ads Search Certification foundations course covering account structure, keyword planning and match types, the auction and Quality Score, responsive search ads and extensions, plus conversion tracking and measurement.
IELTS Academic Reading Foundations Course
A structured intermediate course covering IELTS Academic Reading: skimming, scanning, vocabulary, paragraph structure, and exam strategy.
PMP Project Management Foundations Course
A structured intermediate course covering PMP foundations: process groups, scope, schedule, cost, quality, risk, stakeholders, and agile methods.
SAT Math Foundations Course
A structured beginner course covering SAT math foundations: algebra, problem solving, geometry, data analysis, and test strategy.
SAT Reading Foundations Course
A structured intermediate course covering SAT Reading: comprehension, vocabulary in context, evidence-based questions, text structure, and test strategy.
TOPIK I & II Korean Proficiency Course
A free 5-lesson TOPIK I and TOPIK II course covering test strategy, themed vocabulary, essential grammar, reading skills, and a four-week practice plan, with Korean examples and translations for self-study.
US Citizenship Civics Course
A structured US citizenship course covering the test format, American government, history, rights and responsibilities, national symbols, and interview practice with linked civics questions.
A-Level Maths Foundations Course
A free 5-lesson A-Level maths course covering algebra, functions, calculus, trigonometry, exponentials, logarithms, sequences and exam strategy with 80 linked practice questions.
ACT English & Math Foundations Course
Five lessons that build ACT skills: punctuation and sentence structure, usage and style, reading comprehension, algebra and data analysis, and geometry with test strategy.
Agile & Scrum Foundations Course
Five lessons that build Agile and Scrum skills: manifesto principles, roles, events, artifacts, planning, estimation, and scaling.
AP Calculus AB Foundations Course
A free 5-lesson AP Calculus AB course covering limits, continuity, derivatives, derivative applications, integrals and exam strategy with 80 linked practice questions.
AWS Solutions Architect Associate Foundations Course
A structured AWS SAA-C03 course covering global infrastructure, compute, storage, networking, databases, data services, security, cost optimization, and solution design with linked practice questions.
Cambridge A2 Key Foundations Course
A free 5-lesson Cambridge A2 Key course covering everyday vocabulary, simple grammar, reading notices and short texts, writing short messages and exam strategy.
Cambridge B1 Preliminary Foundations Course
A free 5-lesson Cambridge B1 Preliminary course covering vocabulary, grammar, reading tasks, writing skills and exam strategy with 80 linked practice questions.
Cambridge B2 First Foundations Course
A free 5-lesson Cambridge B2 First course covering grammar, vocabulary, Reading and Use of English, reading skills and exam strategy with 80 linked practice questions.
Cambridge C1 Advanced Foundations Course
A free 5-lesson Cambridge C1 Advanced course covering advanced grammar, vocabulary, reading and writing skills and exam strategy, with linked practice questions.
Cambridge C2 Proficiency Mastery Course
A free 5-lesson Cambridge C2 Proficiency course covering advanced vocabulary, grammar, reading and writing skills and exam strategy, with linked practice questions.
CFA Level 1 Foundations Course
A structured CFA Level 1 course covering the exam format, ethics, quantitative methods, economics, financial reporting, corporate issuers, portfolio management, fixed income, and equity investments with linked practice questions.
Chinese Character Foundations Course
A free structured beginner course for learning Chinese characters: components, radicals, stroke order, structure, and a review strategy linked to 80 practice questions.
CISSP Security Foundations Course
Five lessons that build CISSP foundations: governance, risk, asset security, architecture, cryptography, network security, IAM, operations, and secure development.
FRM Part 1 Foundations Course
A structured FRM Part 1 course covering risk foundations, quantitative analysis, financial markets and products, valuation and risk models, market risk, credit risk, operational risk, and liquidity risk with linked practice questions.
GCSE Maths Foundations Course
A free 5-lesson GCSE maths course covering number and ratio, algebra, geometry, statistics and probability, plus exam strategy and 80 linked practice questions.
GMAT Quantitative & Verbal Foundations Course
A free GMAT preparation course covering quantitative reasoning, data sufficiency, critical reasoning, sentence correction, and linked practice questions to help you master the GMAT Focus format and build a confident study routine.
GRE Verbal & Quantitative Foundations Course
Build the core skills and strategies you need for the GRE with five focused lessons on verbal reasoning, quantitative reasoning, and test-day planning. Each lesson pairs clear foundations with worked examples you can apply immediately.
HSK 1 Pinyin & Character Foundations Course
A beginner HSK 1 course covering pinyin, tones, characters, greetings, numbers, time, family, places, food, objects, and core verbs. Build sentence skills through authentic Chinese examples and a 100-question practice bank.
HSK 2 Vocabulary Foundations Course
Build practical HSK 2 vocabulary with pinyin, characters, particles, and everyday words. Work through 163 targeted questions across 5 lessons on daily life, family, education, and review strategy.
HSK 3 Mock Exam Foundations Course
A 5-lesson intermediate course covering HSK 3 exam format, essential grammar, everyday situations, and review strategy with 80 original mock exam questions.
HSK 4 Vocabulary & Grammar Foundations Course
A structured intermediate course for HSK 4: high-frequency vocabulary, verb patterns, connectors, sentence structures, and a review strategy linked to 80 practice questions.
HSK 5 Vocabulary & Grammar Course
A free 5-lesson HSK 5 course covering test format, advanced vocabulary, idioms, grammar, reading and writing, plus an eight-week practice plan linked to 80 questions.
HSK 6 Vocabulary & Grammar Course
A free 5-lesson HSK 6 course covering test format, advanced vocabulary, idioms, grammar, reading and writing, plus an eight-week practice plan linked to 80 questions.
IB Maths Foundations Course
A free 5-lesson IB Maths course covering algebra, functions, calculus, trigonometry, statistics, probability and exam strategy with 80 linked practice questions.
IELTS Listening Foundations Course
A free IELTS listening preparation course that builds the core skills tested in all four sections: question types, numbers and names, speaker intent, and note-taking. Each lesson links to practice questions so you can apply what you learn immediately.
JLPT N1 Vocabulary & Grammar Course
A free 5-lesson JLPT N1 course covering test format, advanced vocabulary, grammar, kanji, reading skills, and an eight-week practice plan, with example sentences for self-study.
JLPT N2 Vocabulary & Grammar Course
A free 5-lesson JLPT N2 course covering test format, vocabulary, grammar, kanji, reading skills, and a six-week practice plan, with example sentences for self-study.
JLPT N3 Vocabulary & Grammar Course
A free 5-lesson JLPT N3 course covering vocabulary, grammar, kanji, reading skills, and a four-week practice plan, with explanations and real example sentences for self-study.
JLPT N4 Vocabulary & Grammar Course
A free study course with 5 structured lessons covering N4 vocabulary, grammar, kanji, reading skills, and a four-week practice plan. Learn with clear explanations, real Japanese examples, and step-by-step guidance for the JLPT N4 exam.
JLPT N5 Foundations Course
A structured beginner course for the JLPT N5 test covering the exam format, core vocabulary, essential grammar and particles, kanji foundations, and a practical weekly review plan with linked practice questions.
LSAT Logical Reasoning Foundations Course
Five lessons that build LSAT Logical Reasoning skills: finding conclusions, identifying assumptions, strengthening and weakening arguments, recognizing flaws, and handling inferences, principles, roles, and paradoxes.
Mandarin Pinyin Foundations Course
A free structured beginner course for Mandarin pinyin: initials, finals, tones, syllable spelling, common words, and a review strategy linked to 80 practice questions.
NCLEX-RN Foundations Course
A structured NCLEX-RN course covering safe and effective care, health promotion, psychosocial integrity, physiological integrity, pharmacology, nursing fundamentals, maternity and newborn care, and pediatric nursing with linked practice questions.
Overseas Life Foundations Course
Five practical lessons that prepare you for living abroad: time zones, money, units, travel, transport, banking, renting, health, and everyday English.
PRINCE2 Foundation Basics Course
Five lessons that build PRINCE2 Foundation skills: principles, themes, processes, roles, management products, risk, change, and project closure.
Python Coding Interview Foundations Course
A structured Python course for coding interviews covering language fundamentals, data structures, functions and comprehensions, OOP and exceptions, plus algorithms and interview strategy with linked practice questions.
System Design Interview Foundations Course
A structured course covering interview roadmap, capacity estimation, scalability, databases, APIs, microservices, reliability, observability, and security with linked practice questions.
TOEFL iBT Foundations Course
A free TOEFL preparation course that builds reading, academic vocabulary, and integrated skills through five focused lessons with linked practice questions.
TOEIC Listening & Reading Foundations Course
A structured intermediate course for the TOEIC Listening & Reading test covering the exam format, workplace listening, business reading, sentence completion, and a practical weekly review plan with linked practice questions.
USMLE Step 1 Foundations Course
A structured USMLE Step 1 course covering exam strategy, foundational sciences, pharmacology, immunology, microbiology, pathology, oncology, clinical presentation, psychiatry, bioethics, genetics, and reproductive systems with linked practice questions.
AWS Cloud Practitioner Basics
A structured beginner course covering AWS cloud concepts, core services, security, and billing.
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