Courses from 1000+ universities
AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.
600 Free Google Certifications
Computer Science
IT & Networking
Cybersecurity
Ecology and Wildlife Conservation
Comprendere la filosofia
FinTech Ethics and Risks
Organize and share your learning with Class Central Lists.
View our Lists Showcase
AWS Skill Builder is an Amazon-hosted platform for developers to create, manage and deploy Alexa skills. It provides a range of resources and tools to help you build your skills quickly and easily.
Explore Amazon Quantum Ledger Database (QLDB): the service's purpose and benefits, how it works, typical use cases, and how it is billed.
Understand machine learning inference challenges and use cases, and how Amazon EC2 Inf1 instances, AWS Inferentia custom chips, and the AWS Neuron SDK address them.
Monitor and troubleshoot an Amazon Connect contact center with CloudWatch: explore Log Groups, build Insights queries, export logs to S3, and create alarms and dashboards.
Compare AWS game server hosting options — Amazon GameLift, FleetIQ Game Server Groups, ECS, EKS, Fargate, EC2 — against cost, latency, scaling and portability requirements to pick one.
Learn how Global Accelerator's accelerator IP addresses front your application for a more robust architecture, with a demonstration of setup and near-instantaneous failover between regions.
Migrate workloads to AWS with CloudEndure: learn its architecture and lifecycle, configure initial and continuous data replication, run migration steps, and troubleshoot replication failures.
Get oriented in Amazon Aurora: its purpose, benefits, use cases, billing, security strategies, key terminology, and integration with other AWS services, plus a service demonstration.
Explore AWS machine learning services for building, training, and deploying models at scale, plus deep learning, business decision-making, and moving data through the ML pipeline.
Learn how AWS Managed Services handles security: its shared responsibility model, principles like least privilege and just-in-time access, protective and detective control types, and governance and compliance.
Learn how decoupled application architectures work and how to pick between queues, topics, APIs, and event buses to integrate and orchestrate components.
Plan and implement AWS security services alongside traditional defenses to build a self-defending border that protects web-facing, mission-critical workloads from network attacks and intrusion attempts.
Get oriented in Amazon Redshift: its core features, terminology, integrations with other AWS services, use cases, security strategies, and billing, with a service demonstration.
Learn how AWS Config supports continuous resource assessment, security controls, and incident response across AWS environments.
Troubleshoot AWS Transit Gateway connectivity, performance, Connect, and multicast issues using configuration, monitoring, and diagnostic data.
Amazon DynamoDBのデータモデリング手法を、非正規化や項目コレクション、隣接リスト、グローバルセカンダリインデックスを通じて学ぶ。
Get personalized course recommendations, track subjects and courses with reminders, and more.