What Kubernetes feature keeps an application available during updates with no downtime?

Kubernetes Deployments use rolling updates to replace Pods gradually while keeping the application available.

Why should a Kubernetes Service be placed in front of Pods?

A Service provides a stable network endpoint and load-balances traffic across changing Pod IP addresses.

Which Kubernetes component routes HTTPS domain traffic to internal Services?

An Ingress, typically managed by an Ingress controller, applies host and path-based routing rules to Services.

Free Course Image Kubernetes for Beginners

Free online course Kubernetes for Beginners

Duration of the online course: 3 hours and 36 minutes

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Deploy apps confidently with Kubernetes: learn clusters, Pods, Services and routing in a free online course, plus exercises to boost your DevOps skills fast.

In this free course, learn about

Kubernetes core architecture: nodes, control plane, Pods, and scheduling basics
How Deployments manage replicas and enable rolling updates for zero/low downtime
Why Services front Pods: stable virtual IP/DNS and load-balancing across changing Pods
Differences among Service types: ClusterIP, NodePort, LoadBalancer, and their use cases
StatefulSet purpose and guarantees for stateful apps (stable IDs, storage, ordered rollout)
Recommended config management: declarative YAML manifests and apply/patch-based updates
etcd’s role as the control-plane key-value store for cluster state and configuration
Ingress basics: HTTPS, host/path routing rules to internal Services via an Ingress controller

About the free online course

Want to ship containerized applications with more confidence, less manual work, and fewer late-night surprises? This course helps you take the first solid step into Kubernetes, the industry standard for orchestrating containers at scale. You will learn how Kubernetes keeps applications running, distributes traffic, and supports growth from a single deployment to a resilient production-style setup.

Through guided explanations and hands-on exercises, you will build a clear mental model of what a cluster is and how the control plane and worker nodes cooperate to run workloads. You will see how Pods package and run your containers, why deploying multiple replicas matters for reliability, and how Kubernetes maintains availability when a container crashes or a node becomes unhealthy. By focusing on the reasons behind each component, you will be able to troubleshoot more effectively and make better design choices as your projects evolve.

You will also understand how applications become reachable. Learn why placing a Service in front of Pods is a foundational pattern for stable networking, load balancing, and smooth updates. Then connect that foundation to real-world access needs like domains, HTTPS, and rule-based routing to internal services, so you can visualize how traffic flows from users to your app inside the cluster.

As you progress, you will get exposure to essential operational concepts such as defining resources in a maintainable way when configurations grow complex, and recognizing which parts of the system store and protect the cluster state. You will also learn how Kubernetes supports workloads that need stable identities and storage, an important distinction when deploying data services. By the end, you will be prepared to discuss Kubernetes fundamentals in interviews, collaborate more effectively with DevOps and platform teams, and start deploying your own projects with a production-minded approach.

Course content

Video class: Kubernetes Tutorial for Beginners [FULL COURSE in 4 Hours] 3h36m
Exercise: Which feature of container orchestration ensures an application stays accessible with no downtime?
Exercise: Why place a Service in front of a Pod?
Exercise: Which Kubernetes object is intended for deploying replicated stateful apps like databases?
Exercise: What is the recommended way to define and update resources with many settings?
Exercise: Which control plane component stores cluster state as a key value store?
Exercise: You want users to access an app via https and a domain, with rules routing to internal Services. Which component enables this?

Learn aboutDevOps

Explore free online DevOps courses, each with a certificate, and build job-ready skills in CI/CD, cloud computing, automation, containers, Kubernetes, Docker, Linux, Git, and infrastructure as code. Learn DevOps at your own pace with beginner-friendly and advanced training designed to boost your career and technical expertise.

Learn aboutKubernetes

Explore free online Kubernetes courses designed to help you master container orchestration, cluster management, deployments, scaling, security, and cloud-native tools. Learn at your own pace with beginner and advanced training, build job-ready DevOps skills, and earn a certificate upon completion—at no cost. Start learning Kubernetes today.