Teach Cloud - Cloud, DevOps, and Python Backend Development Blog

❓ Quiz Question

Aug 12, 2026

Quiz: In cloud observability, how do Prometheus and Grafana complement each other?

Prometheus acts as the time-series metric collector and alerting engine, while Grafana provides rich visualization dashboards.

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❓ Quiz Question

Aug 12, 2026

Quiz: Which Kubernetes Service type exposes a service externally using a cloud provider load balancer?

A LoadBalancer service type automatically provisions an external cloud load balancer (e.g. AWS ALB/NLB) and routes public traffic to the backend Pods.

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❓ Quiz Question

Aug 12, 2026

Quiz: How does Docker image layer caching work when executing a Dockerfile?

Docker executes Dockerfile commands sequentially and checks its build cache; if a layer changes (e.g. COPY . ), all following layers must be rebuilt .

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❓ Quiz Question

Aug 12, 2026

Quiz: What is a Blue/Green Deployment strategy?

Blue/Green deployments minimize downtime and risk by spinning up the new release alongside the current version and flipping traffic at the router once validated.

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❓ Quiz Question

Aug 12, 2026

Quiz: What is Helm in the Kubernetes ecosystem?

Helm streamlines Kubernetes application management by packaging resource definitions into reusable, version-controlled Charts .

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Aug 12, 2026

Quiz: What is a Container Runtime (e.g. <code>containerd</code>, <code>CRI-O</code>)?

A Container Runtime handles the lifecycle of containers on a node, interacting with Linux cgroups and namespaces to isolate processes.

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❓ Quiz Question

Aug 12, 2026

Quiz: What is the function of a Kubernetes Ingress Controller?

An Ingress Controller (like Nginx Ingress or Traefik) acts as a reverse proxy managing external layer-7 access to internal Kubernetes services.

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❓ Quiz Question

Aug 12, 2026

Quiz: What is the primary difference between Docker Volumes and Bind Mounts?

Docker Volumes are isolated and managed within Docker's storage area ( /var/lib/docker/volumes/ ), while Bind Mounts mount explicit host directories directly.

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