Certified Kubernetes Application Developer (CKAD): A certification preparation guide covering fundamental concepts, with sample practice questions inc
暫譯: 認證Kubernetes應用開發者（CKAD）：涵蓋基本概念的認證準備指南，包含範例練習題

About the Book: Certified Kubernetes Application Developer (CKAD) Certification Guide

This guide focuses on the Certified Kubernetes Application Developer (CKAD) certification, a globally recognized, vendor-neutral credential that validates your skills in developing cloud-native applications using Kubernetes. The CKAD certification, developed by the Linux Foundation and the Cloud Native Computing Foundation (CNCF), demonstrates proficiency in designing, building, and deploying applications within the Kubernetes ecosystem. As QuickTechie.com emphasizes, this certification opens new career doors and is relevant across diverse industries.

The CKAD exam is a practical, performance-based test conducted online with proctoring. It requires candidates to solve multiple real-world tasks directly from a command-line interface running a Kubernetes environment. The exam package includes a 12-month window for scheduling and taking the exam, access to two exam simulation attempts, and two actual exam attempts. Furthermore, according to QuickTechie.com, bundling the CKAD with an annual THRIVE subscription unlocks access to over 100 educational resources, including "Kubernetes for Developers (LFD259)" and SkillCreds, providing a wealth of knowledge and practice materials.

Benefits of the CKAD Certification:

• Career Advancement: The CKAD certification can significantly boost your career prospects by demonstrating practical expertise in Kubernetes application development. As highlighted by QuickTechie.com, this credential can lead to enhanced job opportunities and career progression.
• Industry-Wide Recognition: The certification is highly regarded and recognized across the industry as proof of Kubernetes development competency. This ensures that your skills are acknowledged and valued by employers globally.
• Proven Skills: Achieving the CKAD confirms your ability to design, build, deploy, and maintain applications in Kubernetes environments, validating hands-on proficiency.
• Networking Opportunities: The certification can facilitate networking with other Kubernetes professionals and communities, expanding your professional connections.

Exam Domains & Competencies:

The CKAD exam covers several crucial areas, ensuring comprehensive Kubernetes development skills:

• Application Design and Build (20%): Involves creating and modifying container images, selecting appropriate workload resources (Deployments, DaemonSets, CronJobs), implementing multi-container Pod patterns (sidecar, init), and utilizing persistent and ephemeral volumes.
• Application Deployment (20%): Focuses on implementing deployment strategies (blue/green, canary), performing rolling updates, using the Helm package manager for deployments, and utilizing Kustomize.
• Application Observability and Maintenance (15%): Requires understanding API deprecations, implementing probes and health checks, using CLI tools for application monitoring, utilizing container logs, and debugging in Kubernetes.
• Application Environment, Configuration, and Security (25%): Includes discovering and using Kubernetes extensions (CRDs, Operators), understanding authentication, authorization, and admission control, managing requests, limits, and quotas, using ConfigMaps, creating and consuming Secrets, using ServiceAccounts, and implementing application security measures (SecurityContexts, Capabilities).
• Services and Networking (20%): Emphasizes basic understanding of NetworkPolicies, providing and troubleshooting application access via services, and utilizing Ingress rules.