K8s Guide vs DevOps+Linux Cert Prep 8 Exams

K8s Guide is the complete way to learn Kubernetes - from your very first pod to Kubestronaut - and to pass all five Cloud Native certifications: CKA, CKAD, CKS, KCNA, and KCSA. Most Kubernetes apps are a static pile of flashcards. K8s Guide is built to make you actually understand Kubernetes, then prove it. LEARN IT - THE GUIDE A from-scratch path through Kubernetes, written for a phone screen instead of squeezed in from a website. 50 in-depth lessons across eight areas - Containers, Foundations, Workloads, Networking, Configuration, Security, Operations, and Ecosystem Tools - that build real understanding, absolute beginner to expert. • Starts before Kubernetes even begins: what a container is, how it differs from a VM, and why orchestration exists • Native diagrams drawn for mobile - traffic flows, control loops, and cluster architecture you can actually read on a phone, not pinch-to-zoom web images • Dense topics broken into clean tables, key-point lists, and step-by-step sequences instead of walls of text • Ecosystem Tools coverage beyond core Kubernetes - Argo CD, Istio, Prometheus, Cilium, Helm, Kustomize, cert-manager, OPA Gatekeeper, Kyverno, Falco, Trivy, and KEDA • Every concept explained in plain language, so it sticks PROVE IT - CERTIFICATION PREP All five CNCF certifications, fully built out, with 600+ practice questions and 160+ certification lessons across 30 exam domains. • Every quiz mixes multiple-choice with hands-on build tasks - fill in real YAML, assemble a kubectl command, order the steps, spot the bug - shuffled in like the real exam, not a separate mode • An adaptive quiz engine weights questions toward whatever you're getting wrong, so weak areas resurface instead of drilling what you already know • Study mode for instant feedback and explanations, or Test mode for a full exam simulation with results at the end • A mastery score per certification blends quiz accuracy with lesson coverage into a single readiness number - so you always know what to study next, and when you're actually ready EVERYTHING INCLUDED • The full Guide plus all five certification tracks - CKA, CKAD, CKS, KCNA, KCSA • Hands-on build questions mixed into every quiz, alongside multiple choice • Look Up - a fast reference search to find any concept, command, or term in seconds • Native, mobile-first diagrams throughout • Adaptive quizzing with per-certification readiness and weak-domain call-outs • A built-in Blog with the latest Kubernetes articles and release notes • Bookmark any lesson or question for later, synced across your devices • Home Screen widgets for your streak, active certification, and a rotating Kubernetes tidbit • Optional local study reminders on your own schedule • Kubestronaut badge tracking via your public Credly profile (entirely optional) • iCloud sync for progress, quiz history, and bookmarks - in your own private iCloud, not a server we run BUILT DIFFERENTLY, ON PURPOSE No account. No login. No data collection of any kind - your study data lives in your own iCloud and nowhere else. No ads, no paywalls, no subscriptions; every lesson and question is free. (There's an optional tip jar if you'd like to support development - but nothing is ever locked.) Kubernetes itself is open source, built on the idea that knowledge should be open to everyone. This app is built on the same idea. Whether you're chasing your first certification or going for the full Kubestronaut set, K8s Guide is built to get you there.

One purchase. Eight of the most in-demand DevOps, Linux, cloud and infrastructure certifications. 44,141 practice questions. No internet required. WHAT'S COVERED - CKA - Certified Kubernetes Administrator (CNCF / Linux Foundation) - HashiCorp Certified: Terraform Associate (004) - RHCSA - Red Hat Certified System Administrator (EX200) - RHCE - Red Hat Certified Engineer, Ansible automation (EX294) - CompTIA Linux+ (XK0-006) - Cisco CCNA (200-301) - ITIL 4 Foundation (PeopleCert / Axelos) - AWS Certified DevOps Engineer - Professional (DOP-C02) Every question, card and lesson is mapped to the official published domain structure for its exam - 188 topics and 655 subtopics in total - so you always know which blueprint objective you are drilling and where your weak spots sit. WHAT YOU GET - 44,141 multiple-choice questions. Four options each, a written rationale that explains why the right answer is right and the wrong ones are wrong, and a citation. - Full-length timed mock exams built to each issuer's published question count and time limit. - 12,000 spaced-repetition flashcards. - 2,400 Reels: swipeable four-slide text stories, each ending in a quick-check question. Perfect for a two-minute break. Text and diagrams only, nothing to stream. - 3,200 concept cards for deep dives on the topics people actually fail: etcd backup and restore, RBAC, state locking and drift, SELinux contexts, LVM, OSPF, VLANs and spanning tree, service value chains, blue/green and canary deploys. - 3,200-plus quick reference items: 600 command and tool cards (kubectl, ansible-playbook, terraform, systemctl, firewall-cmd, ip, show run), 800 mnemonics, 400 frameworks and models such as CI/CD, 400 key formulas, 1,000 study tips. - 2,000 glossary entries, searchable across all eight exams. - Audio Mode: roughly 2,000 narrated lessons with a title, outline and duration, spoken on device. Study on the commute, at the gym or during a deploy window. Nothing to download, no audio files to sync. - 704 Notable Figures: the engineers and thinkers behind this stack, from Brendan Burns on Kubernetes onward, each with their contribution and one key concept. - 704 ethics and governance scenarios drawn from real professional dilemmas, such as discovering unencrypted PII mid-migration with a deadline on top of you. HOW IT WORKS Pick an exam. Drill by topic, by subtopic, or turn yourself loose on a full timed mock. Missed questions land in a mistake bank you can re-run until they stick. Mastery is tracked per domain, so the app can tell you that you are strong on IP connectivity and thin on automation and programmability, instead of just handing you a score. Switch exams whenever you like. Progress is kept separately for each one, and it syncs across your devices. 100% OFFLINE All content ships inside the app. No signup, no account, no network calls, no ads, no tracking. It works in a basement data center, on a plane and inside a locked-down corporate network exactly as well as it works at home. IPHONE, IPAD AND MAC Purpose-built layouts for each: a tab bar on iPhone, a sidebar on iPad, a full desktop window on Mac. PRICING Free to download with a 3-day full-access trial. Every exam, every question, every mode is open during the trial. After that, a single purchase unlocks all eight certifications permanently. No per-exam upsells, no subscription treadmill, no drip-feeding content. BEFORE YOU BUY We are not affiliated with, endorsed by or sponsored by CNCF, the Linux Foundation, HashiCorp, IBM, Red Hat, CompTIA, Cisco, PeopleCert, Axelos or Amazon Web Services. All certification names and exam codes are trademarks of their respective owners and are used here only to identify the exams this study material covers. This app is independent study material and does not provide, reproduce or leak live exam content. Privacy Policy URL | https://c3rt.com/privacy/ Terms of Use (EULA) URL | https://c3rt.com/terms-of-service/