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update quiz
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‎.github/workflows/validate-yaml.yml‎

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name: Validate YAML & Lint
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on:
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push:
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branches: [main]
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pull_request:
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branches: [main]
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jobs:
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validate:
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name: Validate Kubernetes YAML
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Install kubeconform
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run: |
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curl -sL https://github.com/yannh/kubeconform/releases/latest/download/kubeconform-linux-amd64.tar.gz | tar xz
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sudo mv kubeconform /usr/local/bin/
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- name: Validate skeleton YAML files
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run: |
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echo "Validating skeletons/"
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for f in skeletons/*.yaml; do
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echo " Checking $f..."
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kubeconform -strict -summary "$f"
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done
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- name: Validate exercise YAML (embedded in READMEs)
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run: |
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echo "Extracting and validating YAML from exercise READMEs..."
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for readme in exercises/*/README.md; do
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echo " Scanning $readme for YAML blocks..."
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# Extract yaml blocks and validate individually
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awk '/^```yaml/{flag=1; next} /^```/{if(flag) {print "---"; flag=0}} flag' "$readme" > /tmp/extracted.yaml
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if [ -s /tmp/extracted.yaml ]; then
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kubeconform -summary -ignore-missing-schemas /tmp/extracted.yaml || true
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fi
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done
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markdown-lint:
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name: Lint Markdown
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Lint markdown files
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uses: DavidAnson/markdownlint-cli2-action@v19
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with:
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globs: |
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README.md
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exercises/**/*.md
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CONTRIBUTING.md
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continue-on-error: true

‎TRAFFIC_STRATEGY.md‎

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# Growth Strategy — Making This the #1 CKAD Repo
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Actionable checklist to maximize reach, stars, and traffic.
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## Phase 1: Content Completeness (Week 1-2)
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- [ ] Add Exercise 11: StatefulSet (stable identity, headless Service, persistent storage)
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- [ ] Add Exercise 12: DaemonSet (node-level logging agent, tolerations)
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- [ ] Add Exercise 13: Init Containers (dependency checks, migration runners)
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- [ ] Add Exercise 14: In-Place Pod Vertical Scaling (new in v1.35 GA)
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- [ ] Add difficulty badges to every exercise README (`Easy` / `Medium` / `Hard`)
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- [ ] Add `verify.sh` scripts to exercises (automated answer checking)
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- [ ] Create Anki deck export (.apkg) of key kubectl commands + YAML patterns
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## Phase 2: CI/CD & Quality Signals (Week 1)
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- [x] GitHub Actions: validate all skeleton YAML with kubeconform
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- [x] GitHub Actions: lint markdown files
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- [ ] Add badges to README: build passing, YAML valid, last commit, stars count
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- [ ] Add `.markdownlint.json` config for consistent formatting
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## Phase 3: SEO & Discoverability (Week 2)
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- [ ] Set GitHub repo **description**: `CKAD Exam 2026 — Practice Questions, Mock Exam, Exercises & Study Guide | Kubernetes v1.35 | Scored 91%`
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- [ ] Set GitHub **topics**: `ckad`, `kubernetes`, `ckad-exam`, `ckad-exercises`, `kubernetes-certification`, `ckad-2026`, `ckad-practice`, `kubectl`, `cncf`, `ckad-study-guide`, `gateway-api`
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- [ ] Set **website** field to blog post URL
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- [ ] Enable GitHub Pages (render README as searchable site)
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- [ ] Add `<meta>` SEO in GitHub Pages `_config.yml`: title, description, keywords
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- [ ] Cross-link: blog → repo, repo → blog (done), LinkedIn → repo
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- [ ] Submit to Google Search Console once Pages is live
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## Phase 4: Community & Social Proof (Week 2-3)
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- [ ] Enable GitHub Discussions (Q&A, exam results sharing, study groups)
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- [ ] Add "Contributors" section to README with `all-contributors` bot
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- [ ] Add Star History badge from `star-history.com`
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- [ ] Add "If this helped, star the repo" CTA at top AND bottom of README
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- [ ] Create issue templates: bug report, exercise request, content update
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## Phase 5: Distribution Blitz (Week 3)
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- [ ] **Reddit**: Post to r/kubernetes, r/devops, r/CKAD, r/sysadmin — angle: "Scored 91%, open-sourcing my complete CKAD prep (K8s v1.35, Gateway API)"
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- [ ] **Hacker News**: "Show HN: CKAD Study Guide — scored 91%, open-sourced"
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- [ ] **Dev.to**: Write article "How I Passed CKAD 2026 with 91% — Complete Open Source Study Guide"
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- [ ] **LinkedIn**: Write post with exam score card image
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- [ ] **Twitter/X**: Thread — "I just passed CKAD with 91%. Here's everything I used (open source):" with 10-tweet breakdown
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- [ ] **YouTube**: Record 5-10 min overview walkthrough of the repo + exercises
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- [ ] **Discord**: Post in Kubernetes, CNCF, DevOps Discord servers
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## Phase 6: Backlinks & Partnerships (Week 3-4)
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- [ ] Email/DM authors of popular "How I passed CKAD" blog posts — ask to link this repo
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- [ ] Submit to awesome-kubernetes / awesome-ckad lists
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- [ ] Reach out to Killercoda — propose integration or cross-link
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- [ ] Create a PR to `kubernetes/community` repo linking this as a study resource
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- [ ] Comment on Stack Overflow CKAD questions with link to repo (where relevant and helpful)
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## Phase 7: Unique Features (Ongoing)
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- [x] Interactive quiz script (`scripts/quiz.sh`)
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- [ ] Exam simulator: bash script that deploys kind cluster + presents 17 timed questions
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- [ ] PDF export of the README (for offline study)
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- [ ] Flashcard mode in terminal (kubectl commands + expected output)
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- [ ] Weekly automated check that Kubernetes version references are current
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## Competitive Analysis
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| Repo | Stars | Weakness | Our Advantage |
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|------|-------|----------|---------------|
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| dgkanatsios/CKAD-exercises | 8k+ | Outdated (v1.28), no Gateway API, no mock exam | Current v1.35, Gateway API, full mock exam |
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| bmuschko/ckad-crash-course | 2k+ | Minimal explanations, no exam tips | Deep exam strategy, mistakes section, PSI tips |
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| lucassha/CKAD-resources | 1k+ | Link collection only, no original content | Full original content, exercises, skeletons |
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## Key Metrics to Track
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- GitHub stars (weekly)
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- Google ranking for "CKAD study guide 2026"
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- README page views (GitHub Insights → Traffic)
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- Blog post organic traffic
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- Reddit/HN post engagement
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- Contributors count

‎scripts/quiz.sh‎

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#!/usr/bin/env bash
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# CKAD Quick Quiz — Terminal-based random practice questions
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# Usage: bash scripts/quiz.sh
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# Requires: a running Kubernetes cluster (kind, minikube, or remote)
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set -euo pipefail
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GREEN='\033[0;32m'
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RED='\033[0;31m'
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YELLOW='\033[1;33m'
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CYAN='\033[0;36m'
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BOLD='\033[1m'
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NC='\033[0m'
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QUESTIONS=(
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"Create a pod named 'quiz-pod' with image nginx in namespace 'quiz'. Expose port 80.|kubectl create namespace quiz --dry-run=client -o yaml | kubectl apply -f - && kubectl run quiz-pod --image=nginx --port=80 -n quiz|kubectl get pod quiz-pod -n quiz -o jsonpath='{.status.phase}'"
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"Create a ConfigMap named 'quiz-config' with key 'MODE=exam' in namespace 'quiz'.|kubectl create configmap quiz-config --from-literal=MODE=exam -n quiz|kubectl get configmap quiz-config -n quiz -o jsonpath='{.data.MODE}'"
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"Create a Deployment named 'quiz-deploy' with image nginx:alpine, 3 replicas, in namespace 'quiz'.|kubectl create deployment quiz-deploy --image=nginx:alpine --replicas=3 -n quiz|kubectl get deployment quiz-deploy -n quiz -o jsonpath='{.spec.replicas}'"
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"Create a Secret named 'quiz-secret' with key 'password=ckad2026' in namespace 'quiz'.|kubectl create secret generic quiz-secret --from-literal=password=ckad2026 -n quiz|kubectl get secret quiz-secret -n quiz -o jsonpath='{.data.password}'"
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"Create a ServiceAccount named 'quiz-sa' in namespace 'quiz'.|kubectl create serviceaccount quiz-sa -n quiz|kubectl get serviceaccount quiz-sa -n quiz -o jsonpath='{.metadata.name}'"
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"Create a Job named 'quiz-job' using image busybox that runs 'echo CKAD' in namespace 'quiz'.|kubectl create job quiz-job --image=busybox -n quiz -- echo CKAD|kubectl get job quiz-job -n quiz -o jsonpath='{.metadata.name}'"
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"Create a CronJob named 'quiz-cron' with schedule '*/5 * * * *' using image busybox that runs 'date' in namespace 'quiz'.|kubectl create cronjob quiz-cron --image=busybox --schedule='*/5 * * * *' -n quiz -- date|kubectl get cronjob quiz-cron -n quiz -o jsonpath='{.spec.schedule}'"
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"Create a Role named 'quiz-role' in namespace 'quiz' that allows get,list on pods.|kubectl create role quiz-role --verb=get,list --resource=pods -n quiz|kubectl get role quiz-role -n quiz -o jsonpath='{.metadata.name}'"
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"Scale the deployment 'quiz-deploy' to 5 replicas in namespace 'quiz'.|kubectl scale deployment quiz-deploy --replicas=5 -n quiz|kubectl get deployment quiz-deploy -n quiz -o jsonpath='{.spec.replicas}'"
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"Set the image of deployment 'quiz-deploy' to nginx:latest in namespace 'quiz'.|kubectl set image deployment/quiz-deploy nginx-alpine=nginx:latest -n quiz || kubectl set image deployment/quiz-deploy nginx=nginx:latest -n quiz|kubectl get deployment quiz-deploy -n quiz -o jsonpath='{.spec.template.spec.containers[0].image}'"
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)
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score=0
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total=0
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TIME_PER_QUESTION=300 # 5 minutes per question
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cleanup() {
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echo ""
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echo -e "${YELLOW}Cleaning up quiz resources...${NC}"
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kubectl delete namespace quiz --ignore-not-found --force --grace-period=0 2>/dev/null || true
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echo -e "${GREEN}Cleanup complete.${NC}"
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}
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show_score() {
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echo ""
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echo -e "${BOLD}═══════════════════════════════════════${NC}"
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echo -e "${BOLD} FINAL SCORE: ${score}/${total}${NC}"
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if [ "$total" -gt 0 ]; then
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pct=$((score * 100 / total))
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if [ "$pct" -ge 80 ]; then
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echo -e " ${GREEN}Excellent! You're exam-ready.${NC}"
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elif [ "$pct" -ge 66 ]; then
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echo -e " ${YELLOW}Passing range. Keep practicing.${NC}"
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else
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echo -e " ${RED}Below passing. Review weak areas.${NC}"
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fi
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fi
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echo -e "${BOLD}═══════════════════════════════════════${NC}"
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}
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trap cleanup EXIT
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echo -e "${BOLD}╔═══════════════════════════════════════╗${NC}"
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echo -e "${BOLD}║ CKAD Quick Quiz — Practice Mode ║${NC}"
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echo -e "${BOLD}║ ${TIME_PER_QUESTION}s per question, ${#QUESTIONS[@]} questions ║${NC}"
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echo -e "${BOLD}╚═══════════════════════════════════════╝${NC}"
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echo ""
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# Ensure quiz namespace exists
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kubectl create namespace quiz --dry-run=client -o yaml | kubectl apply -f - 2>/dev/null
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# Shuffle questions
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shuffled=($(shuf -i 0-$((${#QUESTIONS[@]}-1)) -n ${#QUESTIONS[@]} 2>/dev/null || seq 0 $((${#QUESTIONS[@]}-1))))
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for idx in "${shuffled[@]}"; do
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IFS='|' read -r question solution verify <<< "${QUESTIONS[$idx]}"
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total=$((total + 1))
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echo -e "${CYAN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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echo -e "${BOLD}Question ${total}/${#QUESTIONS[@]}:${NC}"
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echo -e "${YELLOW}${question}${NC}"
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echo ""
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echo -e "You have ${TIME_PER_QUESTION} seconds. Press ${BOLD}Enter${NC} when done (or type ${BOLD}skip${NC}):"
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start_time=$(date +%s)
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read -r user_input
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if [ "$user_input" = "skip" ]; then
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echo -e "${RED}Skipped.${NC}"
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echo -e " Solution: ${GREEN}${solution}${NC}"
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echo ""
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continue
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fi
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elapsed=$(( $(date +%s) - start_time ))
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if [ "$elapsed" -gt "$TIME_PER_QUESTION" ]; then
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echo -e "${RED}Time's up! (${elapsed}s)${NC}"
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else
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echo -e " Completed in ${elapsed}s"
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fi
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# Verify
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if eval "$verify" &>/dev/null; then
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result=$(eval "$verify" 2>/dev/null)
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if [ -n "$result" ]; then
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echo -e " ${GREEN}✓ CORRECT — Resource verified successfully${NC}"
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score=$((score + 1))
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else
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echo -e " ${RED}✗ NOT FOUND — Resource not created correctly${NC}"
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echo -e " Expected solution: ${GREEN}${solution}${NC}"
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fi
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else
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echo -e " ${RED}✗ VERIFICATION FAILED${NC}"
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echo -e " Expected solution: ${GREEN}${solution}${NC}"
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fi
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echo ""
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done
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show_score

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