
Cargando...
Master AWS certifications with thousands of practice questions. Start free with demo access, or unlock full access with AI Tutor that tracks every mistake and builds your personalized study roadmap.
Start free with 20 demo questions per certification, or unlock full access from €24.99. Choose individual certifications or get unlimited access to everything.
| Feature | FREE | Single Cert €24.99 / 90 days | Pro €19.99/mo | All Access 🔥 €34.99/mo · €249/yr |
|---|---|---|---|---|
| Questions per certification | 20 demo | Unlimited | Unlimited | Unlimited |
| Active certifications | Demo only | 1 cert | 2 (switch ∞) | All 12+ |
| Mock exams | ✗ | ✓ | ✓ | ✓ |
| 4 AI explanation modes | ✓ | ✓ | ✓ | ✓ |
| AWS Cheat Sheets | ✓ | ✓ | ✓ | ✓ |
| Progress tracking | ✓ | ✓ | ✓ | ✓ |
| AI Tutor | ✗ | 200 msgs/mo | 500 msgs/mo | Unlimited |
| Smart Review (SRS) | ✗ | ✓ | ✓ | ✓ |
| Future certifications | ✗ | ✗ | ✗ | ✓ |
Try 20 demo questions from any certification. No time limits, no hidden fees, no credit card required. Upgrade for full access.
Every question comes with 4 ways to understand it — simple breakdown, side-by-side compare, real code example, and real-world story. Pick the one that makes it click for you.
Questions you struggle with appear more frequently. Master a topic and it appears less often, optimizing your study time for maximum retention.
Ask anything about AWS in natural conversation. AI Tutor knows your weak areas, reads your performance data, and gives targeted answers — not generic ones. Available on every page. Write in Spanish, French, German, or any language — it replies in kind.
Exam-focused reference cards covering every AWS service, comparison, and topic. Generated from official AWS docs and validated for accuracy. Your go-to reference before, during, and after practice sessions.
Start free with demo access, then unlock full access with flexible plans starting at €24.99
Try 20 demo questions from any AWS certification. No credit card required.
"Which service provides the best scalability for unpredictable traffic?"
Buy single certifications (€24.99/90d) or get unlimited access from €19.99/mo with AI Tutor for personalized learning.
For you: Think of auto-scaling like a restaurant automatically adding tables during rush hour...
See your weak areas, get Smart Review reminders, and watch your knowledge grow with detailed analytics.
Practice Mode: 4 explanation modes
Chat Mode: Ask anything about AWS concepts anytime
🌍 Chat in any language — AI Tutor replies in English, Spanish, French, German, Portuguese, or whatever language you write in. Question explanations are in English, but your study conversations don't have to be.
Which AWS service automatically adjusts the number of EC2 instances based on demand?
Choose your preferred learning style
Understanding the right approach
EC2 Auto Scaling is the correct answer because it automatically adjusts the number of EC2 instances based on demand. Auto Scaling monitors your application and automatically adds or removes instances to maintain performance and minimize costs. This service is essential for handling unpredictable traffic patterns. When demand increases, Auto Scaling launches additional instances. When demand decreases, it terminates unnecessary instances, ensuring you only pay for what you need.
Auto Scaling uses CloudWatch metrics (like CPU utilization or custom metrics) to trigger scaling actions. You can configure target tracking policies, step scaling, or scheduled scaling to match your application's needs.
With manual scaling, you must manually launch or terminate instances, which can take minutes or hours. This approach is inefficient for handling sudden traffic spikes and often results in over-provisioning to handle peak loads, wasting money during off-peak hours.
While ELB is crucial for distributing traffic across multiple instances, it doesn't add or remove instances automatically. You still need Auto Scaling to adjust capacity. ELB and Auto Scaling work together - ELB distributes traffic while Auto Scaling manages capacity.
CloudWatch collects and tracks metrics, but it's only the monitoring component. You need Auto Scaling to act on those metrics. CloudWatch provides the data (CPU usage, network traffic), while Auto Scaling makes the scaling decisions based on that data.
Start free with 20 demo questions per certification, then unlock full access with flexible plans
Start Free Demo →No credit card required • Plans from €24.99 • AI Tutor included
3,800+ practice questions. 12 certifications. Personalized AI tutor. Smart review system.
Compare what others charge vs CertAITutor
Total Value: €200-400+ • CertAITutor: Starting at €24.99
€249/year • €0.68/day
Best for serious AWS engineers
Get all 12 certifications for less than €21 each
Everything you need to know about our plans and features