Architecting on AWS Certification Study Guide 2026
Everything you need to pass the Architecting on AWS Certification exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Architecting on AWS Certification Exam Format at a Glance
📚 Architecting on AWS Certification Topics to Study (69)
✍️ Sample Architecting on AWS Certification Questions & Answers
1. What type of weld discontinuity is described as a planar defect running parallel to the fusion line, caused by poor inter-run fusion during multi-pass welding?
Cold lap (lack of inter-run fusion) occurs when the previous weld bead is not fully remelted, creating a planar, unbonded interface that acts as a severe stress concentrator.
2. Which VPC feature allows two VPCs to route traffic between each other using private IPv4 or IPv6 addresses, as if they were within the same network?
VPC Peering creates a networking connection between two VPCs enabling instances to communicate using private IP addresses, but it is non-transitive and limited to two VPCs per connection.
3. What welding defect is characterized by a groove melted into the base metal adjacent to the weld toe that is not filled by weld metal?
Undercut is a groove or channel melted into the base metal at the weld toe caused by excessive amperage, improper electrode angle, or travel speed, creating a stress concentration.
4. Which AWS service provides automated security assessments to identify vulnerabilities and deviations from best practices in EC2 instances and applications?
Amazon Inspector automatically assesses applications for exposure, vulnerabilities, and deviations from best practices.
5. An architect wants to improve the read performance of a relational database without scaling the primary instance. Which AWS solution achieves this?
RDS Read Replicas asynchronously replicate data from the primary and allow read-heavy workloads to offload queries, improving overall throughput without upgrading the primary instance.
6. Which EC2 purchasing option offers up to 90% discount compared to On-Demand pricing in exchange for a flexible one- or three-year commitment to a specific instance family and Region?
Compute Savings Plans offer up to 66% savings (EC2 Instance Savings Plans up to 72%) by committing to a consistent compute usage ($/hour) for 1 or 3 years with flexibility across instance families, sizes, and Regions.