Memo of AWS Certified Solutions Architect - Professional (SAP-C01)

Memo of AWS Certified Solutions Architect - Professional (SAP-C01)

Takahiro Iwasa
(岩佐 孝浩)
Takahiro Iwasa (岩佐 孝浩)
3 min read
AWS Certification

I have successfully passed AWS Certified Solutions Architect - Professional (SAP-C01) exam. I will be sharing some tips on how to obtain this certification.

AWS Skill before Taking Exam

I have used AWS main services and passed Solutions Architect - Associate (SAA-C00) in March 2017.

When I took the Associate exam, my main goal was to pass it before my company’s AWS partner status expired. This time, I prioritized understanding the concepts behind cloud-native architectures.


I started considering taking the exam July 2019 and created a plan to take it in around September 2019. However, the exam was fully updated in February. Exam topics were changed and passing score was raised by about 10%. I could not find information on the new version, so my learning got stalled.

Fortunately, Jayendra’s Blog was updated for the new version and I could learn the topics covered by the exam.

AWS Official Practice Test

On October 13th, I took an AWS official practice test which cost 4,400 yen.

1.0  Design for Organizational Complexity: 0%
2.0  Design for New Solutions: 80%
3.0  Migration Planning: 75%
4.0  Cost Control: 50%
5.0  Continuous Improvement for Existing Solutions: 85%

Taking Exam

First Attempt

I took the exam on October 27th and failed with a score of 684 out of 1,000. Exam takers must answer 75 questions within 180 minutes. I struggled with time management, only answering 32 questions within the first 90 minutes.

Second Attempt

Reflecting on the first attempt, I followed my principle of “one question within two minutes” during the exam on December 8th, and passed with a score of 902 out of 1,000.

Reference Materials


Jayendra’s Blog

This was an excellent resource for understanding the exam topics. The content is well-organized, and I recommend following this guide from start to finish on your learning path.

AWS Official Documentation

Practice Tests

Udemy - AWS Certified Solutions Architect Professional Practice Exam

The in-depth explanations were useful and I could practice time management in Udemy platform.


I think I could get a picture of cloud-native architecture in AWS through this exam. Although the exam covers AWS services, the key concepts are not so different in Azure, GCP, or any other cloud platform.

Takahiro Iwasa
(岩佐 孝浩)

Takahiro Iwasa (岩佐 孝浩)

Software Developer at iret, Inc.
Architecting and developing cloud native applications mainly with AWS. Japan AWS Top Engineers 2020-2023