AWS architecture principles
Design architectures with independent components. The looser they’re coupled, the larger they scale.
Design for failure and nothing will fail.
Architectural principle: build security in every layer.
Principle of least privilege
The certification of cloud computing Architect (SAA-C01) launched by AWS has associate level and professional level. Candidates can make an appointment for the test through the website of AWS Certification Center. And candidates can choose the test site which is close to them. The main objective of the certification is to verify that the architect can collect requirements and use best practices to build the system in AWS. This article focuses on the review methods and the latest key examination content.
Review methods and learning materials
The official study guide, AWS Certified Solutions Architect Official Study Guide is very important, candidates can download it, print it, or buy it. And they need to read it carefully. The exercises at the end of each chapter are used to test the degree of understanding. Candidates can mark wrong questions with colored pens. Finally, they can check the wrong questions together.
The white paper is very good information, it is recommended to read carefully, https://aws.amazon.com/whitepapers/.
White papers that candidates should focus on:
Overview of Amazon Web Services
Architecting for the Cloud
AWS well-architected framework
AWS Virtual Private Cloud Connectivity Options
Serverless Applications Lens
High-Performance Computing Lens
Key test points
The test points involved in many questions in the examination:
1. EC2. Use of several instances, such as Spot and On-Demand.
2. Storage. S3, EBS, EFS, respectively applicable satiation.
S3 encryption method, Server side, Client-side, and KMS;
S3 pre-sign URL, S3 storage type, Infrequent access.
Situations where several types of EBS are applicable.
3. Database. Aurora，Multi-AZ， DynamoDB，No-SQL can be used to store key-value data.
DynamoDB Accelerator. (DAX) is a memory cache that can read data quickly.
DynamoDB is used for game user state preservation and can provide millions of concurrent users.
AWS Redis can use Redis Auth to strengthen security, and users need to enter a password
4. ELB，Elastic Cache，ELB
6. VPC, subnet, public subnet
Private Link, Direct Link.
7. ACL. Security Group, instance level, subnet level
8. CloudWatch. Use Event to make Lambda function run.
Benefits of AWS certification
Can prove that individuals have the ability to design, deploy and manage high availability, low cost, and secure applications on the AWS platform
Earn respect and recognition at work or in the community
Can put certification in your resume, and the AWS certification badge is integrated into LinkedIn
Can make greater progress in a career, which is beneficial to personal and professional development
Have the approval of service and tools on AWS
Reduce the risk of AWS project implementation
Increase customer satisfaction
You need to register online to find a test center that is closer and more convenient for yourself
You need to bring your ID card to prove yourself
Mobile phones are not allowed to enter the venue
There must be a photo on the ID
Sign NDA to ensure that the test questions will not be disclosed
Computer mid-course test at the test center (80 minutes, 55 test questions)
You will know the score and whether you passed the test immediately after the test (you will not see whether each question is correct)
Results and certification certificates will be sent to the email address after passing
The emphasis of the AWS Certified Solutions Architect- Associate is: mastery of single service and small-scale composite service
All questions are multiple-choice (multiple choice or single choice)
You can label uncertain questions and come back to change your answer before submitting them
Preparation for the AWS Certified Solutions Architect exam
Master at least 1 high-level language (c, c+, java, etc.)
Master the AWS white paper
According to customer needs, experience in deploying hybrid systems using AWS components
Use the AWS Architecture Center website to learn more
Suggestions for exam preparation
AWS Certified Solutions Architect- Associate
At least 6 months of practical operating experience, experience in managing production systems in AWS
Learned the basic courses of AWS
AWS Certified Solutions Architect- Professional
At least 2 years of practical operation experience, experience in managing a variety of different types of complex production systems in AWS (multiple services, dynamic scaling, high availability, refactoring or fault tolerance)
Ability to execute construction in AWS, advanced conceptual capabilities of architecture