Achieving AWS Certified Solutions Architect - Professional certification validates that you have advanced technical skills and experience in designing distributed applications and systems on the AWS platform. It also confirms that you understand the concepts of:

• Designing and deploying dynamically scalable, highly available, fault-tolerant and reliable applications on AWS.
• Selecting appropriate AWS services to design and deploy an application based on given requirements.
• Migrating complex, multitier applications on AWS.
• Designing and deploying enterprise-wide scalable operations on AWS.
• Implementing cost control strategies.

Before attempting the AWS Certified Solutions Architect - Professional exam, you should have the following required knowledge and skills:

AWS Knowledge and Experience

• AWS core services, including Compute and Networking, Storage and CDN, Database, Application Services, Deployment and Management.
• Security features that AWS provides and best practices.
• Ability to design and implement for elasticity and scalability.
• Network technologies as they relate to AWS networking, including DNS and load balancing, Amazon Virtual Private Cloud (VPC) and AWS Direct Connect.
• Storage and archival options.
• State management.
• Database and replication methodologies.
• Self-healing techniques and fault-tolerant services.
• Disaster recovery and failover strategies.
• Application migration plans to AWS.
• Network connectivity options.
• Deployment and management.

General IT Knowledge and Experience

• Large-scale distributed systems architecture.
• Eventual consistency.
• Relational and non-relational databases.
• Multitier architectures: load balancers, caching, web servers, application servers, networking and databases.
• Loose coupling and stateless systems.
• Content delivery networks.
• System performance tuning.
• Networking concepts, including routing tables, access control lists, firewalls, NAT, HTTP, DNS, TCP/IP and OSI model.
• RESTful Web Services, XML, JSON.
• One or more software development models.
• Information and application security concepts, including public key encryption, remote access, access credentials and certificate-based authentication.