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Johanne Christiansen

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The information about deactivating specific services was really useful. Thank you!

On Determining when and how to deploy AWS Control Tower (for example, which services must be deactivated for successful deployment)

Step Functions add a layer of visualization and state management, making complex workflows much easier to handle.

On Integrating event-driven networking functions

Just want to say thanks for the post! It was very informative.

On Orchestrate data ingestion pipelines (batch-based ML workloads and streaming-based ML workloads) – Amazon Kinesis , Amazon Kinesis Data Firehose , Amazon EMR , AWS Glue , Amazon Managed Service for Apache Flink

For those who have passed the SAP-C02 exam, how heavy was the focus on scaling methodologies?

On Scaling methodologies (for example, load balancing, auto scaling)

Can someone elaborate on how latency-based routing works in Route 53?

On High-availability features in Route 53 (for example, DNS load balancing using health checks with latency and weighted record sets)

Thanks, this really clarified the differences for me.

On Connectivity methods for AWS and hybrid networks (for example, Direct Connect gateway, Transit Gateway, VIFs)

I don't think the troubleshooting part was thorough enough.

On Managing routing protocols for AWS and hybrid connectivity options (for example, over a Direct Connect connection, VPN)

Thanks for breaking down the complexities of fault tolerance.

On Fault-tolerant design patterns (for example, retries with exponential backoff and jitter, dead-letter queues)

One way to optimize performance is by using indexed columns in your JOIN conditions. Also, try to avoid using SELECT…

On SQL queries (for example, SELECT statements with multiple qualifiers or JOIN clauses)

I’m a bit confused about the security implications of using a database proxy. Can anyone elaborate?

On Database connections and proxies

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