AWS certification
I just passed the AWS Certified Solutions Architect – Associate exam! SAA-C03.
I am very happy with that, I will share some tips and tricks that helped me to succeed in this journey.
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Tips and tricks AWS Solutions Architect Associate #3
Cloud Front CloudFront Functions These two types of functions can be executed during the processing of incoming or outgoing requests in AWS, and are integrated within CloudFront. cloud functions javascript < 1 ms cache key header rewrite no access to resource like subnet, database lambda edge functions change request and response 5-10s access to…
Tips and tricks AWS Solutions Architect Associate #8
RDS aurora serverless 15 read replicas/3AZ read replicas are not the same as Disaster Recovery Multi AZ is not the same as multi region By default, RDS is not multi AZ multi AZ cross regions does not exist for RDS, only for Aurora it exists aurora endpoint storage autoscaling RDS proxy <=> connection pool maintenance:…
Tips and tricks AWS Solutions Architect Associate #12
Big Data & Analytics Services EMR (Elastic MapReduce): Managed Hadoop/Spark for big data. Glue: ETL service (extract, transform, load). DataBrew: No-code data cleaning/transformations. Streaming ETL: Real-time processing. Bookmarks: Avoid reprocessing, track processed data. QuickSight: BI (dashboards, analytics), integrates with Spectrum for querying data in S3. AWS Well-Architected 6 Pillars Sustainability – efficient use of resources….
Tips and tricks AWS Solutions Architect Associate #10
inesis (KDS, Firehose, Analytics) Kinesis Data Streams (KDS): Real-time data streaming; replayable up to 7 days. Kinesis Firehose: Delivers streaming data to S3, Redshift, or HTTP endpoints (fully managed, no storage). Kinesis Data Analytics: Real-time (RT) analytics on streaming data. EventBridge: Event bus that integrates AWS services with third-party apps. Autoscaling: Adjusts shard capacity automatically….
hackaton 2025
I recently took part in a hackathon at work. Here’s the idea I presented. I called my project Dentaface. The goal of this project is to automate the detection of dental cavities with X-ray images or pictures using a deep learning model (Detectron2 RetinaNet) and expose it via a FastAPI-based backend. It enables real-time caries…
Endpoints and identifier keys
What is the problem we are addressing? The act of receiving keys from REST requests coming from the outside world into an application presents a well-known security issue. Indeed, if a hacker understands the logic behind the keys, for example, GET:customerInfo?id=23, they could easily access information about other customers by simply modifying the identifier value….