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  • in Guides
  • 6 min read

A visual comparison of AWS Certifications

Following my previous post, the quest for AWS Certifications continues.

In this episode, my goal is to quantitatively compare the three Associate certifications I'm focusing on: Solutions Architect, Developer and Data Engineer. So, I did some scraping to extract the exhaustive list of AWS services in scope for each certifications for the time being.

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  • 4 min read

AWS Certification Skill Tree

As a professional with more than 4 years of experience with AWS, I might attempt to get an AWS Certification sooner or later this year, so I'm evaluating all the possibilities out there.

AWS itself provides a useful guide to the recommended AWS Certification Paths, where all the top cloud job roles are listed together with a bried description of their responsibilities.

Even if such a resource is more than welcome, I find that the big picture is not as clear as it should be: I decided to help myself building a skill tree with the aid of the awesome diagrams.

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  • 3 min read

A comparison between AWS databases

Main databases types:

  • Relational: data are stored in tabular form (rows and columns), where each row represents a unique record. Tables can be put in relation with each other through joins and queried via SQL;
  • Key-value: non-relational database where each record stored as a unique key with its associated value, resembling a dictionary-like structure;
  • Document: semi-structured and hierarchical databases for catalogs and content management systems, often stored as JSON;
  • Graph: the way the data are stored is graph-based, with nodes and edges connecting each data source with the others;
  • Time-series: database optimized for records which indices are timestamps.
  • in Guides
  • 7 min read

A brief guide to GNU Make

make is a build tool which tracks the dependencies between the resources it manages, updating the successors whenever a change in one or more predecessors is detected.