portable means you can take the stuff you learned and use it in another job. AWS is portable from job to job, as would be kybernetes or some other specialized but widely used software.
non-portable is a training on an inhouse application that no other company uses, like googles customised databases or what else they use there.
non-portable is a training on an inhouse application that no other company uses, like googles customised databases or what else they use there.