Simplilearn Big Data Certification
Effective Big Data Training Programs 
Big data has transformed the way organizations operate, making it essential for professionals to acquire the skills necessary to harness its potential
...Certification Recognized certifications that validate the skills acquired during the training
...Simplilearn Big Data Certification Training - Covers Hadoop, Spark, and other big data technologies
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Nebenberuflich selbstständig 
Nebenberuflich selbständig ist, wer sich neben seinem Hauptjob im Anstellungsverhältnis eine selbständige Nebentigkeit begründet.