Both Hortonworks and Cloudera divide their trainings and certifications in 3 main groups: Data Scientists, Developers/Analysts, and Administration.
In whichever group you are, you'll have to know the Hadoop basics: HDFS (storage), Yarn, and MapReduce. The basics should be covered in every course or certification you are going to take. What certification you want to take depends on what job role you are in: an analyst / data scientist, developer or sysadmin.
You can succeed in the certification by reading books or attending training. Getting the certification doesn't necessarily mean you can actually work with the technology. It can be good though if you are new to the technology and you don't really know where to start.
I personally don't know much about the Cloudera certification, but I am a Trainer for Hortonworks in London. I think the certification can be good additional to work experience to prove you are up-to-date with the technology. Hadoop has a lot of moving parts, lots of different technologies, lots of small things that you can learn from sitting a course or reading books covering the subjects.
In whichever group you are, you'll have to know the Hadoop basics: HDFS (storage), Yarn, and MapReduce. The basics should be covered in every course or certification you are going to take. What certification you want to take depends on what job role you are in: an analyst / data scientist, developer or sysadmin.
You can succeed in the certification by reading books or attending training. Getting the certification doesn't necessarily mean you can actually work with the technology. It can be good though if you are new to the technology and you don't really know where to start.
I personally don't know much about the Cloudera certification, but I am a Trainer for Hortonworks in London. I think the certification can be good additional to work experience to prove you are up-to-date with the technology. Hadoop has a lot of moving parts, lots of different technologies, lots of small things that you can learn from sitting a course or reading books covering the subjects.
Hadoop Interview Questions - http://www.hub4tech.com/i
Cloudera (CCB-400) Certification - http://www.hub4tech.com/c
Cloudera (DS-200) Certification - http://www.hub4tech.com/d
Cloudera (CCD-410) Certification- http://www.hub4tech.com/c
Cloudera (CCA-505) Certification- http://www.hub4tech.com/c
Cloudera (CCA-500) Certification- http://www.hub4tech.com/c
Happy Hadooping ..
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