hadoop intermediate certificate is not necessary to test, the current market is not recognized.

Speaking of big data storage, I believe the first thing that comes to mind is Hadoop, Hadoop is written by the java language, in the distributed server cluster to store massive amounts of data and run a distributed analysis of the application of open-source frameworks, the core components are HDFS and MapReduce. employment surface is very broad, and this line is very popular.

The time to learn Hadoop is different from person to person, which includes the learning basis of Java, because hadoop is written in java, so know java can help understand hadoop principle.

If you are serious about self-study and know some Java, you can master it in half a year, but if you don't know Java, you need to learn Java first, so it takes a year.

The concept of what Hadoop really is and what it can do. It is easy for a beginner to frame it as a burden in the beginning, but in reality it should be a tool. After understanding the power of Hadoop as a technology, one becomes more interested in Hadoop and in turn more interested in Hadoop technology.

Certificate is a document issued by an organization, school, group, etc. to prove qualification or authority, which means a credential that indicates (or helps to assert) something.

Certificate process, materials and models and honor certificate has a slight difference: because the specific industry is different, the general requirements are more stringent, so the certificate process, materials and models to customize the main content to highlight the characteristics of the industry, anti-counterfeiting features.

With the development of the times, there are also highlighting the personality of the shaped certificate appears: such as plaque type; frame type. The main purpose is to highlight the characteristics of the industry, show personality. The most notable such as cartoon style certificate issued to young children.

Children in the course of training courses to participate in the process of some of the corresponding competitions to obtain the appropriate certificate, for example: English sword 1, sword 2, sword 3, etc., Ao Mu go beauty, Yingchun Cup, Huabaosai, etc., if you can obtain the relevant certificate.

Undoubtedly will become the child preparation for the beginning of the powerful magic weapon. The first thing you need to do is to get your hands on some of the most popular products in the world, and you'll be able to do that with the help of your own personal computer. The certificate can also make the child in the future of the primary interview to increase a self-confidence, the heart more bottom.