An overview of CCB-400, Cloudera Certified Specialist in Apache HBas exam.

Acquiring CCB-400, Cloudera Certified Specialist in Apache HBas certification proves that a candidate is qualified and has the advanced developer skills which are high in demand by companies and organizations which deploying Apache Hadoop products. It validated candidates ability to install and maintain HBase is able develop client code. It proves knowledge of the candidate of schema modeling, the Apache HBase infrastructure and architecture, using HBase Java APIs, and using Apache HBase.

CCB-400, Cloudera Certified Specialist in Apache HBas is created to assess a candidate’s fluency with the core and essential concepts and skills in the following departments:

• Core HBase Concepts

identifies the essential characteristics of Apache HBase and its role in a developed data such as Apache HBas ecosystem. Recognize differences between Apache HBase and a typical RDBMS. Explain the relation between Apache HBase and HDFS. Given a hypothetical situation, recognize application components that make the scenario an adequate application for Apache HBase.

• Data Model

Explain how an Apache HBase table is saves and stores on disk. Recognize the differences between a Column Family and a Column Qualifier. Given a scenario related to data loading, explain how Apache HBase will create the rows. Explain how Apache HBase cells store and save data. Explain what happens to data when it is deleted or removed.

• Architecture

Explain the core and essential components of an Apache HBase cluster. Explain how regions work and their advantages under several situations. Explain how a user finds a row in an HBase table. Describe the function and purpose of minor and key compactions. Explain hoe HBase fails over to another regioin server in a region crash situation. Describe Region Server splits.

• Schema Design

Describe the factors to be kept in mind when creating Column Families. Describe how row keys for optimal read performance can be achieved in an access pattern, and define row keys for location purposes.

• API

Explain the basic functions and purpose of the HBase Admin class. Candidates provided with a table and row key, ate required to use the get operation to return specific type of that row. Describe and explain the function of the check and Put techniques.

• Administration

Explain how to design, describe, and access and use data in tables from the shell. Identify how to bulk load data into Apache HBase. Identify the advantages of managed region splits.

To pass this certification the candidates need to go through proper training and use adequate and relevant reference material.

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