5 HBase Vs. RDBMS Top Functional Differences

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Here're the differences between RDBMS and HBase. HBase in the Big data context has a lot of benefits over RDBMS. The listed differences below make it understandable why HBASE is popular in Hadoop (or Bigdata) platform.  5 HBase Vs. RDBMS Top Functional Differences Here're the differences unlock now. Random Accessing HBase handles a large amount of data that is store in a distributed manner in the column-oriented format while RDBMS is systematic storage of a database that cannot support a random manner for accessing the database. Database Rules RDBMS strictly follows Codd's 12 rules with fixed schemas and row-oriented manner of database and also follows ACID properties. HBase follows BASE properties and implements complex queries. Secondary indexes, complex inner and outer joins, count, sum, sort, group, and data of page and table can easily be accessible by RDBMS. Storage From small to medium storage application there is the use of RDBMS that provides the solution with MyS

Hadoop Security 12 Top Interview Questions

The below are the list of frequently asked questions on Hadoop security. Useful to learn for your data science project and for interviews.

Frequently asked interview questions on Hadoop security.

 Hadoop Security 12 Top Interview Questions

  1. How does Hadoop security work?
  2. How do you enforce access control to your data?
  3. How can you control who is authorized to access, modify, and stop Hadoop MapReduce jobs?
  4. How do you get your (insert application here) to integrate with Hadoop security controls?
  5. How do you enforce authentication for users on all types of Hadoop clients (for example, web consoles and processes)?
  6. How can you ensure that rogue services don't impersonate real services (for example, rogue Task Trackers and tasks, unauthorized processes presenting block IDs to Data Nodes to get access to data blocks, and so on)?
  7. Can you tie in your organization's Lightweight Directory Access Protocol (LDAP) directory and user groups to Hadoop's permissions structure?
  8. Can you encrypt data in transit in Hadoop?
  9. Can your data be encrypted at rest on HDFS?
  10. How can you apply consistent security controls to your Hadoop cluster?
  11. What are the best practices for security in Hadoop today?
  12. Are there proposed changes to Hadoop's security model? What are they?

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