Basics

Question 1

What is HBase’s Data Layout?

Answer 1

Column family/oriented

Question 2

What at what level is HBase’s transaction support?

Answer 2

Single row only

Question 3

What query language is supported by HBase?

Answer 3

get/put/scan

Question 4

What is the security used by HBase?

Answer 4

Kerberos/Column family

Question 5

Can you create indexes in HBase?

Answer 5

No

Question 6

Does Hbase support joins?

Answer 6

No

Question 7

HBase’s schema design is ‘what’ centric?

Answer 7

data centric

Question 8

What are the three primary steps for designing an HBase schema?

Answer 8

1 - Determine ways the data will be accessed
2 - Determine types of data to be stored
3 - Create data layouts and keys

Question 9

What are the features in HBase that are not found in RDBMs

Answer 9

1 - Very high scalability
2 - Storing massive datasets
3 - Handling missing or different columns

Question 10

List 3 features that are in RDBMs but not in HBase

Answer 10

1 - SQL
2 - Transactions
3 - Indexes

Question 11

What is HBase?

Answer 11

It is a NoSQL database that runs on top of HDFS