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H13-711_V3.5 · Question #369

The most basic unit of distributed storage in HBase is Region.

The correct answer is A. True. A (True) is correct because in HBase, a Region is indeed the fundamental unit of horizontal distribution and scalability - each Region contains a contiguous range of row keys and is served by exactly one RegionServer at any given time. When a table grows too large, HBase splits…

Big Data Storage Technologies (HDFS, HBase)

Question

The most basic unit of distributed storage in HBase is Region.

Options

  • ATrue
  • BFalse

How the community answered

(57 responses)
  • A
    70% (40)
  • B
    30% (17)

Explanation

A (True) is correct because in HBase, a Region is indeed the fundamental unit of horizontal distribution and scalability - each Region contains a contiguous range of row keys and is served by exactly one RegionServer at any given time. When a table grows too large, HBase splits it into multiple Regions, each of which can be distributed across different nodes in the cluster.

Option B is wrong because calling it False would imply some smaller unit is the basic distributed storage unit. While HBase has smaller internal constructs (like Stores, StoreFiles/HFiles, and cells), these are storage implementation details within a Region - they are not the unit of distribution across the cluster.

Memory tip: Think of Regions as "shards" - just as sharding distributes rows across nodes in a traditional database, Regions distribute row-key ranges across RegionServers. "Region = distributed unit" maps cleanly to this mental model.

Topics

#HBase#Region#Distributed Storage#Architecture

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