FUNDAMENTALS OF COMPUTER

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DATABASE FUNDAMENTALS

BASICS OF BIG DATA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Column is a collection of ____
A
key
B
Value
C
key value pairs.
D
None
Explanation: 

Detailed explanation-1: -A key-value database is a type of nonrelational database that uses a simple key-value method to store data. A key-value database stores data as a collection of key-value pairs in which a key serves as a unique identifier. Both keys and values can be anything, ranging from simple objects to complex compound objects.

Detailed explanation-2: -Examples of Popular Key-Value Databases Aerospike: Open-source database that is optimized for in-memory storage. Berkeley DB: Another open-source database that is a high-performance database storage library, although it’s relatively basic. Couchbase: Interestingly allows for text searches and SQL-style querying.

Detailed explanation-3: -Key Value Pair is a standard Experience Data Model (XDM) data type that captures the details of a generic key-value pair.

Detailed explanation-4: -HBase is a key/ value store. HBase is specifically Sparse, Distributed, Multi-dimensional, sorted Maps and consistent. The best way to become a Data Engineer is by getting the Azure Data Engineering Certification in Bangalore.

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