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Computer Concepts 2018 Module 10 Section E

Terms in this set (26)

Big data
refers to huge collections of data that are difficult to process, analyze and manage using conventional database tools.
3rd Platform
based on cloud computing, mobile devices, social networking and big data
Low-density data
refers to large volumes of very detailed data in which many of the details are not important.
high-density data
packed with lots of useful information
A week worth of tweets would be considered ________________ by a marketing researcher.
low-density data
zettabyte
is equal to the storage capacity of 20 billion I-phones
NoSQL
group of technologies for managing databases that do not adhere to the relational model of SQL query language.
NoSQL is a _____________________
set of non-relational tools
Scale-up or scale vertically
adds resources to a single device.
The advantage of scale-up
the dataset remains as one unit.
Scale out or scale horizontally
adds more devices to a system, typically by adding nodes on a LAN or an internet cloud.
Which has more limitations? Scale up or Scale out?
Scaling up
Dynamic scaling applies to_____________
database storage and network connection
Dynamic scaling or auto scaling
ensures acceptable database through scaling out as necessary to handle peak loads. When a newly launched Web site goes viral and generates high volume of user traffic
schema
a relational database is organized according to a________________________ the blueprint for its structure
schema-less databases
NoSQL tools create, allowing data structures such as fields to be added, modified or distributed while database is operational.
key-value data model
the simplest structure for storing data in a NoSQL. Each data item has a key that is a unique identifier similar to a relational database key such as a customer ID #
column oriented data model
stores data in columns rather than in rows
Which term is the best synonym for schema in the context of databases?
structure
Hadoop
is a file system developed in 2005 that handles millions of files distributed across multiple server nodes. Has been deployed by many of the world's biggest Web sites.
MapReduce
Hadoop storage is complemented by a second NOSQL technology called_____________ that efficiently accesses the dataset. Sends the processing logic to the data and only returns the results.
Big data needs to handled quickly as it pours into a database, it is characterized as_______________
high velocity
When analysts have to sort through large volumes of data to gather relevant information, the dataset is said to contain _____________________
low density data
Popular non-relational tools for managing big data are referred to as_________________
NoSQL
The simplest structure of storing data uses______________
Key value pairs
_________________ is a file system that handles millions of files and large datasets across multiple server nodes
Hadoop
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