Dbmss Typically Include Report Generating Tools In Order To
Question: MongoDB and SimpleDB are both examples of:
SQL databases.
open source databases.
NoSQL databases.
cloud databases.
big data databases.
Answer: NoSQL databases.-
Question: Data cleansing not only corrects errors but also:
removes duplicate data.
enforces consistency among different sets of data.
establishes logical relationships between data.
structures data.
normalizes data.
Answer: enforces consistency among different sets of data.
Question: _______ tools are used to analyze large unstructured data sets, such as email, memos, and survey responses to discover patterns and relationships.
Clustering
Classification
OLAP
In-memory
Text mining
Answer: Text mining -
Question: Detecting and correcting data in a database or file that are incorrect, incomplete, improperly formatted, or redundant is called:
defragmentation.
data normalization.
data auditing.
data scrubbing.
data optimization.
Answer: data scrubbing. -
Question: A database ________ describes a database entity.
Record
file
Field
value
Byte
Answer: Field
Question: Which of the following is not a method for performing a data quality audit?
Surveying managers about their perceptions of data quality
Surveying end users about their perceptions of data quality
Surveying entire data files
Surveying samples from data files
Surveying data definition and query files
Answer: Surveying data definition and query files-
Question: In data mining, which of the following involves using a series of existing values to determine what other future values will be?
Forecasting
Clustering
Sequences
Classifications
Associations
Answer: Forecasting
Question: Which of the following is a specialized language that programmers use to add and change data in the database?
Data manipulation language
Data definition language
Structured query language
DBMS
Data access language
Answer: Data definition language -
Question: Which of the following enables you to create a script that allows a web server to communicate with a back-end database?
Java
CGI
SQL
HTML
NoSQL
Answer: CGI
Question:
Answer: Sentiment analysis software -