INF503 Week 7 Quize's

Started on	Sunday, February 27, 2022, 11:03 PM
State	Finished
Completed on	Sunday, February 27, 2022, 11:07 PM
Time taken	3 mins 39 secs
Grade	20.00 out of 20.00 (100%)

Question 1

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Question text

_____ are in charge of presenting data to the end user in a variety of ways.

Select one:

Data stores

ETL tools

Data visualization tools

Correct

Data analysis tools

Feedback

The correct answer is: Data visualization tools

Question 2

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______ focuses on filtering data as it enters the system to determine which data to keep and which to discard.

Select one:

Scaling out

Stream processing

Correct

Feedback loop processing

Scaling up

Feedback

The correct answer is: Stream processing

Question 3

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Question text

______ is a tool for converting data back and forth between a relational database and the HDFS.

Select one:

Pig

Impala

Flume

Sqoop

Correct

Feedback

The correct answer is: Sqoop

Question 4

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______ is keeping the same number of systems, but migrating each system to a larger system.

Select one:

Scaling up

Correct

Clustering

Scaling out

Streaming

Feedback

The correct answer is: Scaling up

Question 5

Correct

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Question text

______ was the first SQL on Hadoop application.

Select one:

Impala

Correct

Pig

Flume

Sqoop

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The correct answer is: Impala

Question 6

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______ minimizes the number of disk reads necessary to retrieve a row of data.

Select one:

Column-oriented database

Column-family database

Row-centric storage

Correct

Column-centric storage

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The correct answer is: Row-centric storage

Question 7

Correct

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______ processing occurs when a program runs from beginning to end without any user interaction.

Select one:

Batch

Correct

Hadoop

Hive

Block

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The correct answer is: Batch

Question 8

Correct

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______ is NOT one of the "3 Vs" of Big Data.

Select one:

Volume

Validation

Correct

Velocity

Variety

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The correct answer is: Validation

Question 9

Correct

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A ______ is a programmed function within an object used to manipulate the data in that same object.

Select one:

node

block

batch

method

Correct

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The correct answer is: method

Question 10

Correct

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Question text

A query in a graph database is called a ______.

Select one:

script

hierarchy

traversal

Correct

schema

Feedback

The correct answer is: traversal

Question 11

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A(n) ______ is a process or set of operations in a calculation.

Select one:

feedback loop

stream

structure

algorithm

Correct

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The correct answer is: algorithm

Question 12

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A(n) ______ is a tag that is used to associate a collection of nodes as being of the same type or belonging to the same group.

Select one:

label

Correct

key

edge

bucket

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The correct answer is: label

Question 13

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Question text

_____ can serve as a test vehicle for companies exploring the potential benefits of data warehouses.

Select one:

OLAPs

Data marts

Correct

Data cubes

Data networks

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The correct answer is: Data marts

Question 14

Correct

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_____ extends SQL so that it can differentiate between access requirements for data warehouse data and operational data.

Select one:

ROLAP

Correct

DBMS

OLAP

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The correct answer is: ROLAP

Question 15

Correct

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Question text

_____ splits a table into subsets of rows or columns and places the subsets close to the client computer to improve data access time.

Select one:

Replication

Meta modeling

Partitioning

Correct

Normalization

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The correct answer is: Partitioning

Question 16

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_____ tools focus on the strategic and tactical use of information.

Select one:

Relational database management

Business intelligence

Correct

Business

Networking

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The correct answer is: Business intelligence

Question 17

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_____ provide a unified, single point of entry for information distribution.

Select one:

Decision support systems

Data warehouses

Dashboards

Portals

Correct

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The correct answer is: Portals

Question 18

Correct

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Question text

A _____ index is based on 0 and 1 bits to represent a given condition.

Select one:

multidimensional

normal

bitmapped

Correct

logical

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The correct answer is: bitmapped

Question 19

Correct

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A _____ is a dynamic table that not only contains the SQL query command to generate the rows, but also stores the actual rows.

Select one:

star schema

SQL view

data cube

materialized view

Correct

Feedback

The correct answer is: materialized view

Question 20

Correct

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Question text

A _____ schema is a type of star schema in which dimension tables can have their own dimension tables.

Select one:

snowflake

Correct

matrix

starflake

dimension

Feedback

The correct answer is: snowflake

Finish review

Comments

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