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WorksheetsBig Data Quiz 2
Total questions: 80
Worksheet time: 2hrs 8mins
A ________ serves as the master and there is only one NameNode per cluster.
Data Node
NameNode
Data block
Replication
HDFS works in a __________ fashion
master-worker
master-slave
worker/slave
worker/master
________ NameNode is used when the Primary NameNode goes down.
Rack
Data
Secondary
Name
The need for data replication can arise in various scenarios like ____________
Replication Factor is changed
DataNode goes down
Data Blocks get corrupted
All of the mentioned
HDFS is implemented in _____________ programming language.
Scala
C++
Java
C
5.Who created the hadoop?
dennis ritchie
james goasling
Doug Cutting
Carlo strozzi
11.HDFS can be deployed on____________
high cost hardware
low cost software
high cost software
low cost hardware
16. RDBMS supports _____ data formats.
unstructured
structured
semi structured
All th above
17. DataNode is responsible for ________ file operation
Read only
Write only
Read / Write
View only
18. ______ is the bookkeepper of HDFS.
NameNode
DataNode
SecondaryNode
None of the above
Big data is the massive amount of rapidly moving and freely ..................
Available data
Unavailable data
Structured Data
Unstructured Data
Which of the following are examples of how people give up some of their privacy in order to gain something in return (utility)?
Students make sure to use the “Incognito” tab in a web browser so that none of the browsing history is saved and all cache is cleared at the end of the browsing session.
People only use cash to pay for products since they do not have any credit cards.
Customers sign up for “rewards” programs for different grocery stores so that they can get discounts on different items throughout the store.
People enable GPS on their phone so that Apps can locate nearby stores, restaurants and hotels.
What should you look for when you want to control who sees your content on social media?
cookies
target
privacy settings
not possible
What do criminals do when they try to steal information or services from people on the internet?
target
internet use
hack
data analysis
What do companies collect that can identify you on the internet?
consumer
cookies
privacy policy
personal information
Where can you find information about what a website collects and shares when you sign up for their site??
identity theft
cookies
personal information
privacy policy
What is the tiny piece of data that allows google to remember our password?
identity theft
cookie
personal information
privacy policy
Who are people who purchase products or services either online or in a store?
identity theft
cookie
consumer
privacy settings
What is the true definition of big data
huge amount of space
large, diverse sets of information
unlimited speed data internet connection
small, undiverse sets of information
What is NOT a characteristic of big data?
Volume
Variety
Vision
Velocity
Variety is a characteristic of big data. Which type of formats does Variety comes from?
Structured
Unstructured
Semi-structured
All of the above
What does Velocity refers to?
processing speed of a data
speed of an internet
the volume to the city
Variety comes from structured or unstructured format. What is the difference between them?
Handwritten / Computer-typed
Numerical format / Natural Language
Clean / Dirty
Subjective / Objective
Which of the following would NOT use big data analysis?
Healthcare companies
Public agencies
Retail companies
High school students doing homework
We call it big data because...
the information is as large as a dinosaur.
there is a lot of information.
it is a very important date.
the dinosaurs knows lots of information.
Select all the places where big data can come from. There can be more than 1 answer.
Business Transaction Systems
Customer Databases
Clickstream Logs
Social Networks
Medical Records
The volume of data describes
how much data there is.
how loud or quiet the data is.
how puffy the data is.
how much 3 dimensional space the data takes up.
Velocity of data describes how quickly data is
generated, processed, and changed.
sent from one point to another.
generated, processed, and collected.
received by our brains.
Data veracity describes its
trustworthiness
size
importance
type
Big Data is significant because of all of the following except it___________________.
helps us in identifying trends in data
allows us to determine how much data a database can store
can be used to make connections in data
helps us solve questions we might have
Spreadsheets and databases are examples of software tools that allow us to process Big Data.
True
False
Credit card transactions, measurements, sound files, and images that can be classified as Big Data Sets.
True
False
What does SaaS mean?
Software as a Service
Software as a Solution
Software as a System
Software as a Secret
9. What is an advantage of the managing supply chain issues
optimizes usage and ensure the long-term health of farm equipment
tracking and optimizing delivery truck routes
recommending what pesticides to apply, when, and by how much
make smart decisions, such as what crops to plant for better profitability and when to harvest
Sources of Big Data
Social Networks
Excel files
Share Marketing
Normal Documents
Any data that can be stored, accessed and processed in the form of fixed format is called.............
Data format
Structured data
Semi Structured data
Unstructured data
................ is a heterogeneous data source containing a combination of simple text files, images, video etc.
Unstructured data
Semi-Structured data
Structured data
None
XML representation is an example of..............
Unstructured data
Structured data
Semi-Structured data
None
HDFS stands for...........
Hadoop developer file server
Hadoop developer file service
Hadoop distributed file service
Hadoop distributed file system
......... is a primary or major component of Hadoop Eco system and is responsible for storing large data sets of structured or unstructured data.
MapReduce
Zookeeper
Solar
HDFS
What are the two core components of HDFS?
Data Node
Resource manager
Application Manager
Name node
What is the advantages on using big data in education in real life?
A: Cost reduction
B: Higher risk
C: Effective learning
D: A and B only
E: A and C only
An orange grove company has sensors in the trees and on the machines that harvest the oranges. A camera mounted on the harvester takes a close-up picture of the orange every 5 minutes. Live data is sent to the distributor who gets this data from 100 companies. Does the distributor have big data?
Yes
No
Which of the following refers to different types of data?
Volume
Velocity
Variety
An independent t-shirt vendor advertises through Facebook and other social media sites. The vendor receives statistics on the customer demographics. Does the vendor have big data?
Yes
No
Smart parking meters, real-time street traffic video, and crime statistics feed data to an app that shows users recommended and available parking spaces as well as information regarding cost and a safety/security rating. Does the app use big data?
Yes
No
A large European city has sensors installed in ambulances and police cars to verify that the emergency response services are adequate in all areas of the city. This example would generate big data.
True
False
A corporation generates data from their web site, from sensors, and from internal documents. What characteristic of big data does this describe?
Variety
Redundancy
Viscocity
Volume
The one who responsible for build an effective data architecture
Data engineer
Data analyst
Data scientist
Look at this series: 12, 11, 13, 12, 14, 13, … What number should come next?
10
16
13
15
Safe : Secure :: Protect :
Lock
Guard
Sure
Conserve
One day raj left home and walked 5 km northwards, turned right and walked for 10km and turned left and walked 5 km more and finally turned left and walked 10km. How many kilometers will he have to walk to reach his home straight?
15 KM
10 KM
25 KM
5 KM
If ‘-’ means ‘+’, ‘+’ means ‘-’, ‘*’ means ‘÷’ and ‘÷’ means ‘*’ then which of the following will be the correct equation?
10 + 5 - 14 ÷ 10 * 15 = 158
30 + 5 + 14 - 10 * 15 = 122
30 - 5 + 14 ÷ 10 * 15 = 162
30 * 5 - 4 ÷ 10 + 15 = 31
The following equation becomes mathematically correct when you interchange either the sign or the Numbers as indicated in the question. Find the correct alternative.
Given equation;
(16 - 4) x 6 ÷ 2 + 8 = 30
4 and 2
16 and 6
+ and -
-and +
In a row of children, Divya is 7th from the left and Vijay is 9th from the right. When they interchange their places among themselves, Divya becomes 18th From the left. Then what will be Vijay present position from the right ?
6th
16th
26th
20th
Which number would replace the underline mark in the series 20, 40, 100, _, 820?
240
260
280
300
What are the missing numbers in this series, 15, 20, 24, 15, 28, 32 15, _, _, 15?
37,41
36,40
38,42
40,44
12, 24, 14, 28, 18, 36, __
24
25
26
28
Find the missing numbers in the series, 4, 20, 7, 14, 10, 8, 13, _, _.
(a)
Find the next two numbers in the series 5, 12, 15, 22, 25, 32, _, _.
(a)
ELFA, GLHA, ILJA,_____,MLNA
OLPA
KLMA
LLMA
KLLA
SCD, TEF, UGH, _____, WKL
CMN
UJI
VIJ
IJT
If A is the brother of B; B is the sister of C; and C is the father of D, how D is related to A ?
Brother
Sister
Nephew
Cannot be determined
Arrange the words given below in a meaningful sequence.
1. Key 2. Door 3. Lock 4. Room 5. Switch on
5,1,2,4,3
4,2,1,5,3
1,3,2,4,5
1,2,3,5,4
A,P,R,X,S and Z are sitting in a row. S and Z are in the centre. A and P are the ends. R is sitting to the left of A. Who is to the right of P ?
A
X
S
Z
Y is in the East of X which is in the North of Z. If P is in the South of Z, then in which direction of Y, is P ?
North
South
South- West
South- East
Introducing a boy, a girl said , " He is the son of the daughter of the father of my Uncle."How is the boy related to the girl ?
Brother
Nephew
Uncle
Son- in- law
0,2,8,14,?,34. Find the missing term.
20
23
24
25
.......... has the world’s largest Hadoop cluster.
Apple
Datamatics
None
What was Hadoop written in ?
C
C++
Java
JSP
The Hadoop list includes the HBase database, the Apache Mahout ________ system, and matrix operations
Machine learning
Pattern recognition
Statistical classification
AI
_____________is the slave/worker node and holds the user data in the form of Data Blocks.
NameNode
DataNode
Data block
Replication
________________is a resource management platform responsible for managing compute resources in the cluster and using them in order to schedule users and applications.
Hadoop Common
Hadoop Distributed File System (HDFS)
Hadoop YARN
Hadoop MapReduce
What are the main components of Hadoop Ecosystem?
MapReduce, HDFS, YARN
MLlib, GraphX
Gelly, Table, CEP
None of the mentioned
Consider the following statements:
Statement 1: Volatility refers to the data velocity relative to timescale of event being studied
Statement 2: Viscosity refers to the rate of data loss and stable lifetime of data
Only statement 1 is true
Only statement 2 is true
Both statements are true
Both statements are false
Hadoop is named after
Doug cuttings father
Doug cuttings company
Doug cuttings son toy elephant
Doug cutting
All of the following accurately describes Apache Hadoop except
Distributed processing
Java based
Open source
Best for little amounts of data also
Which of the following are characteristics of a DBMS
Self-Describing
Support Multiple Views
Single user systems
Data Sharing
Who is responsible for authorizing access to the database, coordinating and monitoring its use
Database programmer
System Analyst
DBA
Specialised user
Which command is used to remove all rows from a table ?
Delete
Remove
Truncate
Both [A] and [B]
