Table of Contents
Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system. We have Collected 100+ Blockchain Questions which might help you to crack your next interview. good luck!

A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain. Each block in the chain contains a number of transactions, and every time a new transaction occurs on the blockchain, a record of that transaction is added to every participant’s ledger. The decentralised database managed by multiple participants is known as Distributed Ledger Technology (DLT).
MCQ on Digital Metaphors
1.The Internet has reduced the ___.
Choose the correct option from below list
1) Cost of interactions
2) Cost of coordination
3) Cost of transactions
4) All the options
Correct Answer is :4)All the options
2.Which of the following products does not benefit from Network Effects?
Choose the correct option from below list
1) Cars
2) Mobile Messaging
3) Telephone
4) Social Networks
Correct Answer is :1)Cars
3.You want to bring a new product to the market for which there are many large incumbents. Which of the following strategies is/are worth considering?
Choose the correct option from below list
1) Bring out a product with fewer, more widely used features and introduce a pay-as-you-go pricing model.
2) Give your product for free. Monetize attention and adjacencies.
3) All the options
4) Target non-consuming users (or) low market segments and then move upmarket.
Correct Answer is :3)All the options
4.You are the CEO of Netflix. Who do you consider as your primary competition in recent times?
Choose the correct option from below list
1) Sleep
2) Amazon
3) HBO
4) Youtube
Correct Answer is :1)Sleep
5.You operate a hotel chain that targets the low market, low margin segment. Who will be your competitor in the digital world?
Choose the correct option from below list
1) Hyatt
2) Airbnb
3) Holiday Inn
4) Hilton
Correct Answer is :2)Airbnb
MCQ on Cloud 9

1.Elastic Scaling refers to _____.
Choose the correct option from below list
1) Automatic provisioning of bandwidth
2) All the options
3) Automatic provisioning of CPU
4) Automatic provisioning of Storage
Correct Answer is :2)All the options
2.When you use Gmail and Google Drive for your enterprise, what model are you using?
Choose the correct option from below list
1) PaaS
2) SaaS
3) None of the options
4) IaaS
Correct Answer is :2)SaaS
MCQ on Big Data

1.What is/are the key property/properties of big data?
Choose the correct option from below list
1) Velocity
2) Variety
3) All the options
4) Volume
Correct Answer is :3)All the options
2.HDFS is inspired by which of following Google projects?
Choose the correct option from below list
1) Mapreduce
2) GFS
3) Bigtable
4) None of the options
Correct Answer is :2)GFS
3.Name the programming model for developing Hadoop based applications.
Choose the correct option from below list
1) Mahout
2) Scala
3) None of the options
4) MapReduce
Correct Answer is :4)MapReduce
4.Which of the following is important for solving a big data problem?
Choose the correct option from below list
1) Distributed file system
2) Parallel distributed processing
3) All the options
4) Distributed database system
Correct Answer is :3)All the options
MCQ on Social Media & Digital Marketing
1.Why does social media marketing trump marketing through TV?
Choose the correct option from below list
1) TV is unidirectional
2) All the options
3) Social media is cheaper to market
4) User engagement is bidirectional
Correct Answer is :2)All the options
2.What is/are the use case(s) of social media marketing?
Choose the correct option from below list
1) Generating leads
2) Customer service
3) All the options
4) Brand awareness and recognition
Correct Answer is :3)All the options
MCQ on Artificial Intelligence

WHAT IS ARTIFICIAL INTELLIGENCE?
Artificial intelligence (AI) is a wide-ranging branch of computer science concerned with building smart machines capable of performing tasks that typically require human intelligence.
WHAT ARE THE FOUR TYPES OF ARTIFICIAL INTELLIGENCE?
Reactive Machines
Limited Memory
Theory of Mind
Self-Awareness
WHAT ARE EXAMPLES OF ARTIFICIAL INTELLIGENCE?
Siri, Alexa and other smart assistants
Self-driving cars
Robo-advisors
Conversational bots
Email spam filters
Netflix’s recommendations
1.What is the most common limitation for creating breakthroughs in AI?
Choose the correct option from below list
1) All the options
2) Lack of availability of training datasets, but major algorithms are already available
3) Datasets are evolving faster, but algorithms are evolving slower
4) None of the options
Correct Answer is :2)Lack of availability of training datasets, but major algorithms are already available
2.Which of the following is an example of AI?
Choose the correct option from below list
1) None of the options
2) Google building a driverless car.
3) IBM Watson winning the Jeopardy challenge.
4) Amazon showing similar product recommendations based on our purchasing behavior.
Correct Answer is :3)IBM Watson winning the Jeopardy challenge.
3.What is/are required to build an AI system?
Choose the correct option from below list
1) Dataset
2) All the options
3) Algorithms
4) Domain knowledge
Correct Answer is :2)All the options
4.What is/are the most common type(s) of Machine learning tasks?
Choose the correct option from below list
1) Reinforcement learning
2) Unsupervised learning
3) All the options
4) Supervised learning
Correct Answer is :3)All the options
5.You are a CIO and want to build an AI system. What will you do?
Choose the correct option from below list
1) Put Siri or Google Voice Assistant on top of your applications
2) Assemble training dataset, build algorithmic models and engineer using technology partners
3) Wait till AI reaches human-level accuracy
4) Purchase an AI platform and install it in the data center
Correct Answer is :2)Assemble training dataset, build algorithmic models and engineer using technology partners
MCQ on Unchain the Blockchain
1.What type of currency is Bitcoin?
Choose the correct option from below list
1) Cryptocurrency
2) Fiat currency
3) Virtual currency
4) None of the options
Correct Answer is :1)Cryptocurrency
2.How many Bitcoins will ever be created?
Choose the correct option from below list
1) 200
2) 2 million
3) 21 million
4) unlimited
Correct Answer is :3)21 million
3.What is the name of the general ledger that tracks all the Bitcoin transactions?
Choose the correct option from below list
1) Bitcoin chain
2) Satoshi chain
3) Chain wallet
4) Blockchain
Correct Answer is :4)Blockchain
4.Who created Bitcoin?
Choose the correct option from below list
1) Paul Andreesson
2) Jeffrey Ullman
3) Satoshi Nakamoto
4) Ichiro Toyoda
Correct Answer is :3)Satoshi Nakamoto
5.What is the process of creating a Bitcoin popularly known as?
Choose the correct option from below list
1) Patenting
2) Chaining
3) Coining
4) Mining
Correct Answer is :4)Mining
MCQ on IoT
The Internet of Things, or IoT, refers to the billions of physical devices around the world that are now connected to the internet, all collecting and sharing data. Thanks to the arrival of
super-cheap computer chips and the ubiquity of wireless networks, it’s possible to turn anything, from something as small as a pill to something as big as an aeroplane, into a part of the
1.Which of the following can be a sensory input to an IoT sensor for decision making?
Choose the correct option from below list
1) Software
2) All the options
3) Devices
4) People
Correct Answer is :2)All the options
2.Which of the following large scale IoT deployments has TCS done so far?
Choose the correct option from below list
1) Building Management systems
2) All the options
3) Smart Energy Management with digital command centers for monitoring real-time energy consumption
4) Smart water management at large campuses
Correct Answer is :2)All the options
3.Which of the features should be part of an IoT sensor?
Choose the correct option from below list
1) Remotely controllable
2) Can turn on and off on its own
3) Can anticipate levels and threshold
4) All the options
Correct Answer is :4)All the options
4.Why is standardization important for IoT?
Choose the correct option from below list
1) None of the options
2) To build low cost products
3) To ensure products and networks can communicate with each other over the same protocols
4) No standards are required as devices can connect automatically
Correct Answer is :3)To ensure products and networks can communicate with each other over the same protocols
5.What is the full form of CPS?
Choose the correct option from below list
1) Cipher Protocol System
2) Cluster of Physical Systems
3) None of the options
4) Cyber Physical Systems
Correct Answer is :4)Cyber Physical Systems
Final Assessment Questions on Digital Primer
What is the full form of CPS?
Choose the correct option from below list
None of the options
(1)Cluster of Physical Systems
(2)Cyber Physical Systems
(3)Cipher Protocol System
Correct Answer is:(2)Cyber Physical Systems
Which of the features should be part of an IoT sensor?
Choose the correct option from below list
(1)All the options
(2)Can turn on and off on its own
(3)Can anticipate levels and threshold
(4)Remotely controllable
Correct Answer is:(1)All the options
Why is standardization important for IoT?
Choose the correct option from below list
(1)To build low cost products
(2)None of the options
(3)To ensure products and networks can communicate with each other over the same protocols
(4)No standards are required as devices can connect automatically
Correct Answer is:(3)To ensure products and networks can communicate with each other over the same protocols
What is the process of creating a Bitcoin popularly known as?
Choose the correct option from below list
(1)Chaining
(2)Mining
(3)Coining
(4)Patenting
Correct Answer is:(2)Mining
What type of currency is Bitcoin?
Choose the correct option from below list
(1)None of the options
(2)Fiat currency
(3)Cryptocurrency
(4)Virtual currency
Correct Answer is:(3)Cryptocurrency
Who created Bitcoin?
Choose the correct option from below list
(1)Satoshi Nakamoto
(2)Jeffrey Ullman
(3)Paul Andreesson
(4)Ichiro Toyoda
Correct Answer is:(1)Satoshi Nakamoto
What is/are required to build an AI system?
Choose the correct option from below list
(1)All the options
(2)Dataset
(3)Domain knowledge
(4)Algorithms
Correct Answer is:(1)All the options
What is/are the most common type(s) of Machine learning tasks?
Choose the correct option from below list
(1)Reinforcement learning
(2)Unsupervised learning
(3)Supervised learning
(4)All the options
Correct Answer is:(4)All the options
What is/are the use case(s) of social media marketing?
Choose the correct option from below list
(1)Customer service
(2)Brand awareness and recognition
(3)Generating leads
(4)All the options
Correct Answer is:(4)All the options
Name the programming model for developing Hadoop based applications.
Choose the correct option from below list
(1)Mahout
(2)Scala
(3)MapReduce
(4)None of the options
Correct Answer is:(3)MapReduce
You are the CEO of Netflix. Who do you consider as your primary competition in recent times?
Choose the correct option from below list
(1)Youtube
(2)Amazon
(3)Sleep
(4)HBO
Correct Answer is:(3)Sleep
You want to bring a new product to the market for which there are many large incumbents.
Which of the following strategies is/are worth considering?
Choose the correct option from below list
(1)Bring out a product with fewer, more widely used features and introduce a pay-as-you-go pricing model.
(2)All the options
(3)Target non-consuming users (or) low market segments and then move upmarket.
(4)Give your product for free. Monetize attention and adjacencies.
Correct Answer is:(2)All the options
Which of the following can be a sensory input to an IoT sensor for decision making?
Choose the correct option from below list
(1)Devices
(2)Software
(3)People
(4)All the options
Correct Answer is:(4)All the options
What is the name of the general ledger that tracks all the Bitcoin transactions?
Choose the correct option from below list
(1)Blockchain
(2)Bitcoin chain
(3)Satoshi chain
(4)Chain wallet
Correct Answer is:(1)Blockchain
How many Bitcoins will ever be created?
Choose the correct option from below list
(1)21 million
(2)unlimited
(3)200
(4)2 million
Correct Answer is:(1)21 million
What is the most common limitation for creating breakthroughs in AI?
Choose the correct option from below list
(1)Datasets are evolving faster, but algorithms are evolving slower
(2)None of the options
(3)All the options
(4)Lack of availability of training datasets, but major algorithms are already available
Correct Answer is:(4)Lack of availability of training datasets, but major algorithms are already available
You are a CIO and want to build an AI system. What will you do?
Choose the correct option from below list
(1)Put Siri or Google Voice Assistant on top of your
applications
(2)Purchase an AI platform and install it in the data center
(3)Assemble training dataset, build algorithmic models and engineer using technology partners
(4)Wait till AI reaches human-level accuracy
Correct Answer is:(3)Assemble training dataset, build algorithmic models and engineer using technology partners
The following are examples of AI, except _.
Choose the correct option from below list
(1)Both Amazon showing similar product recommendations based on
(2)our purchasing behavior and Google building a driverless car.
(3)Google building a driverless car.
(4)IBM Watson winning the Jeopardy challenge.
(5)Amazon showing similar product recommendations based on our purchasing behavior.
Correct Answer is:(2)our purchasing behavior and Google building a driverless car.
Why does social media marketing trump marketing through TV?
Choose the correct option from below list
(1)All the options
(2)TV is unidirectional
(3)Social media is cheaper to market
(4)User engagement is bidirectional
Correct Answer is:(1)All the options
The Internet has reduced the ___.
Choose the correct option from below list
(1)Cost of coordination
(2)Cost of interactions
(3)All the options
(4)Cost of transactions
Correct Answer is:(3)All the options
What is/are the key property/properties of big data?
Choose the correct option from below list
(1)Volume
(2)Variety
(3)All the options
(4)Velocity
Correct Answer is:(3)All the options
HDFS is inspired by which of following Google projects?
Choose the correct option from below list
(1)Bigtable
(2)Mapreduce
(3)GFS
(4)None of the options
Correct Answer is:(3)GFS
Which of the following is important for solving a big data problem?
Choose the correct option from below list
(1)All the options
(2)Distributed database system
(3)Parallel distributed processing
(4)Distributed file system
Correct Answer is:(1)All the options
Which of the following products does not benefit from Network Effects?
Choose the correct option from below list
(1)Telephone
(2)Cars
(3)Social Networks
(4)Mobile Messaging
Correct Answer is:(2)Cars
You operate a hotel chain that targets the low market, low margin segment. Who will be your competitor in the digital
world?
Choose the correct option from below list
(1)Airbnb
(2)Hyatt
(3)Holiday Inn
(4)Hilton
Correct Answer is:(1)Airbnb