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May 29 2020 |
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Introduction

Introduction

This is the EXIN Blockchain Essentials (BLOCKCHAINE.EN) sample exam. The Rules and Regulations for EXIN’s examinations apply to this exam.

This exam consists of 20 multiple-choice questions. Each multiple-choice question has a number of possible answers, of which only one is correct.

The maximum number of points that can be obtained for this exam is 20. Each correct answer is worth 1 point. You need 13 points or more to pass the exam.

The time allowed for this exam is 30 minutes.

Good luck!





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Question

1  of 20
What is a blockchain?

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2  of 20
What is the function of a lightweight node within a blockchain network?

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3  of 20
A bearer instrument used to transfer value between two parties over a blockchain network.

What is this instrument?

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4  of 20
What is a key characteristic of a public blockchain?

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5  of 20
How do blockchains function like ledgers?

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6  of 20
What is the task of miners in a blockchain network?

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7  of 20
Blockchain networks are vulnerable to 51% attacks.

Which network would incentivize hackers most to break the network?

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8  of 20
One of the greatest threats to the blockchain community is the narcissism of small differences.

What is the result of this narcissism of small differences?

Question

9  of 20
How do fraudsters use a Ponzi scheme?

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10  of 20
In what way do blockchains use a public witness?

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11  of 20
Blockchain enables self-sovereign identity.

How does blockchain do this?

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12  of 20
Public blockchains give an incentive to encourage users to mine blocks and secure the network.

What incentive is this?

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13  of 20
What is the best use case for smart contracts?

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14  of 20
What is the role of a DAO (decentralized autonomous organization)?

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15  of 20
How can blockchain technology best help securing identity data?

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16  of 20
What is the value of using blockchain networks with Internet of Things (IoT)?

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17  of 20
How does blockchain improve supply chains?

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18  of 20
What is digital fiat currency?

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19  of 20
How does blockchain technology benefit the insurance industry?

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20  of 20
How does blockchain technology help to protect intellectual property rights (IP)?