Blockchain Assessment test

Question 1.

It is estimated that blockchain technology will become mature for mainstream adoption by

a. 2020
b. 2025
c. 2018
d. None of the above

Question 2.

What is a P2P network?

a. Where nodes can communicate with each other directly
b. Where a central authority exists
c. Where no central server is required
d. Both a and c

Question 3.

Cryptoeconomics is the study of

a. Economic rules enforced by markets
b. Economic rules enforced by financial institutions
c. Economic rules enforced by financial markets
d. Economic rules enforced by cryptography

Question 4.

Tokenization on blockchain allows

a. Representation of stocks using a digital token
b. Representation of gold using a digital token
c. Representation of real estate using a digital token
d. All of the above

Question 5.

New coins are minted by a process known as

a. Recycling
b. Mining
c. Enciphering
d. None of the above

Question 6.

Mining is required for

a. Secure the network
b. Solve double spend problem
c. Create new accounts
d. Only 1 and 2

Question 7.

ripemd-160 is used for

a. Encryption
b. Hashing
c. Data confidentiality
d. Encrypting Bitcoin data

Question 8.

POW stands for

a. Proof of work
b. Proof of weight
c. Processing of work
d. None of the above

Question 9.

Mining adds new

a. Blocks
b. Transactions
c. Nodes
d. Both 1 and 2

Question 10.

Bitcoin mining has a carbon footprint that is

a. High
b. Low
c. Negligible
d. None of the above

Question 11.

Public blockchains require

a. Permission to join
b. No permission to join
c. Special privileges to join
d. Secret address to join

Question 12.

Hyperledger promotes

a. Business blockchain technologies
b. Ethereum blockchain
c. Bitcoin blockchain
d. All of the above

Question 13.

Hyperledger is a

a. Blockchain
b. Project
c. Government department
d. None of the above

Question 14.

Ethereum was conceptualized in

a. 2008
b. 2009
c. 2013
d. 2018

Question 15.

DAO stands for

a. Distributed application organization
b. Decentralized application organization
c. Distributed autonomous organization
d. Decentralized autonomous organization

Question 16.

DAPP is

a. Distributed application
b. Decentralized application
c. Centralized application
d. None of the above

Question 17.

AI is study of

a. Intelligent agents
b. Applications of bitcoin
c. Design of blockchain
d. Blockchains

Question 18.

clustering allows

a. Grouping of data
b. Encrypting of data
c. Confidentiality of data
d. Secure storage of data

Question 19.

Blockchain has application in

a. Finance
b. Medical
c. Law
d. All of the above

Question 20.

Blockchain-based voting can utilize what to allow privacy

a. Hashing
b. Zero knowledge proofs
c. Private blockchains
d. All of the above

Question 21.

Identity can be decentralized using

a. Blockchain
b. Database systems
c. Central storage systems
d. Smart cards

Question 22.

Namecoin solves the problem described by

a. Zooko's triangle
b. Bitcoin payment verification
c. Verification of transactions
d. All of the above

Question 23.

Blockchain of things allow for

a. Decentralization
b. Improved IoT security
c. Peer-to-peer communication between things
d. All of the above

Question 24.

Local private net can be used to

a. Test smart contracts
b. Build new smart contracts
c. All of the above
d. None of the above

Question 25.

Import statement in solidity allows

a. Importing of symbols
b. Importing of functions
c. Importing of dynamic libraries
d. Importing of ether

Question 26.

Scalability is an issue that arises from slow

a. Number of transactions per second
b. Slow block rate
c. Slow transaction speed
d. All of the above

Question 27.

The maximum call stack depth of EVM is

a. 1024 frame
b. 2048 frames
c. 512 frames
d. 256 frames

Question 28.

Utility cryptlets in Bletchley provide

a. Encryption
b. Payment service
c. Network service
d. Data services

Question 29.

Cosmos is a network of

a. Blockchains
b. Transactions
c. Zones
d. A and C

Question 30.

ZK-STARK stands for

a. Zero-Knowledge succinct transparent argument of knowledge
b. Zero Knowledge special transport argument of knowledge
c. Zero-knowledge sparse transport augmentation of knowledge
d. None of the above