Question 1

Which of the following problems did Blockchain solve for cryptocurrencies?

Accepted Answer

A)  Anonymity 
B)  Double Spending 
C)  Destination of currencies 
D)  None of the above 
A)  Anonymity 
B)  Double Spending 
C)  Destination of currencies 
D)  None of the above

Question 2

The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.

Accepted Answer

A)  increase the use of cryptocurrency 
B)  speed up the internet 
C)  make Bitcoin less expensive 
D)  increase device connectivity 
A)  increase the use of cryptocurrency 
B)  speed up the internet 
C)  make Bitcoin less expensive 
D)  increase device connectivity

Question 3

How does a private Blockchain differ from a public one? Select all that apply.

Accepted Answer

A)  A private Blockchain does not use proof of work consensus 
B)  A private Blockchain is more efficient and has faster transaction times 
C)  A private Blockchain is not distributed 
D)  A private Blockchain often requires the identity of users to be known 
A)  A private Blockchain does not use proof of work consensus 
B)  A private Blockchain is more efficient and has faster transaction times 
C)  A private Blockchain is not distributed 
D)  A private Blockchain often requires the identity of users to be known

Question 4

Blockchain is always distributed.

Accepted Answer

A) True 
 B)False

Question 5

Blockchain applications can provide____________________.

Accepted Answer

A)  the elimination of intermediaries 
B)  building more trust between trusted parties 
C)  collaboration between trusted parties 
D)  better cooperation between banks 
A)  the elimination of intermediaries 
B)  building more trust between trusted parties 
C)  collaboration between trusted parties 
D)  better cooperation between banks

Question 6

Cryptocurrencies are a security regulated by the Securities and Exchange Commission.

Accepted Answer

A) True 
 B)False

Question 7

Blockchain 3.0 combined with the internet 3.0 will dramatically increase Blockchain use?

Accepted Answer

A) True 
 B)False

Question 8

The common safe place to store personal cryptocurrency is_____________.

Accepted Answer

A)  A digital wallet 
B)  in a secure ledger 
C)  a bank account 
D)  in a secure database 
A)  A digital wallet 
B)  in a secure ledger 
C)  a bank account 
D)  in a secure database

Question 9

Blockchain transaction code categorizes the data put into blocks.

Accepted Answer

A) True 
 B)False

Question 10

One solution to increasing Blockchain Transactions Per Second (TPS) is________.

Accepted Answer

A)  adding more network nodes 
B)  off-chain transactions 
C)  using faster microprocessors 
D)  fewer regulations 
A)  adding more network nodes 
B)  off-chain transactions 
C)  using faster microprocessors 
D)  fewer regulations

Question 11

What happens if a block is confirmed at the same time?

Accepted Answer

A)  The blocks splits into two chains. Blocks are then added to each chain until one chain becomes larger. The longest chain is then considered to be the Blockchain. 
B)  Nodes select which block to be added to the Blockchain 
C)  Both chains are deleted, and the unconfirmed transactions are added back to the pool 
D)  The Orderer Block confirms which block has the most confirmed transactions 
E)  None of the above 
A)  The blocks splits into two chains. Blocks are then added to each chain until one chain becomes larger. The longest chain is then considered to be the Blockchain. 
B)  Nodes select which block to be added to the Blockchain 
C)  Both chains are deleted, and the unconfirmed transactions are added back to the pool 
D)  The Orderer Block confirms which block has the most confirmed transactions 
E)  None of the above

Question 12

Why is a private Blockchain used instead of a public one?

Accepted Answer

A)  To limit user access and permissions 
B)  It is less expensive to develop 
C)  It requires less mining power than a public Blockchain 
D)  It requires fewer administrators to manage it 
A)  To limit user access and permissions 
B)  It is less expensive to develop 
C)  It requires less mining power than a public Blockchain 
D)  It requires fewer administrators to manage it

Question 13

The Ethereum Blockchain provides a/an _____________ virtual machine.

Accepted Answer

A)  Windows compatible 
B)  energy efficient 
C)  Linux compatible 
D)  turing-complete 
A)  Windows compatible 
B)  energy efficient 
C)  Linux compatible 
D)  turing-complete

Question 14

A Blockchain does NOT provide which attribute?

Accepted Answer

A)  Security through distribution 
B)  Anonymity through cryptography 
C)  Fault Tolerance through distribution 
D)  Immutability through hashing 
A)  Security through distribution 
B)  Anonymity through cryptography 
C)  Fault Tolerance through distribution 
D)  Immutability through hashing

Question 15

Blockchains are being implemented in the food supply chain because_____________.

Accepted Answer

A)  consumers demand to know where their food comes from 
B)  it allows farm to table accountability for safety 
C)  they have the potential to provide fast, specific supplier data 
D)  it prevents food waste if a food contamination problem occurs 
E)  All of the above 
A)  consumers demand to know where their food comes from 
B)  it allows farm to table accountability for safety 
C)  they have the potential to provide fast, specific supplier data 
D)  it prevents food waste if a food contamination problem occurs 
E)  All of the above

Question 16

How are blocks chained together?

Accepted Answer

A)  By sharing the same transaction details 
B)  Information of the previous block is embedded into the current block through hashing 
C)  Information of the current block is embedded into the genesis block 
D)  With a physical chain 
A)  By sharing the same transaction details 
B)  Information of the previous block is embedded into the current block through hashing 
C)  Information of the current block is embedded into the genesis block 
D)  With a physical chain

Question 17

The Blockchain ledger is commonly referred to as___________.

Accepted Answer

A)  a database ledger 
B)  a triple-entry ledger 
C)  a double-entry ledger 
D)  a genesis block 
A)  a database ledger 
B)  a triple-entry ledger 
C)  a double-entry ledger 
D)  a genesis block

Question 18

Blockchain allows for which of the following?

Accepted Answer

A)  Anonymous Cryptography 
B)  Trust in central authorities 
C)  A fast and efficient ledger 
D)  A peer to peer ledger without the need of a third party 
A)  Anonymous Cryptography 
B)  Trust in central authorities 
C)  A fast and efficient ledger 
D)  A peer to peer ledger without the need of a third party

Question 19

How would a developer make a change to Blockchain protocol?

Accepted Answer

A)  There are no restrictions, a developer could just change the code 
B)  A developer would need to initiate a hard fork 
C)  There is no way to change Blockchain protocol 
D)  change the orderer configuration 
E)  None of the above 
A)  There are no restrictions, a developer could just change the code 
B)  A developer would need to initiate a hard fork 
C)  There is no way to change Blockchain protocol 
D)  change the orderer configuration 
E)  None of the above

Question 20

How much data can be represented by the data hash of a block?

Accepted Answer

A)  a maximum of 20 MB 
B)  virtually any amount 
C)  not to exceed 100k bytes 
D)  the hash is only a memory location 
A)  a maximum of 20 MB 
B)  virtually any amount 
C)  not to exceed 100k bytes 
D)  the hash is only a memory location

Which of the following problems did Blockchain solve for cryptocurrencies?

The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.

How does a private Blockchain differ from a public one? Select all that apply.

Blockchain is always distributed.

Blockchain applications can provide____________________.

Cryptocurrencies are a security regulated by the Securities and Exchange Commission.

Blockchain 3.0 combined with the internet 3.0 will dramatically increase Blockchain use?

The common safe place to store personal cryptocurrency is_____________.

Blockchain transaction code categorizes the data put into blocks.

One solution to increasing Blockchain Transactions Per Second (TPS) is________.

What happens if a block is confirmed at the same time?

Why is a private Blockchain used instead of a public one?

The Ethereum Blockchain provides a/an _____________ virtual machine.

A Blockchain does NOT provide which attribute?

Blockchains are being implemented in the food supply chain because_____________.

How are blocks chained together?

The Blockchain ledger is commonly referred to as___________.

Blockchain allows for which of the following?

How would a developer make a change to Blockchain protocol?

How much data can be represented by the data hash of a block?

BTA Certified Blockchain Developer - Ethereum

BTA Certified Blockchain Developer - Hyperledger

BTA Certified Blockchain Solution Architect

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Exam 1: Certified Blockchain Business Foundations

Which of the following problems did Blockchain solve for cryptocurrencies?

The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.

How does a private Blockchain differ from a public one? Select all that apply.

Blockchain is always distributed.

Blockchain applications can provide____________________.

Cryptocurrencies are a security regulated by the Securities and Exchange Commission.

Blockchain 3.0 combined with the internet 3.0 will dramatically increase Blockchain use?

The common safe place to store personal cryptocurrency is_____________.

Blockchain transaction code categorizes the data put into blocks.

One solution to increasing Blockchain Transactions Per Second (TPS) is________.

What happens if a block is confirmed at the same time?

Why is a private Blockchain used instead of a public one?

The Ethereum Blockchain provides a/an _____________ virtual machine.

A Blockchain does NOT provide which attribute?

Blockchains are being implemented in the food supply chain because_____________.

How are blocks chained together?

The Blockchain ledger is commonly referred to as___________.

Blockchain allows for which of the following?

How would a developer make a change to Blockchain protocol?

How much data can be represented by the data hash of a block?

BTA Certified Blockchain Developer - Ethereum

BTA Certified Blockchain Developer - Hyperledger

BTA Certified Blockchain Solution Architect

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