Question 1

Blockchains only work to store financial transactions or other exchanges of monetary value.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following blockchain is NOT a permissioned blockchain?

Accepted Answer

A)  Quantum 
B)  Ethereum 
C)  R3 Corda 
D)  Ripple 
E)  Hyperledger 
A)  Quantum 
B)  Ethereum 
C)  R3 Corda 
D)  Ripple 
E)  Hyperledger

Question 3

Select the best statement for determining how consensus is reached.

Accepted Answer

A)  By the miner nodes which make sure that a transaction is valid. 
B)  By a cryptographic secure signature algorithm called ECDSA which makes sure that cheating is impossible. 
C)  By every single node in the blockchain network different transactions. 
D)  By every single node in the blockchain network executing the same transaction. 
A)  By the miner nodes which make sure that a transaction is valid. 
B)  By a cryptographic secure signature algorithm called ECDSA which makes sure that cheating is impossible. 
C)  By every single node in the blockchain network different transactions. 
D)  By every single node in the blockchain network executing the same transaction.

Question 4

______ is the official Ethereum IDE that allows developers to build and deploy contracts and decentralized applications on top of the Ethereum blockchain.

Accepted Answer

A)  Mist 
B)  Mix 
C)  Truffle 
D)  Metamask 
E)  Embark 
A)  Mist 
B)  Mix 
C)  Truffle 
D)  Metamask 
E)  Embark

Question 5

In Proof of Work group consensus, the "nonce" refers to?

Accepted Answer

A)  The random data to be combined with the block data which will produce a hash output matching the current difficulty level 
B)  Random nonsense data inserted at the end of a block to fill it completely 
C)  The average Bitcoin price over the last 90 days 
D)  None of the above 
A)  The random data to be combined with the block data which will produce a hash output matching the current difficulty level 
B)  Random nonsense data inserted at the end of a block to fill it completely 
C)  The average Bitcoin price over the last 90 days 
D)  None of the above

Question 6

Proof of Stake offers which advantage over Proof of Work?

Accepted Answer

A)  Greater transaction speed 
B)  It is compatible with new generation chipsets 
C)  It has a longer history and deeper knowledge base 
D)  None of the above 
A)  Greater transaction speed 
B)  It is compatible with new generation chipsets 
C)  It has a longer history and deeper knowledge base 
D)  None of the above

Question 7

You are currently consulting with an organization that ships widgets overseas. They would like to implement a Hyperledger Fabric and would like to know about how to use cryptocurrencies with Hyperledger Fabric. What is the best answer?

Accepted Answer

A)  If they need a native currency for their chain network, they can develop their own native currency with chaincode. 
B)  Hyperledger Fabric can be integrated with any crypto currency by using the proper APIs. 
C)  If they need a native currency for their chain network, they must use Ripple currency with chaincode. 
D)  If they need a native currency for their chain network, they must use Ethereum currency with chaincode. 
E)  Hyperledger Fabric does not support cryptocurrencies. 
A)  If they need a native currency for their chain network, they can develop their own native currency with chaincode. 
B)  Hyperledger Fabric can be integrated with any crypto currency by using the proper APIs. 
C)  If they need a native currency for their chain network, they must use Ripple currency with chaincode. 
D)  If they need a native currency for their chain network, they must use Ethereum currency with chaincode. 
E)  Hyperledger Fabric does not support cryptocurrencies.

Question 8

In public key cryptography, the private key is used to:

Accepted Answer

A)  Encrypt the public key 
B)  Generate unique hash values each time it is used 
C)  Verify the digital signature of a public key 
D)  Sign/approve any transaction/action that might be made by the holder of the key pair 
A)  Encrypt the public key 
B)  Generate unique hash values each time it is used 
C)  Verify the digital signature of a public key 
D)  Sign/approve any transaction/action that might be made by the holder of the key pair

Question 9

Secure Hash Algorithm (SHA-256) output is always 256 bits or 32 bytes in length regardless of the length of the input (even if input is millions of bytes). Select best answer.

Accepted Answer

A)  NSA is spying on us so what's it matters. 
B)  Depends on input 
C)  false 
D)  true 
A)  NSA is spying on us so what's it matters. 
B)  Depends on input 
C)  false 
D)  true

Question 10

In Ethereum the difficulty adjustment algorithm is coded in the ___________ file.

Accepted Answer

A)  calcDifficultyFrontier 
B)  block_validator.go 
C)  calcDifficultyHomestead 
D)  calcDifficultyvalidator.go 
A)  calcDifficultyFrontier 
B)  block_validator.go 
C)  calcDifficultyHomestead 
D)  calcDifficultyvalidator.go

Question 11

When a blockchain software is updated with new functionality that breaks or modifies the rules of the previous version of the software, what has just occurred?

Accepted Answer

A)  A hard fork 
B)  Revision Reversal Attack 
C)  A software fault 
D)  Autonomous update consensus 
A)  A hard fork 
B)  Revision Reversal Attack 
C)  A software fault 
D)  Autonomous update consensus

Question 12

You would like to run Ethereum DApps in a browser without a node. (No need to download blockchain.) What could you use locally in your Chrome browser?

Accepted Answer

A)  Jaxx 
B)  Solidity 
C)  Metamask 
D)  Mist 
A)  Jaxx 
B)  Solidity 
C)  Metamask 
D)  Mist

Question 13

In the Proof of Stake(POS) algorithm the miners are really known as ___________?

Accepted Answer

A)  Notary 
B)  Oracle 
C)  Forgers 
D)  Minters 
A)  Notary 
B)  Oracle 
C)  Forgers 
D)  Minters

Question 14

What is another name for blockchains that run adjacent to the blockchains and also offer more scope for processing contracts?

Accepted Answer

A)  Adchains 
B)  Funnelchains 
C)  Multichains 
D)  Sidechains 
A)  Adchains 
B)  Funnelchains 
C)  Multichains 
D)  Sidechains

Question 15

Which of the following hashing algos is considered to be the strongest?

Accepted Answer

A)  RSA 
B)  SHA-2 
C)  AES 
D)  MD-5 
E)  SHA 
A)  RSA 
B)  SHA-2 
C)  AES 
D)  MD-5 
E)  SHA

Question 16

Your company working for is now considering the blockchain. They would like to perform a POC with R3 Corda. The CIO was reading about different blockchain consensus algos and would like to understand what type of consensus algos is used with Corda. What is the best answer?

Accepted Answer

A)  R3 Corda is a pluggable blockchain and allows the enterprise flexibility 
B)  R3 Corda is a byzantine fault tolerant blokchain 
C)  R3 Corda is a proof of stake based blockchain 
D)  R3 Corda is a proof of work based blockchain 
A)  R3 Corda is a pluggable blockchain and allows the enterprise flexibility 
B)  R3 Corda is a byzantine fault tolerant blokchain 
C)  R3 Corda is a proof of stake based blockchain 
D)  R3 Corda is a proof of work based blockchain

Question 17

An on-chain Smart Contract might be considered autonomous in nature because:

Accepted Answer

A)  It is difficult to alter or update 
B)  Once it is deployed, it can never be revoked 
C)  Once it is deployed, it is self-managing 
D)  All of the above 
A)  It is difficult to alter or update 
B)  Once it is deployed, it can never be revoked 
C)  Once it is deployed, it is self-managing 
D)  All of the above

Question 18

A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________. What is required?

Accepted Answer

A)  Consensus 
B)  Crypthography 
C)  Bandwidth 
D)  Availability 
A)  Consensus 
B)  Crypthography 
C)  Bandwidth 
D)  Availability

Question 19

The reason that cryptocurrencies such as Bitcoin, Ethereum and Litecoin can be exchanged one with another is due to the fact that they all operate on the same blockchain network

Accepted Answer

A) True 
 B)False

Question 20

What benefit does HPE Cloud Cruiser provide?

Accepted Answer

A)  Need for proven, production-ready technology 
B)  Need a full history of all application data 
C)  Require top-notch performance 
D)  Need to avoid data duplication or redundancy 
A)  Need for proven, production-ready technology 
B)  Need a full history of all application data 
C)  Require top-notch performance 
D)  Need to avoid data duplication or redundancy

Blockchains only work to store financial transactions or other exchanges of monetary value.

Which of the following blockchain is NOT a permissioned blockchain?

Select the best statement for determining how consensus is reached.

______ is the official Ethereum IDE that allows developers to build and deploy contracts and decentralized applications on top of the Ethereum blockchain.

In Proof of Work group consensus, the "nonce" refers to?

Proof of Stake offers which advantage over Proof of Work?

You are currently consulting with an organization that ships widgets overseas. They would like to implement a Hyperledger Fabric and would like to know about how to use cryptocurrencies with Hyperledger Fabric. What is the best answer?

In public key cryptography, the private key is used to:

Secure Hash Algorithm (SHA-256) output is always 256 bits or 32 bytes in length regardless of the length of the input (even if input is millions of bytes). Select best answer.

In Ethereum the difficulty adjustment algorithm is coded in the ___________ file.

When a blockchain software is updated with new functionality that breaks or modifies the rules of the previous version of the software, what has just occurred?

You would like to run Ethereum DApps in a browser without a node. (No need to download blockchain.) What could you use locally in your Chrome browser?

In the Proof of Stake(POS) algorithm the miners are really known as ___________?

What is another name for blockchains that run adjacent to the blockchains and also offer more scope for processing contracts?

Which of the following hashing algos is considered to be the strongest?

Your company working for is now considering the blockchain. They would like to perform a POC with R3 Corda. The CIO was reading about different blockchain consensus algos and would like to understand what type of consensus algos is used with Corda. What is the best answer?

An on-chain Smart Contract might be considered autonomous in nature because:

A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________. What is required?

The reason that cryptocurrencies such as Bitcoin, Ethereum and Litecoin can be exchanged one with another is due to the fact that they all operate on the same blockchain network

What benefit does HPE Cloud Cruiser provide?

Certified Blockchain Business Foundations

BTA Certified Blockchain Developer - Ethereum

BTA Certified Blockchain Developer - Hyperledger

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Exam 4: BTA Certified Blockchain Solution Architect

Blockchains only work to store financial transactions or other exchanges of monetary value.

Which of the following blockchain is NOT a permissioned blockchain?

Select the best statement for determining how consensus is reached.

______ is the official Ethereum IDE that allows developers to build and deploy contracts and decentralized applications on top of the Ethereum blockchain.

In Proof of Work group consensus, the "nonce" refers to?

Proof of Stake offers which advantage over Proof of Work?

You are currently consulting with an organization that ships widgets overseas. They would like to implement a Hyperledger Fabric and would like to know about how to use cryptocurrencies with Hyperledger Fabric. What is the best answer?

In public key cryptography, the private key is used to:

Secure Hash Algorithm (SHA-256) output is always 256 bits or 32 bytes in length regardless of the length of the input (even if input is millions of bytes). Select best answer.

In Ethereum the difficulty adjustment algorithm is coded in the ___________ file.

When a blockchain software is updated with new functionality that breaks or modifies the rules of the previous version of the software, what has just occurred?

You would like to run Ethereum DApps in a browser without a node. (No need to download blockchain.) What could you use locally in your Chrome browser?

In the Proof of Stake(POS) algorithm the miners are really known as ___________?

What is another name for blockchains that run adjacent to the blockchains and also offer more scope for processing contracts?

Which of the following hashing algos is considered to be the strongest?

Your company working for is now considering the blockchain. They would like to perform a POC with R3 Corda. The CIO was reading about different blockchain consensus algos and would like to understand what type of consensus algos is used with Corda. What is the best answer?

An on-chain Smart Contract might be considered autonomous in nature because:

A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________. What is required?

The reason that cryptocurrencies such as Bitcoin, Ethereum and Litecoin can be exchanged one with another is due to the fact that they all operate on the same blockchain network

What benefit does HPE Cloud Cruiser provide?

Certified Blockchain Business Foundations

BTA Certified Blockchain Developer - Ethereum

BTA Certified Blockchain Developer - Hyperledger

Filters