Question 1

Which one of the following is true concerning Hyperledger Fabric?

Accepted Answer

A)  Cryptocurrency cannot be created or used 
B)  because it is permissioned, companies cannot launch products on it 
C)  Because it is permissioned, it is impossible to display data to the general public 
D)  None of the above 
A)  Cryptocurrency cannot be created or used 
B)  because it is permissioned, companies cannot launch products on it 
C)  Because it is permissioned, it is impossible to display data to the general public 
D)  None of the above

Question 2

In Hashcash, miners all compete to look for a so called. "____________"which, if provided as input (together with other parts of a block header) to a hash function, yields an output that's numerically small enough to claim the next block reward.

Accepted Answer

A)  Difficulty bits 
B)  Nonce 
C)  Merkle Root 
D)  Timestamp 
A)  Difficulty bits 
B)  Nonce 
C)  Merkle Root 
D)  Timestamp

Question 3

What are two cryptocurrencies that you would expect to see mining equipment with ASICS? (Select two.)

Accepted Answer

A)  Bitcoin 
B)  Ethereum 
C)  Neo 
D)  Litecoin 
E)  Monero 
A)  Bitcoin 
B)  Ethereum 
C)  Neo 
D)  Litecoin 
E)  Monero

Question 4

To prevent duplicate addresses/accounts from being generated on the same blockchain network, the input of the hash function that generates the address:

Accepted Answer

A)  Should never be plain text 
B)  Should always be numerical 
C)  Should first be encrypted 
D)  Should contain enough entropy or randomness 
A)  Should never be plain text 
B)  Should always be numerical 
C)  Should first be encrypted 
D)  Should contain enough entropy or randomness

Question 5

The first actual known blockchain software implementation and deployment occurred:

Accepted Answer

A)  In 1991 by Stuart Haber 
B)  In 2011 Markus Persson 
C)  In 2009 by Satoshi Nakamoto 
D)  In 1991 by Linus Torvalds 
A)  In 1991 by Stuart Haber 
B)  In 2011 Markus Persson 
C)  In 2009 by Satoshi Nakamoto 
D)  In 1991 by Linus Torvalds

Question 6

What type of encryption is shown below and is commonly used in blockchain cryptography?

Accepted Answer

A)  Diffie-Hellman 
B)  Asymmetric Encryption 
C)  Synchronous 
D)  Asynchronous 
E)  Symmetric Encryption 
A)  Diffie-Hellman 
B)  Asymmetric Encryption 
C)  Synchronous 
D)  Asynchronous 
E)  Symmetric Encryption

Question 7

Blockchain provenance is defined as _______________?

Accepted Answer

A)  Information sent to the blockchain and written to the blockchain. 
B)  Recording the history of data, from its last block to various stages of the data lifecycle 
C)  Recording the history of data, from its inception to various stages of the data lifecycle. 
D)  Once a transaction has been written and committed to the ledger it cannot be changed. 
A)  Information sent to the blockchain and written to the blockchain. 
B)  Recording the history of data, from its last block to various stages of the data lifecycle 
C)  Recording the history of data, from its inception to various stages of the data lifecycle. 
D)  Once a transaction has been written and committed to the ledger it cannot be changed.

Question 8

In common blockchain design, what is one common method to "chain" blocks of data together in order?

Accepted Answer

A)  Store the hash of the previous block within the current block 
B)  Having the genesis node store an ordered, mutable array of block hashes 
C)  Writing each block into a separate file on the hard disk of the node 
D)  Assigning an order number to each block so they can be sorted when requested 
A)  Store the hash of the previous block within the current block 
B)  Having the genesis node store an ordered, mutable array of block hashes 
C)  Writing each block into a separate file on the hard disk of the node 
D)  Assigning an order number to each block so they can be sorted when requested

Question 9

Blockchain systems assume all parties are trusted by all other parties in the exchange or ecosystem.

Accepted Answer

A) True 
 B)False

Question 10

Ethereum has a metric system of denominations used as units of ether. What is the smallest denomination of Ether?

Accepted Answer

A)  Kwei 
B)  Shannon 
C)  Wei 
D)  Finney 
A)  Kwei 
B)  Shannon 
C)  Wei 
D)  Finney

Question 11

What is provided by the Hyperledger Fabric to facilitate network communications?

Accepted Answer

A)  API 
B)  SDK 
C)  Ruby 
D)  Middleware 
A)  API 
B)  SDK 
C)  Ruby 
D)  Middleware

Question 12

In common blockchain design, which data structure is used to create a lightweight digital fingerprint of all the transactions within a block?

Accepted Answer

A)  Blockchains are unique in that they utilize no data structures 
B)  Lexicographic Search Tree 
C)  Bloom Filter 
D)  Merkle Tree 
A)  Blockchains are unique in that they utilize no data structures 
B)  Lexicographic Search Tree 
C)  Bloom Filter 
D)  Merkle Tree

Which one of the following is true concerning Hyperledger Fabric?

In Hashcash, miners all compete to look for a so called. "____________"which, if provided as input (together with other parts of a block header) to a hash function, yields an output that's numerically small enough to claim the next block reward.

What are two cryptocurrencies that you would expect to see mining equipment with ASICS? (Select two.)

To prevent duplicate addresses/accounts from being generated on the same blockchain network, the input of the hash function that generates the address:

The first actual known blockchain software implementation and deployment occurred:

What type of encryption is shown below and is commonly used in blockchain cryptography?

Blockchain provenance is defined as _______________?

In common blockchain design, what is one common method to "chain" blocks of data together in order?

Blockchain systems assume all parties are trusted by all other parties in the exchange or ecosystem.

Ethereum has a metric system of denominations used as units of ether. What is the smallest denomination of Ether?

What is provided by the Hyperledger Fabric to facilitate network communications?

In common blockchain design, which data structure is used to create a lightweight digital fingerprint of all the transactions within a block?

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

Which one of the following is true concerning Hyperledger Fabric?

In Hashcash, miners all compete to look for a so called. "____________"which, if provided as input (together with other parts of a block header) to a hash function, yields an output that's numerically small enough to claim the next block reward.

What are two cryptocurrencies that you would expect to see mining equipment with ASICS? (Select two.)

To prevent duplicate addresses/accounts from being generated on the same blockchain network, the input of the hash function that generates the address:

The first actual known blockchain software implementation and deployment occurred:

What type of encryption is shown below and is commonly used in blockchain cryptography?

Blockchain provenance is defined as _______________?

In common blockchain design, what is one common method to "chain" blocks of data together in order?

Blockchain systems assume all parties are trusted by all other parties in the exchange or ecosystem.

Ethereum has a metric system of denominations used as units of ether. What is the smallest denomination of Ether?

What is provided by the Hyperledger Fabric to facilitate network communications?

In common blockchain design, which data structure is used to create a lightweight digital fingerprint of all the transactions within a block?

Certified Blockchain Business Foundations

BTA Certified Blockchain Developer - Ethereum

BTA Certified Blockchain Developer - Hyperledger

Filters