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Certified Blockchain Business Foundations

Last Update 4 days ago
Total Questions : 84

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Question # 1

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

Options:

A.  

adding more network nodes

B.  

off-chain transactions

C.  

using faster microprocessors

D.  

fewer regulations

Discussion 0
Question # 2

What does a Merkle tree provide?

Options:

A.  

Efficient block lookups and protection against forgery

B.  

Anonymity and transparency

C.  

A Turing complete distributed network

D.  

A way to deploy smart contracts onto the Blockchain

E.  

All of the above

Discussion 0
Question # 3

What is a Blockchain?

Options:

A.  

A digital currency

B.  

An unchangeable record

C.  

A database of usable secret data

D.  

A Smart Contract

E.  

All of the above

Discussion 0
Question # 4

What does P2P stand for?

Options:

A.  

Person to Person

B.  

Public to Person

C.  

Peer to Peer

D.  

Product to Person

E.  

None of the above

Discussion 0
Question # 5

One of the great advantages of creating a new Blockchain solution is__________.

Options:

A.  

the ability to completely customize a unique business solution

B.  

combining Blockchain technologies to fit your business solution

C.  

merging your existing network technology into a new Blockchain solution

D.  

not being limited to a conventional business solution or restriction

E.  

All of the above

Discussion 0
Question # 6

What is a hash function?

Options:

A.  

A one-way function that converts input to a unique string output

B.  

A function that stores data behind a key

C.  

A two-way function used for condensing information

D.  

The block-ID of the block

E.  

All the above

Discussion 0
Question # 7

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

Options:

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

Discussion 0
Question # 8

Blockchain has more built-in security than a standard database.

Options:

A.  

True

B.  

False

Discussion 0
Question # 9

Transactions per second (TPS) for a Proof-of-Work Blockchain are approximately?

Options:

A.  

24K per second

B.  

175K per second

C.  

Only limited to the number of nodes on the network

D.  

7-15 per second

E.  

None of the above

Discussion 0
Question # 10

Who governs a Blockchain?

Options:

A.  

The users

B.  

The architects

C.  

The creator of the Blockchain

D.  

The developers

Discussion 0
Question # 11

Transparency allows_____________.

Options:

A.  

a trustless system where users can be certain of a result

B.  

easy iteration through the Blockchain

C.  

Records on the Blockchain to never be changed

D.  

users on the Blockchain to change data on the Blockchain

Discussion 0
Question # 12

How are blocks chained together?

Options:

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

Discussion 0
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