Python Blockchain Developer Set 3

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Free Online Best Office Python Blockchain Developer Questions for improve your basic knowledge of Python Blockchain Developer. This Python Blockchain Developer set 3 test that contains 25 Multiple Choice Questions with 4 options. You have to select the right answer to a question.

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Question 1

Define Version 1?

A	is the genesis block
B	is a soft fork of bitcoin core 0.7.0
C	blocks were a soft fork of bitcoin core 0.10.0
D	blocks are BIP65 in bitcoin core 0.11.2

Question 2

Define Version 3?

A	blocks were a soft fork of bitcoin core 0.10.0
B	is the genesis block
C	is a soft fork of bitcoin core 0.7.0
D	blocks are BIP65 in bitcoin core 0.11.2

Question 3

What is Dbcache?

A	Dbcache reduce the size of the UtXo cache from 300 MiB to 100 MiB
B	Dbcache limits the disk usage. set this to 3000
C	Dbcache limit the maximum nodes number to ten connections
D	All of these

Question 4

the configuration file holds the following params

A	prune
B	dbcach
C	Maxconnections
D	All of these

Question 5

Which of the following is popularly used for storing bitcoins?

A	Box
B	Stack
C	Wallet
D	Pocket

Question 6

What is Bitcoin?

A	Bitcoin is a technology that underpins Hyperledger Fabric
B	Bitcoin is a another name for BlockChain
C	Bitcoin is a an unregulated censorship resistant shadow currency
D	Bitcoin is a private network

Question 7

In blockchain, blocks are linked ----------?

A	Backward to the previous block
B	Forward to next block
C	Not linked with each other
D	linked with each other

Question 8

Blockchain can be stored as which of the following?

A	A flat file
B	A Database
C	Both of the above
D	None of these

Question 9

What are Miners?

A	Miners are those Users who use their computational power to mine for blocks.
B	Miners are the chains of blocks where each block contains data of value without any central supervision. It is cryptographically secure and immutable.
C	Miners are the mechanism by which a decentralized network comes to a consensus on certain matters
D	Miners are said to be decentralized because there is no central authority supervising anything.

Question 10

Good Example of Private Blockchain

A	RecordesKeeper Blockchain
B	Corda
C	Hyperledger
D	All of these

Question 11

What is Prune?

A	Prune limits the disk usage. set this to 3000
B	Prune limit the maximum nodes number to ten connections
C	Prune reduce the size of the UtXo cache from 300 MiB to 100 MiB
D	All of these

Question 12

.---------was first cryptocurrency to come in to market?

A	Bitcoin
B	Nonce
C	Merkle root
D	Hash

Question 13

What is Token?

A	Token can be created anywhere in the world and delivered via Ethereum, EOS, or another capable blockchain platform.
B	Token is an unregulated censorship resistant shadow currency
C	Token is a private network
D	Token is an another name for BlockChain

Question 14

What is Private Blockchain?

A	Private Blockchain Provides the premission as who can read and who can transfer the data
B	Private Blockchain is a binary tree that holds all the hashed pairs of the tree
C	Private Blockchain is Backward to the previous block
D	Private Blockchain is Not linked with each other

Question 15

What is Maxconnections?

A	Maxconnections limit the maximum nodes number to ten connections
B	Maxconnections limits the disk usage. set this to 3000
C	Maxconnections reduce the size of the UtXo cache from 300 MiB to 100 MiB
D	All of these

Question 16

Bitcoin is based on ---------- blockchain?

A	Private
B	Public
C	Public Permissioned
D	Permissioned

Question 17

For NEO, a node that has management rights is called a----

A	book-keepingnode
B	block producer.
C	miner
D	Hyperledger

Question 18

For EOS, a node running the underlying network layer and able to process all transactions is called a---

A	block producer.
B	miner
C	book-keepingnode
D	Hyperledger

Question 19

.--------introduced Bitcoin.

A	Santoshi Nakamoto
B	Samsung
C	China
D	John Mcafee

Question 20

For bitcoin, a node that can create blocks is called a---

A	miner
B	book-keepingnode
C	block producer.
D	Hyperledger

Question 21

Name some details that are sent to the block of bitcoin?

A	Merkle root
B	Hash
C	Nonce
D	All of these

Question 22

Define Version 2?

A	is a soft fork of bitcoin core 0.7.0
B	is the genesis block
C	blocks were a soft fork of bitcoin core 0.10.0
D	blocks are BIP65 in bitcoin core 0.11.2

Question 23

How many properties of Blockchain?

A	1
B	2
C	3
D	4

Question 24

What is Hash rate?

A	Hash rate is a binary tree that holds all the hashed pairs of the tree
B	Hash rate is the number of calculations in a second that your computer can perform trying to solve the mathematical puzzle
C	Hash rate is a document for introducing features or information to bitcoin.
D	Hash rate is an arbitrary number that miners change to modify the header hash in order to produce a hash that is less than or equal to the target threshold

Question 25

What is Bitcoin improvement proposal (BIP)?

A	BIP is a document for introducing features or information to bitcoin.
B	BIP is an SHA256 hash of the previous block’s header. This ensures integrity because changing one previous block will require changing each previous block.
C	BIP is a binary tree that holds all the hashed pairs of the tree
D	BIP is an arbitrary number that miners change to modify the header hash in order to produce a hash that is less than or equal to the target threshold

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Python Blockchain Developer Set 3

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