It is the situation where malicious miners/ attackers are present in the majority of a blockchain network
Correct!Wrong!
Which of the following is a type of Blockchain?
Correct!Wrong!
The attacker may send the same coin to different vendors in rapid succession, probably by using two machines
Correct!Wrong!
The scenario where one digital token is spent multiple times because the token generally consists of a digital file that can easily be cloned is known as
Correct!Wrong!
The attacker mines a private blockchain where he double-spends the coins.
Correct!Wrong!
Which of the following is an important elements in Blockchain ecosystem?
Correct!Wrong!
A Coinbase transaction is the _______ in a block. It is a unique type of bitcoin transaction that can be created by a miner.
Correct!Wrong!
Kind of attack which miner mines a block with his transaction and does not release it in the system
Correct!Wrong!
_______ transactions are the transactions occurring on the cryptocurrency network that moves value outside the network
