ISE Modul 1 and 2

What is a Blockchain

• A blockchain is centralized digital ledger consisting of records called blocks

• A blockchain is decentralized, distributed digital ledger consisting of records called blocks

• A blockchain is digital database consisting of records called class

• It is a private ledger that no one can inspect

The “winning” miner is rewarded with a set number of bitcoin (plus transaction fees) called the

The __________ is a special part of the Bock Header that miners can populate with an arbitrary number.

What is "mining" in Bitcoin?

• 1.     The process of selling bitcoins.

• 2. The process of confirming transactions and adding them to the blockchain.

• 3. The process of removing invalid transactions.

High Degree of Anonymity is provided by

• Bitcoin

• Blockchain

• Both

Identify one of the types of Blockchain Network

• Constraint Blockchain

• Open Blockchain

• Private Blockchain

• Restricted Blockchain

Which of the following is not a Blockchain Component

• Ledger

• Wallet

• Digital Certificate

• Hash

A game theory problem, which describes the difficulty decentralized parties have in arriving at consensus without relying on a trusted central party.

• The Byzantine Generals Problem

• The Roman Problem

• Nash Equilibrium

• Coordination Game

Which type of blockchain is most suitable for applications requiring high levels of trust among a small group of participants?

• Public blockchain
  
  

• Private blockchain

• Consortium blockchain

• Hybrid blockchain

What is the main advantage of a private blockchain compared to a public blockchain?

• Higher security

• Lower transaction fees

• Greater transparency

• More privacy and control