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Exam (elaborations)

CSE598 Blockchain Final Questions with Correct Answers

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CSE598 Blockchain Final Questions with Correct Answers

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  • August 19, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Blockchain
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CSE598 Blockchain Final Questions with Correct
Answers
Where are the transactions recorded in a blockchain?
* On a SQL database
* On a distributed immutable ledger
* On a distributed opaque immutable ledger
* On a centralized immutable ledger Correct Answer-On a distributed
immutable ledger


If the following are the six steps in the process of creating a new block,
what is the right time sequence in which the process happens?
1. Nodes verify transactions
2. Transactions were submitted to the network
3. Consensus algorithm
4. Select the header of the most recent block and insert it into the new
block as hash
5. Bundle the transactions into a block
6. New block is added to the local blockchain and propagated to the
network Correct Answer-2,1,5,4,3,6


2. Transactions were submitted to the network
1. Nodes verify transactions
5. Bundle the transactions into a block

,4. Select the header of the most recent block and insert it into the new
block as hash
3. Consensus algorithm
6. New block is added to the local blockchain and propagated to the
network


Which of the following is used to point to a block in the blockchain:
* Hash pointer
* User ID
* Transaction ID
* Timestamp Correct Answer-Hash pointer


TF: A block in the blockchain can have more than one parent block.
Correct Answer-False


In Ethereum it is stated that the ledge of a cryptocurrency such as
Bitcoin can be thought of as what?
* A smart contract
* A state machine replication
* A state transition system
* A decentralized autonomous organization Correct Answer-State
transition system

, A blockchain configuration that allows participating members to come
from within its organization defines Correct Answer-private or
permissioned


Which of these are NOT contained in a block of a blockchain?
* The hash value of the last block in the chain
* The has value of the block
* The has value of the previous block in the chain
* Data that is stored in the block Correct Answer-The has value of the
last block in the chain


Any electronic device that maintains a copy of the blockchain and keeps
the network functioning is called a
* Server
* Node
* Token
* Reward Correct Answer-Node


Blockchain is "immutable". What does it imply?
* The cannot be altered
* They can only store numerical data
* Any user cannot access them
* Their computation speed is not limited Correct Answer-They cannot
be altered

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