Test 6 - Smart Contract (2)

GAS_SPENT is the actual amount of gas which is spent at the completion time when the block is created.

Select one:

• Not Given

• True

• False

• This term does not exist in Ethereum

 Assume that an Ethereum block has a limit of 1200 units of gas, and a basic Ether transaction fee is 20. How many plain transactions that this block can fit?

Select one:

a. approximately 60 plain transactions without some smart contracts

b. approximately 61 plain transactions without some smart contracts

c. approximately 61 plain transactions with some smart contracts

d. approximately 60 plain transactions with some smart contracts

• approximately 60 plain transactions without some smart contracts

• approximately 61 plain transactions without some smart contracts

• approximately 61 plain transactions with some smart contracts

• approximately 60 plain transactions with some smart contracts

Choose the correct statement about the concept "gas" in the Ethereal blockchain?

Select one:

• Its role is similar to the nonce value in the Bitcoin blockchain

• It is the payment model for code execution

• It is the difficulty of the puzzle game for the consensus protocol

• It is the amount of cryptocurrency in each transaction

Choose the incorrect statement about Gas point in Ethereal?

Select one:

• If the gas point in the transaction is not sufficient, the request is rejected.

• The gas points needed for execution must be in the account balance for the execution to happen

• Gas points required for execution of a transaction is computed at the time of block creation

• Each type of operation requires a specific number of Gas point

EVM stands for ...

Select one:

• Enter Vending Machine

• Ethereum Vending Machine

• Ethereum Virtual Machine

• Enter Virtual Machine

 Beside the capability of value transfer in the Bitcoin Blockchain, what allows for the execution of code in the Ethereum Blockchain?

• Smart Contracts

• Solidity

• Byte-code

• Transaction fees

 Solidity has data, functions or methods with modifiers, along with getter and setter functions. True or False?

• True

• False

• Not Given

• Both T & F

Choose the correct statement about a smart contract?

Select one:

• Execution of a smart contract is initiated by another transaction

• It is a piece of code-deployed on miners in the blockchain

• All statements are correct

• Its execution may result in transactions which are recorded to the entire blockchain

Which of the following terminologies is used to call miners who participated in solving the puzzle but didn't win the privilege of block creation?

• Ommers

• Primariers

• Waiters

• Secondariers

An External Owned Account (EOA) is managed by ...

Select one:

• Public Key

• Public Key and Private Key

• Private Key

• The first transaction's hash by that account