Q.1 The native currency of Ethereum network is _________________.
A. Mycoin
B. Ether
C. Bitcoin
D. Litecoin
Ans : Ether
Q.2 _________requires lots of Electricity/Energy.
A. Proof of Stake
B. Proof of work
C. Proof of Authority
D. Blockchain
Ans : Proof of Authority
Q.3 The main advantage of Ethereum over Bitcoin is __________.
A. Smart contracts
B. Transaction
C. Mining
D. Tokens
Ans : Smart contracts
Q.4 What are Ethereum tokens?
A. Native currency
B. Alternate currency
C. Digital asset
D. Mining reward
Ans : Digital asset
Q.5 Ethereum tokens are created by using ____________.
A. Application
B. Smart contracts
C. Dapps
D. Software
Ans : Smart contracts
Q.6 How many rewards (Wei/Ether) does the miner receive for adding a block to the chain?
A. 5 Ether
B. 5 Wei
C. 5*e15 Wei
D. 5*e9 Wei
Ans : 5 Ether
Q.7 How many lower denominations does the Ether have?
A. 3
B. 10
C. 6
D. 5
Ans : 6
Q.8 What is the smallest unit of Ether?
A. Gwei
B. Wei
C. Kwei
D. Mwei
Ans : Wei
Q.9 The time taken for mining one block in Ethereum is ___________.
A. 14 Seconds
B. 1 Seconds
C. 10 Seconds
D. 10 Minutes
Ans : 14 Seconds
Q.10 EVM stands for ___________.
A. Ethereum Virtual Machine
B. Ether Value Mechanism
C. Ether Value Measure
D. Ether Virtual Measure
Ans : Ethereum Virtual Machine
Q.11 Based on the storage of keys, wallets are classified into ______.
A. Custodial and Non-custodial
B. Hot and Cold
C. Private and Public
D. Desktop and Mobile
Ans : Hot and Cold
Q.12 Ethereum Client’s Command Line Interface can be used for ___________.
A. Create transactions
B. Run smart contracts
C. Mining
D. Join the Ethereum network
E. All the options
Ans : All the options
Q.13 All normal transactions are ________.
A. Private transactions
B. Multi-signature Transactions
C. Public transactions
D. Single-signature Transactions
Ans : Single-signature Transactions
Q.14 MetaMask wallet is a Browser Extension.
A. True
B. False
Ans : True
Q.15 Wallets and Ethereum Clients are used to interact with Ethereum network.
A. True
B. False
Ans : True
Q.16 How is transaction fee calculated?
A. Gas Limit-Gas used) * gas price
B. Gas used * gas price
C. Gas used * Gas Limit
D. Gas used + gas price
Ans : Gas used * gas price
Q.17 ______ is a personal testnetwork that is a part of truffle suite.
A. Kovan
B. Ropsten
C. Ganache
D. Goerli
Ans : Ganache
Q.18 Configuration file of Truffle is?
A. truffle-configuration.js
B. truffle-config.ts
C. truffle-config.js
D. truffle.js
Ans : truffle-config.js
Q.19 Solidity is a _____ language.
A. Turing incomplete
B. Turing Complete
C. Interpreted
D. Dynamic
Ans : Turing Complete
Q.20 Remix IDE cannot be used with a Browser.
A. True
B. False
Ans : False
Q.21 Remix IDE can be locally installed.
A. True
B. False
Ans : True
Q.22 Which is the command to install truffle?
A. npm install -g truffleSuite
B. npm install -g truffleCompiler
C. npm install truffleSuite
D. npm install -g truffle
Ans : npm install -g truffle
Q.23 Which of the following is a geth command?
A. geth.accounts
B. eth.account
C. geth.getAccounts
D. eth.getAccounts
Ans : geth.accounts
Q.24 If the actual Gas used in a Contract execution is less than the Gas specified by the user, the additional amount is returned.
A. True
B. False
Ans : True
Q.25 Solidity is a statically typed language.
A. True
B. False
Ans : True
Q.26 Truffle can be used for ____
A. Testing Contracts.
B. Debugging contracts
C. Compiling Contracts, Deploying Contracts
D. Creating front-end for DApps
E. All the options
Ans : All the options
Q.27 For EIP to become a new ERC, _________________.
A. Approved by Ethereum Committee
B. Deployed in the Blockchain
C. Is to follow coding standards
D. Is to be coded properly
Ans : Approved by Ethereum Committee
Q.28 ______signifies the amount of gas to be spent for a transaction.
A. Ether
B. Gas limit
C. Gas price
D. Ether limit
Ans : Gas limit
Q.29 Which of the following is a Proof of Work implemented test network?
A. Ganache
B. Ropsten
C. Rinkeby
D. Kovan
Ans : Ropsten
Q.30 Which of the follwing is an extension of Solidity file?
A. .json
B. .sol
C. .bat
D. .class
Ans : .sol
Q.31 _______contains the Development Environment, testing Framework, and the asset pipeline.
A. Metamask
B. Truffle
C. Ganache
D. Mist
Ans : Truffle
Q.32 ______ functions can only be called from inside the present contract, and cannot be called by the inherited contracts.
A. External
B. Internal
C. Private
D. Public
Ans : Private
Q.33 How the ether is brought into the Ethereum system?
A. Issued by participation
B. Exchanging with bitcoin
C. Mining
D. Buying
Ans : Mining
Q.34 MetaMask wallet is a ______.
A. Browser Extension
B. Physical wallet
C. Hot Wallet
D. Full Node Wallet
Ans : Browser Extension
Q.35 Which control structure is not supported by Solidity?
A. Switch
B. Do while
C. While
D. for
Ans : Switch
Q.36 What is the denomination used in Ethereum?
A. Ether
B. Kei
C. Wei
D. Bitcoin
Ans : Wei
Q.37 Ethereum network is classified into _________.
A. Public and Consortium blockchain
B. Public and Private blockchain
C. Consortium and Private blockchain
D. Public, Private and Consortium blockchain
Ans : Public, Private and Consortium blockchain
Q.38 _______ is a collection of libraries used to create easy and better front-end for Ethereum DApps.
A. Drizzle
B. Truffle
C. Ganache
D. Crizzle
Ans : Drizzle
Q.39 What is the token used for executing Smart Contracts?
A. Ether
B. Bitcoin
C. Gas
D. Dollars
Ans : Gas
Q.40 How can one send ethers?
A. Between accounts on the same network
B. Between accounts on any network
C. Between accounts on any private network
D. All the options
Ans : Between accounts on the same network
Q.41 Ethereum Virtual Machine supports turing complete languages.
A. True
B. False
Ans : True
Q.42 Contract Accounts have code associated with them.
A. True
B. False
Ans : True