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
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