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R3 Corda Questions and Answers on:

  • CryptoCurrency
  • Blockchain Platforms
  • Smart Contracts
  • Corda Network
  • Corda Library
  • Corda Database
  • Corda Transactions
  • JVM

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Question#1 Which of the following is a similarity between bitcoin and R3 Corda?

a) Both have cryptocurrency

b) Both are public blockchain platforms

c) Both have immutable states

d) Both support Turing complete programs

Answer:- Both are public blockchain platforms

Question#2 In R3 Corda, _______ is used as a consensus mechanism.

a) Database Administrator

b) Verification Service

c) Notary service

d) Consensus Service

Answer:- Consensus Service

Question#3 Smart Contracts in R3 Corda are written using programming languages like ______ and _____.

a) Go , C++

b) Java, Python

c) Solidity, Vyper

d) Java, Kotlin

Answer:- Java, Kotlin

Question#4 The Corda vision is a _______ in which all economic factors can transact with full privacy, autonomy, and security, and in an auditable manner.

a) Shared global logical ledger

b) Platform

c) Central database

d) Network

Answer:- Shared global logical ledger

Question#5 Every node in the R3 Corda network has the same view of the ledger.

a) True

b) False

Answer:- False

Question#6 R3 Corda is a private, permissioned blockchain.

a) True

b) False

Answer:- True

Question#7 __________ is a distributed ledger technology where data is stored in the form of blocks.

a) Blockchain

b) Database

c) Cryptocurrency

d) Contracts

Answer:- Blockchain

Question#8 _______ include data shared between two more or more nodes in a network.

a) Data

b) Messages

c) Shared fact

d) Contracts

Answer:- Contracts

Question#9 ________ are a set of rules that determine the execution of a transaction.

a) Program

b) Instruction

c) Tables

d) Contracts

Answer:- Contracts

Question#10 Communication between nodes occur in the context of flows, and is point to point.

a) True

b) False

Answer:- True

Question#11 ___________ is the core business logic on which CorDapps run.

a) Transaction

b) Contract

c) Legal prose

d) Flow framework

Answer:- Transaction

Question#12 A Flow Library contains a set of ______ used for common tasks like notarizing a transaction, gathering required signatures, etc.

a) Flows

b) Contracts

c) Transactions

d) Cordapps

Answer:- Flows

Question#13 Corda states are immutable objects.

a) True

b) False

Answer:- True

Question#14 Every node in an R3 Corda network has ______ associated with it.

a) Instances

b) States

c) Objects

d) Private databases

Answer:- Objects

Question#15 A Flow Library contains a set of ______ used for common tasks like notarizing a transaction, gathering required signatures, etc.

a) Flow

b) Contracts

c) Cordapps

d) Transactions

Answer:- Flow

Question#16 A _______ is a database in the node where all states are stored.

a) State database

b) Central database

c) Vault

d) Blockchain

Answer:- State database

Question#17 What are the two types of transactions?

a) Notary change and Generic

b) Common and Special

c) Dynamic and Static

d) State and Non-state

Answer:- State and Non-state

Question#18 ___________ is the core business logic on which CorDapps run.

a) Contract

b) Transaction

c) Fow Framework

d) Legal Prose

Answer:- Transaction

Question#19 What happens when shared facts associated with a node change?

a) States are modified.

b) Old states are marked historic, and new states are created.

c) Old states are deleted, and new states are created

d) Old and new states are merged.

Answer:- Old states are marked historic, and new states are created.

Question#20 Oracles are an external piece of information used by contracts.

a) True

b) False

Answer:- True

Question#21 A _______ is a database in the node where all states are stored.

a) Blockchain

b) State database

c) Central database

d) Vault

Answer:- Vault

Question#22 What service is used to discover nodes on a Corda network?

a) Finder service

b) Searching service

c) Discovery service

d) Network map service

Answer:- Network map service

Question#23 Validity Consensus and Uniqueness Consensus are the two types of consensus.

a) True

b) False

Answer:- True

Question#24 A Corda network needs certificates to maintain the unique identity of nodes.

a) True

b) False

Answer:- True

Question#25 A ______ is a JVM runtime environment that has a unique identity on the Corda network.

a) Contract sandbox

b) Node

c) Transaction

d) Network identifier

Answer:- Node

Question#26 Uniqueness consensus solves the ______ problem.

a) Zero spending

b) Verification

c) Agreement

d) Double spending

Answer:- Double spending

Question#27 ______ are applications that execute Smart contracts on the Corda platform.

a) Distributed app

b) dapps

c) Cordapps

d) Smart app

Answer:- Cordapps

Question#28 Which of the following transactions have zero inputs?

a) Opening

b) Genesis

c) Issuance

d) Intial

Answer:- Issuance

Question#29 Which of the following transactions have no output?

a) Issuance

b) Exits

c) Terminal

d) Genesis

Answer:- Exits

Question#30 Corda was initially developed for ______ institutions.

a) Political

b) Educational

c) Cultural

d) Financial

Answer:- Financial

Question#31 ______ are large chunks of data that can be reused across multiple transactions, and are also used for transaction validity.

a) Attachments

b) Oracles

c) Transactions

d) Files

Answer:- Attachments

Question#32 ________ are unique time-stamping services that order transactions, and are responsible for consensus in the Corda network.

a) Flow framework

b) Smart contracts

c) Notary pool

d) Transaction pool

Answer:- Notary pool

Question#33 When new states are created, old states are not deleted, but marked as ______.

a) Extinct

b) Historic

c) Deprecated

d) Obselete

Answer:- Historic

Question#34 A Genesis block is the first block of the blockchain.

a) True

b) False

Answer:- True

Question#35 Notary clusters are classified according to their ______ and consensus algorithms.

a) Structure

b) Visibility

c) Content

d) Size

Answer:- Structure

Question#36 Spreading transaction load over multiple notary clusters to allow higher transaction throughput is called?

a) Transaction distribution

b) Transaction split

c) Load balancing

d) Transaction processing

Answer:- Load balancing

Question#37 Transactions are atomic in nature.

a) True

b) False

Answer:- True

Question#38 R3 Corda and Bitcoin use which computational model.

a) Unspent Transaction Output (UTXO)

b) Internal Execution

c) Virtual Computing

d) Modular

Answer:- Unspent Transaction Output (UTXO)

Question#39 Each block in a blockchain contains the hash of the _________.

a) Next block

b) Previous block

c) Genesisblock

Answer:- Previous block

Question#40 ______ is a superset of blockchain technology, and both terminologies are used interchangeably.

a) Bitcoin

b) Ethereum

c) Distributed Ledger Technology

d) Multichain

Answer:- Distributed Ledger Technology

Question#41 The Corda network is like a complete graph where all the nodes are connected.

a) True

b) False

Answer:- True

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