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