Q.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
Ans : Both are public blockchain platforms
Q.2 In R3 Corda, _______ is used as a consensus mechanism.
A. Database
Administrator
B. Verification
Service
C. Notary
service
D. Consensus
Service
Ans : Consensus Service
Q.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
Ans : Java, Kotlin
Q.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
Ans : Shared global logical ledger
Q.5 Every node in the R3 Corda network has the same view of
the ledger.
A. True
B. False
Ans : False
Q.6 R3 Corda is a private, permissioned blockchain.
A. True
B. False
Ans : True
Q.7 __________ is a distributed ledger technology where data
is stored in the form of blocks.
A. Blockchain
B. Database
C.
Cryptocurrency
D. Contracts
Ans : Blockchain
Q.8 _______ include data shared between two more or more
nodes in a network.
A. Data
B. Messages
C. Shared fact
D. Contracts
Ans : Contracts
Q.9 ________ are a set of rules that determine the execution
of a transaction.
A. Program
B. Instruction
C. Tables
D. Contracts
Ans : Contracts
Q.10 Communication between nodes occur in the context of
flows, and is point to point.
A. True
B. False
Ans : True
Q.11 ___________ is the core business logic on which
CorDapps run.
A. Transaction
B. Contract
C. Legal prose
D. Flow
framework
Ans : Transaction
Q.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
Ans : Flows
Q.13 Corda states are immutable objects.
A. True
B. False
Ans : True
Q.14 Every node in an R3 Corda network has ______ associated
with it.
A. Instances
B. States
C. Objects
D. Private
databases
Ans : Objects
Q.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
Ans : Flow
Q.16 A _______ is a database in the node where all states
are stored.
A. State
database
B. Central
database
C. Vault
D. Blockchain
Ans : State database
Q.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
Ans : State and Non-state
Q.18 ___________ is the core business logic on which
CorDapps run.
A. Contract
B. Transaction
C. Fow
Framework
D. Legal Prose
Ans : Transaction
Q.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.
Ans : Old states are marked historic, and new states are
created.
Q.20 Oracles are an external piece of information used by
contracts.
A. True
B. False
Ans : True
Q.21 A _______ is a database in the node where all states
are stored.
A. Blockchain
B. State
database
C. Central
database
D. Vault
Ans : Vault
Q.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
Ans : Network map service
Q.23 Validity Consensus and Uniqueness Consensus are the two
types of consensus.
A. True
B. False
Ans : True
Q.24 A Corda network needs certificates to maintain the
unique identity of nodes.
A. True
B. False
Ans : True
Q.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
Ans : Node
Q.26 Uniqueness consensus solves the ______ problem.
A. Zero
spending
B. Verification
C. Agreement
D. Double
spending
Ans : Double spending
Q.27 ______ are applications that execute Smart contracts on
the Corda platform.
A. Distributed
app
B. dapps
C. Cordapps
D. Smart app
Ans : Cordapps
Q.28 Which of the following transactions have zero inputs?
A. Opening
B. Genesis
C. Issuance
D. Intial
Ans : Issuance
Q.29 Which of the following transactions have no output?
A. Issuance
B. Exits
C. Terminal
D. Genesis
Ans : Exits
Q.30 Corda was initially developed for ______ institutions.
A. Political
B. Educational
C. Cultural
D. Financial
Ans : Financial
Q.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
Ans : Attachments
Q.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
Ans : Notary pool
Q.33 When new states are created, old states are not
deleted, but marked as ______.
A. Extinct
B. Historic
C. Deprecated
D. Obselete
Ans : Historic
Q.34 A Genesis block is the first block of the blockchain.
A. True
B. False
Ans : True
Q.35 Notary clusters are classified according to their
______ and consensus algorithms.
A. Structure
B. Visibility
C. Content
D. Size
Ans : Structure
Q.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
Ans : Load balancing
Q.37 Transactions are atomic in nature.
A. True
B. False
Ans : True
Q.38 R3 Corda and Bitcoin use which computational model.
A. Unspent
Transaction Output (UTXO)
B. Internal
Execution
C. Virtual
Computing
D. Modular
Ans : Unspent Transaction Output (UTXO)
Q.39 Each block in a blockchain contains the hash of the
_________.
A. Next block
B. Previous
block
C. Genesisblock
Ans : Previous block
Q.40 ______ is a superset of blockchain technology, and both
terminologies are used interchangeably.
A. Bitcoin
B. Ethereum
C. Distributed
Ledger Technology
D. Multichain
Ans : Distributed Ledger Technology
Q.41 The Corda network is like a complete graph where all
the nodes are connected.
A. True
B. False
Ans : True
0 Comments