A bank is joining a Corda business network as a new node. The network operator has provided the node with a certificate signed by the network's identity service and a network map URL. The node's configuration file has been updated with these details. After starting the node, the operator notices that the node can see the network map but cannot communicate with any peer nodes. What is the most likely missing configuration element?

The node's P2P messaging port is not reachable from the network

The node's vault is not initialized with the required contract states

The node's flow framework is not enabled

The node is not configured with a notary address

A Corda network operator is troubleshooting a node that cannot send transactions to a specific counterparty. The node can send transactions to other parties. The network map shows the counterparty as active. What is the most likely cause?

The counterparty's node is not running.

The sending node's flow framework is stuck.

The sending node's vault is corrupted.

When designing a Corda network, which factor is most important when selecting a notary service?

The notary's consensus algorithm and fault tolerance

The notary's ability to store all transaction data

The notary's compatibility with the network map

EC-CouncilBlockchain Developer Certification

Domain 8Objective 3

R3 Corda Architecture and Network Design BDC Practice Questions (Page 5)

Part of the Enterprise Blockchain Platforms domain, which makes up ~10% of our current practice bank.

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Questions 21–25

21application · medium
A bank is joining a Corda business network as a new node. The network operator has provided the node with a certificate signed by the network's identity service and a network map URL. The node's configuration file has been updated with these details. After starting the node, the operator notices that the node can see the network map but cannot communicate with any peer nodes. What is the most likely missing configuration element?
Select an answer first
22expert · hard
A Corda network operator is troubleshooting a node that cannot send transactions to a specific counterparty. The node can send transactions to other parties. The network map shows the counterparty as active. What is the most likely cause?
Select an answer first
23application · medium
A Corda node is running a flow that needs to query the node's vault for states of a specific type. Which API should the flow use?
Select an answer first
24foundation · easy
Which Corda node component is responsible for executing the business logic of a transaction and coordinating the steps of a workflow, including sending and receiving messages with other nodes?
Select an answer first
25foundation · easy
When designing a Corda network, which factor is most important when selecting a notary service?
Select an answer first

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R3 Corda Architecture and Network Design BDC Practice Questions (Page 5)

Questions 21–25

A Corda network operator is troubleshooting a node that cannot send transactions to a specific counterparty. The node can send transactions to other parties. The network map shows the counterparty as active. What is the most likely cause?

A Corda node is running a flow that needs to query the node's vault for states of a specific type. Which API should the flow use?

Which Corda node component is responsible for executing the business logic of a transaction and coordinating the steps of a workflow, including sending and receiving messages with other nodes?

When designing a Corda network, which factor is most important when selecting a notary service?

Keep studying — Enterprise Blockchain Platforms