R3 Corda Architecture and Network Design BDC Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A Corda network operator is designing a network for a cross-border trade finance application. The network will have nodes in multiple countries, and the application requires high throughput and low latency for a large volume of transactions. The operator must choose a notary configuration. Which configuration best balances performance and decentralization?

   • AA highly available notary cluster with nodes in multiple regions
   • BA validating notary that checks all transaction inputs
   • CA single notary running in a single region
   • DA non-validating notary with a single node
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A Corda node is unable to find a counterparty's address when initiating a transaction. The node has been running for a while and has successfully transacted with other parties. What is the most likely cause?

   • AThe counterparty is not registered with the network map.
   • BThe node's vault is corrupted.
   • CThe P2P messaging service is down.
   • DThe flow framework is stuck.
   Reveal Solution Discussion Select an answer first
4. 18expert · hard

   A consortium is designing a Corda network for a cross-border trade finance application. They have two requirements: (1) transactions must be finalized quickly even if some notary nodes are unreachable, and (2) the network must be able to add new participants without reconfiguring existing nodes. Which notary and network design best meets both requirements?

   • AA BFT notary cluster and a dynamic network map.
   • BA single notary with a backup and a permissioned network map.
   • CA single notary with a highly available cluster and a static network map.
   • DMultiple notaries, each with a different transaction type, and a dynamic network map.
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   Which of the following is a network parameter that can be configured in a Corda network?

   • AThe vault database type
   • BThe maximum transaction size
   • CThe minimum platform version
   • DThe default flow timeout
   Reveal Solution Discussion Select an answer first
6. 20application · medium

   A Corda node is running a flow that needs to send a message to a peer node and wait for a response. Which component of the Corda node handles the message exchange?

   • AThe flow framework
   • BThe P2P messaging service
   • CThe vault
   • DThe network map
   Reveal Solution Discussion Select an answer first