R3 Corda Architecture and Network Design BDC Practice Questions (Page 7)

Questions 31–33

1. 31application · medium

   A Corda node is being set up in a corporate environment. The node needs to communicate with other nodes on the network, but the corporate firewall only allows outbound connections on specific ports. Which port must be open for the node to communicate with peers?

   • AThe database port
   • BThe RPC port
   • CThe P2P messaging port
   • DThe HTTP port
   Reveal Solution Discussion Select an answer first
2. 32expert · hard

   A Corda node is unable to start. The logs show an error related to the vault database. The node was working previously. What is the most likely cause?

   • AThe network map is unavailable.
   • BThe database schema has changed due to a CorDapp update.
   • CThe P2P messaging service is misconfigured.
   • DThe notary is not responding.
   Reveal Solution Discussion Select an answer first
3. 33application · medium

   A consortium of five banks wants to deploy a Corda network for a pilot project with a small number of transactions. They need to test the network's behavior under realistic conditions but do not want to incur the overhead of a formal governance structure. Which network deployment type is most appropriate?

   • AA production network with a dedicated notary and formal permissioning service
   • BA business network on an existing Corda network
   • CA test network with a simple notary and a basic permissioning service
   • DA standalone node with no network map
   Reveal Solution Discussion Select an answer first