Network Communication and Protocol Layers BDC Practice Questions (Page 10)

Questions 46–47

1. 46expert · hard

   A permissioned blockchain network is facing a potential eclipse attack. The network currently uses a simple peer discovery mechanism. Which combination of measures would provide the strongest defense?

   • AUse a whitelist of trusted enodes and require mutual TLS authentication.
   • BUse a random peer selection algorithm without any authentication.
   • CIncrease the maximum peer count to allow more connections.
   • DDisable peer discovery and use a static list of peers.
   Reveal Solution Discussion Select an answer first
2. 47foundation · easy

   What is the primary goal of an eclipse attack on a blockchain node?

   • ATo create a large number of fake identities to influence consensus
   • BTo isolate a node from the rest of the network by controlling all of its connections
   • CTo intercept and decrypt all traffic between two nodes
   • DTo flood the network with spam transactions to slow it down
   Reveal Solution Discussion Select an answer first