Governance, Upgrades, and Forks BDC Practice Questions (Page 7)

Questions 31–35

1. 31expert · hard

   A blockchain network uses a governance model where a small number of large token holders can easily pass proposals. This has led to concerns about centralization and unfair influence. What is the best way to address this issue?

   • AAllow developers to override any proposal
   • BImplement a quadratic voting system to reduce the influence of large token holders
   • CGive miners veto power over all proposals
   • DRequire a supermajority vote for all proposals
   Reveal Solution Discussion Select an answer first
2. 32expert · hard

   A blockchain network is facing a critical security vulnerability. The development team proposes a hard fork to fix it, but the fix is controversial because it will also change the token economics. A minority of node operators and miners oppose the change and threaten to continue the old chain. What is the most important consideration for the development team?

   • AThe fix should be implemented as a soft fork to avoid the split
   • BThe fix should be delayed until all stakeholders agree
   • CThe fix must be implemented quickly, but the risk of a contentious split must be weighed against the security risk
   • DThe fix should be implemented immediately regardless of the split risk
   Reveal Solution Discussion Select an answer first
4. 33foundation · easy

   Which of the following is a security risk associated with a contentious hard fork?

   • AThe old chain automatically becomes more secure because it has fewer nodes.
   • BReplay attacks, where transactions valid on one chain are replayed on the other chain.
   • CThe fork eliminates the need for consensus rules, making the network faster.
   • DThe new chain is immune to 51% attacks because it has a new genesis block.
   Reveal Solution Discussion Select an answer first
5. 34application · medium

   A blockchain community is deeply divided over a proposed protocol change. One faction wants to increase the block size limit, while the other wants to keep it unchanged. The change is implemented as a hard fork, and both chains continue to exist. What is the most likely immediate technical consequence?

   • AThe network continues as one chain with the new block size limit
   • BThe network continues as one chain with the old block size limit
   • CThe network temporarily stops producing blocks until consensus is reached
   • DThe network splits into two separate chains with different consensus rules
   Reveal Solution Discussion Select an answer first
6. 35expert · hard

   A blockchain network is planning a soft fork that changes the transaction signature scheme. The upgrade is backward-compatible, but there is a risk that old nodes might accept transactions that new nodes consider invalid. What is the best way to mitigate this risk?

   • ARequire all nodes to upgrade to the new software before activation
   • BUse a hard fork instead to ensure all nodes upgrade
   • CSet a high activation threshold, such as 95% of miners signaling support
   • DActivate the soft fork immediately without waiting for miner signaling
   Reveal Solution Discussion Select an answer first