Governance, Upgrades, and Forks BDC Practice Questions (Page 9)

Questions 41–45

1. 41application · medium

   A blockchain network uses a governance model where a small group of core developers has the final say on all protocol changes. What is the primary risk of this approach?

   • AThe network will be more resilient because there is a clear decision-making process
   • BThe network will be more decentralized because developers are experts
   • CThe network will become more secure because decisions are made quickly
   • DThe network may become centralized, and changes may not reflect the broader community's interests
   Reveal Solution Discussion Select an answer first
2. 42foundation · easy

   Which stakeholder group typically proposes and implements the technical code changes for a blockchain upgrade?

   • AToken holders
   • BNode operators
   • CMiners
   • DCore developers
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4. 43foundation · easy

   Which process is typically involved in implementing a hard fork upgrade?

   • AThe upgrade is automatically applied to all nodes without any action from node operators.
   • BOnly miners need to upgrade; node operators can continue using the old software indefinitely.
   • CAll nodes must upgrade to the new client software before the fork block to remain on the same chain.
   • DThe upgrade is optional and does not affect consensus rules.
   Reveal Solution Discussion Select an answer first
5. 44expert · hard

   A blockchain network is facing a security vulnerability that requires an immediate upgrade. The proposed fix is a soft fork, but some miners are reluctant to upgrade because it will reduce their rewards. What is the best course of action?

   • ADelay the upgrade until all miners agree
   • BImplement a hard fork instead to force all nodes to upgrade
   • CPay miners to upgrade through a governance fund
   • DProceed with the soft fork and rely on the majority of miners to enforce the fix
   Reveal Solution Discussion Select an answer first
6. 45expert · hard

   A blockchain network plans to implement a hard fork that changes the block reward schedule. The team wants to ensure that the fork is adopted without a split. They have the support of the majority of miners, but a significant number of node operators are running outdated software and have not responded to upgrade notices. What is the most effective strategy to maximize adoption and minimize the risk of a split?

   • AForce all nodes to upgrade by disabling the old chain
   • BUse a soft fork instead of a hard fork
   • CSet a future activation block height and launch a communication campaign to encourage node operators to upgrade before that block
   • DActivate the fork immediately and rely on miners to produce the new chain
   Reveal Solution Discussion Select an answer first