Governance, Upgrades, and Forks BDC Practice Questions (Page 8)

Questions 36–40

1. 36application · medium

   A blockchain network is considering a soft fork to reduce the block reward. The upgrade is backward-compatible. What is a key requirement for this soft fork to be effective?

   • AToken holders must vote on the upgrade
   • BAll nodes must upgrade to the new software
   • CThe upgrade must be activated at a specific block height
   • DA majority of miners must signal support and enforce the new rules
   Reveal Solution Discussion Select an answer first
2. 37application · medium

   A blockchain community is split over a proposed change to the block size limit. One group wants to increase it, while the other wants to keep it the same. Both groups decide to continue mining on their preferred version of the software. What is the most likely outcome?

   • ANo fork will occur because the community will eventually agree on one version
   • BA hard fork that results in two separate blockchains with different consensus rules
   • CA temporary chain split that will automatically resolve when the network reaches consensus
   • DA soft fork that will eventually resolve as one group abandons their version
   Reveal Solution Discussion Select an answer first
4. 38application · medium

   A development team wants to implement a backward-compatible upgrade that will be activated at a specific block height. They want to give node operators and miners time to prepare. Which activation method is most appropriate?

   • AActivate after a community vote on a third-party forum
   • BActivate immediately when the first miner produces a new block
   • CSet a fixed activation block height in the new client software
   • DActivate only after 90% of miners signal support via BIP9-style signaling
   Reveal Solution Discussion Select an answer first
5. 39application · medium

   A blockchain network is considering a governance proposal to change the block reward. The proposal has been discussed in community forums and has support from several major mining pools. However, a large number of node operators have not upgraded their software and are unaware of the proposal. What is the most important risk to the successful adoption of this change?

   • AToken holders will sell their tokens, causing a price drop
   • BNode operators may not upgrade, leading to a chain split if the change is a hard fork
   • CMining pools will lose revenue and stop mining
   • DThe proposal will be automatically rejected by the governance system
   Reveal Solution Discussion Select an answer first
6. 40foundation · easy

   What is a centralization risk in blockchain governance?

   • AA small group of developers or token holders gaining disproportionate influence over upgrade decisions.
   • BThe use of open-source software, which allows anyone to view the code.
   • CThe absence of a formal governance process, which prevents any single entity from making decisions.
   • DThe network having too many nodes, making it difficult to reach consensus.
   Reveal Solution Discussion Select an answer first