What is a notable future trend in blockchain scalability?

Reduction of block sizes to increase security

Increased use of rollups and zero-knowledge proofs

Return to purely centralized databases

Elimination of all consensus mechanisms

A blockchain platform is planning to implement sharding to increase throughput. They have a large validator set and want to ensure that each shard is secure. Which strategy is most effective?

Randomly assign validators to shards at regular intervals using a verifiable random function (VRF).

Allow validators to choose their shard based on their expertise.

Use a fixed assignment of validators to shards for the lifetime of the network.

Assign validators to shards based on the amount of stake they hold, with the largest stakers in the same shard.

How does sharding increase transaction throughput?

By processing transactions in parallel across multiple shards

By using a more efficient consensus algorithm

By reducing the number of nodes in the network

By increasing the block size limit

What is the primary purpose of a consensus mechanism in a blockchain network?

To store transaction data in a distributed database

To provide a mechanism for users to vote on protocol upgrades

To ensure that all honest nodes agree on a single, consistent state of the ledger

To encrypt transaction data so that only authorized parties can read it

Compared to Proof of Work, Proof of Stake generally offers which scalability benefit?

No need for a cryptocurrency to operate

Higher security against all types of attacks

Lower energy consumption and faster block times

Complete decentralization with no minimum stake

EC-CouncilBlockchain Developer Certification

Domain 9Objective 2

Consensus and Scalability Innovations BDC Practice Questions (Page 4)

Part of the Advanced Concepts and Future Innovations domain, which makes up ~12% of our current practice bank.

55questions here

11free pages

11concepts

11 Concepts in This Objective

Consensus Mechanisms Overview
Proof of Work (PoW)
Proof of Stake (PoS)
Delegated Proof of Stake (DPoS)
Practical Byzantine Fault Tolerance (PBFT)
Directed Acyclic Graph (DAG) Based Consensus
Sharding
Layer 2 Scaling Solutions
Cross-Chain Interoperability Protocols
Scalability vs. Decentralization Trade-offs
Future Trends in Consensus and Scalability

Questions 16–20

16foundation · easy
What is a notable future trend in blockchain scalability?
Select an answer first
17application · medium
A blockchain platform is planning to implement sharding to increase throughput. They have a large validator set and want to ensure that each shard is secure. Which strategy is most effective?
Select an answer first
18foundation · easy
How does sharding increase transaction throughput?
Select an answer first
19foundation · easy
What is the primary purpose of a consensus mechanism in a blockchain network?
Select an answer first
20foundation · easy
Compared to Proof of Work, Proof of Stake generally offers which scalability benefit?
Select an answer first

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