A team is choosing between a trustless bridge and a federated bridge for a new cross-chain application. They have a tight deadline and limited security audit budget. Which factor should most influence their decision?

The choice does not matter because both bridges have the same security properties.

The federated bridge is always more secure because it uses known validators.

The trustless bridge is always cheaper to operate because it has no validators.

The trustless bridge requires more complex code and a longer audit, while the federated bridge can be deployed faster with a smaller audit scope.

A development team is building a cross-chain application that must support both Cosmos-based chains and Ethereum. They want to use IBC for Cosmos chains but need a solution for Ethereum. They also want to minimize custom development. What is the most practical approach?

Use only IBC and require Ethereum to become a Cosmos SDK chain

Build a custom relay chain that connects all chains

Use IBC for Cosmos chains and a separate trusted bridge for Ethereum

Use a general-purpose protocol like Axelar or LayerZero that supports both Cosmos and Ethereum

What is the primary role of a blockchain bridge?

To mine new cryptocurrency tokens on a blockchain

To increase the block size of a blockchain

To provide a user interface for blockchain explorers

To enable the transfer of assets or data between two different blockchain networks

What is meant by 'Web3 interoperability'?

The process of converting Web2 websites into blockchain-based versions

The use of Web3 browsers to access only one blockchain

The replacement of all web servers with blockchain nodes

The ability of decentralized applications to work seamlessly across different blockchain networks and with traditional web services

What distinguishes a trustless bridge from a trusted bridge?

A trustless bridge can only transfer data, not assets

A trustless bridge uses smart contracts and cryptographic proofs to minimize the need for a trusted third party

A trustless bridge requires users to provide personal identification

A trustless bridge is always faster than a trusted bridge

EC-CouncilBlockchain Developer Certification

Domain 9Objective 4

Interoperability Innovations BDC Practice Questions (Page 7)

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

54questions here

11free pages

6concepts

Questions 31–35

31expert · medium
A team is choosing between a trustless bridge and a federated bridge for a new cross-chain application. They have a tight deadline and limited security audit budget. Which factor should most influence their decision?
Select an answer first
32expert · hard
A development team is building a cross-chain application that must support both Cosmos-based chains and Ethereum. They want to use IBC for Cosmos chains but need a solution for Ethereum. They also want to minimize custom development. What is the most practical approach?
Select an answer first
33foundation · easy
What is the primary role of a blockchain bridge?
Select an answer first
34foundation · easy
What is meant by 'Web3 interoperability'?
Select an answer first
35foundation · easy
What distinguishes a trustless bridge from a trusted bridge?
Select an answer first

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