What is the main goal of fuzzing in smart contract testing?

To verify that the contract meets business requirements

To provide random or unexpected inputs to uncover edge-case vulnerabilities

To check the contract's compliance with legal regulations

To measure the performance of the blockchain network

A DeFi protocol allows users to take out flash loans. An auditor is reviewing the protocol for flash loan attack vectors. Which scenario represents a realistic flash loan attack?

An attacker borrows a large amount of tokens without collateral, manipulates a price oracle, and repays the loan in the same transaction, profiting from the price difference.

An attacker submits a transaction with a very low gas price to delay the execution of other transactions.

An attacker repeatedly calls a function to drain the contract's balance over multiple transactions.

An attacker creates multiple fake accounts to gain more voting power in a governance proposal.

A team is developing a smart contract that interacts with an external token contract. They want to ensure the integration works correctly. Which testing strategy is most appropriate?

Perform a manual code review of the integration points

Write unit tests for the contract's internal functions only

Write integration tests that deploy the contract and the token contract on a local blockchain and simulate real interactions

Run a static analyzer on the contract code

Which regulatory consideration is most relevant when auditing a blockchain application that handles personal data of EU citizens?

Payment Card Industry Data Security Standard (PCI DSS)

General Data Protection Regulation (GDPR)

Health Insurance Portability and Accountability Act (HIPAA)

Which technique is commonly used to identify integer overflow vulnerabilities in smart contracts?

Reviewing the contract's tokenomics whitepaper

Static analysis tools that check arithmetic operations for boundary conditions

Deploying the contract to a public blockchain

Monitoring network traffic for unusual activity

EC-CouncilBlockchain Developer Certification

Domain 7Objective 3

Auditing, Testing, and Monitoring in Blockchain Security BDC Practice Questions (Page 8)

Part of the Blockchain Security and DeFi Development domain, which makes up ~11% of our current practice bank.

52questions here

11free pages

9concepts

Questions 36–40

36foundation · easy
What is the main goal of fuzzing in smart contract testing?
Select an answer first
37application · medium
A DeFi protocol allows users to take out flash loans. An auditor is reviewing the protocol for flash loan attack vectors. Which scenario represents a realistic flash loan attack?
Select an answer first
38application · medium
A team is developing a smart contract that interacts with an external token contract. They want to ensure the integration works correctly. Which testing strategy is most appropriate?
Select an answer first
39foundation · easy
Which regulatory consideration is most relevant when auditing a blockchain application that handles personal data of EU citizens?
Select an answer first
40foundation · easy
Which technique is commonly used to identify integer overflow vulnerabilities in smart contracts?
Select an answer first

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