- It’s important to stay updated with the new Web3 trends in order to have key knowledge regarding Web3
- Security challenges are one of the prominent topics that are highly discussed in Web3 domain
It’s crucial to ensure the security and integrity of a decentralized application and blockchain network. The responsibility to do this swiftly is given to a Web3 security engineer. As the Web3 landscape is evolving and attaining new heights, the need for skilled Web3 engineers is also on the rise in order to safeguard the ecosystem from ill-conceived threats and vulnerabilities.
This article is going to look at 12 interview questions that can help aspiring Web3 enthusiasts.
- What is the difference between Web3 and Web2 ?
Web3 enables an immersive,interactive and blockchain-driven decentralized ecosystem, while Web2 is more about multimedia screening on a two-dimensional display.
- What are the main security challenges in Web3 applications ?
Smart contract vulnerabilities adnblockchain’s consensus mechanism vulnerabilities and the security of wallet are some of the key security challenges in Web3
- Tell us about some smart contract vulnerabilities and how can be dealt with?
Attacks like reentrancy attacks and overflow of integers are some of the prominent smart contract issues that can be mitigated by the implementation of proper access control mechanisms.
- What are public and private key cryptography and how do they differ?
The public key utilizes a pair of keys for encryption and decryption, while the private key makes use of a single key for the same functionality. A public key is shareable, while a private key is kept private.
- What are digital signatures used for and how are they used in Web3 security?
Digital signatures are used to validate the integrity of data in Web 3. Digital signatures are massively used to sign transactions, which protects against any chances of tampering or counterfeiting.
- How can one use private keys for wallet management in Web3 applications?
Private keys are encapsulated in hardware wallets or encrypted storage. Private keys further ensure security in the Web 3 ecosystem.
- Explain DDoS attack and its impact on Web3 applications ?
A DDoS (distributed denial of service) attack forces a high traffic volume on a network, which exceeds the capacity of the network to sustain such traffic.
- How to ensure the security of user data in a Web3 application ?
Implementation of encryption techniques greatly helps in securing user data . Also, technologies like zero-knowledge proofs come in handy.
- What are some of the best practices for conducting security audits ?
Comprehensive code reviews and facilitating automated security tools help in the analysis of the attack surface. Following security standards and frameworks such as OWASP also helps.
- What are the security risks associated with blockchain consensus mechanisms?
51% attack in PoW (proof-of-work) blockchains and the cartel attack in PoS (proof-of-stake) are significant security risks that can compromise and tamper with the integrity of the blockchain network.
- What is the role of consensus algorithms in Web 3 security ?
In order to ensure the agreement and perseverance of the transactions across a decentralized network, the consensus algorithm acts as the mediator.
- How to address the challenge of scalability in Web 3 applications ?
There are various solutions that can address the scalability issue, such as layer 2 scaling techniques such as sidechains, sharding and off-chain processing.
