EMT Practice Test

1. Question Content...

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Question1: Which of the following are common inputs to the algorithm to select the next block creator in Proof of Stake?
Select all that apply

Question2: This sample code is vulnerable to which of the following attacks?

Question3: Stealth addresses are designed to do which of the following?

Question4: Which of the following attacks is designed to bypass the protections provided by digital signatures?

Question5: Which of the following is NOT a common regulatory requirement tor businesses?

Question6: Implementing data access as a blockchain smart contract is a good solution for generating an audit log of access to sensitive data

Question7: From a regulatory perspective, which of the following may be the most complicated issue around demonstrating proper data management?

Question8: Quantum computers threaten traditional cryptography because they provide polynomial solutions to mathematically "hard" problems

Question9: Which of the following is a shared benefit of open and public blockchain architectures?

Question10: Which of the following blockchains best implements need-to-know tor blockchain data?

Question11: Compromising blockchain accounts is beneficial to which of the following types ot attacks?

Question12: Digital signatures provide confidentially, integrity , and non-repudiation.

Question13: Confidential Transactions prove that inputs and outputs ot a transaction are equal.

Question14: Using public keys tor identity management helps blockchain technology achieve which of the following?

Question15: Which of the following smart contract vulnerabilities can cause a smart contract's balances ledger to become incorrect? Select all that apply

Question16: The public visibility of blockchain data increases the risks associated with the compromise of encryption algorithms

Question17: The immutability of the blockchain is an asset for which of the following? Select all that apply.

Question18: Checkpointing is designed lo protect against an attacker exploiting the mechanism by which blockchain resolves divergent chains

Question19: Which of the following is designed to allow someone to prove they know a secret without revealing it?

Question20: Multisignatures are designed to allow a set of users to make a valid transaction only if a set minimum number of them consent

Question21: Transactions can be added to DAG-based distributed ledgers without being validated but the same is not true for blockchain.

Question22: Properly encrypted data stored in the distributed ledger adequately protects data in both the short-term and the long-term

Question23: Which smart contract auditing strategy determines the inputs that will cause different parts of the code to run?

Question24: Which type of blockchain is most vulnerable to traditional Denial of Service attacks?

Question25: In which blockchain consensus algorithm does a user pay (give up coin forever) to participate in consensus?

Question26: Poorly designed smart contracts can only be disabled on the blockchain if this functionality was built in from the beginning

Question27: Which of the following blockchains does NOT use broadcast communications?

Question28: Which of the following attacks were enabled by design decisions made by the blockchain's developers? Select all that apply

Question29: If an attacker can find two values that hash to the same output what is it called?

Question30: Which of the following blockchains does NOT tie real-world identity to public keys on the blockchain?

Question31: A major advantage of a stale channel is that it provides a permanent means of transferring value between two parties

Question32: The Bitcoin hack demonstrated that there are circumstances in which the principles of blockchain must be violated to protect the blockchain.

Question33: Which of the following biockchains uses a channel-focused architectural design?

Question34: Which smart contract vulnerabilities can be exploited by a malicious miner? Select all that apply

Question35: What is the easiest way to steal cryptocurrency from a user?