EMT Practice Test

1. Question Content...

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Question1: Which of the following attacks were enabled by design decisions made by the blockchain's developers? Select all that apply

Question2: Which blockchain security control either risks centralization or permanently divergent chains?

Question3: The Bitcoin hack demonstrated that there are circumstances in which the principles of blockchain must be violated to protect the blockchain.

Question4: Implementing data access as a blockchain smart contract is a good solution for generating an audit log of access to sensitive data

Question5: Which of the following are shared benefits of private and permissioned blockchain architectures? Select all that apply.

Question6: Checkpointing is designed lo protect against an attacker exploiting the mechanism by which blockchain resolves divergent chains

Question7: Which of the following biockchains uses a channel-focused architectural design?

Question8: The public visibility of blockchain data increases the risks associated with the compromise of encryption algorithms

Question9: Confidential Transactions prove that inputs and outputs ot a transaction are equal.

Question10: Which smart contract vulnerability allows an attacker to make a profit off a smart contract cryptocurrency exchange like Bancor?

Question11: Blockchain consensus algorithms use the scarcity of a resource and economic incentives to protect the security of the distributed ledger.

Question12: Which of the following blockchains uses a channel-focused architectural design?

Question13: Which of the following attacks only requires a single account and performs only normal blockchain operations?

Question14: Which of the following is NOT a common regulatory requirement tor businesses?

Question15: Which of the following blockchains does NOT tie real-world identity to public keys on the blockchain?

Question16: Compromising blockchain accounts is beneficial to which of the following types ot attacks?

Question17: Which of the following attacks takes advantage of the fact that transaction information is posted on the blockchain to infer sensitive information?

Question18: All smart contracts are audited for correctness and checked for malicious code before being uploaded to the blockchain.

Question19: Stealth addresses are designed to do which of the following?

Question20: In both blockchain and DAG-based distributed ledgers, the trust in all transactions that are part of the ledger Increases as additional transactions are added to the ledger.

Question21: Which of the following blockchains has a built-in consensus algorithm?

Question22: The code of smart contracts that are "self-destructed" is no longer visible to the blockchain network

Question23: Which types of network attacks focus on partitioning the blockchain network? Select all that apply

Question24: The goal of most network-based blockchain attacks is to enable what type of attack?

Question25: From a regulatory perspective, which of the following may be the most complicated issue around demonstrating proper data management?

Question26: Which of the following types of attacks are disincentivized in the long-term on blockchains like Bitcoin?

Question27: Which of the following blockchains separates transaction validation and ordering of transactions in blocks into separate steps?

Question28: Which of the following blockchain consensus algorithms is the most sustainable long-term?

Question29: Which of the following attacks is designed to bypass the protections provided by digital signatures?

Question30: Properly encrypted data stored in the distributed ledger adequately protects data in both the short-term and the long-term

Question31: What is the easiest way to steal cryptocurrency from a user?

Question32: Which of the following are common inputs to the algorithm to select the next block creator in Proof of Stake?
Select all that apply

Question33: A blockchain-based solution best achieves which of the following goals?

Question34: Which of the following blockchains is designed to allow multiple blockchains to run on the same network?

Question35: Checkpointing is designed to protect against an attacker exploiting the mechanism by which blockchain resolves divergent chains