Spinning up a large number of temporary mining servers is likely part of what type of attack?

Which of the following is a takenaway from the pigeocoin/Bitcom Core hack?

Both sidechains and slate channels rely on the original blockchain for security and as a fallback if issues occur.

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

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

Which of the following are necessary properties for a cryptographic hash function to be secure? Select all that apply

This sample code is vulnerable to which of the following attacks? Select all that apply

Which algorithm was adopted by Bitcoin's creator for use as a consensus mechanism?

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

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

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

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

Which of the following features were exploited as part of the Verge cryptocurrency hack? Select all that apply.