EXIN Blockchain Foundation - BLOCKCHAINF Exam Questions

A. A one-way function that converts input to a unique string output B. The block-ID of the block C. All the above D. A function that stores data behind a key E. A two-way function used for condensing information

A. Same as the user private key B. Digital fingerprint of the block C. Metadata used for ID D. Unique number to show it's a Bitcoin block

A. True B. False

A. True B. False

A. a replacement currency for the U.S. dollar B. another application that runs on a Blockchain C. replacing bartering in many parts of the world D. the same as all other cryptocurrencies

A. the record is moved to a secure server B. the record is stored on a central node C. it can be changed by an authorized person D. the record is permanent
Reference can be changed by an authorized person

A. By allowing voters to trust their vote has been counted B. By controlling who gets to vote C. By only allowing a certain number of votes per person D. By revealing the identity of each voter and who or what they voted for

A. Fault Tolerance through distribution B. Anonymity through cryptography C. Immutability through hashing D. Security through distribution

A. A private Blockchain does not use proof of work consensus B. A private Blockchain often requires the identity of users to be known C. A private Blockchain is not distributed D. A private Blockchain is more efficient and has faster transaction times