It is possible to reverse, undo or discard events from the blockchain. Can only be accomplished if a majority (i.e. >50%) of the systemssupporting/hosting the public Ledger agreed to make the rollback change.See Official Study Guide 9th edition - page 295-296 & 380-381.upvoted 2 timesJamati1 month, 4 weeks agoSelected Answer: BOfficial Study Guide 9th edition - page 295The blockchain is, in its simplest description, a distributed and immutable public ledger. This means that it can store transaction records in a waythat distributes those records among many different systems located around the world and do so in manner that prevents anyone from tamperingwith those records. The blockchain creates a data store that nobody can tamper with or destroy.upvoted 1 timesrdy4u2 months, 2 weeks agoSelected Answer: AA PKI infrastructure issues and manages digital, cryptographically secure credentials. This enables electronic transactions to take place byproving the integrity of the transaction and increasing trust. PKI is a core component of data confidentiality, information integrity, authenticationand data access control.upvoted 2 timesMrInfoSys2 months, 2 weeks agoI feel like the keyword in this question is "transactions"A Blockchain is a decentralized system that uses peer-to-peer network to enforce transactional integrity as well as security and gets rid of a thirdparty such as banks for mediation.upvoted 3 timesfranbarpro2 months, 2 weeks agoThey say "integrity of transactions" that sounds like Blockchain for me. But again, CISSP don't go with buzzwords.upvoted 3 timesCuteRabbit1683 months agoSelected Answer: AThe aim of PKI is to provide confidentiality, integrity, access control, authentication, and most importantly, non-repudiation.upvoted 1 timesjohnywolker3 months agoSelected Answer: BIn Blockchain, stored data is immutable and permanent, it cannot be modified or deleted, which makes the technology meet the main dataintegrity requirements, according to the FDA's ALCOA conceptupvoted 1 times