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You're reading from  CompTIA Security+ SY0-701 Certification Guide - Third Edition

Product typeBook
Published inJan 2024
PublisherPackt
ISBN-139781835461532
Edition3rd Edition
Concepts
Cybersecurity
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Author (1)
Ian Neil
Ian Neil
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Ian Neil

Ian Neil is one of the world's top trainers of Security+. He is able to break down information into manageable chunks so that people with no background knowledge can gain the skills required to become certified. He has recently worked for the US Army in Europe and designed a Security+ course that catered to people from all backgrounds (not just IT professionals), with an extremely successful pass rate. He is an MCT, MCSE, A+, Network+, Security+, CASP, and RESILIA practitioner that has worked with high-end training providers over the past 23 years and was one of the first technical trainers to train Microsoft internal staff when they opened their Bucharest Office in 2006.
Read more about Ian Neil

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Blockchain

Originally powering Bitcoin, blockchain transcends its origins. This digital ledger thrives on data batches called blocks that are distributed across countless computers, a strategy that ensures security through decentralization. To tamper with it is futile, as altering data necessitates changing copies on every computer—a security strategy that works on safety in numbers.

Beyond cryptocurrencies, blockchain can record financial, medical, and property transactions. Each block holds data and hashes, forming a chain within this distributed public ledger. To add a block, a computer cracks a puzzle, signaling readiness to the network, which is a process known as proof of work. Once accepted, a new block joins the chain. Information from the blockchain, a trusted and distributed public ledger, assures accuracy.

For example, consider siblings inheriting a house. If the deeds of the house are kept on the blockchain, they can trace its history within the public ledger...

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CompTIA Security+ SY0-701 Certification Guide - Third Edition
Published in: Jan 2024Publisher: PacktISBN-13: 9781835461532
© 2024 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Ian Neil

Ian Neil is one of the world's top trainers of Security+. He is able to break down information into manageable chunks so that people with no background knowledge can gain the skills required to become certified. He has recently worked for the US Army in Europe and designed a Security+ course that catered to people from all backgrounds (not just IT professionals), with an extremely successful pass rate. He is an MCT, MCSE, A+, Network+, Security+, CASP, and RESILIA practitioner that has worked with high-end training providers over the past 23 years and was one of the first technical trainers to train Microsoft internal staff when they opened their Bucharest Office in 2006.
Read more about Ian Neil

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