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

Product typeBook

Published inJan 2024

PublisherPackt

ISBN-139781835461532

Edition3rd Edition

Concepts

Cybersecurity

Author (1)

Ian Neil

Network Infrastructure

Network infrastructure is a mixture of networking devices, protocols, and routing packets that all work together in an interconnected environment.

Table 10.2 presents an extract of the OSI reference model, which consists of four key layers. Here, you’ll see the names of those essential devices that comprise network infrastructure, including their functions and the layers at which they operate:

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CompTIA Security+ SY0-701 Certification Guide - Third Edition

Published in: Jan 2024Publisher: PacktISBN-13: 9781835461532

Author (1)

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.
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Layer	Devices	Function
Layer 7 Application Layer	Web Application Firewall (WAF) Network Intrusion Prevention System (NIPS)	Protocols: DNS, SMTP, HTTP, SMB, and FTP
Layer 4 Transport Layer	Load Balancer	TCP/UDP
Layer 3 Network Layer	Routers / Subnets ...

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

Network Infrastructure

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Author (1)

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