May 2024
Beginner to intermediate
336 pages
8h 20m
English
book
31 Days Before your Cisco Certified Support Technician (CCST) Networking 100-150 Exam: A Day-By-Day Review Guide for the CCST-Networking Certification Exam
by Allan Johnson
Content preview from 31 Days Before your Cisco Certified Support Technician (CCST) Networking 100-150 Exam: A Day-By-Day Review Guide for the CCST-Networking Certification Exam
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Day 5
Firewalls
Key Topics
Firewalls are a crucial aspect of network security, acting as gatekeepers between networks or between a network and the Internet. They enforce security rules and policies, determining which traffic is allowed or denied. Today, we review the operation of firewalls, focusing on different types, their functionalities, and some examples in Cisco and Linux environments.
Firewall Devices
Firewalls monitor and control incoming and outgoing network traffic based on predetermined security rules. They can block specific ports and protocols, thereby preventing ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.