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The process of learning how to subnet IP addresses begins with understanding binary numbers and decimal conversions along with the basic structure of IPv4 addresses. This paper focuses on the mathematics of binary numbering and IP address structure.
This paper provides an overview of how to judge the rigor of one's decision making. It describes how anyone can make better (higher quality) decisions, in any situation.
Get an insider’s take on 2017 cloud computing, DevOps, and Internet of Things (IoT) trends from an industry expert.
Certifications are the most common way in IT to prove you have the skills to solve various technical and business challenges. In this article, I'll address a range of skill sets. For each certification listed, I've included what the certification measures, the requirements to obtain it.
I am a VMware Certified Instructor and every single time I teach, I get questions regarding certification. IT certifications always seem to be a controversial topic, and the question is always, "Why should I become certified?"
Unlike ITIL, DevOps is more of a philosophy than a formal framework. DevOps, which is short for Collaboration between Development and Operations, arose as a movement within IT best practices when IT managers began to realize that something needed to be done to close the communications and collaboration gap between development groups and support operations staff. After some time and examination, it became clear that there was no inherent conflict between the DevOps movement and ITIL—the two, in fact, are quite complementary.
For every organization, effective cybersecurity is reliant on a careful deployment of technology, processes and people. The Global Knowledge cybersecurity perspective features a three-tiered organizational matrix, ranging from foundational to expert skills, coupled with eight functional specializations that encompass the features of a successful cybersecurity organization.
The key difference between hubs, switches and bridges is that hubs operate at Layer 1 of the OSI model, while bridges and switches work with MAC addresses at Layer 2 of the OSI model.
Here are five date points from the 2020 IT Skills and Salary Report that illustrate important trends in professional development, skills gaps, hiring and top-paying certifications.
The 2021 revised and updated version CISSP (Certified Information System Security Practitioner) certification exam will be released on May 1, 2021. This new version of the popular CISSP exam will include a modest revision and re-organization of previously included topics, but will integrate a significant number of new topics.