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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.
If any of the following reminiscences ring true to you, have you moved beyond them? If not, it might be time to make some new discoveries.
Whether you’re a beginner or intermediate Python developer, you’ll want to keep this guide close to your keyboard and Python editors. In it, you’ll find sample use cases for many of the most common language constructs and tasks that you’ll likely need to perform, such as reading a file or working with a database.
If you want to stay relevant as an IT professional, you have two choices: evolve your current skills or make a big change.
It has been over three years since the last revision of the CompTIA Security+ exam back on May 1, 2014. In fall of 2017, the latest version, SY0-501, was released. This revamped exam retains the same six domains as established in SY0-401, which emphasizes security in three main areas: application, data, and host.
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.
As organizations struggle to balance budgets and prioritize training, skills gaps are growing—75% of North American decision-makers report existing skills shortages. And the impacts are potentially disastrous. With so much on the line, initial and ongoing training are instrumental to project and organizational success.
There are two types of networks: those that have been hacked and those that will be. To defend against hacks, cyber professionals can benefit greatly from ethical hacking programs.
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.