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Cryptography can be used for many purposes, but there are two types of cryptographic algorithms you need to understand: symmetric and asymmetric. Learn more from the experts at Global Knowledge.

There’s a reason why one out of four certified IT professionals in North America hold at least one CompTIA certification. IT professionals who hold at least one certification have higher salaries, are more productive and generally are more satisfied in their job than their non-certified peers.

Often, we don't have time to learn the reasons behind the standards we use. But learning what instigated a standard goes a long way toward not only understanding its importance, but also more easily and effectively applying it in your workplace. In this hour-long webinar, Global Knowledge instructor Keith Sorn will discuss common networking standards and explain how they were determined and why they are relevant. He will fill you in on things like why it's important to use proper color-coding standards when making cable and why the length limitations on wired cable are essential. He will also explain new standards, such as power over fiber.

Here's an introduction to encryption. What is it? Why do we need it? It's a complicated area, so we're here to help get your started. You'll understand the general function of three categories of mathematical ciphers: Symmetric, Asymmetric and Hashing. 

This Certification Prep Guide provides an overview of the current CompTIA Cloud+ certification and offers helpful tips that you can use when preparing for your CompTIA Cloud+ certification exam.

There’s undeniably good news for Citrix-certified IT professionals this year. Pursuing at least one Citrix certification has the potential to unlock a host of benefits ranging from above average salaries to greater prestige in the workplace thanks to improved knowledge and capabilities resulting from certifications. Simply put: Citrix certifications pay big dividends according to the Global Knowledge 2019 IT Skills and Salary Report.

Look back at the some of the highest paying IT certifications of 2020.

Topping this year’s list is ISACA with four IT certifications, followed by AWS, Cisco and Citrix. Our 2018 IT Skills & Salary Report also shows trending areas in cybersecurity, cloud computing, and business—demonstrating what skills you need to become a more valuable and higher-paid IT professional.

Here are 18 certification options, in no particular order, that are worth your effort based on site searches, feedback from subject matter experts and data in the Global Knowledge 2019 IT Skills and Salary Report.

Which mainstay certifications should be in your list of credentials? What's the next up-and-coming certification? This article will help you answer both questions by providing a review of the 15 top-paying certifications.