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Look back at the some of the highest paying IT certifications of 2020.
Most Internet users don't realize that often a website or other service that seems slow to respond is actually working fine. Instead, it’s the resolution of DNS that is putting a glitch in your giddy up. Fortunately, there are several steps you can take to optimize your DNS to get better performance.
Learn about the five types of area networks.
An quick fundamental overview of layer two devices. To learn more about this and similar topics, enroll in our exclusive Understanding Networking Fundamentals course.
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.
While Apple has created many fine things, they were yet to be created themselves when Xerox PARC scientists created Media Access Control addresses. These MAC addresses are 48 bits or 6 bytes long, so they are also known as MAC-48 or EUI-48. EUI stands for Extended Unique Identifier. It is written in hexadecimal characters as shown below:
As IT departments struggle with skills gaps and businesses attempt to recovery economically from the COVID-19 pandemic, these 10 IT skills are essential to drive success. Job roles in these areas pay well, but decision-makers are struggling to find qualified candidates. If you’re looking to make an IT skills investment or start a new career path this year, these are the areas to consider.
Kubernetes automates container management. The process of container orchestration is so complex that trying to manage containers by hand has become impossible. There are many, components to container orchestration, but one of the most misunderstood is networking. In this 1-hour webinar we’ll explore how k8s actually performs IP networking and service discovery, two of the most critical components for successfully delivering microservices. We’ll examine how kubernetes carries the burden of cloud networking and lastly what it takes to pass the CKAD/CKA Certifications.
Agile is a group of methodologies (including SCRUM, XP, Lean, and Kanban) that values a pragmatic mind-set and a flexible approach. Most, but not all agile methodologies, apply an incremental approach utilizing short work intervals to provide functional results quickly and adjust for the customer’s evolving understanding of the real need. This session will look at the foundation for agile and then take a high-level walk through the agile life cycle.
While cybersecurity remains the most popular certification category in our IT Skills and Salary Report, foundational-level certifications highlight our list of the most popular IT certifications of 2020.