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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:

Keep your project on time and within budget by controlling the baselines, budget, and schedule. View our comprehensive guide to project management, from project scheduling to cost control, from the experts at Global Knowledge.

Project quality management is the process of determining the quality standards that are applicable to a project and devising a way to satisfy them. Learn more here.

Project Scope Management sets the foundation for the creation, development and successful delivery of a project. Learn about the project management process here.

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.

These technology job roles are proven to be essential during a crisis as enterprises scramble to change strategies and meet goals. The skills demonstrated by IT professionals in these 10 positions can make the difference between business success and failure, especially during a recession.

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. 

IT Professionalism Europe (ITPE) and Global Knowledge jointly hosted online public “Tech Talk” on Ethics and Artificial Intelligence. Two leading speakers in the field, Dr. Anna Jobin of the Health Ethics & Policy Lab at ETH Zurich and Dr. Lorien Pratt, Chief Scientist and co-founder of Quantellia in Silicon Valley will be sharing their insights. The discussion includes ethical dimensions to artificial intelligence (AI) and why ethics are fundamental to AI research and implementation. They also explore ethical requirements, standards, and best practices that underpin the future of AI.