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VLANs and Trunks

White Paper | June 11, 2015

When properly utilized, VLANs and trunks provide flexibility, stability and ease of troubleshooting. This paper provides technical details about VLANs and trunks, along with design options at a basic to intermediate level. Recommendations and commands are included throughout.

Switching Operations

White Paper | June 05, 2015

Switches play a vital role in moving data from one device to another. Specifically, switches greatly improve network performance, compared to hubs, by providing dedicated bandwidth to each end device, supporting full-duplex connectivity, utilizing the MAC address table to make forwarding decisions, and utilizing ASICs and CAM tables to increase the rate at which frames can be processed.

An Introduction to AWS Security

White Paper | May 05, 2015

AWS is an incredibly rich ecosystem of services and tools, some of which have security aspects baked in (like S3 SSE), and others that provide overarching security capabilities (like IAM and VPC) that apply to many services. With regard to data storage, operating system, and applications, security functions largely the same in the cloud or on-premises software. Customers can and should continue to follow best practices that have served them well in their own data centers.

IPv6: Are We There Yet?

White Paper | April 09, 2015

The first big push toward implementation of IPv6 was mobile devices. Now, one of the driving forces is the Internet of Things. As the name implies, this means everything, including machine to machine communication (M2M).

Introducing Amazon RDS for Aurora

White Paper | Feb. 27, 2015

Discover how the enhanced performance and reliability of Amazon Aurora will help AWS customers reduce performance bottlenecks in their applications. The relatively low cost of Aurora will tempt many customers to migrate workloads to this implementation of RDS.

What’s the Value of an AWS Certification?

Article | Feb. 03, 2015

Our IT Skills & Salary Survey revealed the average AWS certified salary was over 100k - how's that for AWS certification value? Read on for more!

What’s the Value of an AWS Certification?

Article | Feb. 03, 2015

It’s common knowledge that earning an AWS certification is a great way to qualify your experience in the eyes of your peers and employer and to increase your organization’s proficiency with AWS-based applications. However, there is another benefit that has not be quantified until now. Results from the 2015 IT Skills and Salary Survey conducted by Global Knowledge and Windows IT Pro revealed that the average pay of four AWS certifications exceeded $100,000. While there is no guarantee that a certification equals a six-figure salary, it certainly couldn’t hurt.

Policy-Based Routing: What Is It and How Is It Used?

Article | Jan. 08, 2015

What is policy-based routing? PBR is the process of using a route map to match on something more than the destination and then defining the path out of the router based on those conditions. Learn more here!

An Introduction to Amazon Redshift

White Paper | Dec. 16, 2014

Amazon Redshift opens up enterprise data warehouse (EDW) capabilities to even the smallest of businesses, yet its costs, security, and flexibility also make it appealing to the largest of enterprises. It allows companies to easily and conveniently scale their EDW needs both up and down, and as a managed service, it allows your team to offload all of the "undifferentiated heavy lifting" of building and maintaining an EDW. Its raw storage costs are about one-fifth to one-tenth of traditional in-house EDW, and AWS has taken great care to ensure its performance is still competitive with those in-house solutions. Before deciding to use Amazon Redshift, however, it's important to understand what it is and is not.

AWS Storage Solutions 101

White Paper | Dec. 08, 2014

This white paper explores the native AWS storage solutions, enabling you to deliver applications in the cloud in the most efficient, cost-effective, and secure manner. In terms of storage, it's important to understand the characteristics of each AWS storage option so that you can implement one or more AWS storage services to meet your needs. Often, you'll find that utilizing multiple storage options together will give you the best outcomes.

PowerVm Virtualization Essentials

White Paper | Oct. 09, 2014

PowerVM is the virtualization environment for AIX, Linux, and IBM i running on the IBM POWER hardware platform. This white paper provides an overview of PowerVM concepts, architecture, terminology, and capabilities.

Binary and IP Address Basics of Subnetting

White Paper | Aug. 07, 2014

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.

The Basics of Configuring and Using Cisco Network Address Translation

White Paper | July 31, 2014

While the Internet uses IP addresses assigned by an Internet authority such as the American Registry for Internet Numbers (ARIN), there are too few of these numbers to uniquely identify the millions of computers and computing devices in the world. Therefore, most enterprises use private addresses which allow them to identify the aforementioned computers. Of course, these IP numbers cannot be allowed on the Internet because all private networks use the same ones so there would be vast overlapping of addresses, and the addresses are not compliant anyway. Therefore, it is necessary to change the identity of a private host to a legal public host. This process is called Network Address Translation (NAT) and may be implemented on Cisco firewall products and Cisco routers. The firewall device(s) at the Internet demarcation point is by far the more popular way to implement NAT, but routers are used in small offices or small-to-medium-sized networks in which a separate firewalling solution is not possible or affordable. The focus of this paper is on the router-based NAT solution.

Critical Concepts of the 200-120 CCNA Routing and Switching Exam

White Paper | May 29, 2014

In the spring of 2013, Cisco announced major updates to their Cisco Certified Network Associate (CCNA) curricula, including a new version of the CCNA Routing and Switching exam (200-120 CCNA). This paper provides a review of the CCNA Routing and Switching exam's critical concepts, as an aid to students preparing to pass the latest version of the CCNA Routing and Switching exam.

Amazon Web Services: An Overview

Webinar – Recorded | March 28, 2014

Amazon Web Services: An OverviewThere's a really good chance that Amazon Web Services (AWS) has more than a few products to help you work faster, smarter, and more cost effectively. After all, the depth and breadth of AWS is significant, comprising more than 30 services in dozens of data centers located in nine regions across the globe. They offer computing, storage, networking, deployment, management, and a host of supporting services, such as queues and email services. Getting a clear understanding of what AWS is and how it can help your business can be challenging. Never fear. In this hour-long webinar, Global Knowledge instructor and cloud and big data analyst Rich Morrow will help. He'll give an overview of AWS and its many benefits.

Introduction to Amazon Auto Scaling

White Paper | March 06, 2014

AWS has introduced Auto Scaling so that you can take advantage of cloud computing without having to incur the costs of adding more personnel or building your own software. You can use Auto Scaling to scale for high availability, to meet increasing system demand, or to control costs by eliminating unneeded capacity. You can also use Auto Scaling to quickly deploy software for massive systems, using testable, scriptable processes to minimize risk and cost of deployment.

Which Exams to Take: CCNA Composite vs ICND1 and ICND2

Video | Feb. 25, 2014

Global Knowledge instructor Kevin Schweers reviews the basic differences between the two paths to achieving CCNA certification.

Tips and Tricks to Speed AWS Deployment

White Paper | Feb. 06, 2014

Amazon Web Services (AWS) offers increased agility, developer productivity, pay-as-you-go pricing and overall cost savings. But you might wonder where to start, what pitfalls exist and how can you avoid them? How can you best save time and money? Learn what you need to know and where to start before launching an AWS-hosted service.

Introduction to Amazon Relational Database Service (Amazon RDS)

White Paper | Jan. 16, 2014

Database Management Systems (DBMS) have been monolithic structures with their own dedicated hardware, storage arrays, and consoles. Amazon Web Services (AWS) realized that while each company can use unique methods of collecting and using data, the actual processes of building the management infrastructure are almost always the same. AWS remedies DBMS problems with its Amazon Relational Database Service (Amazon RDS).

Benefits of Global Knowledge's CCNA Boot Camp

Video | March 21, 2013

Diane Teare, Global Knowledge's Cisco Course Director, discusses the advantages to taking our CCNA Boot Camp.

Defining QOS (Quality of Service)

Video | March 15, 2012

Global Knowledge Course Director and Lab Topology Architect Joey DeWiele, a specialist in Unified Communications, explains QoS.

2011 IT Skills and Salary Report

Special Report | April 04, 2011

For the fourth year in a row, Global Knowledge and TechRepublic have partnered to create a comprehensive IT salary survey. With over 12,000 responses, the 2011 report has turned out to be one of this year's most relevant and revealing salary surveys in the industry. Below is our complete list of Salaries by Popular Certifications and Salaries by State.

Network Layer Utilities: End-to-End Data Delivery

Article | Aug. 22, 2009

Find out which OSI layer is concerned with reliable end-to-end delivery of data - and more. Get answers to your OSI reference model and network layer questions here.