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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.

2015 IT Skills and Salary Report

Special Report | May 06, 2015

The results are in and analysis is complete from our eighth annual IT Skills and Salary Survey. This was our third in partnership with Windows IT Pro and one of the industry's largest with more than 11,000 North American respondents. Download your copy to learn how your salary compares to your peers, whether you have the skills IT decision-makers are looking for and much more  

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).

Human Vulnerabilities in Our Current Threat Landscape

White Paper | Jan. 23, 2015

Times are changing. Attacks are becoming much more sophisticated and hackers are exploiting human vulnerabilities to gain access to enterprise networks and private information. Employees and end users want to help protect your company's sensitive data, we just need to motivate them as to why they should care. By educating your employees on security best practices and current human vulnerabilities, you can take a step forward to ensuring you're not a part of the many organizations that are breached.

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!

New Topics on the 2014 Security+ SYO-401 Exam

White Paper | Sep. 24, 2014

It has been three years since the last revision of the CompTIA Security+ exam. In early summer of 2014, the latest version SY0-401 was released. This revamped exam retains the same six domains as established in SY0-301, which emphasize security in three main areas: application, data, and host. New topics add attention and focus on cloud computing and mobile devices, while greater emphasis has been added to incident response and physical security. In your efforts to prepare for SY0-401, it would be a good idea to pay special attention to the new topics and issues added for this latest revision.

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.

Common Networking Standards and Why They Are Relevant

Webinar – Recorded | July 29, 2014

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.

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.