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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.
Network security is everyone's concern, and this applies to computer security as well. Many security breaches occur due to user ignorance of basic security principles, not malicious intent. Network and computer security are like an onion - there are multiple layers. Good security begins with understanding what you can do to keep your systems safe and implementing a layered approach. If you depend on one program or feature to secure your computer, then when (not if, but when) that dependency is breached, you may have personal information stolen or even have your computer taken over.
Your company has finally migrated to Windows 7. Congratulations! And now you have your first support call. This Microsoft white paper will tell you all you need to know about the new troubleshooting tools that are bundled with Windows 7 and provide you with the knowledge to quickly figure out what's happening "under the hood" on a Windows 7 computer. The selected tools described in this Microsoft white paper are a subset of the tools available on Windows 7. The focus of this white paper is on timely troubleshooting of the operating system and software applications.