Virtual private networks vpn used to provide secure

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Virtual private networks (VPN) used to provide secure access for remote workers.
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38 © 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Network Architecture Cisco Network Architecture In order for networks to function while efficiently supporting connections of people, devices, and information in a media rich converged environment, the network must be built upon a standard network architecture. Network architecture refers to the devices, connections, and products that are integrated to support the necessary technologies and applications. The foundation of all network architectures including the Internet are routers and switches.
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39 © 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Conclusion Warriors of the Net The animated video below will help you visualize networking concepts. /
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40 © 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2.1 IOS Bootcamp
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41 © 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential All electronic devices require an operating system. Windows, Mac, and Linux for PCs and laptops Apple iOS and Android for smart phones and tablets Cisco IOS for network devices (e.g., switches, routers, wireless AP, firewall, …). Cisco IOS Operating System OS Shell The OS shell is either a command-line interface (CLI) or a graphical user interface (GUI) and enables a user to interface with applications. OS Kernel The OS kernel communicates directly with the hardware and manages how hardware resources are used to meet software requirements. Hardware The physical part of a computer including underlying electronics. Cisco devices use the Cisco Internetwork Operating System (IOS) . Although used by Apple, iOS is a registered trademark of Cisco in the U.S. and other countries and is used by Apple under license.
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42 © 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Cisco IOS Purpose of OS Using a GUI enables a user to: Use a mouse to make selections and run programs Enter text and text-based commands Using a CLI on a Cisco IOS switch or router enables a network technician to: Use a keyboard to run CLI-based network programs Use a keyboard to enter text and text-based commands There are many distinct variations of Cisco IOS: IOS for switches, routers, and other Cisco networking devices IOS numbered versions for a given Cisco networking devices
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43 © 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Cisco IOS Purpose of OS (Cont.) All devices come with a default IOS and feature set. It is possible to upgrade the IOS version or feature set. An IOS can be downloaded from cisco.com. However, a Cisco Connection Online (CCO) account is required.
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  • Fall '15
  • Computer network, IP address, Cisco Confidential,  Network infrastructure