Pearson IT Certification :: Articles > Ciscohttp://qbryg.nstrefa.pl/?team=articles/index_rss.aspx?n=4ac0a2ea-4cf3-4396-b9f7-322e6070b2e8The latest articles from Pearson IT Certificationen-usCopyright 2019 Pearson Education, Inc. InformIT Division.Article :: Designing and Deploying Cisco Unified IM and Presencehttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2471644This chapter describes the Cisco Unified Communications IM and Presence (IM&P) architecture and design. Thu, 25 Feb 2016 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2471644Article :: Cisco Video Surveillancehttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2467134This chapter from <a href="http://qbryg.nstrefa.pl/?team=store/ccna-collaboration-civnd-210-065-official-cert-guide-9781587144424?w_ptgrevartcl=Cisco+Video+Surveillance_2467134">CCNA Collaboration CIVND 210-065 Official Cert Guide</a> offers a high-level overview of the solution Cisco offers in IP surveillance. The first section reviews legacy closed-circuit TV (CCTV) video-surveillance architecture and how it has evolved into what is available today. The subsequent sections cover Cisco’s physical security offering, the components involved with their solution, and the architectural design of how all the different elements work together.Mon, 25 Jan 2016 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2467134Article :: WAN Technologies: Important Points of Interest, Part 3 of 3http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2459347Concluding this three-part series on WAN technologies, Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789752963">CCNA Routing and Switching 200-120 Network Simulator, Academic Edition</a>, discusses how satellite, wireless data, and leased lines are used as part of a networking solution.Wed, 13 Jan 2016 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2459347Article :: WAN Technologies: Important Points of Interest, Part 2 of 3http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2459346In Part 2 of a three-part series, Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789752963">CCNA Routing and Switching 200-120 Network Simulator, Academic Edition</a>, reviews popular low-end and mid-grade offerings for Internet access: dial-up, ISDN, DSL, and cable.Wed, 06 Jan 2016 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2459346Article :: WAN Technologies: Important Points of Interest, Part 1 of 3http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2459345In the first article of a three-part series, Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789752963">CCNA Routing and Switching 200-120 Network Simulator, Academic Edition</a>, provides an overview of some of the wide area networking (WAN) technologies that network engineers need to know to get that first job in the industry, or to move up in their chosen field.Tue, 29 Dec 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2459345Article :: TACACS+ vs. RADIUS: Similarities and Differenceshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2449614If you're responsible for the security of your organization's network, it's important to examine all the possibilities. Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, examines these two long-time AAA favorites, discussing how they protect your network's vital resources.Tue, 08 Dec 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2449614Article :: Network Address Translation (NAT) Implementation Methodshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2447202Have you ever adjusted to a new area code or ZIP code? Everyone needs unique phone numbers and addresses, which is a struggle for the phone companies and the post office. The Internet has the same growing pains on a planetary scale, with everyone's Net-connected devices needing unique IP addresses. Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, explains how Network Address Translation makes it possible for all of us and our gadgets to communicate.Tue, 01 Dec 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2447202Article :: Inner Workings of the Domain Name System (DNS)http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2446655When you type an address into a browser and hit Enter, you expect to arrive at the intended website. Without the Domain Name System (DNS), that wouldn't happen. Whether simple or very complex, networks worldwide rely on the DNS to connect client and target. Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, explains how DNS connects one person or server with another, and why you need to know about this undervalued service.Tue, 24 Nov 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2446655Article :: CCDE Study Guide: Enterprise Campus Architecture Designhttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2448489In this chapter from <a href="http://qbryg.nstrefa.pl/?team=store/ccde-study-guide-9781587144615?w_ptgrevartcl=Enterprise+Campus+Architecture+Design_2448489">CCDE Study Guide</a>, Marwan Al-shawi discusses issues related to enterprise campus architecture design, including hierarchical design models, modularity, access-distribution design model, layer 3 routing design considerations, EIGRP versus link state as a campus IGP, and enterprise campus network virtualization. Mon, 23 Nov 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2448489Article :: Five (or Six) Things That Will Make You a DHCP Wizardhttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2438944You're probably using the Dynamic Host Configuration Protocol (DHCP) right now, as you read this article. Surprised? Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, explains what you need to know about the use of DHCP in modern communications.Tue, 17 Nov 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2438944Article :: Network Routing Protocols and Methods, Part 2http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2435848In the conclusion of this series, Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, explains how to untangle the detailed network information provided by two popular network routing protocols.Tue, 10 Nov 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2435848Article :: CCNA Collaboration CICD 210-060 Official Cert Guide: Managing Endpoints and End Users in CUCMhttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2446208This chapter from <a href="http://qbryg.nstrefa.pl/?team=store/ccna-collaboration-cicd-210-060-official-cert-guide-9781587144431?w_ptgrevartcl=Managing+Endpoints+and+End+Users+in+CUCM_2446208">CCNA Collaboration CICD 210-060 Official Cert Guide</a> reviews the configuration of endpoints and users in Cisco Unified Communications Manager (CUCM), including setting up basic network services, registering phones, configuration, and bulk administration.Mon, 09 Nov 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2446208Article :: Network Routing Protocols and Methods, Part 1http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2435847In this two-part series, Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, discusses current network routing protocols and methods for implementing them. This article covers the types of static versus dynamic routing protocols and the differences between them.Tue, 03 Nov 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2435847Article :: Common Protocols for Virtual Private Networks (VPNs)http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2437086Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, discusses some of the protocols used on modern virtual private networks.Thu, 22 Oct 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2437086Article :: Routers and Switches and Hubs, Oh My! An Introduction to Network Devices and Their Functionshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2434666Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, discusses some of the most common network devices that network engineers need to know and understand.Mon, 12 Oct 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2434666Article :: Basic Layer 3 Routing Conceptshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2434069How does a message get from point A to point B on a network? Though the question may seem simple, the process isn't. Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, discusses how basic packet routing works.Tue, 06 Oct 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2434069Article :: Mitigation Technologies for E-mail-Based and Web-Based Threatshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2358301This chapter from <a href="http://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2358301">CCNA Security 210-260 Official Cert Guide</a> covers the Cisco E-mail Security Appliances (ESA) and the Cisco Web Security Appliance (WSA) technologies and solutions in detail. You will learn mitigation technologies such as spam and antimalware filtering, data loss prevention (DLP), blacklisting, e-mail encryption, and web application filtering.Tue, 29 Sep 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2358301Article :: VLAN Configuration Fundamentals and Commandshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2350406After becoming familiar with basic VLAN concepts, you need to learn how to configure your organization's networks and devices. Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=http://www.informit.com/store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, discusses important concepts and commands you will use in setting up networks and getting devices to talk to each other.Mon, 15 Jun 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2350406Article :: Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: Campus Network Architecturehttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2348266This chapter from <a href="http://qbryg.nstrefa.pl/?team=store/implementing-cisco-ip-switched-networks-switch-foundation-9781587206641?w_ptgrevartcl=Implementing+Cisco+IP+Switched+Networks+(SWITCH)+Foundation+Learning+Guide%3a+Campus+Network+Architecture_2348266">Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: (CCNP SWITCH 300-115)</a> covers implementing VLANs and trunks in campus switched architecture, understanding the concept of VTP and its limitation and configurations, and implementing and configuring EtherChannel. Thu, 04 Jun 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2348266Article :: Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: Network Design Fundamentalshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2348265This chapter from <a href="http://qbryg.nstrefa.pl/?team=store/implementing-cisco-ip-switched-networks-switch-foundation-9781587206641?w_ptgrevartcl=Network+Design+Fundamentals_2348265">Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: (CCNP SWITCH 300-115)</a> begins the journey of exploring campus network design fundamentals by focusing on a few core concepts around network design and structure and a few details about the architecture of Cisco switches.Mon, 01 Jun 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2348265Article :: Virtual vs. Physical LANs: Device Functionalitieshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2343470If you have a good grasp of the basics of local access networks (LANs), it's time to step up your game. Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=http://www.informit.com/store/ccna-routing-and-switching-icnd2-200-101-official-cert-9781587144370">CCNA Routing and Switching ICND2 200-101 Official Cert Guide</a>, explores the concepts behind virtual LANs, how they differ from physical LANs, and why VLANs make sense for modern organizations.Fri, 29 May 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2343470Article :: Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: Fundamentals Reviewhttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2348264This chapter from <a href="http://qbryg.nstrefa.pl/?team=store/implementing-cisco-ip-switched-networks-switch-foundation-9781587206641?w_ptgrevartcl=Implementing+Cisco+IP+Switched+Networks+(SWITCH)+Foundation+Learning+Guide%3a+Fundamentals+Review_2348264">Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: (CCNP SWITCH 300-115)</a> covers the following basic switching topics as a review to CCNA: hubs and switches, bridges and switches, switches of today, broadcast domains, MAC addresses, the basic Ethernet frame format, basic switching function, VLANs, the Spanning Tree Protocol, trunking, port channels, and multilayer switching (MLS). Wed, 27 May 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2348264Article :: Basic Data Transmission in Networks: MAC Tables and ARP Tableshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2339639Bombarded with jargon, no wonder networking beginners get lost. Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=http://www.informit.com/store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, explains some crucial terminology for anyone who needs to understand complex networking.Tue, 12 May 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2339639Article :: Collision Domains and Broadcast Domains = Apples and Orangeshttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2324461Sean Wilkins, co-author of <a href="http://qbryg.nstrefa.pl/?team=http://www.informit.com/store/ccna-routing-and-switching-200-120-network-simulator-9780789750884">CCNA Routing and Switching 200-120 Network Simulator</a>, doesn't approve of blurring collision domains and broadcast domains. Though these models are often taught together, modern technology has outpaced some of the ideas, and networking specialists who are new to the field need to distinguish between current terminology and outdated concepts.Tue, 05 May 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2324461Article :: OSPF Implementationhttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2294214This chapter from <a href="http://qbryg.nstrefa.pl/?team=http://www.informit.com/store/implementing-cisco-ip-routing-route-foundation-learning-9781587204562?w_ptgrevartcl=OSPF+Implementation_2294214">Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide: (CCNP ROUTE 300-101)</a> examines the Open Shortest Path First (OSPF) Protocol, one of the most commonly used interior gateway protocols in IP networking.Tue, 03 Feb 2015 00:00:00 GMThttp://qbryg.nstrefa.pl/?team=articles/article.aspx?p=2294214