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  • Home
  • Ask the Experts
  • Pros and cons of integrated appliances

    Integrated appliances incorporate storage, processing and networking into one single product. But are they always a good choice?

  • Provisioning IT services with the cloud

    Using public cloud services requires diligent enterprise IT management of the cloud provider to make it a success.

  • Should you ever not use a firewall?

    There are many new network security devices on the market today. Expert Chris Partsenidis opines on whether these can replace firewalls.

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Expert Answers

  • Next generation wireless local area networks'(WLANs) important features

    What are the most important features to look for in a next generation wireless local area network (WLAN)? Lisa Phifer explains in this expert response.

  • My wireless laptop connectivity disconnected once I downgraded my OS

    Lisa Phifer shows you how to regain wireless laptop connectivity after switching operating systems (OS) in this step-by-step expert response.

  • What is NAT, and how do I know if it's taking place on my network?

    In this Q&A, our expert explains the basics of NAT (Network Address Translation), where it occurs, and what it does.

  • Will WPA2-PSK keep wireless networks safe from war drivers?

    Will WPA2-PSK keep wireless networks safe from war drivers? Find out from network security expert Michael Gregg.

  • How to train intrusion detection systems (IDS)

    Learn how to train your intrusion detection systems (IDS) from network security expert Michael Gregg.

  • What are a TV tower's effects on your network?

    How will being next to a TV station tower affect your network? Find out in this expert response.

  • Differences between Internet Connection Sharing (ICS) and bridging

    Learn the difference between Internet Connection Sharing (ICS) and bridging between two NIC cards from networking fundamentals expert Chris Partsenidis.

  • How to know if you're connecting to fake or real access points (APs)

    With a wireless LAN hotspot, how do you know if you're connecting to a fake or real access point? Find out in this expert response with Lisa Phifer.

  • How to debug poor WLAN performance

    Find out what the most important causes of poor WLAN performance are in this expert response with our wireless networking guru, Lisa Phifer.

  • Is time-to-live (TTL) thrown out in IPv6?

    Why is there time-to-live (TTL) in IPv4 but not in IPv6? Find out in this expert response.

  • Why IPv4 and IPv6 don't do fragment reassembly in routers

    Learn why IPv4 does not do fragment reassembly at the next router and why this is even more important in IPv6.

  • Where can I meet CCNA and CCNP candidates?

    Find out where you can network with other CCNA and CCNP candidates in this response from our Cisco certification expert, David Minutella.

  • Are there Cisco certifications specializing in IPv6 protocols?

    Learn about the Cisco certifications and PHD programs that specialize in IPv6 protocols, in this expert response.

  • NAC solution authentication fix for your wireless network

    Learn how to fix authentication issues when testing your NAC solutions with 802.11a/g wireless APs, in this Ask the Expert response.

  • Where is a cheap wireless access solution requiring no administration/support?

    Learn what wireless access solutions are available to provide guest and student access, for little money and almost no administration or support in this expert response.

  • How can I check connectivity and ping between sites?

    Learn how to check connectivity and ping to other sites when your modem and telecom company claim they work fine, in this expert response with our routing and switching guru, Sudhanshu Gupta.

  • Sample job interview questions to ask network administrators

    Find sample job interview questions to ask potential network administrators in this Ask the Expert with Lindi Horton.

  • How do I calculate the time taken for a file to be transferred over a WAN link?

    Calculate the time it will take for a file to transfer over a WAN link with the help of Dr. Hughes in this expert response.

  • Can users on my LAN view my computer from other machines?

    Learn how users on your LAN can view your machines from other computers in this response from network security expert Puneet Mehta.

  • What is basic difference between a router and a switch?

    What is basic difference between a router and a switch? Find out from routing and switching expert Sudhanshu Gupta.

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