Ask the Experts
Ask the Experts
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Could you help me with my firewall requirement analysis?
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I have 30 years in the telecom industry and I am looking to get certified for VoIP. What would you s
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Can I connect my PC to my cable modem wirelessly without using a router and just an access point?
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What security issues will impede an organization from implementing a wireless LANs environment?
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We're trying to find the actual source and destination telephone numbers once a VOIP packet is detec
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How can we develop a product which allows a call coming into a voice modem connect to someone on the
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Will this qualify me for the experience portion of the CISSP certification?
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Is there a tool that will scan our switches to tell what port on what switch a workstation is plugge
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Error message - invalid domain name
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How does a multiprotocol router work when it comes to communicating between two different networks -
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Configuring a distributed time-based ACL
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Is it necessary to do MCSE before CCNA or one can directly do CCNA?
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Wireless data transfer rate
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What does one consider to be good wireless network performance?
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Why would a wireless access point have two antennas?
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Is this true that VPN with MPLS requires a dedicated lease line?
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What is the difference between IP telephony and voice over IP (VoIP)?
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What does "watch conversation" mean when using e-mail?
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What is the difference between active hub and passive hub?
A hub can be classified as active, passive or smart; understand the differences to help you decide what you need in your network. Continue Reading
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I was wondering if you could shed some light on the advantages of implementing Ethernet?
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Sharing broadband DSL Internet via dialup for remote computers
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What is FastPing and what is it used for?
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Could I see a config example of two broadband routers in a PPPOE IPsec LAN to LAN and tunneling over
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I have seven (7) routers connected in a lab via the serial interface (DCE and DTE) on each. My serv
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Do we have standards for switches?
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How do I recover my a ROM password on a Cisco 805 router?
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I am experiencing unexplained bandwidth utilization, and constant timeouts. How do I begin troubles
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Could you please tell me a few of the differences between IPv4 and IPv6?
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After tracing one particular function I found 23 separate TCP sessions with one request in each. Is
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Clarification on minimum cable length for Cat5
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Is there any way that I can block MAC addresses using DHCP server or other third part software?
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What methods can I use to protect our network from broadcast and multicast storms?
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I'm having issue with installing a router/WAP behind another router (which goes to my ISP). Can you
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Is it possible to configure a Web server with VPN where only a selected few folders will be through
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What does the twist in the Cat5 cable do?
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What is a smart hub as opposed to one that is not (dumb hub)?
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How feasible is it to implement ATM in a low traffic area (rural area)?
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Is it possible to connect a switch to a hub with a distance of 100 meters or more?
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I need to find a CCNA self study guide. What would you suggest?
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I have MCSE, CCNA WAN, CCNP WAN, and my CCNA. I'd like to pursue a security certificaiton. What wo
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I want to get into the Network Security field. What is the first cert I need to obtain?
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Can I create a network with two computers using a regular modem?
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Is there a big difference between the CCNA 640-607 exam and the 801?
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What are the advantages and disadvantages of using VoIP technology over circuit switch?
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Which is better - a firewall appliance or a dedicated machine running firewall software?
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Can I use this D-Link Wireless Broadband router as a hub to connect my PC's in workgroup?
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TKIP encryption
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What is the best solution for access control on a wireless network?
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Can a 802.11g client be connected to 802.11a Access Point?
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How can we create the best possible IT strategic plan?
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I have a Trojan called blazer 5 listening to port 5000! Is there anyway I can track down this Troja
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What are some examples of Web filtering software products out there?
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Why is "Access denied" when I try to configure trust relationships between two domain servers?
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How does the sender of a data packet know the IP address of the receiver? Part 2
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What is open and close protocol? What is the difference?
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How does the sender of a data packet know the IP address of the receiver? Part 1
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How does a softswitch connect to traditional phones (PSTN)?
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How does a headend work?
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What command can I use on a Windows 95 machine to force it to release IP addresses?
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I need to connect a printer through the print server to a serial port on a Digiboard in order to ena
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What factors influence the choice of category 5 UTP cable and 100BaseT architecture for the office?
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How many different kinds of LAN cards are there?
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Does using multiple switches (ordinary and non-configurable) in a LAN affect the performance of the
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What is the difference between Checkpoint and pix firewall?
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How do I obtain security clearance?
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Which transmission media are the most secure? Least secure?
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Which is better - VOIP or DECT static and wireless?
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Addressing VoIP latency and reliability
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What are the main advantages of ATM technology, and how does EoATM work?
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How can I enable debug mode on a Cisco 2600 series router?
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How can I share my cable modem Internet connection through my wireless router?
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It takes a long time (3-5 minutes) for my computer to recognize the wireless connection (or router).
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I'm constantly losing my wireless network connection - what can I do?
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Am I experiencing a security breach when I access a HTTPS site and can still view my personal inform
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What are VLANs and when would someone use one?
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How efficient is DSL vs. dialup?
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What is the difference between flow control and congestion control?
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What does it mean to 'split your network?'
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Sometimes I get a message, 'port already open." What does it mean?
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What is the difference between SSL and TLS?
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Security policy considerations
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Is the solicited node multicast address tied to the MAC address?
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Is there job potential with just CCNA or do I need more certs?
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What certification would you recommend for mainframe security experts?
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What causes unexpected termination of Remote Procedure Call (RPC)?
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How do I delete an old user account on a Cisco 1700 series router?
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Is there a way to automate shut/no shut on my Cisco 1760 router?
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Debugging wireless network connectivity issue
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I would like to know how to setup a small WAN for 15 students in a classroom environment.
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Sharing a single Internet connection from multiple satellite offices
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Is there a tool that I can use from my local computer to query our DHCP server?
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Attenuation of cables
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What are the benefits and drawbacks of Logical Network Design?
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Why does the OSI model have 7 layers - no more no less?
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I have only one port for Internet access in the wall, but I have four computers. What should I use a
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What is required to implement SSL with encryption for TN3270 session on CS for OS/390 V2R10?
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What are the pros and cons of using prior statistics to make management decisions for future plannin
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Microwave transmissions
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What are the benefits of using a VoIP wireless over DECT wireless systems?
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Whenever I copy a file from one computer to another, I get an error "Network Busy," and the source