• What is 'layered architecture' in computer networks?
  • What are the characteristic of HDLC protocol?
  • VoIP requirements and benefits
  • How long is a bit?
  • What is TDMA, FDMA and CDMA?
  • What is the history of Domain Name Server (DNS) and how does it work?
  • Is it possible to determine the NIC speed of a remote workstation on my LAN?
  • I'd like to network a few computers together, but off of the main network. Is that possible?
  • Is it possible to assemble packets into a file before reaching its destination?
  • How do I control Internet bandwidth per IP on my LAN?
  • 802.5 Ethernet vs. 802.3 Token Ring
  • What layer of the OSI model does a hub operate at?
  • Can you please give some tips on working with VLSM?
  • Ethernet throughput
  • Is there a way to stop the Microsoft DHCP server from handing out an IP address to unauthorized mach
  • Is there any way to define the bandwidth for each user of local network in an ISA server?
  • Is it possible to access a computer residing in an ADSL network?
  • Could you provide me with details on coaxial cable, fiber optic cable and twisted pair cable?
  • Can you recommend some software (free or shareware) to monitor and manage the open ports on my PC?
  • Could you compare SONET versus Frame Relay with ATM networks.
  • How to configure Cisco PIX 515E to support VPN connections through Microsoft client
  • Can you point me to a few big MPLS VPN providers?
  • Can features such as VPN pass-through on routers be abused to dump traffic onto a NAT'd LAN?
  • Can you tell me what kinds of hardware are software are needed, in addition to traditional LAN equip
  • What is the best method for monitoring/reporting on a nationwide WAN without using SNMP?
  • Can you explain "route analytics"? How is this different than network management?
  • When one reads about the "edge" or the "border" of a network, what does it mean?
  • What's the best strategy for merging applications management with the management of my network?
  • I'm a recent graduate and took my first job working temporarily -- but wonder if I should actively p
  • I am trying to find out where I could get VOIP training in the Chicago area. Any ideas?
  • Working on CCNA but I'm wondering if I should instead focus on Linux certifications.
  • MCSE or MCSA in Nicaragua
  • What are some common security vulnerabilities related to Windows NT?
  • SSL VPNs
  • I've heard some SSL products such as Netilla can't run some applications. Which do you know that the
  • Can SFTP be used as a client (instead of SSH Client software) for transferring data files to a SSH2
  • Do you know where I could find out what percent of machines in corporate networks run on switched vs
  • Is it possible to send two different Internet connections through the same media converter and same
  • If I connect two 5-port switches, do I end up with the same throughput as an 8-port switch?
  • How can I generate a packet containing both broadcast MAC and IP addresses?
  • Could you explain how calling cards are implemented?
  • How do you go about creating DMZs?
  • Floating static routes
  • Is there a benchmark for the number of servers a security analyst should be supporting through manua
  • Which is better if you have to choose -- DSL or cable?
  • What is more important in the information security profession - experience, degrees or certs?
  • Is it true that if using the "A" standard that the antennas must be built right into the unit and ar
  • Pursuing a niche specialization
  • What Web sites could give me a better understanding of the CCNA exam?
  • Is there a cheap, fast and graphical program that can monitor the ports on my Baystack 450 switches
  • We just upgraded our cable to CAT5. I am looking to work with D Link unmanaged switches. Are these
  • Moving into network security -- did I make the right choice?
  • How do the clients in a WLAN communicate with the AP (Access Point) based on IP in the Network Layer
  • If I only know some information measured in a client, such as the speed of one transaction between t
  • PDA VPN options
  • Troubleshooting Nortel Contivity VPN over a wireless network
  • Using PPTP or IPsec VPN tunnels for WLAN security/gateway
  • Combining VPN and WLAN technologies
  • Do I need to configure routes when setting up WLAN via VPN?
  • Can you explain why certain wireless routers will not work with VPN connections?
  • Differing IP addresses
  • Are packets sent inside frames, or are frames inside packets?
  • Should I use a hardware or software VPN?
  • How do I enable VLAN grouping in my machine?
  • Can you give me some clarification on helper-addresses?
  • I want to configure OWA in the most secure setup using a PIX 515. What ports should be enabled?
  • I have a PIX 501 firewall. Do you have any idea what I can do to successfully use PDM?
  • Do you have any white papers or documentation on security forensics?
  • What's the main difference between managed and unmanaged switches?
  • How do secondary networks work?
  • How can I check for high network utilization on my switched network?
  • I am currently interning and working with data and voice. It's interesting. Should I get my Master's
  • I'm a LAN admin and I've become interested in Linux. What do you think the future demand for Linux p
  • Do you think the HTI+ cert would be a consideration for me? I just completed the NCCER certification
  • Are networking jobs being outsourced as much as developer jobs?
  • How would CCSP relate to network design and implementation?
  • VoIP references and certifications
  • We have both wired and wireless networks. Is there a way to set a default?
  • Do you have any data showing the benefits of a shielded system to connect wireless access points?
  • Why isn't a single fiber optic line transmitting billions of bits per seconds sufficient anymore?
  • Can you tell me how to differentiate between quality of cables?
  • What are some differences in network cards, aside from the cost?
  • What can you tell me about some low cost products like Linksys, D-link, Planet, etc?
  • How do I set up a satellite Internet hookup to share between my home and SOHO in buildings 2000 feet
  • What is EAP-FAST?
  • How do I allocate the bandwidth dynamically in ad hoc network?
  • What happens when wireless stations roam?
  • Is it possible to run an ATA186 behind a SpeedTouch 510 ADSL Gateway?
  • Can you offer me any advice in setting up a small ISP offering a wireless solution?
  • Is there such thing as an "install environment" or "system emulator" program for software evaluation
  • Restricting access between two LANs
  • How do I evaluate the performance of a LAN setup?
  • Do simultaneous uploads slow down my downloads?
  • Should I configure my computers and server to obtain IP addresses automatically?
  • I need one line to provide connectivity to a few servers, and the other to serve as a backup in case
  • We have Cisco 3660 routers spanning three networks but the first network can't FTP to the third. Wha
  • I need to label all my ports on two 16-port hubs. Is there a way to do this without kicking people o
  • What is your view on router simulator programs? Are they an effective way to prepare for Cisco certs
  • What are the top five companies that are providing enterprise level WLAN products and solutions?
  • Is it possible to restrict wireless network access within a physical boundry?
  • More