Expert Knowledgebase
Emerging Wireless Technologies (including VoIP) with Carrie Higbie
What is a good definition of a Network Appliance?
(21 JUN 2004)
What is a good definition of a Network Appliance? Is Plug N Play a pre-requisite to be an appliance?
Is there even a slightest possibility of classifying VoIP as a basic service?
(21 JUN 2004)
Is there even a slightest possibility of classifying VoIP as a basic service? Does the mere possibility of VoIP being in real time for a fraction of a second warrant it being defined as a basic service?
Could you give some guidelines about emerging technologies wireless and Internet distributed computing?
(21 JUN 2004)
I'm about to start a research project in computer networking specifically in wireless networking or in Internet distributed computing. Could you give some guidelines about emerging technologies in these areas o...
What is an enterprise network?
(21 JUN 2004)
What is an enterprise network? Can you please refer to some relevant links if possible?
How does Differentiated Service Code Point (DSCP) in IPv6 contribute to Quality of Service in IP networks?
(21 JUN 2004)
Can you enlighten me about type of service in IPv4 and Differentiated Service Code Point (DSCP) in IPv6 as to what extend they contribute to Quality of Service in IP networks and how they contribute to the Diff...
What are shielded systems and how are the different from UTP systems?
(21 JUN 2004)
I am hearing a lot about shielded systems, what are they and how are they different than UTP systems. What is the difference between Class E and Class F?
Are all four pairs of wires used in a 100BaseT CAT5 environment?
(21 JUN 2004)
Are all four pairs of wires used in a 100BaseT CAT5 environment? In other words -- can you use only two pairs to get the full 100BaseT advantage?
Which wires need to be "crossed" in order to make a crossover cable?
(21 JUN 2004)
Which wires need to be "crossed" in order to make a crossover cable?
Are there lightning protection blocks for data circuits?
(21 JUN 2004)
We need to connect several buildings that are within a couple of hundred feet max. We could save money by purchasing one 24-port switch and providing service from the first building, however we need to include...
How do I connect DB 9 and RJ 45 sockets?
(21 JUN 2004)
How do I connect DB 9 and RJ 45 sockets? I want to use both connectors at ends of my CAT5 cable
Why don't we use all the whole octec to identify an IP address?
(21 JUN 2004)
Why don't we use all the whole octec to identify an IP address? For example, why does an A-class-IP address, begin with
10000000 and not 11111111? Thus, can we have more IP addresses?
Is it possible to run an ATA186 behind a SpeedTouch 510 ADSL Gateway?
(21 JUN 2004)
Is it possible to run an ATA186 behind a SpeedTouch 510 ADSL Gateway?
Why isn't a single fiber optic line transmitting billions of bits per seconds sufficient anymore?
(21 JUN 2004)
Why isn't a single fiber optic line transmitting billions of bits per seconds sufficient anymore?
What can you tell me about some low cost products like Linksys, D-link, Planet, etc?
(21 JUN 2004)
I know when it comes to switches nothing is better then Cisco but the price tag is way beyond our budget. What can you tell me about some low cost products like Linksys, D-link, Planet, etc? Which of these prod...
Can you tell me how to differentiate between quality of cables?
(21 JUN 2004)
Can you tell me how to differentiate between quality of cables?
I'm currently working on a project where we will try to provide 100/1000 Mbps on our backbone cable and UTP 100 Mbps to our end user. The cables...
What are some differences in network cards, aside from the cost?
(21 JUN 2004)
What are some differences in network cards, aside from the cost?
VoIP references and certifications
(21 JUN 2004)
Could you offer me some good references and certifications on VoIP?
We just upgraded our cable to CAT5. I am looking to work with D Link unmanaged switches. Are these as good as any other switches?
(21 JUN 2004)
I have a network backbone of 10/100 switches and a router / firewall that is 10/100. An Apple consultant told us we needed to upgrade our network. I pulled and replaced the cat 3 patch cables with 5 E and excha...
Could you explain how calling cards are implemented?
(21 JUN 2004)
Could you explain how calling cards are implemented? What is the architecture -- should they use Cisco VoIP or any other technology. Can you send me any information?
Is it possible to send two different Internet connections through the same media converter and same fiber optic cable?
(21 JUN 2004)
Is it possible to send two different Internet connections through the same media converter and same fiber optic cable?
Which is better if you have to choose -- DSL or cable?
(21 JUN 2004)
Which is better if you have to choose -- DSL or cable?
Could you compare SONET versus Frame Relay with ATM networks.
(21 JUN 2004)
Could you compare SONET versus Frame Relay with ATM networks.
Ethernet throughput
(21 JUN 2004)
I have question about Ethernet. I manage a Network for a development company and we have one subnet with roughly 115 PC's and Servers. What would be the actual throughput one should be getting within a internal...
Could you provide me with details on coaxial cable, fiber optic cable and twisted pair cable?
(21 JUN 2004)
Could you provide me with details on coaxial cable, fiber optic cable and twisted pair cable? I'm looking for information on transmission rates, price, usable length, ease of installation, security and resistan...
Is it possible to access a computer residing in an ADSL network?
(21 JUN 2004)
Is it possible to access a computer residing in an ADSL network? That's because such a network has an ADSL router hiding the LAN computers IPs. Then it is not possible even to ping a computer residing in an ADS...
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