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Local Area Network
Questions concerning the setting up, troubleshooting and operation of wired LANs used by businesses and other organizations
4,003 Questions
NAT - Usually you get one ip address per internet connection. Somewhere like a school, with 30 computers isn't going to buy 30 separate connections. So they use NAT. All the computer's have their own private ips and make use of the one external ip.
Subnetting - I wouldn't worry about this too much at the moment, not until you learn a bit more of the basics.
Ip addressing - This is just like a house address, except its a computer address. If you started a download... its sent to your ip address.
Pinging - this is just a simple tool, designed to tell you if you can reach a particular destination. Invaluable when troubleshooting network issues.
routers - Most home users just use routers for the wirless capabilities.... In advanced networks you can do alot more with them.
Default gateway - For alot of people, their router is their default gateway. Its pretty much where you send a packet to so that it can reach the internet.
AnswerNATing, subnetting, IP addressing, etc, those aren't included in the basics. Maybe someone else will explain this stuff, but I don't feel like typing a few hundred pages in this little text box. Pinging is simply a way to find out if another computer on the network is turned on and correctly connected to the network when you know the IP address of the other computer. You might find this site useful: http://computer.howstuffworks.comPing uses which internet layer protocol?
Ping uses ICMP, and therefore resides at layer 3 (Network layer)
100-meter
What is the differce between subnet and wide area network?
Subnets are designed for local area networks (LANS) that are used in an organization or building.
Wide area networks cover larger areas and don't use subnets.
What is the advantage of using a layer 3 switches in the core of a campus network?
The advantage of using a layer 3 switch is the speed at which it can establish a network connection.
That would be a WAP - Wireless Access Point, which operates as a bridge between the two network types.
Does an 8 pair Cat 5 or Cat 6 cable exist?
CAT5 and CAT6 are typically installed as four-pair; it's difficult to find cable containing more than the typical four-pair (8P8C) connections.
Previously, someone wrote that "CAT5 and CAT6 are defined as four pair." The reality is a bit more subtle -- there are separate performance (X amount of crosstalk/loss at a frequency of Y MHz) and cabling specs (Q pins, with pairs ordered as 1-2, 3-6, 4-5, 7-8, cable colors pink, green, blue with polka dots, etc.).
I have found 25 pair CAT5 cable. Cables on Demand, for example, carries this under part number MP-5T90FFUNNA. It terminates in giant RJ-21 connectors on each end. They also make breakout cables to connect to standard RJ-45 ports.
Expect to pay through the nose for this, though. It looks like it runs 85 cents/foot in 100 foot lengths, vs. 5-6 cents/foot for standard CAT5 in 1000 foot spools.
How do you find the name on a router?
You have log on in your router, go in settings, and locate a field with SSID or Name (different router have different names for this option).
Can a supercomputer simply be a massive collection of networked computers?
No - a supercomputer is a single device or system (although fast and expensive). A massive collection of networked computers can give the results of a supercomputer but they would not be considered one.
Which protocol routes between different autonomous systems?
The protocols used to distribute routing information between AS's are known as Exterior Gateway Protocols (EGP's).
Can both client and servers use the same protocol port on the same computer at the same time?
Yes - this is frequently the case with web servers, which service requests on port 80 from multiple locations simultaneously.
Depends upon what kind of equipment you are connecting? Data Transfer speeds required, distance between the connections, environment (Electra magnetic interference, inside, outside, underground).
What is monitoring networked devices?
Network Monitoring describes the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator in case of outages via email, pager or other alarms. It is a subset of the functions involved in network management.
Most of the time it is 1234 or 12345. Check the handboo or call the manufactor if this fails.
Answer: It's a model, not a protocol. The OSI model is a governing model of standards in which protocols are derived or fit into in the case of legacy models. The OSI model was developed by ISO(International Standards Organization). The OSI model encapsulates many popular legacy and current protocols including TCP/IP, IPX/SPX, and NetBIOs derivatives, including Microsoft's NetBEUI. The OSI model also includes specifications that allows communications engineers whos specialties are on different layers of the OSI model to communicate and accelerate delivery of better communications to the end user. So from DSL, modem, satellite to your web browser, the OSI model applies. e
You want only computer hardware knowdge?
Hardware for a wireless network..you need a router and a PC and some wiring. that's it
If hub is replaced with switch is there any changes in collision domain?
In most modern-day network switches, collision is no longer a problem. Network switches are good at handling these situations to avoid collision problems.
What do you mean by line configuration in computer networking?
Can anyone explain what do mean by configuring files in .htaccess?
TCP/IP is composed of layers, wherein each layer is responsible for performing certain operations on the data it receives and passing it to the higher layers. Each layer deals with certain issues related to the transmission of data and renders certain services to its higher layers.
Give an example of 2 private address in class A range?
Any address in the 10.0.0.0 - 10.255.255.255 range is considered a private (reserved) IP address in the class A address space.
What is Project 1-1 network plus guide to networks?
Not enough information to answer; you need to indicate the title and author of the book in question.
What is the transfer rate for a local area Network?
Transfer rates on a LAN may vary from 10 Mbps to 1 Gbps. 10 Gbps networks are on the way.
