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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
What is optic fiber laying ship?
Fiber optic cables are laid across the ocean by massive ships specially designed for the task. The are operate by crews 24/7.
They cannot communicate.
Is it legal to take IP address from another?
This question is very vague. I'll try to answer it in a variety of ways. If you tried to take another computer's IP address you would have a conflict and both machines would not be able to access the internet. If you are trying to acess any netowrk without the network provider's consent then that would be considered illegal. Companies would have policies that would not allow you to perform any network configuration and if you violate that policy you are subject to their punishment.
When running NAT what is the purpose of address overloading?
When running NAT the purpose of address overloading is to map a number of private IP addresses to one public IP address.
A simple duplex is a channel through which data is transmitted and it can either be half or full duplex. Half duplex means that data can be sent or received but not at the same time while full duplex means that this can happen simultaneously.
Why would you use UDP but not Tcp in real time application?
UDP is alot faster than TCP. So if its realtime obviously it has to be fast, thus UDP. The only problem is UDP isn't as reliable or as secure as TCP. But it does have the speed advantage.
What operation system has TCP IP built into it?
TCP/IP is not a specific program, but a specification. It has been implemented in different operating systems, like Windows, Linux, Cisco IOS, and others.
TCP/IP is not a specific program, but a specification. It has been implemented in different operating systems, like Windows, Linux, Cisco IOS, and others.
TCP/IP is not a specific program, but a specification. It has been implemented in different operating systems, like Windows, Linux, Cisco IOS, and others.
TCP/IP is not a specific program, but a specification. It has been implemented in different operating systems, like Windows, Linux, Cisco IOS, and others.
What are the top and bottom osi model layers called?
application -top of osi model
physical- bottom of osi model
What is difference between circuit switching and message switching?
1.circuit switching statically reserves the required bandwidth in advance whereas packet switching acquires & releases it as it is needed.
2.With circuit switching any unsed bandwidth on a allocated circuit is just waisted.with packet switching it may be utilised by other packets .
3.Circuit switching needs to set up an end to end path before any data can be sent.
4.When packet switching is used it is straight forward for router to provide speed and code conversion.
5.In packet switching packet may be delivered in the wrong order.
6Packet carriers usually base theier charge on both the no. of bytes(or packets carried and connect time.
7.with circuit switching, the charge is based on the distance and time only, not the traffic.
How do you connect wires using a heat shrink connector?
A heat shrink connector is a small tube of translucent plastic shrink wrap with a small collar of solder in the middle. That's what I think the question is about. What you do is butt joint the wires together then use a soldering iron to melt the small collar of solder,this is what attatches the wires together in a more permenant bond than shrinkwrap alone. Then use a heat gun or other flame (carefully) to shrink the wrap around the wires and insulation.
A proper heat shrink gun can melt solder inside the shrink without damaging it. 3M makes one. Tyco Electronics also makes one. Check out DigiKey and enter part # CWT9001-ND
They are used in aircraft regularly.
For the record, heat shrink is not plastic (I suppose it could be, but I've never seen it in 'plastic') for the most part it is polyolefin and comes in several types, shrink ratio of 2:1, 3:1, 4:1, 6:1.
What is the difference between stp cat6 and sftp cat6?
"S" stands for shielding, usually with a wire mesh. When you strip an stp cable you'll see four twisted pairs, surrounded by a "sleeve" of thin wire mesh.
"F" stands also for shielding, but using a metal foil. The foil (a thin metal film) in form of a tape is wrapped around the 4 pairs in a spring fashion (like a leather wrap on a tennis racket handle for example). Usually an ftp cable has an added bare (uninsulated) wire touching the foil, which facilitates easier electrical connection in plugs, outlets etc.
If the cable is marked SFTP, it means that it has both types of shielding, for added protection against interference.
Source port numbers
Does an IP address usually consists of three groups of letters each separated by a comma?
No, it is separated by a dots.
How do you punch Network cable in patch panel and color code both side?
This depends on the cable or direct satellite company you are using to access cable on your television. In most cases, you can hold both the side and the front. From there, hold the remote.
Define what is centralized processing with distributed processing?
DISTRIBUTED PROCESSING: refers to LANDs designed so that a single program can run simultaneously at different sites.
PARALLEL PROCESSING: is the simultaneous use of more than one CPU to execute a program. It allows programs to run faster because there are more engines (CPUs) running it.
CENTRALISED PROCESSING: is performed in one computer or in a cluster of coupled computers in a single location. All data processing is performed in the central computer.
Yes, most computer networks consist of many computers that are usually connected by a networking device such as a hub, switch or access point. This type of a network is called a LAN.
What if there are no mac addresses and all adapters use ip addresses?
Ethernet devices are identified by their MAC address, not an IP address. If their were no MAC address incorporated into the device then it is not following the rules define for the ethernet protocol. It would not be an ethernet network adapter or it would be a defective ethernet network adapter.
As the LANs are designed for arbitrary network layer protocols, not just IP, so if the adapters are assigned with IP addresses rather than MAC addresses, than it will be difficult for adapters to support other network layers. Even if the adapters use entire network layer addressing schemes, they will need to be reconfigured every time they are powered up. So it is imperative to use neutral MAC address independent of network layer addressing schemes in order to ensure better performance of network.
