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Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
What is the max distance for a coax Ethernet access?
It depends on the type/speed.
For 100 mbit/s twisted-pair (CAT5/6), it's 100 metres, for 1000 mbit/s - 1 gBit/s it's also 100 m *with the correct cable* and no sneaky tight bends/ overdone cable ties.
The older coaxial cables gave 185 m, 500 m, but these are obsolete.
The longest total length for ethernet is 100m, or just a bit over 300 feet. That is for pure cable lengths between any device that would regenerate the signal, such as a switch or hub. The problem is if the signal is to degradded by the time it reaches the device it can't be regenerated properly.
How do you know the ip address of other computer in the internet?
They do no know where there computers are in physical locations. However DHCP servers auto assign ip address witch can be found to open ports to that computer. They also use MAC addresses witch each network card that has there own mac address.
Uses of computer networks how do they work in office?
Say a school for instance goes out and buys 20 brand new computers. Their hardly going to buy 20 printers, one for each computer now are they...?? They one printer and network all the computers to use one printer.
Better security. Its easier to keep employees away from undesirable sites, restrict what they can and cant do, watch what they do etc....
Share an internet connection... no point in buying a connection for every computer.
File sharing... if the boss wants the secretary to get a file, but is the lazy sort who doesn't want to have to physically get up off his chair and walk into the next room to give it to her. He can just just set-up file sharing, then call her from his desk and tell her theres a new file in the shared folder.
A router is a networking device that helps relay traffic from one network to another, and vice versa.
For example, a typical broadband Internet connection router relays traffic from the private network within the home to the public (Internet) network outside. Rules dictate which portion of the traffic on either side passes through the router. For example, networking messages exchanged between a PC and a networked printer within the home will not pass the router and will thus not be "seen" on the public network, but a query to a public website, and its response, will.
Other commonly used routers include the WiFi routers, which relay traffic between a wired network and a wireless network.
Less common routers also handle different media, similar to a WiFi router. Examples include routers that relay traffic from a network using dedicated network cables to one that uses the power grid, and many others.
What port number does the TFTP server use to accept request from client?
By default a TFTP server will accept connection requests on UDP port 69.
Yes, it is an address in one of the private IP address ranges that have been defined and reserved.
The private IP address ranges are set as:
10.0.0.0 through 10.255.255.255
172.16.0.0 through 172.31.255.255
192.168.0.0 through 192.168.255.255
Any address in these ranges can be set up and used by homes, offices, and anyone else and the communication will not be routed to the Internet because they are defined as unroutable. They also will not cause any IP address conflicts on the Internet since nothing Internet-accessible exists in those address ranges.
If you have any other questions about IP addressing, feel free to drop me a line.
packet switching
What kind of network uses SC connectors?
Fiber Optic connectors are normally either SC or ST SC is the accepted standard.
(Network+ Guide to Networking answer)
A fiber-optic connection between a server and router
That's a network.
Where to purchase a modem wireless router?
There are many companies that you can order a wireless broadband modem from. You can order from Rogers, Bell, Cogeco, Best Buy, Future Shop, Cisco, Dell and even Net Gear.
**Switch-6J#
What does a server cluster do?
A server cluster is a group of independent servers running Windows and working together as a single system, to ensure high availability of services for clients.
What do switches do in the home network?
You can use a switch to connect different pieces of equipment. For example, a standard ADSL router only has a port for a single Ethernet cable. If you want to connect 2 or more computers to the Internet, you can use a switch. In this case, the ADSL router and each computer connect to the switch, via a standard Ethernet cable.
If you don't have an Internet connection, you can still set up a home network to share files, etc. To connect only 2 computers, you can connect them directly via a crossover cable. To connect more than 2 computers, better use a switch.
You can use a switch to connect different pieces of equipment. For example, a standard ADSL router only has a port for a single Ethernet cable. If you want to connect 2 or more computers to the Internet, you can use a switch. In this case, the ADSL router and each computer connect to the switch, via a standard Ethernet cable.
If you don't have an Internet connection, you can still set up a home network to share files, etc. To connect only 2 computers, you can connect them directly via a crossover cable. To connect more than 2 computers, better use a switch.
You can use a switch to connect different pieces of equipment. For example, a standard ADSL router only has a port for a single Ethernet cable. If you want to connect 2 or more computers to the Internet, you can use a switch. In this case, the ADSL router and each computer connect to the switch, via a standard Ethernet cable.
If you don't have an Internet connection, you can still set up a home network to share files, etc. To connect only 2 computers, you can connect them directly via a crossover cable. To connect more than 2 computers, better use a switch.
You can use a switch to connect different pieces of equipment. For example, a standard ADSL router only has a port for a single Ethernet cable. If you want to connect 2 or more computers to the Internet, you can use a switch. In this case, the ADSL router and each computer connect to the switch, via a standard Ethernet cable.
If you don't have an Internet connection, you can still set up a home network to share files, etc. To connect only 2 computers, you can connect them directly via a crossover cable. To connect more than 2 computers, better use a switch.
What is the correct flow of routines for a router startup?
• load bootstrap, load IOS, apply configuration
source :
http://learn-ccna.net/907-which-of-the-following-is-the-correct-flow-of-routines-for-a-router-startup-907-20091511.html
Can i hook up wireless printer through wireless modem?
http://www.kelsoconsultinggroup.com/wireless_network.asp
this should help
yes you can i have one hooked up that way
How do you I find my network key?
Did you mean your network card's unique key? It called MAC address:
1. Click the "Start" on the left bottom of your desktop.
2. Click Run...
3. Type cmd in the text box that appears. A command prompt window launches on the desktop.
4. In this command window, type ipconfig /all. Details are shown for each of the computer's network adapters. Computers installed with VPN software or emulation software will possess one or more virtual adapters.
5. The IP Address field states the current IP address for that network adapter.
6. The Physical Address field states the MAC address for that adapter.
Routers....
Is an ATM an input or output device?
An ATM incorporates a keypad, (optional) scanner and card reader, which are all input devices, with a display and printer, which are output devices. The cash dispenser is a mechanical device controlled by the processor which neither takes in or displays information.
input
When the internal workings of a network are unknown to the user it is commonly called?
A black box.
It would be called a white box if the internal workings were exposed/known to the user.
What is the purpose of the northbridge?
It depends on the type of CPU used. Originally, the northbridge chip served as a memory controller, AGP bus controller, and system bus. It interfaced with the CPU, the RAM, and the southbridge chip. The southbridge connected to about everything else. But most of the northbridge functions are now done by the CPU in many computers. The memory controller and sometimes even graphics are in the CPU these days.
