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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

How do you send a text message to US from Argentina?

I am using TimeClickr (http://www.timeclickr.com) for those rare cases when I need to text someone internationally. Very simple and easy to use site, and good coverage. They are not free, but got out to be the cheapest at a time I did a research, and it is pure pay-as-you-go service - no plans or contracts, just buy a bunch of credits and use as long as you need, packages start with $1. They give few free trial credits, you can check if it works for you.

What are the latest researches in computers and IT?

IT is very revolutionary field.

Latest researches are on field of Artificial Intelligence, Microsoprocessor Designs and so on.

One of remarkable is sixth sense by Pranav Mistry

Also Oracle's remarkable research on grid technology

and Microsoft's cloud computing.

The main area of focus is To make computer easy and handy for corporates, this is the area that suits for heavy bread and butter for research fellows.

By Gaurav Mahajan, India

What are the disadvantages of a computer technician?

I think what you are asking is what are the disadvantages of becoming a technician.

Keeping up to date on technology, software and hardware, and security.

What is eco industrial networking?

Eco-industrial networking is rapidly becoming an important new approach for industries, communities, businesses to improve their competitiveness, economic viability, human & ecosystem health. It involves developing new local & regional business relationship between private sector, government & educational institution in order to use new & existing energy, material, water, human & infrastructure resources to improve production efficiency, investment competitiveness, community & ecosystem health.

Difference between Sheathed and Shielded cable?

Sheathed cabling normally contains 4 sets of wires (like normal Ethernet cable) with a covering of a plasticy - exterior material. Normally this is PVC but many newer types of cabling use other sheathing materials - especially for cabling designed for fire codes. Shielded cabling commonly includes a thin metal foil surrounding the wire pairs under the plastic sheath. This greatly increases the EMI resistance of the cable when it is terminated correctly. Many shielded cables also include an extra wire that "grounds out" the shielding foil. With terminators that include a metal body you can connect the extra, grounding wire to this terminator shield and ensure the highest amount of protection.

Shielded cable is recommended for areas with high levels of interference (such as industrial settings) which may cause signal degradation. For most common household uses, sheathed cable is perfectly appropriate.

What is the Difference between the TCP and UDP in computer networking?

An important difference is that TCP includes mechanisms for reliable data communication (lost parts of the communication are re-sent), UDP doesn't. TCP is used when such a reliable communication is important. When speed is more important than reliability, UDP is used instead. This is the case with phone or video communication over the Internet.

An important difference is that TCP includes mechanisms for reliable data communication (lost parts of the communication are re-sent), UDP doesn't. TCP is used when such a reliable communication is important. When speed is more important than reliability, UDP is used instead. This is the case with phone or video communication over the Internet.

An important difference is that TCP includes mechanisms for reliable data communication (lost parts of the communication are re-sent), UDP doesn't. TCP is used when such a reliable communication is important. When speed is more important than reliability, UDP is used instead. This is the case with phone or video communication over the Internet.

An important difference is that TCP includes mechanisms for reliable data communication (lost parts of the communication are re-sent), UDP doesn't. TCP is used when such a reliable communication is important. When speed is more important than reliability, UDP is used instead. This is the case with phone or video communication over the Internet.

How does a netgear work?

neck gear, bands (rubber bands), headgear and bigger braces all do the same thing. If you have an overbite or under bite then they make them more strait and if you have a under bite or overbite then your upper or lower teeth more develop.

The only thing that is different about them is that some take long to strait your teeth and some take longer.

(The head/neck gear and bigger braces take a shorter amount of time to strait your teeth and the first few day they will hurt your gums. The bands take longer but they do not hurt.)

Hope i helped have fun getter whatever

Is DHCP the same thing as NAT?

No.

DHCP (Dynamic Host Control Protocol) is a method of providing clients network information from a router or DHCP server. It can tell a host what their IP address is, what the gateway is, what the DNS servers are, WINS servers, etc.

NAT (Network Address Translation) is the technology used by a gateway that allows a private ip address to access information on the public internet.

For example, You have a router (10.0.0.1) that acts as a DHCP server and DNS server. Something connects to your network and broadcasts a DHCP request, and is then given an ip address (10.0.0.5 for example) and told where to go to resolve domain names.

That client wants to connect to google, it makes the request first to the name server through the gateway, and then information is sent back to the gateway. NAT Allows the gateway to get the information to the correct computer behind it even though it is not directly accessable. (Google can not directly access 10.0.0.5 and vice versa)

Does a laptop have an ip address?

Every PC connected to the internet has got a unique ip.

Why does it matter how your computer is connected to the network?

I don't get your question. What do you mean: "the network"? Are you referring to the Internet?

How does it matter? If you're not connected to the "network" --- and I assume your referring to the your Internet connection --- then, you're not going to be "connected". You can't access the Internet.

To go further --- you asked "why does it matter HOW your computer is connected". To answer that, I assume you're asking about your "platform", as in Windows, Mac, Unix, etc. In that case, it doesn't matter.

All platforms are capable of accessing the 'net.

If you're asking about the methodology of "connecting", such as "dial-up" modems versus DSL or high-speed cable access, then there is a difference.

Not sure about what you're asking. Re-phrase your question so that we can help you.

How do you access a virtual private network?

A Virtual Private Network is secure network and isonly accessible by authentication, if we consider a paid vpn software it requires a login to access VPN servers, the main reason of Virtual Private Network lies in this privacy..

Read about it here:

boxpn.com/faq/general

There are answers to all the important questions.

If that - is not advertising Boxpn, although I use them, but just pretty handy manual with explanations of what and how to do it.

How computers are used in airports in brief?

Computers are used in airports to:

* Keep track of the planes' locations, speed, direction, status, etc. * Monitor security devices like cameras, x-ray machines, and metal detectors * Keep up with the departure/arrival status * Communicate over screens audio systems, and paging devices * It is used for saving, who have booked the tickets
To keep all the plane times, to scan tickets and to search problems in the airport. Oh... also to keep in touch with other airports.

How do you install a TCPIP protocol?

Virtually all modern operating systems include a TCP/IP stack, thus obviating the need to install one. Without knowing what esoteric platform you are using, no one could possibly help you install one.

What is software hacking?

software hacking where you hack a game ,website or even a computer, to download this software, they could be a scam most of the time they are, but still i would take my chances that is how brave i am.

What the dhcp server is on a computer and how to change it?

You cannot select which DHCP server is used because the server is found through broadcast. Also only one server is allowed per network segment, so only one should exist.

In windows server 2003 How many Client Access Licenses do you have by default?

Hi, In windows server 2003, by default you can use 3 client access licenses; however you can increase the number of licenses by adding the Terminal server in you network and purchase more licenses from Microsoft. Once you add the Terminal server role on the server, then simply add the Terminal Services Licensing from "Add remove windows component" With this way you can use more than three session at a time. Let me know if you have any questions. -Nitin