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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 IP based authentication?

user and organizations can be authenticated upon their IP-address without having to enter username and password

I am using bsnl broadband I've connected with wire line. but i couldn't connect wireless it show wireless connected but i couldn't opne web page?

Depending on internetprovider you have to configure your wireless router. You might need to setup Primary DNS ip address, secondary DNS ip address, gateway...

Where do you find the Wep key for ds?

Check your wireless router's documentation on how to find its WEP key. Assumedly your PC/laptop also connect to your router, so they should have the WEP key already or else they couldn't connect.

Examples of hacking?

Hacking is when somebody gains access to a computer, typically without permission, to preform a certain task. Tasks range from using the computer as a distribution point for spam, downloading files from the computer, stealing account info for various services, etc.

What do you mean by VLAN?

If you've understood most of this document so far, the principles of Virtual private networking (VPN) will be easy to understand. The most confusing part of VPN is that many acronyms show up.

Why Osi model is a model not a protocol?

because osi is open system interconnection that used to interact with open system

How do you use a FTP client on a WiFi network?

There is no difference with FTP as a client on either a wired or wireless network; you use it the same way.

What does the quick power on self test do?

Same as the Power On Self Test, but less thorough (and thus faster)

Checks to ensure all components are baseline functional. POST is not necessary today except to initialize and power-on devices, since flaws are not often detected by a POST test unless they are very severe or blatant (IE, missing)

Quick POSTS just check that they're there, initialize, and boot.

Normal POSTS also count RAM, check CPU function, check storage device I/O, boot and test the VGA BIOS, etc.

Which online retailers sell a switch hub?

Switch hubs are sold online through consumer electronics corporation's websites (e.g. Best Buy, Future Shop or Radio Shack). They are also sold on electronic commerce corporations (e.g Amazon) or online auction sites (e.g. eBay).

Can the length of an Ethernet be increased to many segments of 500 meter each merely by adding a repeater to connect each additional segment?

Yes, 2.5km is the maximal operating range of ethernet, or basically 5 repeaters.

Repeaters known as repeaters are cheap but rare, but a switch will do the same

thing...since signal conditioning is part of their basic funtionality.

Beyond 2.5km, you will need a fiberoptic backbone.

If your looking into gigabit, you will need high quality cable and straight runs....but mostly repeaters have to be put in at 100m in a corporation to achieve a full gigabit thoughput, otherwise the switch will reneg down to 100..

What is the purpose of a DCE in computer Networking?

When you're using serial cables in routing you need a DCE side and a DTE side and both have to be timed just right for it to work.

What is used to connect different devices but cannot filter or segment traffic?

Probably a switch, but many switches have VLAN and Firewall capabilities today.

What does it mean to have free dns service?

"Having a free dns service provide you with an open domain name. This domain name service is not specifically tied to an internet service provider, As a result of this open access internet speeds can be faster."

Diffen lan vs wan?

A local area network (LAN) exists in a house or a university campus, while a wide area network (WAN) exists over many office buildings separated by a vast distance. The office buildings in a WAN may be in different countries or even continents. For example, the headquarters building may be in the USA, the regional office building may be in the UK, and the branch office building may be in India. The workers in the three buildings use WAN to collaborate with each other. The Internet can also be considered as a WAN.

How does frame relay work?

Frame Relay is a packet-switching technology. It works by sending information in packets, which are called frames, through a shared frame-relay network.

What is net command?

a top secret ninja enforcement team (net) headquarters in japan

What is a dual counter-rotating ring topology and how is it configured?

Consists of having two rings the outer ring or the primary and an inner ring or secondary ring, Data flows counterclockwise on the primary or outer ring and clockwise on the secondary or inner ring.