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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 lock your computer?
depends on which o.s(operating system example linux, xp, vista and so on...) you are running
It depends on the routing protocol in use, for example RIP uses the hop-count to determine the best route where less hops is better, OSPF uses cost, EIGRP uses a composite metric (BW + Delay + Reliability + Load) etc.
A enables your computer to connect to other computers or to the Internet?
To connect a computer to other computers (i.e. to a network) you need a network adapter, also called a Network Interface Card. This adapter should be suitable for a network which you want to connect to. Wireless adapters are for wireless networks, wired adapters are for wired networks.
A network connection.
if its file sharing a local network over your lan, or if its a game, social networking site on the internet its the internet.
A network card connnects to a router (wireless or LAN) the the router connects to other computers or a modem (intranet-telephone interface)
If this is a computer related question; a WAN is a Wide Area Network. If you have 2 or more computers in your home or business and they are connected to each other you have a network. This is considered a local area network - LAN.
If you have 2 of these groups of computers in separate locations they are each individual LANs. When you connect the separate LANs together either with dedicated phone lines (like T1) or through the internet using a 'private' (VPN is one type) connection they become a WAN.
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Answer
WANs or Wide Area Network are usually setup in different geographical Locations with the help of certain hardwares such as Router,Gateway and Bridge.
It uses communication switching technique like Circuit,Message and Packet switching to exchange data.
It used certain services to switch data ( exchange of data between nodes) like
PSTN,PSDN,VAS,ISDN or Private Network.
Do you need a hub as well as a router?
If you own a large business that is spread all over (like in more than one city or state), then yes, you will need a router as well as a hub. Hubs only connect local systems to one network, whereas a router connects multiple networks together, thus enlarging that single network.
It's most likely that you got: Error 1068 "The dependency service or group failed to start" related to your print spooler. This problem was actually answered elsewhere in FaqFarm, click the link to the right --->
What is the most common protocol for computer networking?
ip - internet protocol.
The Internet uses many layered protocols. The two protocols used the most are tcp/ip (tcp protocol on top of ip) and udp/ip (udp protocol on top of ip). Web browsers use tcp/ip. Email uses tcp/ip. Many web applications and games use udp/ip for broadcasting video, audio, and for multiplayer games.
ip runs within/on yet many other base protocols. The most common protocol inside homes and business is ethernet. tcp/ip can run on ethernet and many other base protocols.
Analogy: Think of shipping and boxes as protocols and packets. You might ship something in a box to another country. The address system on the box could be part of the ip protocol. Your box goes in a UPS truck (a bigger box - think ethernet packet holding your ip packet) with other boxes then goes to a distribution center (a router), then maybe into a container and on a ship (a different box - say FIOS fiber protocols). So tcp within ip within ethernet is like ups package within container on a container ship.
In networks the containers can but don't always get bigger as you get onto the backbone - they tend instead to get faster. An ethernet packet might contain 2 different ip packets each which might have 2 tcp packets. More often it is a 1 to 1 relationship.
What is the block function of a modem?
This is a diagram that can be working. It will show all of the steps that will need to be taken while the computer is in working order.
What are the responsibilities of a router?
1. Forward packets.
2. Determining best path from the sender to the receiver
What type of device can be used to physically secure your network?
First of all you can use a separate room with limited access, also there are some special safes you can purchase. Safes allow to block physical access to equipment. They are pricey though.
How do you connect a laptop to a printer hooked up on a PC?
So, for some reason, you do not want to connect the printer directly to the laptop. To connect to the printer via another computer means creating a network, which requires a piece of equipment called a router. Also, both the laptop and the PC will have to have Ethernet capability, which may require installing a Network Interface Card in one or both of them. The printer will have to be configured as a network printer, which requires allowing sharing in the Network Folder on the Control Panel. Then, after you have established your network, you will have to install a network printer on to the laptop. This is done by double clicking on the 'Network Neighborhood' icon on the desktop, then right-clicking on the icon for the printer and selecting 'Install'.
A signal's data rate is often confused with its baud rate rate. The two are closely linked but are not identical.
The data rate is a measure of how many bytes or bits of data can be sent per second. The baud rate, on the other hand is a measure of how many physical bits are sent per second, including start and stop bits and other idle bits. The baud rate is therefore higher than the data bit rate. A typical asynchronous serial signal that runs at a rate of 9600 baud will carry ten bits for every byte of data sent. One bit is a start bit. Another is the stop bit and the remaining eight are the eight bits of data. The bit rate is actually 8/10 x 9600 = 7680 bits per second.
Most transmission methods have an overhead that makes the data rate a little slower than the baud rate. In time critical applications, the difference between them can become significant.
Border Gateway Protocol (BGP) is a way to transfer data and information between different hosts such the Internet or routers. It is commonly used between Internet Service Providers (ISPs).
Which layer of the OSI model is concerned with end-to-end message delivery over the network?
transport layer of osi model is responsible for end to end delivery of packets over a network
How are IP addresses assigned from a pool of IP addresses?
That means that the DHCP server keeps track of what IP addresses - out of a pool (or set) of addresses - have been assigned. Any time a host (computer or similar) requests an IP address, the DHCP server will assign an available address and mark it, in its memory, as "assigned" so it won't assign the same address to another computer.
That means that the DHCP server keeps track of what IP addresses - out of a pool (or set) of addresses - have been assigned. Any time a host (computer or similar) requests an IP address, the DHCP server will assign an available address and mark it, in its memory, as "assigned" so it won't assign the same address to another computer.
That means that the DHCP server keeps track of what IP addresses - out of a pool (or set) of addresses - have been assigned. Any time a host (computer or similar) requests an IP address, the DHCP server will assign an available address and mark it, in its memory, as "assigned" so it won't assign the same address to another computer.
That means that the DHCP server keeps track of what IP addresses - out of a pool (or set) of addresses - have been assigned. Any time a host (computer or similar) requests an IP address, the DHCP server will assign an available address and mark it, in its memory, as "assigned" so it won't assign the same address to another computer.
What protocol and port does http web traffic use?
What protocol is used by web servers and on which port ?
Explain how a single computer can be a web server and email server at the same time?
A single computer can be both a web server and a email server at the same time because the two services run on different ports.
Note: A single server machine you can configure both service. configuration mathode same. do not use big network. because server speed depend upon how many services you configured.
What layer of the osi model does the gateway work?
That is a loaded question...it depends on what you mean by gateway. I proxy server can be a gateway so can a router. Typically, its gateway=router. check this chart out: http://www.geocities.com/SiliconValley/Monitor/3131/ne/osimodel.html I consider it on the Network layer. Let me know if this helps! Thanks, Eric Elliston President of Elliston Consulting http://www.ellistonconsulting.com
RTS/CTS threshold is short for request to send/clear to send in wireless networking. This was developed when a problem called hidden node was discovered. Imagine a transmitter or node at point A, another at point C and in between them,a node at point B. Both nodes A and C can communicate through node B but A and C can't see each other. Hence, there will be instances that node A will be sending packets of data at the same time as C and collisions occur. When this happens, the system triggers the threshold to minimize the collision. A handshake of sorts takes place.
Data transfer on LAN is much faster than on WAN.Thus replication and fragmentation will not increase throughput
and speed-up on a LAN, as much as in a WAN. But even in a LAN, replication
has its uses in increasing reliability and availability.
