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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
There are three different types of NAT (Static, Dynamic, and Overloading). The one you're most likely talking about is static NAT. It provides a one to one mapping.
What does the transport layer header provide?
Provides values that enable different transport layer protocols to perform different functions
How is fiber optic lighting better than traditional pool lighting?
it can be much prettier. of course it also moves electricity away from water alway a good thing, but a properly installed 12 volt light is also very safe and much less expensive.
A fiber optic lighting rig can also provide light that is more evenly distributed through the pool and requires only one light source. Changing a burnt bulb is also much less of a hassle since the lamp is not below the water line.
Why is the size of a collision domain important?
Collision domains are really bad. Not only does each computer get everyone's frames, but only one PC can transmit at a time! Your total bandwidth is reduced every time you add a PC to the network. Your network will come to a screeching halt!
Peer-to-peer is one of the network communication models whereby each of the nodes involved has equal rights and capabilities to initiate a communication session. One can implement this model in a torrent network.
What is peer to peer network is also known as what type of network?
A workgroup is one name for a peer-to-peer network.
A Subnet Mask.
Which four are WAN data-link layer protocols?
The most common WAN data-link protocols are:
1. HDLC 2. PPP
3. Frame Relay
4. ATM
How do you turn a Linksys WRT54G router into a switch?
HOW DO YOU TURN ON A LINKSYS WRT54G WIRELESS ROUTER
AnswerThose devices already have built-in switches. The 4 ports that are not labeled "WAN" provide a switching domain between them. You can simply ignore the routing functionality and use it as a switch. If you really need to go the extra mile, you can disable DHCP and assign the WAN interface a bogus IP address, or simply put the LAN interface IP address on a different subnet than your computers will actually be using.
If that above does not answer your question, describing more about what you are trying to do will help. Such as, do you already have a router and you only want another router to serve as hub or switch.
What is the difference between a hub and a switch?
A hub is a multiport repeater of broadcast information (it receives on any port) to all ports hence is called non-intelligent or dumb. A hub repeats a message to all the nodes connected to its ports.
Hubs translate any signal from one PC to all others in the same network. Switches translate from one PC only to a certain PC, not to all of them as is the case with hubs.
HUB works on Physical layer whereas SWITCH works on data link layer, HUB based networks are on one collision domain, whereas in Switch-based networks, a switch divides networks into multiple collision domains. Switch also maintains MAC address tables.
A Simple Simile
Hub - Think of a postman with a letter to deliver in a row of houses, none of the houses have numbers so he has to visit each house and ask the owner if the letter is for them.
Switch - All the houses are numbered, so the postman knows where to go, and doesn't have to bother any other homeowners.
That is the reason a HUB is called a Dumb Device (or Dumb Postman).
How many ip addresses will a network normally expose to the internet?
Organizations are all different; they have the choice of using multiple IP addresses for each client (1 address for each client, unique), or using the same IP address for all clients (via NAT proxy).
Usually the number of IP addresses is related to the number of public services that the organization will offer, such as DNS, e-mail, Web Services, FTP servers, and so on. If the organization is big enough it might use several IP addresses for each service instead of just 1 per service.
Advantages for using switches on a network?
Switches are networking devices that are a bit intelligent in their work. Switches are broadly classified into two categories:
- Non-manageable switches
- Manageable switches
The reason why switches are more preferred in a network are:
- they are really fast than your hub
- you can even manage the switch in your network
- to improve the network traffic (data transfer rate) a switch is much prefered
1, Increased available network bandwidth. 2, Reduced workload on individual computers. 3, Increased network performance. 4, Decreased packet collisions.
What are the advantages of client-server networking over peer-peer networking?
Client-server networking is centralized - Resources and data security are controlled through the server. Scalability - Any or all elements can be replaced individually as needs increase. Flexibility - New technology can be easily integrated into system. Interoperability - All components (client/network/server) work together. Accessibility - Server can be accessed remotely and across multiple platforms. Speed - network will run far better as data and resources are handled by a dedicated machine. Also currently the user of the machine experiences poor performance when everyone accesses it's resources. Backup - as all data is stored centrally it is easy to backup. Support and management - as the server controls the majority of settings on the network etc the job of support is far easier as the main element of support is provided to the server and not individual machines. Global changes are easy to make from one location.
Client/server allows the installation of anti-virus on a dedicated server, this means that all stations that are connected to that server are protected against viruses. In peer to peer, each station has to be installed with the anti-virus. Because peer to peer allows the sharing of files it is possible that some files are infected and because anti-virus is not as effective on peer to peer, the virus would get in and disrupt the network.
Why did you change from 10BaseT to 100BaseT?
100BaseT: Max. Speed is 1000 Mbps. and has 4 pairs of of Category 5e or higher. 10BaseT: Max. Speed is 10 Mbps.
What is max no of hops in hypercube network to go from one node to another?
This depends on if you are using hubs or switches.
