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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
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What is forest in computer network?
A forest is a collection of multiple trees that share a common global catalog, directory schema, logical structure, and directory configuration. Forest has automatic two-way transitive trust relationships. The very first domain you create in the forest is called the forest root domain.
Forests allow organizations to group their divisions which use different naming scheme, and may need to operate independently. But as an organization they want to communicate with the entire organization via transitive trusts, and share the same schema and configuration container.
data signals
Unshielded twisted-pair (UTP)
More specific, a computer network is an infrastructure which provides connectivity to multiple autonomous computer systems in order to communicate (e.g., e-mail) and share resources. These resources include hardware, such as storage media and peripherals (e.g., hard disks, printers, etc.), software (i.e., computer programs), and information/data (i.e., computer files - for example, a database).
Computer network is also: two or more computers that are connected together to share resources such as hardware, data, and software. Most common are the local area network (LAN) and the wide area network (WAN). A LAN can range from a few computers in a small office to several thousand computers spread throughout dozens of buildings on a school campus or in an industrial park. Expand this latter scenario to encompass multiple geographic locations, possibly on different continents, and you have a WAN.
Hope this helps!
What are the advantages and disadvantages for using Category 5 cable for Ethernet?
advantage: it is very common and inexpensive
disadvantage: you are limited in speed to 100 Mbps
Terminal Services
Data Link layer:
Data link layer has several functions to perform they are providing a well defined service to the network layer, determining how the bits of the physical layer are grouped into frames, dealing with transmission errors, regulating the flow of frames so that slow receivers are not swamped by fast senders, and general link management.
Services provided to the network layer:
The principal service provided by the data link layer to the network layer is the transmission of data from the source network layer to destination network layer. This can be accompolished in 3 ways:
1. Un acknowledged connectionless service.
2. Acknowledged connectionless service.
3. Connection oriented service.
Unacknowledged connectionless service consists of having the source machine send independent frames to the destination machine without having the destination machine acknowledge them. This is used where the re is a very low chance of transmission errors.
In Acknowledged connectionless service the source machine send the frames indepenedently to the destination machine, but with acknowlegement to each and every frame from the destination machine.
In connectin oriented service a connection is established between the source and the destination until all the data is transfered.
You know what a LAN is. Its a small group of computers all hooked up together. These computers are all hooked together by wires. And its the LAN card (nic as its more commonly known) that the wire plugs into in the computer.
physical layer
How do you compose an email a new job introducing yourself?
All emails looking touting for jobs should have an introduction, a body and a conclusion. In fact most important emails should be structured like this.
Example
Dear JMC,
I have been working in the food industry for over 4 years and now looking to branch out, my experience and expertise is vast and I am very keen to bring these skills to JMC.
I am very adaptable in terms of roles but would be ideally suited to a production based role or similar. I hope that JMC has vacancies and you would be willing to have me in for an interview.
I look forward to hearing from you.
Best Regards,
John Collins
Packet internet grouper (ping) is use to check the physical and logical connectivity of host to the network. You can download several (free) programs to execute advanced pings. === === PING is a component of various operating systems, used to -- as stated above -- test connectivity. By itself, the PING command doesn't tell you a lot of interesting things you might want to know. As such, many people have written software in a wide ranges of languages with a wide range of APIs that add features and capabilities to the vernerable PING command. Most incorporate features of TRACERT (called traceroute -- another integral component of most operating systems), as well as geographic mapping, graphing over time, multiple route testing, history, and many other features. Some of these are free; some are not.
255.255.240.0
126.0.160.0
What are the advantages of computer networks for a collage?
in colleges computers are used to keep a record of the fees paid by the students
Why did they call local area network local?
A LAN or local area network is a computer network that includes computers in the local area. At my work location, there have been local area networks that serve the building. About 12 years ago, they connected our local area network to 5 or 6 other of our buildings located a mile or two away, and it was not local, anymore: It was then a wide area network, or WAN.
Find gateway address subnet mask Linux?
Use the 'ifconfig' command on your adaptor, or just 'ifconfig -a'
Buy a router and one short Ethernet cable to run from the router to the nearer computer and one long Ethernet cable to run from the router to the farther computer.
If both computers have built-in Wi-Fi (wireless), then buy a $40 Wi-Fi router at BestBuy, Amazon.com, Newegg.com, etc., and then you don't need Ethernet cables.
How do you get on the net with an Acer mini laptop?
You need to connect via a wire or via wireless to a router that would allow internet access. You would also need a network adaptor card (NIC) along with the proper settings.
Topology deals with the mathematical properties of shapes.
Short for Round Tripp Time...
It's the time a TCP packet takes to travel to it's destination and back (in the form of an acknowledgement-packet).
Describe the fundamental properties WANs and LANs have in common?
-Both are designed to enable communication between clients and hosts for resource sharing.
-Both use the same protocols from layer 3 and higher of the4 OSI model.
-And both networks typically carry digitized data via packet-switched connections.
