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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
What does a workgroup switch of a network do?
The Switch by paying attention to the traffic that comes across it, it can "learn" where particular addresses are. For example, if it sees traffic from machine A coming in on port 2, it now knows that machine A is connected to that port and that traffic tomachine A needs to only be sent to that port and not any of the others. The net result of using a switch over a hub is that most of the network traffic only goes where it needs to rather than to every port. On busy networks this can make the network significantly faster.
What device is used to connect a local network to other networks?
A router is necessary for this purpose
What topology should be used in company?
The topology that is chosen depends on a number of factors, including:
- cost/budget
- length of the network
- scalability and future expansion plans
- Infrastructure and current cabling requirements
- Protocols used
List three advantages of TCPIP model over OSI model?
hiiii its simpler than osi osi is intra net however tcp/ip is internet ethernet cabling give more efficient in data transfer various protocols used for various application port technology implemented to transfer and retrive various application at the same time Regards Raja rajeswaran.N
How many ip address classes are there?
class A = 16777214
class B = 65634
class C = 254
class D = not defined
class E = not defined
That's not a question that anybody can really answer without some additional info. Whats the budget? Whats the purpose of this LAN? How many computers are going to be on this LAN? Does it require internet access? Is it to be a wireless lan, or is it to be wired? How big of a priority is security? Does it need fault tolerance? Will users need remote access? Is there going to be a proper server, or is it going to be a a refurbished machine with an open source OS?
The computer requesting information is called a CLIENT.
The computer responding to the request is called a SERVER.
Data transfer from a client to as server is reffered to as an upload.
EX. When you want to enter the game. Ur the client waiting for the server to get you in
Data transfer from a server to a client is reffered to as a download.
EX. When you download stuff from Limewire or Utorrent. Your the server waiting for the client to give you the song or movie.
Which network cable should you use to connect PC to printer?
Whether your printer uses a serial port, or parallel port, or USB port, or wifi, decides what type of cable you need. Name and model of printer? Have you looked on the maker's website or user guide for instructions?
Where do you find sound drivers for Toshiba Satellite L310 notebook?
You can find them on Toshiba's support site. The L310 is sold primarily in Asian markets, so you have to use the Asian site, not the usual American one. You can find a link to the drivers for the sound card below.
How many layers does osi have?
The OSI Model have 7 Layers
L7 Application = Just remember that protocols that require the end user to enter a request are L7 protocols.
L6 Presentation = Just remember that there are four primary tasks that L6 is concerned with: Compatibility with the OS, Proper encapsulation of data for network transmission, Data formatting(ascii or binary), & Data encrypton, Compression, and Translation.
L5 Session = L5 is the "Manager" of the twoway communication b/w two remote host.
L4 Transport = Just remember that Segment take place at this layer.
L3 Network = Just remember that data are place into Packet at this layer.
L2 Data Link = Just remember that Packet are put into Frame at this layer.
L1 Physical = DATA, SEGEMENT, PACKET, and FRAME are put into Ones and Zeros!
What is the difference between the router and the hub?
A hub (or L2 switch) performs data bridging/switching/forwarding at the OSI Layer 2 level for data destined to another address on the same subnet.
For data to be forwarded to another subnet, that data must be routed at the OSI Layer 3 level which is performed by a Router (or L3 Switch).
Routers collect various information about other networks it can forward traffic to and from, what routing protocols are used and which path(s) to forward that data to.
What transmission speed does 100-Mbps or Fast Ethernet support?
Ethernet supports speeds as low as 10 Mbps and as high as 1 Gbps. There are new initiatives to support 10 Gbps in the near future.
What are the seven layers in the Internet protocol stack?
1.physical layer
2.data link
3.network
4.transport
5.session
6.presentation
7.application
What are the advantages of using a LAN?
LAN Advantages:
-Workstations can share peripheral devices like printers. This is cheaper than buying a printer for every workstations.
- Workstations do not necessarily need their own hard disk or CD-ROM drives, which makes them cheaper to buy than stand-alone PCs.
- User can save their work centrally on the network's file server. This means that they can retrieve their work from any workstation on the network.
- Users can communicate with each other and transfer data between workstations very easily.
- One copy of each application package such as a word processor, spreadsheet etc. can be loaded onto the file and shared by all users.
-Cost. Individually licensed copies of many popular software programs can be costly. Networkable versions are available at considerable savings.
-Shared programs on a network allows for easier upgrading of the program on one single file server, instead of upgrading individual workstations.
-Speed. Sharing and transferring files within Networks are very rapid. Thus saving time, while maintaining the integrity of the file.
LAN Disadvantages:
- Networks are difficult to set up and need to be maintained by skilled technicians.
- If server develops a fault, users may not be able to run the application programs.
- A fault in the network can cause user to lose the data.
-If the network stops operating then it may not be possible to access various computers.
- It is difficult to make the system secure from hackers, novices or industrial espionage.
- Decisions on resource planning tend to become centralized.
- Networks that have grown with little thought can be inefficient in the long term.
-As traffic increases on a network the performance degrades unless it is designed properly.
- The larger the network, the more difficult it is to manage.
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What do you know by the OSI Reference model?
Open Systems Interconnection ( OSI ) is a standard reference model for communication between two end users in a network. The model is used in developing products and understanding networks.
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Discuss the advantages of metropolitant area network?
what is the advantage of the metropolitan area network?
* sharing of resources such as printers; hence cost effective.
* can send local emails
Which of the following devices separates collision domains?
Network+ Guide to Networks answer: Bridge, Switch, Router
What is the Network plus certification?
CompTIA N+ certification is a proof to the candidate's expertise in installing, configuring and troubleshooting network hardware, protocols and peripherals. Upon the completion of this course, the candidate will be able to effectively troubleshoot the networking system.
Source: http://www.bookmybootcamp.com/bootcamp/comptia-networkplus-bootcamp
Ip address 127.1.1.0 in what class?
The entire 127 range (127.0.0.1 to 127.255.255.254) is considered the LOOPBACK address range, and is in the class A network. This address range or block is reserved just for local testing.
What are difference between tcp and UDP?
Difference between TCP and UDPThere are two types of internet protocol (IP) traffic, and both have very different uses.
- TCP(Transmission Control Protocol). TCP is a connection-oriented protocol, a connection can be made from client to server, and from then on any data can be sent along that connection.
- Reliable - when you send a message along a TCP socket, you know it will get there unless the connection fails completely. If it gets lost along the way, the server will re-request the lost part. This means complete integrity, things don't get corrupted.
- Ordered - if you send two messages along a connection, one after the other, you know the first message will get there first. You don't have to worry about data arriving in the wrong order.
- Heavyweight - when the low level parts of the TCP "stream" arrive in the wrong order, resend requests have to be sent, and all the out of sequence parts have to be put back together, so requires a bit of work to piece together.
- UDP(User Datagram Protocol). A simpler message-based connectionless protocol. With UDP you send messages(packets) across the network in chunks.
- Unreliable - When you send a message, you don't know if it'll get there, it could get lost on the way.
- Not ordered - If you send two messages out, you don't know what order they'll arrive in.
- Lightweight - No ordering of messages, no tracking connections, etc. It's just fire and forget! This means it's a lot quicker, and the network card / OS have to do very little work to translate the data back from the packets.
What are characteristics of a computer network?
When you have a network containing at least two interconnected computer devices, you can call it a computer network. The main purpose of this computer network is to collaborate and perform communication tasks as well. Smart home technology is a perfect example of computer network. For more details visit Best Satellite Internet Provider and Electronic Installer In Pontotoc MS or call 662-509-57772 now.
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