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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 the difference between ring topology and bus topology?
Basically, in a Bus topology, any station connected to the network can speak at any time. In a ring topology, the stations must wait to be issued the "token" before they can speak. Ethernet (Bus topology) uses CSMA/CD (Carrier-Sense Multiple Access/Collision Detection) to determine when two or more stations speak at the same time. In Ring topologies such as Token Ring and FDDI, this isn't an issue since the passing of the "token" guarantees that no two stations will speak at the same time.
A NIC which has a connector for an ST or SC is using what type of network media?
Fiber Optic Cabling
Does not get affected by EMI (Electromagnetic Interference) but its expensive
What is the difference between workstation and domain?
In terms of the internet:
A domain is a specific 32-bit URL address on the internet usually shown as 4 numbers separated by dots (ex: 70.100.145.175) or as alphanumeric name
(ex: www.wikianswers.com).
A workstation is one computer within a domain.
Use their name - they're just like any othe teacher. Most head's don't like extra special attention.
I'm a Deputy headmaster
What connection methods would not be used to connect devices between two different offices?
infrared.
How to send message on a peer to peer network?
1.rightclick on "my computer"
2.select "manage"
3.doubleclick on services&applications"
4.doubleclick on "services"
5.in that window find "MESSENGER"named one
6.if u find, doubleclick on it,the "properties"window will be open
7.on "general tab"set "startup"to "automatic"
8.and below u can see"start"button, click on it >>>ok
open "command prompt"
type "net send <ip of reciever> <your message>
press enter
Why we use 64 kbps for digital voice?
It's a relatively good compromise between quality and the amount of data having to be transmitted.
How do you remote link to my home computer?
You can use Remote Desktop Sharing Programs Like Teamviewer, Logmein etc.These are freeware programs which you can easily download from internet.The other computer , with which you want to link to must also have the same program running.
Network packets travel through different waypoints from A to Z compared to packets traveling from Z to A.
Asymmetric Routing (ASR, also seen:"asymmetrical route") does typically happen in the Internet and does not have to be a problem. Instead, it may be a manually configured - or most likely - automatic optimization.
In trivial local area networks (LANs) ASR is not to be expected, especially if a LAN does not have more than one gateway.
In complex LANs though ASR is possible. It may work fine, especially if packets only travel through routers but not through firewalls.
Typically firewalls expect to see the whole communication of each (e.g. TCP) connection passing through them but due to ASR they might only see packets in one direction.
A firewall may then supress all such communication as a security feature, by e.g. disconnecting such TCP connections.
a.
Logical address will have
3 bits to specify the page number (for 8 pages) .
10 bits to specify the offset into each page (210 =1024 words) = 13 bits.
b.
For (25) 11 32 frames of 1024 words each (Page size = Frame size)
We have 5 + 10 = 15 bits.
Can I combine two computers to work as one to be stronger?
I honestly don't know; I've been trying to do the same thing for a little while. If you get a solution, can you tell me at aforsberg@eskimobob.com please?
thanks man
What is a network types of network and how network mission is critical in business?
network is connection of two or more computers .
three main types of network:
1.LAN(local area network) means-LAN are confined to a small area.Usually,this small area is within a single building,although it need not be confined to just a single office.
Sometimes LAN's spread through several buildings on the same site.
2.MAN (METROPOLITAN AREA NETWORK) means-A MAN is a computer network run by one (1) organisation that connects together several LAN's across a larger area such as a city.It is larger than a LAN
3.WAN (WIDE AREA NETWORK) means-A WAN is a computer network spread over a very large area,and uses satellite and other connection rather than cable
there are also 2 others
4. CAN (campus area network)
5. PAN (personal area network)
1.PEER-TO-PEER2.CLIENT/SERVERBUISNESS DATA & INFORMATION CAN BE SHARED BY DIFFRENT BUISNESS ORGANISATIONS SITUATED AT DIFFRENT LOCATION.
IDENTIFYING JOB OPENINGS AND ARRANGING MEETINGS WITH THE PEOPLE WHO WILL MAKE THE HIRING DECICIONS
Your connection is slow because with a hub all four of you are sharing the same bandwidth. So if your hub has 100Mbps of bandwidth then each of you will be getting 25Mbps (100/4). On the otherhand a switch allows each of you to have the same bandwidth. So if you have a 100Mbps switch, then each of you will get 100Mbps. Hope this helps,
Is it true or false Ethernet is an found on many LANs?
True - Ethernet is the predominant protocol found in LANs today.
ifconfig -a
Basically, the Microsoft certificate is about system administration and the Cisco certificate is about networking.
MCITP (Microsoft Certified Information Technology Professional) focuses on any of several Microsoft server systems technologies and documents knowledge of these products and their application in business IT environments. Entry-level MCITP focuses on Windows Server and Active Directory (and related, commonly installed tools), but there are several MCITP options (and growing regularly), including Exchange Server, SQL Server, and Sharepoint, to name a few.
CCNA is the comprehensive exam associated with the Cisco Certified Network Associate Routing and Switching certification. This exam is designed to test the knowledge and skills candidates need to install, operate, and troubleshoot a small to medium business branch network. There are 9 CCNA certificates, and Routing and Switching is the most popular one.
Cisco contributes most in networking, followed by other peers (HP, Brocade, Juniper), and doing CCNA is always a plus.
Additionally, companies prefer to hire CCNA-certified professionals due to customer requirements and also because of the benefits they receive when purchasing equipment from Cisco.
A good network can be designed only by understanding the basics of the network. Therefore, having a CCNA certification can provide you with the knowledge you need to continue your in-depth work. But in the end, it's up to you whether you choose CCNA or MCITP. Each certification has its advantages and disadvantages, and each certification is different from the other.
What can one do with the Netsol who is command?
With the Netsol whois command one can query a database and find out details of other users. It might be used to find someone's domain name or IP address when online.
When FDM is used how many users can be support?
It is based on the band width of the system and bandwidth located to each channel in it.
How does a terminal server work?
A terminal server is a specialized computer which aggregates multiple communication channels together. Because these channels are bidirectional, two models emerge: Multiple entities connecting to a single resource, and a single entity connecting to multiple resources. Both of these models are widely used. Both physical and virtual resources can be provided through a terminal server: centralized computing can provide multiple users access to a remote virtual operating system. Access Providers often use terminal servers to terminate physical connections to their customers
To see the working of the terminal server visit
http://technet.microsoft.com/en-us/library/cc755399.aspx
Answer:
Terminal server as allows windows Small Business Server 2003 and windows XP to host multiple remote desktop session. Terminal service provides for application deploment in windows server 2003,windows server terminal services that client computer connect to a remote computer, remoter desktop connect from to type in run mstsc /span. windows server 2003 system family provides a client license management systme known as teminal server licesing.
Remote desktop connection by default installed in windows XP, remote desktop used to initiate a terminal services session from client side. To open remote desktop type mstsc in the runbox then enter.
Create a Terminal Services From client disk. We are creating client disk a) Click start point to programs then administartative and after that click Terminal Services client creator. b) Create installation disk in dialog box, click the version of the clients disk then ok. c) Insert the disk then ok ,you have now created a teminal services client disk.
Microsoft windows terminal services built into windows 2000 server and windows server 2003 and then windows xp remote desktop. using terminal services connect the internet will require that you open port 3389, used by the remote protocol and then check the firwall setting. and tcp connection is configured for the terminal server network to allwow users will be connect. To disable or enable the Remote desktop service on a windows xp or windows serve 2003 computer, perform the follwing steps :- 1) Click start and then contorl panal and then select the system. 2) And then click the Remote tab. 3) After that Remote desktop, unchecked the Allow users to connect remotely to this computer .
