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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
How do you network three computers without a hub?
One Answer:
It is possible to connect two computers without using a hub by using a switch instead. A switch is better than a hub because it creates a collision domain (CD) and stops them from happening when two devices try and send frames at the same time. Rather than buying a cross-over cable to connect two computers together, you can use two straight-through cables (your average, everyday network cable) and connect them to a switch. This also allows for growth where you can add more computers to the switch if the network grows.
Another Answer:
With Ethernet, you can use a crossover cable to connect two computers without using a hub, switch, or existing network. Crossover cables are Ethernet cables that have the send and receive wires (pins) switched along the length of the cable. The pins that send information from one computer are connected to the pins that receive information for the second computer. You can use a regular cable if they are modern computers.
What are the 3 requirements for a network connection?
You must have the following for a network connection:
- Sender or transmitter
- Receiver
- Network Media
The first two are in the NIC card for each device in a network, and the media may be either wired or wireless for a connection between the sender and receiver.
How would you accurately describe a converged network?
A network is converged immediately after a topology change has occurred.
A network is converged when all routers flush the unreachable networks from their routing tables.
A network is converged after all routers share the same information, calculate best paths, and update their routing tables.
What is meant by network congestion?
When too many packets are present in a subnet, performance degrades. This situation is called Congestion.
Update:
In any network when there is too much the data traffic at a node that the network slows down or starts loosing data, it is known as network congestion. It degrades quality of service and also can lead to delays, lost data or e.g. dropped calls on a telephone network.
- Neeraj Sharma
when excess of data travels in a subnet or in node there will be a loss of data, this excess flow is know as network congestion.This demotes the performance in network e.g.improper delivery of fax
What does a router does in a LAN OR WAN environment?
It decides where data should go on a network.
Imagine a company's network. One user sends an email to someone else. Their computer sends the email to the router, which then sends it out to the mail server. The mail server then sends out a message to the other user's computer telling them that they have received an email. The router picks this up and sends it in the correct direction.
Advantages and disadvantages of hard-wire and soft-wire systems?
Advantages and disadvantages of hardwire and softwire systems
What difference between switches and hub?
The difference is in the way how they process communications between two or more computers. If you send some information to one computer only using hub it will resend the information to all computers in the network. When switches resend information to the only one computer.
What is port switching and segment switching?
PORT SWITCHING:- A Machine is directly Connected to the Switch's port..,so that you can run parallel full speed between machines....its an expensive solution since the unit price of switch per port is high!
SEGMENT SWITCHING:- A Whole segment is connected to the port of the switch..here you can either connect the workstation directly on the switches port or use segments to connect...Its is more effective switching compared to Port Switching!
Is a simple Application layer protocol used to synchronize the clocks of computers on a network?
NTP(Network Time Protocol)
What operating systems supports peer-to-peer networking?
Almost all modern day operating systems support peer to peer networking, and are usually the standard network protocol after a new installation.
10.0.0.0 what is the subnet mask of this IP address?
255.0.0.0 There is only one subnet allowed with this.
Best Buy Co., Inc.
7601 Penn Avenue S.
Richfield, MN 55423
(612) 291-1000
A peer to peer network that shares resources without a server is known as a?
A host in a peer to peer network can offer resources to other hosts or devices in the network without being a server. If you share a printer, or a folder across the network you are sharing information or resources with other devices; in each case neither system is a server.
The ability to do this is built in to most desktop client operating systems.
What is the difference between class a and class b address in network?
A class C network has a subnet mask of 255.255.255.0 and can have 254 IP addresses, for example from 192.168.0.1-192.168.0.255 A class B network has a subnet mask of 255.255.0.0 and can have 255 X 254 IP addresses, for example from 192.168.0.1 - 192.168.255.255
What is the reason peer to peer networks are generally installed at home?
d.)The expense of a server is difficult to justify for most home networks.
PING
Do all home networks require each computer on the network to have its own network adapter?
No. Each computer's Operating System should have that built in.
All transport layer protocols are concerned with reliability?
I'm gonna say they most definitely are NOT all concerned with reliability. UDP is a transport layer protocol that provides connectionless, unreliable data delivery services.
What is the Types of network architectures?
- A design. The term architecture can refer to either hardware or software, or to a combination of hardware and software. The architecture of a system always defines its broad outlines, and may define precise mechanisms as well.
- An open architecture allows the system to be connected easily to devices and programs made by other manufacturers. Open architectures use off-the-shelf components and conform to approved standards. A system with a closed architecture, on the other hand, is one whose design is proprietary, making it difficult to connect the system to other systems.
Which information is found in both the TCP and UDP header imformation?
The host and destination ports.
Which tool can you use to verify that a network port on a computer is good?
A network multimeter will test cables, ports and network adapters and a loopback plug can work on ports provided by a computer, wall jack, patch panel, switch, router, or a other device that is turned on. Pg 505 A+ Guide to Hardware, 6th edition.
This film will show you: http://www.youtube.com/watch?v=Cbk980jV7Ao
