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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
Which network topology uses least amount of cabling?
As for most things, the lowest cost version of something is also the simplest version of something. In this case, that would be the bus network topology.
What is Fast packet switching?
fast packet switching: A packet switching technique that increases the throughput by eliminating overhead. Note 1: Overhead reduction is accomplished by allocating flow control and error correction functions to either the user applications or the network nodes that interface with the user. Note 2: Cell relay and frame relay are two implementations of fast packet switching.
Denial of service is preventing a system from providing resources or services to intended authorized clients.
Advantage of TCP: reliable data transport. Lost packets are re-sent. For this reason, many protocols that transfer data rely on TCP; this includes FTP, HTTP, and several e-mail protocols.
Disadvantage of TCP: The extra overhead makes the transmission slower. When transmission speed is more important than reliability, UDP is used instead. This is the case with phone and video transmissions over the Internet.
Advantage of TCP: reliable data transport. Lost packets are re-sent. For this reason, many protocols that transfer data rely on TCP; this includes FTP, HTTP, and several e-mail protocols.
Disadvantage of TCP: The extra overhead makes the transmission slower. When transmission speed is more important than reliability, UDP is used instead. This is the case with phone and video transmissions over the Internet.
Advantage of TCP: reliable data transport. Lost packets are re-sent. For this reason, many protocols that transfer data rely on TCP; this includes FTP, HTTP, and several e-mail protocols.
Disadvantage of TCP: The extra overhead makes the transmission slower. When transmission speed is more important than reliability, UDP is used instead. This is the case with phone and video transmissions over the Internet.
Advantage of TCP: reliable data transport. Lost packets are re-sent. For this reason, many protocols that transfer data rely on TCP; this includes FTP, HTTP, and several e-mail protocols.
Disadvantage of TCP: The extra overhead makes the transmission slower. When transmission speed is more important than reliability, UDP is used instead. This is the case with phone and video transmissions over the Internet.
What Types of network topology and give examples of each topology?
Network Topology refers to the way that cables and other pieces of hardware connect to one another. There are four common "base" types of topologies: bus, ring, star, and mesh. There are other types as well, but these are referred to as "hybrid topologies." The most commonly used network topology is a hybrid topology called the Star Bus Topology.
Other than IP what is another example of a protocol that works at the Internet layer of TCP IP?
smtp, http, anything on that specific OSI layer.
How do you get rid of port 80?
You can check if port 443 is allowed at http://port443.icannotconnect.com
What is the most popular type of networking cable?
P2P (peer-to-peer) networks are more often used in the home because they cost less than clitn/server network and are easier to configure and maintain.
in other words STRIAGHT THROUGH
For more efficient usage of IP addresses.
Instead of an ISP assigning a customer an entire class C of IPs (255 addresses), they can assign them a smaller subnet of 8 or 16 addresses instead, only as many as the customer needs.
How do you block traffic attempting to exit a LAN?
Generally traffic exiting a LAN is controlled at the router or firewall by setting rules in the configuration files for the router or firewall restricting what IP addresses traffic can be sent to, what devices outbound traffic can be sent from. You can also set rules controlling what outbound ports, protocols, and services will be blocked or allowed. Generally the best way to configure is "deny all and allow by exception" where all traffic is blocked by default and then rules are inserted to allow exceptions for specific traffic. You would also insert settings into the Access Control List.
What is the purpose of shielding and twisting in the UTP cables?
Shielding is not available for UTP cable; it would be for STP cable.
Both cable types use twists in the wire pairs. The twists help to eliminate crosstalk, which happens when a signal from one wire "bleeds" into another wire, causing interference.
Is URL and IP address are the same thing?
URL and IP address are not the same thing, iP is Internet Protocol, a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.
Uniform Resource Locator (URL) is a Uniform Resource Identifier (URI) that specifies where an identified resource is available and the mechanism for retrieving it. In popular usage and in many technical documents and verbal discussions it is often incorrectly used as a synonym for URI,
The best-known example of a URL is the "address" of a web page on the World Wide Web, e.g. http://www.harddiskdriverepair.com. and its ip is 216.65.21.62, on this ip there may be have many different domain[url].
How can you connect the PCs to the Wireless access point?
To set up a good wireless router access point, you will need internet service. Once you plug your internet cable into the appropriate spot on the router and install the software, you should be able to quickly follow the directions on the screen to setting up your home's wireless network.
What is the subnet address when ip address is 192.168.14.100?
The subnet depends on the IP addresses of the computers you are trying to connect. In most instances, a subnet of 255.255.255.0 is sufficient enough to get the job done. Subnets only really need to be configured if you are trying to connect multiple network IP distribtuions.
What is meant by single broadcast domain and single collision domain?
A collision domain is a section of a network where data packets can collide with one another when being sent on a shared medium or through repeaters, in particular, when using early versions of Ethernet. A network collision occurs when more than one device attempts to send a packet on a network segment at the same time. Collisions are resolved using carrier sense multiple access with collision detection in which the competing packets are discarded and re-sent one at a time. This becomes a source of inefficiency in the network.[1]
Only one device in the collision domain may transmit at any one time, and the other devices in the domain listen to the network in order to avoid data collisions. Because only one device may be transmitting at any one time, total network bandwidth is shared among all devices. Collisions also decrease network efficiency on a collision domain; if two devices transmit simultaneously, a collision occurs, and both devices must retransmit at a later time.
Collision domains are found in a hub environment where each host segment connects to a hub that represents only one collision domain and only one broadcast domain. Collision domains are also found in wireless networks such as Wi-Fi.
Modern wired networks use a network switch to eliminate collisions. By connecting each device directly to a port on the switch, either each port on a switch becomes its own collision domain (in the case of half duplex links) or the possibility of collisions is eliminated entirely in the case of full duplex links.
A broadcast domain is basically a VLAN. The broadcast domain defines how far a Layer-2 broadcast will propagate on the network, which is to say the broadcast will hit every device on the VLAN, or every device on the "subnet". Routers block broadcasts by design. If you need to leave your broadcast domain (get off your local subnet) then you jump up to layer 3 and go through a router to talk to machines on some other broadcast domain. The layer 2 broadcast will typically traverse all hubs, bridges and switches in a single VLAN. If you question was in the context of using a "single broadcast domain" just be careful not to do that for a relatively large network with several hundred or thousands of nodes, or the network performance and/or the end-station performance will suffer because of all the broadcast traffic.
Access to a LAN (a local-area network) is important for any networking, such as accessing the Internet, sharing data with other computers in the same house, sharing a printer, and many other useful functions.
However, a computer can be perfectly useful without Internet or local network access. For example, you could still use it to create software, digital art, text documents, manage your digital photos or music collection, and many other tasks.
What commands will show the route that packets take across the network?
tracert is the perfect function for you. E.x:
CMD
{
tracert 192.168.1.1
}
That will allow you to see where your data packet has traveled.
The 192.168.1.1 is only an example.
Hope this answer has helped you! :D
What are the two factors used to determine the different category UTP cable?
To test whether a cable deserves to be called, for example, "category 5e", an alternating current ("signal") is injected at different frequencies on each pair of wires, and measurements are made, how much energy crosses over to other pairs of wire. The less energy crosses over, the better. The higher cable categories use the same methods, but they have more stringent requirements.
To test whether a cable deserves to be called, for example, "category 5e", an alternating current ("signal") is injected at different frequencies on each pair of wires, and measurements are made, how much energy crosses over to other pairs of wire. The less energy crosses over, the better. The higher cable categories use the same methods, but they have more stringent requirements.
To test whether a cable deserves to be called, for example, "category 5e", an alternating current ("signal") is injected at different frequencies on each pair of wires, and measurements are made, how much energy crosses over to other pairs of wire. The less energy crosses over, the better. The higher cable categories use the same methods, but they have more stringent requirements.
To test whether a cable deserves to be called, for example, "category 5e", an alternating current ("signal") is injected at different frequencies on each pair of wires, and measurements are made, how much energy crosses over to other pairs of wire. The less energy crosses over, the better. The higher cable categories use the same methods, but they have more stringent requirements.
What is the max Ethernet speed for cat3?
The max speed is 100mb on Cat3 cable. We have it here and have hooked a fluke up to it as well as plugged a laptop directly in switch at a gig speed.
Which characteristic can be used to determine whether a route is an ultimate route?
The route includes an exit interface
What is the max distance of 802.11n router?
The max distance of a 802.11n router is approximately 100 feet. This distance is usually considerably shorter in most homes due to interference.
