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Local Area Network

Questions concerning the setting up, troubleshooting and operation of wired LANs used by businesses and other organizations

9,972 Questions

What is a default gateway?

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Asked by Wiki User

A gateway is a node (a router) on a computer network that serves as an access point to another network.

A Default Gateway is the node on the computer network that is chosen when the IP address does not belong to any other entities in the Routing Table. In homes, the gateway is usually the ISP-provided device that connects the user to the internet, such as a DSL or cable modem. In enterprises, however, the gateway is the node that routes the traffic from a workstation to another network segment. The default gateway is commonly used to be the node connecting the internal networks and the outside network (Internet). In such a situation, the gateway node could act as a proxy server and a firewall. The gateway is also associated with both a router, which uses headers and forwarding tables to determine where packets are sent, and a switch, which provides the actual path for the packet in and out of the gateway. In other words, it is an entry point and an exit point in a network.

Difference between peer to peer and client server?

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Asked by Wiki User

In a peer to peer network, all nodes are the same. In a client-server network, conversely, the server node maintains control over other nodes.

What logical topology is used in a classroom?

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Asked by Wiki User

Most classrooms rely on a star topology to connect their systems together.

Ping stands for?

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Asked by Wiki User

Pingt stands for a name such as black people call white people cracker or something and ping just a discriminating name based on race

Can you learn networking through online?

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Asked by Wiki User

Set up your own network at home by getting the help from networking books or a website. For most people, this is the most useful method to learn networking with hands-on experience.

What is the difference between protocol and service interface in ISO-OSI 7 layer model?

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Asked by Wiki User

Protocol is the special set of rules that end points in a telecommunication connection use when they communicate. In other words Protocol is an agreed-upon format for transmitting data between two devices. The protocol determines the following: * the type of error checking to be used * data compression method, if any * how the sending device will indicate that it has finished sending a message * how the receiving device will indicate that it has received a message Service is a program, routine, or process that performs a specific system function to support other programs, particularly at a low (close to the hardware) level

What is client server Architecture?

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Asked by Wiki User

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Client server architecture refers to a network architecture whereby every computer on the network is either a server or a client.

Explain the two main reason for using layered protocol architecture for network communication?

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Asked by Wiki User

1. Protocol layering is a common technique to simplify networking designs by dividing them into functional layers, and assigning protocols to perform each layer's task.

For example, it is common to separate the functions of data delivery and connection management into separate layers, and therefore separate protocols. Thus, one protocol is designed to perform data delivery, and another protocol, layered above the first, performs connection management. The data delivery protocol is fairly simple and knows nothing of connection management. The connection management protocol is also fairly simple, since it doesn't need to concern itself with data delivery.

2. Protocol layering produces simple protocols, each with a few well defined tasks. These protocols can then be assembled into a useful whole. Individual protocols can also be removed or replaced as needed for particular applications.

The most important layered protocol designs are the Internets original DoD model, and the OSI Seven Layer Model. The modern Internet represents a fusion of both models.

1. Protocol layering is a common technique to simplify networking designs by dividing them into functional layers, and assigning protocols to perform each layer's task.

For example, it is common to separate the functions of data delivery and connection management into separate layers, and therefore separate protocols. Thus, one protocol is designed to perform data delivery, and another protocol, layered above the first, performs connection management. The data delivery protocol is fairly simple and knows nothing of connection management. The connection management protocol is also fairly simple, since it doesn't need to concern itself with data delivery.

2. Protocol layering produces simple protocols, each with a few well defined tasks. These protocols can then be assembled into a useful whole. Individual protocols can also be removed or replaced as needed for particular applications.

The most important layered protocol designs are the Internets original DoD model, and the OSI Seven Layer Model. The modern Internet represents a fusion of both models.

What arp table entries are created when a client makes an arp request that cannot be satisfied by data already in the arp?

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Asked by Wiki User

Dynamic ARP table entries are created whne a client makes an ARP request that cannot be satisfied by data already in the ARP table.

What do ports 135 and 137 information tell an attacker?

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Asked by Wiki User

Ports 135 and ports 137 tell an attacker that the user has a Windows OS system. These ports are used by hackers.

What are punch cards?

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Asked by Kgadu

Punch cards are a very old way of programming a computer. The punch card would have long rows of numbers, representing certain instructions. You would punch a hole through the number corresponding to the instruction you wanted to execute. You would then feed the card into the computer, and it would run the program.

What is the other name for a lan card?

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Asked by Wiki User

NIC - Network Interface card (sometimes also called a network adaptor card).

What is an armored wire?

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Asked by Wiki User

A cable with a steel sheath.

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Armoured cables are cables designed to by laid underground. An armoured cable is a cable whose conductors are protected from mechanical damage by an outer layer of steel tapes or wire. The armour itself is protected against corrosion by an outer waterproof layer. The steel tape or wire is wound around the cable to maintain its flexibility.

Advantages of LAN or WLAN?

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Asked by Wiki User

LAN is wired WLAN is wireless

Which principle explains how fiber optics can transmit data in the form of light pulses over large distances with little loss in signal strength?

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Asked by Jamar39

Optical fibers transmit signals over long distances by a process called total internal reflection. In this process, optical fibers bend light by bouncing pulses of light along their inner walls, which enables the pulses of light to travel quickly over long distances.

For more information, refer to the related link below.

What is the maximum transmission speed for fiber optic?

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Asked by Wiki User

The maximum transmission speed for fiber optic is about 186000 miles per second. Wires are a bit slower because of transmission line effects

How do you prevent signal interference with other electrical devices?

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Asked by Wiki User

It depends on the type of interference, but most shielded cables are used in a copper cable setup. You could also use fiber optic cable if concerned about electrical devices but it might prove too expensive.

Why routing protocol is needed?

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Asked by Wiki User

Routing protocol is used to dynamically learn routing information so routers know where to send packets. The only other option is to manually define all routers within a network which would be very impractical.

Is internet a lan or a wan?

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Asked by Wiki User

The Internet is a WAN. It "INTERconnects NETworks" over the widest area possible, the Earth.

Why silicon diode require 0.7v drop across it before it start conducting?

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Asked by Wiki User

A: Actually it begins to conduct almost as soon as there available current. but the current is such a low value that it is considered not to be conducting at all. And the 0.7 volts drop is a chosen value to indicate that the diode is fully conducting and the voltage drop across is .7 volts there about. It can have any value lower then that and it all depends on the current flowing at the time.