Computer Networking

it collects the data and compare it with the set results. Depending on them the monitoring program gives an answer to the system administrator. For instance, that hosts are not working, the service is unavalable and so on.

All this helps to react on on different network troubles more quickly.

The TCP/IP model was adopted and condensed into 4 Layers.

1. Link layer ( Layer 1and 2 of the OSI model)
2. Internet Layer (Layer 3 of the OSI model)
3. Transport ( Layer 4, 5 and 6 of the OSI model)
4. Application ( Layer 7 of the OSI model)

http://en.wikipedia.org/wiki/TCP/IP_model#Link_Layer

Ethernet AUI

AUI cables have a D-type 15 pin connector. Pin assignments are as follows:Pin 1Control In circuit ShieldPin 2Control In circuit APin 3Data Out circuit APin 4Data In circuit ShieldPin 5Data In circuit APin 6Voltage CommonPin 9Control In circuit BPin 10Data Out circuit BPin 11Data Out circuit ShieldPin 12Data In circuit BPin 13Voltage PlusPin 14Voltage ShieldPins 7, 8 and 15 are not used.

It helps increasing wireless signal and area coverage.

Option#2 To strengthen the wireless signal source: CompTIA A+ Guide to Hardware by Jean Andrews (page 458)

Web server

Most organizations place their web servers in a perimeter network. A perimeter network is a special area located between the internal network's line of defense and the internet. This area allows you to place devices that are to be accessible to the public, while at the same time, protecting the private network from the public. Devices that are normally located in such networks include public web servers, e-mail servers, and FTP servers

An off sheet connector is an electrical design primitive. Off sheet connectors are used to connect nets across multiple schematic sheets that are descended from the same parent sheet symbol.

1) Client makes a UDP Broadcast to the server with a DHCPDiscover, or Discover packet.

2) DHCP offers to the client.

The server sends a DHCPOffer including other configuration parameters (DHCP Options) for the client per the servers configuration file

3) In response to the offer Client requests the server.

The client replies DHCPRequest, unicast to the server, requesting the offered address.

4)The server sends DHCPAck acknowledging the request which is the clients final permission to take the address as offered. Before sending the ack the server double checks that the offered address is still available, that the parameters match the clients request and (if so) marks the address taken.

A good reference for DHCP information is Droms and Lemon "The DHCP Handbook". BoydK

First, routing is the process a router performs when making forwarding decisions for each packet arriving at the gateway interface. To forward a packet to a destination network, the router requires a route to that network. If a route to a destination network does not exist on the router, the packet will be forwarded to the default gateway. Now, the destination network can be a number of routers or hops away from the default gateway. If the router has an entry for the network in its routing table, it would only indicate the next-hop router to which the packet is to be forwarded to and not the exact route to the final router. To sum it up, the routing process uses a routing table to map the destination address to the next hop and then forwards the packet to the next-hop address.

You can connect 2 PC`s without the use of a switch with a cross-over cable.

Layer 4 (Transport) is responsible for correction.

rsh and ssh are similar in that they can execute commands on remote systems. The main difference between the two (besides the actual TCP ports) is that rsh traffic is not encrypted and therefore a security risk; ssh traffic is encrypted.

The other main difference is that ssh is a secure replacement for telnet, whereas rsh can log into a remote system using the rlogin protocol, which is similar but not the same as telnet.

Balls are big, round and juicy, with a little bit of spice.

It depends on a router. Cheap ones can support couple dozens theoretically but it the real life it's about 10-12 in the same time connected computers. More expensive models can handle more connections.

yes, telecommunication is a subset of data communication as we know that data communication means exchange of data between two devices via some form of transmitting medium . data communication is considered local if a communication devices are in the same building or similarly restricted geographical area and is considered as remote , if the devices are farther apart .while the telecommunication means , which includes telephony, telegraphy, telephone means communication at a distance transmit the data , thus data can be transmitted by two ways local or remote between individuals ,local communication usually occurs between face to face, while remote communication takes place over a distance , thus we can say that telecommunication is a subset of data communication.....

use CMD :D

i am over thinking this question. not sure why. which one?

windows XP,

windows Server 2012 R2

windows 7

linux/unix

See the OSI layer.

The MAC address is the base addressing.

IP addresses ride on top of the MAC Addresses.

Link State Routing Protocols, such as OSPF and IS-IS, function by having routers share information about their local links and network topology. Each router builds a complete map of the network, allowing it to calculate the shortest path to each destination using algorithms like Dijkstra's. This approach enhances convergence speed and provides more accurate routing decisions compared to distance vector protocols, as each router has a complete view of the network. Additionally, Link State protocols can efficiently adapt to network changes, enabling dynamic routing updates.

No, there are many different speeds and other variables associated with routers. Most commonly, the speeds are 802.11, G, and N with variations of those. Those are listed in order of speed with N being the fastest. However, the speed will also depend on the device using the router. For example, if a laptop with a G receiver is on an N router, it will only get G speed.

Which brings me to my next point: There are also wireless and non-wireless routers. The above information only applies to wireless routes. As for wired routers, these are more similar. The only thing you will have to watch out for is the connection type your using. if you have dial-up internet or a 56k connection, you will need to buy the appropriate router. Same thing goes for a Ethernet or cable connection.

Another thing to look for is the number of ports available to use. If you are simple running 1 wire to 1 computer, all routers should have this function. However, if you are connecting multiple computers or sources to it, then you will need to make sure that there are enough ports to accomplish your needs

If you have a wireless printer then it will be added to the wireless network in the same manner as the computer nodes. The Wireless Access Point will assign it an IP address with DHCP protocol which is the default protocol to assign any harware on the wireless network. Then you open up your computer and add printer, it will automatically show up on the network. If you have a wired printer then you will need to add a print server. Same thing applies hook up the print server, install the disc and load the drivers. The print server will also receive an IP address by the default DHCP protocol and will allow your printer to show up on the network. Hope this helps.

You need to configure a static IP address on both items to enable them to talk to each other. I.E. set the PC to 192.168.1.2 and the printer to 192.168.1.3 Use 255.255.255.0 for the subnet mask. The gateway can be set to 192.168.1.1 although this setting is not needed for a crossover cable. The Problem is that I don't have the printer cable and the only way to attach the printer is via an ethernet crossover cable. the printer is from an office and was networked previously. I did a configuration print out of the printer and I set up the IP address already given to the printer on the printout. I gave my laptop the same IP address and subnet as the print out and set up a network using the network wizard but I still cannot see or access the printer.

how do you obtain network id from ip address

uninstall the windows in all the client systems and install the Linux OS in aall of them you are done. OR else uninstall the Linux OS from the server and install the windows server on it.you are done. very simple and straight answer na.... huh

a waiter