Computer Networking

FTP is File Transfer Protocol. This is used for, say, if you have Norton (I use this reference a-lot for those of you who read my posts) and you want to upgrade, some people make a mistake and install over the old version. NEVER A GOOD IDEA! This can, and USUALLY WILL cause a software conflict. In this case, your software could be rendered useless. So, you would contact customer support. The easiest way is to "Chat With Technical Support". If they feel they can help you, they may ask you permission to access your computer. With the ability to access your computer, they can control your mouse, run programs, remove, and install. FTP allows you to open a specified port (usually mandated by the manufacturer) to allow access to your PC to fix this. Another use for FTP is for Online Gaming that use account's. With FTP, you are able to kick people with vulgar language, being racist, or breaking any other rule in the T&C's.

HTTP is "Hypertext Transfer Protocol" which is the directory that servers use to send information to your computer that you request.

If you are running Windows XP, you can click "Start", and open "My Documents". This view is called Windows Explorer, not to be confused with Internet Explorer. If you look at the top of the Explorer windows, just like in a web browser, you will notice something like "C://admin/my documents/music/goo goo dolls/song1.aiff" This is called a directory, it points to the location of a file.

If you are running Windows Server 2008 (or any other earlier version for that matter), the directories will begin with http:// instead of C://. C:// is the C drive (usually your main HDD) where as the http:// points to a directory within the servers of the web.

http is NOT to be confused with .htm, .html., xml, or .xhml which are file EXTENSIONS, and not DIRECTORIES.

Oh, but they do crash into each other from time to time. In which case both senders stop, wait for a random standoff time, then attempt to resend.

169.180.23.5

An adapter or adaptor is used to connect and convert attributes of one system to another that would otherwise not be compatible. A cable adaptor does this for different kinds of cables among others radio frequency cables or RF cables.

You would want to move to a Gigabit network.

This will require a switch capable of Gigabit speeds, network cabling capable of Gigabit speeds (Cat 5e for example), and a network interface on a computer that is also Gigabit rated.

Most modern switches are Gigabit rated (even inexpensive soho switches).

Frames

they are called pheripherals.

Traditionally, two switches can be connected together with a crossover cable.

A crossover cable should be used whenever two of the same network devices need to be connected together. e.g. Connecting a router to another router, a switch to another switch or a PC to another PC.

Using a crossover cable is not always necessary however. Most new network devices include a feature named Auto-MDIX (Medium Dependant Interface Crossover). Auto-MDIX detects what type of cable is connected and automatically changes its own configuration to enable data transmission to the other device. i.e. It does not matter if you use a straight through cable or crossover cable on Auto-MDIX enabled devices. Both will work.

Peer To Peer Network, A+ Guide To Hardware, page 466

HDLC

Absolutely. If you are running a Windows server, configure the DNS and DHCP Server settings in [Start] [Administrator Programs]. If you have a *nix server, configure the named and dhcpd daemons.

In either case, if you are running a single-server scenario, there are many advantages to running both DHCP and DNS on the same box. For example, if your local domain is set to something like "example.local", your PCs in the network would have names like accounting.example.local, server.example.local, and so on. By having both services configured together, you will be able to address your local network by the computer name ("accounting" or "ScottsDesktop", etc), without the "example.local".

If you are running Small Business Server, I think you *must* use both DNS and DHCP on that server, integrated into Active Directory.

I'll go to hellis Cisco in a Cisco router. What would the prompt look like for global configuration

its a switch

Many operating systems and schemes refer to them by different names:

"Security Groups" = Linux, Windows

"Organizational Units/Groups" = LDAP

"Domains" = Active Directory

Session Layer traced lost Packets.

A means accumulator , it is used to store 8 bit data not address because address is of 16 bits .

The best location is somewhere centrally located so that all areas of the house are covered. Obviously not always possible so take this into consideration the less walls the router has to travel through including floors the better the signal. Also electronics will mess the signal ex. tvs, microwaves, stereos etc.

It's easier to troubleshoot problems if the service technicians know what exists on their network, where, and how each node is connected to each other node. A network diagram provides that "Big Picture" allowing a technician to troubleshoot more quickly with a minimum amount of research.

A network diagram also helps new technicians get up to speed quickly. Instead of memorizing the network over time, a technician has a quick reference to turn to, allowing the new technician to be a productive part of the team more quickly.

Benchmark is the term for using a set of conditions to measure the performance of hardware in your network.

Type your answer here... yes, we can connect a nic to a nic. A nic is a Network Interface Card which has a unique MAC. When we connect two devices(say laptops) using a lan cable,we actually connect their nics.

by combing these layers the functionality is performed by a

single layer and overhead is reduced.The disadvantage is

more functions need to be performed by single layer

An SSH server is a daemon that listens for requests to log in using SSH from remote computers. SSH basically allows you to control a Linux or Unix computer just as if you were sitting at the physical machine.

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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.