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Static versus dynamic routing.
A router requires a ROUTE to a remote network if it is to send traffic there.
A route specifies how the network can be reached.
Routes are stored in a route table.
The route table can consist of static, dynamic or a combination of routes.
We can examine the route table by issuing the show ip route command.
In static...
External ports and interfaces
Routers can be purchased with different ports and interfaces.
Typical interfaces include:-
-Console port
-Auxiliary port
-Serial port
The CONSOLE port
-Starting point for configuration.
-Allows terminal connection (hyperTerminal in windows) via a PC and a cable.
-Typically basics like IP addresses will be assigned...
Network devices
There are three key devices you need to be aware of in order to understand internet-working:--HUB
Used as the central connection point within the star topology.-SWITCH
Used to reduce collision domains within a star network. -ROUTER
Used to link network segments together
HUB
All devices on a star network plug into the hub.
Hence it...
Memory Usage.
By default more memory is given to the running of local programs.
This is typical for a workstation, If the system shares a lot of data on a network it may offer better performance if more memory is given to the system cache.
This allows more files to be cached in RAM meaning the system can share data faster.Virtual Memory.
Virtual...
Task Manager.
The applications tab is useful if a program has crashed we can end and tasks that are listed as ‘not responding’
Processes show the software running at present and the resources they are using.
The only process that should be near 100% is the system idle process.
The svchost is running more than once, This is normal as svchost looks...
Performance Monitoring.
One of the most common complaints from end user is “my computer is running slowly”.
Since speed is highly speculative it can be a difficult thing to trouble shoot.
It is therefore important that performance monitoring be carried out in a structured way rather than on an ad-hoc basis.
Monitoring Strategy.
When a System is...
1. Keep your PC up to date
One of the best things you can do to protect your PC is also one of the easiest: Make sure you are set up to get automatic updates from Microsoft. If you use Windows and other Microsoft software, such as Microsoft Office or Windows Live Essentials, then you should use the Microsoft Update service. You'll also get notices...
The easiest, least expensive way to connect the computers in your home is to use a wireless network, which uses radio waves instead of wires. The absence of physical wires makes this kind of network very flexible. For example, you can move a laptop from room to room without fiddling with network cables and without losing your connection. The...
Ethernet and wireless networks each have advantages and disadvantages; depending on your needs, one may serve you better than the other. Wired networks provide users with plenty of security and the ability to move lots of data very quickly. Wired networks are typically faster than wireless networks, and they can be very affordable. However, the...
The two most popular home network types are wireless and Ethernet networks. In both of these types, the router does most of the work by directing the traffic between the connected devices. By connecting a router to your dial-up, DSL or cable modem, you can also allow multiple computers to share one connection to the Internet.
If you're going to...
If you have multiple computers in your home, networking them is a great idea! There are several big advantages to setting up an in-home network, if one of the computers has a printer attached, then the other computer can print to it over the network.
If one of the computers has certain files on it, someone on the other computer can access those...
Computer Cleaning
Computer cleaning is the practice of physically cleaning the interior, and exterior, of a computer including the removal of dust and debris from cooling fans, power supplies, and hardware components.
Dust may accumulate as a result of air cooling. regular Computer cleaning may be required to prevent short circuits and overheating...
it is important that you run a disk defragmentation and a disk clean up every week or every month depending on how much you use your computer,
to do this simply follow the simple instructions below
windows xp
disc cleanup
•Click Start, point to All Programs, point to Accessories, point to System Tools, and then click Disk Cleanup.
disc defragment...
