Computer Networking

Loaded question. This depends on the Cisco switch and it's a very technically detailed answer - unique to every switch model. The short answer is that switches that are "modular" allow you to have routing functionality inside one or more "modules" or "cards" of the switch. Some switches allow routing to occur on each "line card", other solution allow a switch to share a single "card" to do all the routing for the entire switch. Routing and switching can be configured via a single terminal interface session - known as "native", whereas some switches separate the routing terminal and switching terminal - known as "hybrid". If that isn't enough info, go to cisco.com and use their search engine to find the "installation guides" of your model.

What it is if you have a modem they should have a reset button or also called a lag switch or standby button. You jus press that down and it willstandby then when you press it again the connection should come back on but if held in long enough it could lagg you out or lose connection

The OSI model encompasses all of the TCP/IP sub-protocols plus several other protocols that are not part of TCP/IP. These would include IPX/SPX, NetBEUI, Appletalk, and other proprietary protocols that are not part of the TCP/IP model.

Anytime static data is stored to speed up access to it, it is using a method called caching. Usually this is called a proxy cache or a web cache.

Was your router installed and configured by your Internet service provider ?

Does it act as DHCP server ? Meaning does it assign IP addresses to connecting clients ?

Is the network card on your Computer working ? In command mode (Microsoft windows) if you type ipconfig /all what do you get ?

Is your computer network card configured to automatically obtain an IP address or does it have a static address ?

If your network card has a static IP address, you should check that it is in the range of the DHCP server and that they both have the same subnet mask. You should change selection in propeties to automatically obtain IP address. Check then if you see your router. Afterwards you can reassign a static IP address in the appropriate range or change the range on the router.

Does your computer see other wifi in range but not yours ?

Can you connect to your router from another computer ? In that case, you should compare the settings of the network connection of both PC's. And settings of the cards (is the radio option on ?)

Is the location of the router adequate to avoid obstruction or interferences ? Both reduce the range of wifi network equipment. Obstructions are walls, furnitures ... Interferences are microwaves, cordless phones ...

There are mainly three types of transmission modes : 1) Simplex : Information can flow only in one direction 2) Half Duplex : Information can flow in both direction but only 1 at a time can send and 1 can receive. 3) Full Duplex : Information can flow in both direction and both can send and rceive at a same time.

The ServerSocket bind to a local address and listens for new connections

When a new connection arrives and the socket is managed by an IOManager

a new Socket is created from the socket prototype provided on construction.

You can also call accept() directly. The socket will then block until

a new connection appears.

Whats is the relationship between a sub network a node?

Improved Web Sharing and Information Technology

nslookup jsmith

Electromagnetic waves, kind of like radio waves or microwaves.

Paul baran was one of the three inventors of packet-switched networks, along with Donald Davies and Leonard Kleinrock.

its for email

you could email a file and therefor share it with a friend.

so yes... but that wont score you any marks in an exam.

your ISP should provide you with a new one.

if your out of contract just go to another provider that does.

Yes, fiber optics work with light pulses rather that electrical charges. One of the main benefits are that there is no EMI(electromagnetic interference) since magnitism does not affect light. Thus there is no problem with laying electrical cables with fiber optic cables.

Coaxial cable is cheaper and easier to install and in most cases that's all. To call it superior is not correct because twisted-pair is much better in many cases even so it has its disadvantages.

because MIME is not a protocol :) it is a standard that increase the format or services of e-mail .

DNS load balancing is defined to be spreading the load of people on a certain website accross multiple survers if one does not suffice. One can find more information about DNS load balancing on sites like Zytrax and Splux.

The Secure File Transport Protocol (SFTP, also known as SSH or Secure Shell) typically is run on port 22.

Since Microsoft stopped development on Windows 2000, you cannot expect any new features for this version. Anyways, the remote desktop function was, if I am right, introduced with IIS ( Microsoft Server Software ) and W2k only has PWS, a other version of the same software (IIS was, I think, a complete rewrite).

Console cable of pbx system, it is a cable that will display the digital signal into monitor or screen or It is data cable that shows user interface for system configuration.

Source Port