Internet Technologies - Important Terms for Bank Exams
As per the ongoing exams and paper patterns of exams which have already happened this year, questions are being asked based on modern computing technologies; very rarely, if not at all, will there be a question on generation of computers!
Today’s topic is internet, and I’m sure all of you know the concept of Internet, the LANs and MANs and topologies etc., so my objective is to introduce some new terms and their meanings…
1. Intranet : is a network of computers within an organization.
2. Extranet : is a network of computers between some related organizations.
3. Gateway : is a particular point in a network that acts as an entrance to another network. For example, the ‘payment gateway’, if you’ve done any internet payment transaction you would have seen that from the merchant’s site you are taken to a payment gateway, from where you are then taken to your bank’s net banking site.
4. Firewall : is a program in charge of rejecting unwanted incoming connection requests. A server with a firewall will keep other computers form connecting to the server. It is like a boundary wall to keep intruders at bay.
5. DNS : Domain name server – is a program which deals with computer addresses. You can look at it as a telephone directory, but for the Internet; it translates user friendly computer hostnames into IP addresses.
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