Flux Tools

Archive for October, 2009

A software testing job is what is known as a cake job. Basically it consists of sitting at a computer and testing software. Typically this is usually part of another job, but sometimes it is the only task that is assigned.

Why is it Necessary?

New software is written all the time. The software is always tested by the author but it is difficult to really get a feel for the software and to see if there are any bugs until it is used in actual applications.

A lot of software will work perfectly fine in a controlled environment but once it is put into play in a real time environment than the bugs pop up. It is important that the programmer knows what the bugs are and fixes them before the product hit’s the open market.

Virtual LAN’s are better known as VLAN’s in the networking community. Local Area Networks (LAN’s) by definition is a common group of devices withing the same broadcast domain. The broadcast domain with the featured group of network devices receives a copy of any frame sent by any device on that network. In other words when one device sends data, every other device will receive a copy of that data no matter if the devices wanted to receive it or not!

Without the use of VLAN’s a switch considers all of its port interfaces to be within the same broadcast domain or LAN by default. With VLANs, a switch can put some interfaces into one broadcast domain and some into another. There are many benefits separating one broadcast domain into multiple domains. By separating and creating multiple VLANs, you create smaller groups of devices on each particular LAN therefore cutting down on processing time considerably. Another reason includes better flexibility and management for the network administer due to being able to group devices by type, office department, etc.