There are dozens of network performance monitoring tools in the market with different price points for all of them. Working with Unisys, you should be familiar with at least several top players in the market in case the interviewer asks if you used them, and which one you consider yourself an expert. Before we jump into possible questions and responses, let's look at the top 5 in the market right now. 1. Solar Winds, 2. OpManager, 3. PRTG Network Monitor, 4. Zabbix, and 5. Nagios XI. Theoretically, most of these tools work in a similar fashion. They provide behavioral analytics, hybrid visibility, dependency mapping, data flow collection, and what-if-analysis among other things.

An interviewer will want to know how familiar you are with the top brands and which ones you are most familiar with. You can start with some facts surrounding the basics on how these tools work, with examples of the ones you used, and your opinion on their performance based on experience from the environments you worked in. Next, you should hone in on one or two performance tools that you know well and talk about why you consider yourself an expert in these tools. Great examples to use are how you were able to optimize the performance of your employer's client networks and save them money in the process.