DNS cache

- One important component to DNS name resolution…is the DNS cache.…Now this is an area of short-term local memory…where a DNS client and or the DNS server will store…the results of any recent name resolution queries.…So in order to take a look at this…I want to go ahead and jump onto…one of my DNS servers member one.…Now a couple of videos ago I talked about recursive querying…when you go to look up a website out on the internet.…

Alright and I went ahead and pulled up a browser…and I'll actually do that here.…Pull up the browser and it goes to www.LinkedIn.com…And I went through the whole process…of how it got that answer and then displays this up…on the screen.…Let me go ahead and close this.…Because I want to explain that there was one piece…that I didn't talk about in that other video.…And that is before the answer is given to the client…to put the website up on the screen…the first thing the server does is puts the information…in its local cache.…

So that if another client comes in with the same request…it doesn't have to utilize the resources…