Killercoda offers free environments (based on Ubuntu) with various tools for beginners to try hands-on. It also has the Kubernetes playground which provides control plane server access for 1 hour. In which we can try to practice hands-on with control plane components. Because sometimes we are dependent on training platforms to try the control plane (or kubeadm) practice, and killercoda comes handy as a free... - Source: dev.to / about 1 year ago

Maybe check out the canonical page instead: https://killercoda.com. Source: about 1 year ago

Https://killercoda.com/ has a few scenarios. Source: over 1 year ago

I think killercoda is pretty cool, they don't have a lot of scenarios yet but it does create them like killer.sh does. You can even submit scenarios! Source: over 1 year ago

Killercoda has free labs, I recommend doing those. And there are a few other sites offering paid practice exams or even question dumps, but some of those seem sketchy. I'd personally stick to KodeKloud, killer.sh and Killercoda. Source: over 1 year ago

I'm using the port 2 RJ45 serial port on the Click, and that's connected to a serial to USB converter for the receiving machine. On the receiving machine I opened up this program and matched the settings exactly to how they're configured on the Click PLC send command. I played around with different handshaking and I'm not receiving any data at all from the PLC. Source: over 1 year ago

I send 10000 bytes of data over COM port. First I recorded with the third-party terminal. I used Bray++ and after receiving the data I don't see any major change in memory usage. It is around 3.3MB before and after. Now on the other hand when I use my version it goes from like 44MB to 47MB! A massive increase in memory usage. When I clear the string it returns to around 44MB. I have no idea what could be causing... Source: over 1 year ago