Exam
CKA
Home › CKA practice tasks › cri-dockerd Setup
CKA · Troubleshooting
cri-dockerd Setup
Set up cri-dockerd on this node. Step 1: Install the Debian package located at ~/cri-dockerd.deb using dpkg. Step 2: Enable and start the cri-docker service.
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The task
Task
Set up cri-dockerd on this node.
Step 1: Install the Debian package located at ~/cri-dockerd.deb using dpkg.
Step 2: Enable and start the cri-docker service.
Step 3: Create a sysctl configuration file and apply it with the following parameters:
net.bridge.bridge-nf-call-iptables = 1
net.ipv6.conf.all.forwarding = 1
net.ipv4.ip_forward = 1
net.netfilter.nf_conntrack_max = 131072What this tests
Diagnose failing nodes, control-plane components, the kubelet, and broken cluster networking. On the CKA exam, Troubleshooting tasks are graded purely on what you build in the cluster — not multiple choice — so the only way to get faster is to do them on a real cluster against a clock.
Practice it for real
prepium.sh drops you into your own isolated Kubernetes cluster in the browser — no install, no credit card. You solve the task in a real terminal, hit validate, and a programmatic checker scores exactly what you got right and wrong (with partial credit). The canonical solution unlocks after you attempt it, so you learn the fast, exam-ready way to do it.