--- title: "Vishnu Mohan (@vishnumohanan) | Hashnode" description: "A human in transit 馃殌. Read the latest articles by Vishnu Mohan on Hashnode." url: "https://hashnode.com/@vishnumohanan" --- @vishnumohanan # Vishnu Mohan @vishnumohanan 路 Joined December 2022 A human in transit 馃殌 [Website](https://vishnuvw.xyz/) ### [The App of Apps Pattern in ArgoCD](https://vishnumohanan.hashnode.dev/the-app-of-apps-pattern-in-argocd?utm_source=hashnode&utm_medium=feed) The App of Apps pattern in ArgoCD is a deployment strategy where a "parent" Application manages one or more "child" Applications, enabling hierarchical, declarative GitOps management of Kubernetes clusters. 9 min read 路 [vishnumohanan.hashnode.dev](https://vishnumohanan.hashnode.dev/the-app-of-apps-pattern-in-argocd?utm_source=hashnode&utm_medium=feed) [Apr 19](https://hashnode.com/posts/the-app-of-apps-pattern-in-argocd/69e4802cee84f66e9426b99f) ### [How I Passed My CKA Exam](https://vishnumohanan.hashnode.dev/how-i-passed-my-cka-exam?utm_source=hashnode&utm_medium=feed) Detailed look into my preparation for CKA 6 min read 路 [vishnumohanan.hashnode.dev](https://vishnumohanan.hashnode.dev/how-i-passed-my-cka-exam?utm_source=hashnode&utm_medium=feed) [Nov 8, 2025](https://hashnode.com/posts/how-i-passed-my-cka-exam/690f067f17ad69c2bef96a17) ### [Network Switches](https://vishnumohanan.hashnode.dev/network-switches?utm_source=hashnode&utm_medium=feed) Understand switches in networking models 6 min read 路 [vishnumohanan.hashnode.dev](https://vishnumohanan.hashnode.dev/network-switches?utm_source=hashnode&utm_medium=feed) [Aug 16, 2025](https://hashnode.com/posts/network-switches/68a082bb03751cfdb0b23a13) ### [CKA: Essential Shell聽commands](https://vishnumohanan.hashnode.dev/cka-essential-shell-commands?utm_source=hashnode&utm_medium=feed) Here I've curated the most essential shell commands for CKA 5 min read 路 [vishnumohanan.hashnode.dev](https://vishnumohanan.hashnode.dev/cka-essential-shell-commands?utm_source=hashnode&utm_medium=feed) [Aug 12, 2025](https://hashnode.com/posts/cka-essential-shell-commands/689ad1ba2230a98730ab7809) ### [The Bottleneck of DNS](https://vishnumohanan.hashnode.dev/the-bottleneck-of-dns?utm_source=hashnode&utm_medium=feed) A look at how DNS outages create chaos across the internet 3 min read 路 [vishnumohanan.hashnode.dev](https://vishnumohanan.hashnode.dev/the-bottleneck-of-dns?utm_source=hashnode&utm_medium=feed) [Aug 11, 2025](https://hashnode.com/posts/the-bottleneck-of-dns/6899acf6315ddc0677481a28)