Barclays Assistant Vice President Interview Questions and Answers

A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.

• Use the FROM instruction to specify the base image

• Use the RUN instruction to execute commands in the container

• Use the COPY instruction to copy files from the host to the container

• Use the CMD instruction to specify the command to run when the container starts

Write a yaml file for deployment kind

• Use 'kind: Deployment' to specify the type of deployment

• Include metadata like name and labels

• Define spec with containers, image, ports, etc.

Use a shell script to extract alphabets from an alphanumeric word.

• Use the tr command to delete all non-alphabetic characters from the word.

• Store the result in an array of strings for multiple words.

• Example: word='abc123'; result=$(echo $word | tr -d '0-9'); echo $result

Networking in Kubernetes cluster involves communication between pods and services.

• Kubernetes uses a flat networking model where each pod gets its own IP address.

• Pods can communicate with each other using their IP addresses.

• Services act as a stable endpoint for pods, allowing them to communicate with each other.

• Kubernetes networking plugins like Calico, Flannel, and Cilium help manage networking within the cluster.

Security in Kubernetes cluster involves implementing RBAC, network policies, pod security policies, and regular security audits.

• Implement Role-Based Access Control (RBAC) to control access to resources within the cluster

• Use network policies to restrict traffic between pods and namespaces

• Enforce Pod Security Policies to define security settings for pods

• Regularly conduct security audits and vulnerability assessments to i

DB offers a challenging work environment, opportunities for growth, and a strong reputation in the industry.

• DB offers a challenging work environment that will allow me to further develop my skills and knowledge.

• DB provides opportunities for growth and advancement within the company, which is important for my career development.

• DB has a strong reputation in the industry for its innovative solutions and commitment to exc...read more