WorkSpan Senior Software Engineer Interview Questions and Answers

Check if a string is a palindrome

• Iterate through each string in the array

• For each string, compare characters from start and end to check if it's a palindrome

• Return true if all strings are palindromes, false otherwise

Various automation frameworks like keyword-driven, data-driven, hybrid, and behavior-driven are commonly used in software testing.

• Keyword-driven framework: Tests are written using keywords and actions.

• Data-driven framework: Tests are driven by data sets.

• Hybrid framework: Combination of multiple frameworks.

• Behavior-driven framework: Focuses on behavior of the system.

• Page Object Model (POM): Organizes code by separating

Git revert is used to undo changes made in a commit by creating a new commit that undoes the changes.

• Git revert is used to undo changes made in a specific commit without altering the commit history.

• It creates a new commit that undoes the changes introduced by the specified commit.

• Git revert is useful for reverting changes without losing the commit history or affecting other team members' work.

• Example: git revert

Jenkins node is a machine that executes tasks as part of a Jenkins build process.

• Jenkins nodes can be physical machines or virtual machines.

• Nodes can be configured to run specific types of jobs or tasks.

• Nodes help distribute workload and improve efficiency in Jenkins pipelines.

Nodes can be named based on their functionality, purpose, or position in a hierarchy.

• Name based on functionality (e.g. loginNode, paymentNode)

• Name based on purpose (e.g. validationNode, processingNode)

• Name based on position in hierarchy (e.g. parentNode, childNode)

Jenkins has a wide range of plugins for various functionalities.

• Pipeline plugins (e.g. Pipeline, Multibranch Pipeline)

• SCM plugins (e.g. Git, SVN)

• Build and test plugins (e.g. Maven, JUnit)

• Notification plugins (e.g. Email, Slack)

• Monitoring plugins (e.g. Prometheus, Grafana)

Jenkins library is a collection of reusable code that can be shared across multiple Jenkins pipelines.

• Jenkins library allows for code reuse and sharing across pipelines

• It helps in maintaining consistency and reducing duplication of code

• Libraries can be stored in version control systems like Git and referenced in Jenkins pipelines

Integrating other tools to Jenkins involves using plugins and configuring build pipelines.

• Install the necessary plugins for the tools you want to integrate with Jenkins

• Configure the tools in Jenkins global configuration settings

• Create build pipelines that include steps for interacting with the integrated tools

• Use Jenkins API to automate interactions with external tools

Docker is a containerization platform for running applications in isolated environments, while Docker Swarm is a tool for orchestrating multiple Docker containers across multiple hosts.

• Docker is used for creating and managing containers, while Docker Swarm is used for managing multiple containers across multiple hosts.

• Docker is suitable for single host deployments, while Docker Swarm is suitable for multi-host deployme...read more

K8s is a container orchestration tool while Docker Swarm is a clustering and scheduling tool for Docker containers.

• K8s is more widely used and has a larger community support compared to Docker Swarm.

• K8s supports more advanced features like auto-scaling, self-healing, and rolling updates.

• Docker Swarm is easier to set up and manage for smaller scale deployments.

• K8s uses declarative configuration while Docker Swarm uses i...read more

Git hooks are scripts that run automatically before or after certain Git commands are executed.

• Git hooks are customizable scripts that can be triggered by specific Git events.

• They can be used to enforce coding standards, run tests, or automate deployment processes.

• Examples of Git hooks include pre-commit, post-commit, pre-push, and post-merge hooks.

HTTPS is a secure communication protocol used for secure communication over the internet. SSH cloning is a method of cloning a repository using the SSH protocol.

• HTTPS stands for Hypertext Transfer Protocol Secure and is used to secure communication over the internet.

• It encrypts the data being transmitted between the client and the server, providing a secure connection.

• SSH cloning is a method of cloning a Git repository...read more