#Gradle

#V7 #2025, #Core Language, #DevOps

Last updated    - V7 (19-Dec-2025)

Key Concepts

S.No	Topic	Sub-Topics
1	Introduction to Gradle	What is Gradle, History, Benefits, Gradle vs Maven, Use cases
2	Gradle Architecture	Build lifecycle, Gradle daemon, Project vs Task, Build cache, Plugin system
3	Installing Gradle	Manual installation, SDKMAN, Verify installation, Environment variables, Gradle wrapper
4	Gradle Wrapper	What is Gradle wrapper, Advantages, Wrapper scripts, Version management, Usage in projects
5	Gradle Build Scripts	build.gradle file, Groovy DSL, Kotlin DSL, Task definitions, Script structure
6	Gradle Tasks	What is a task, Default tasks, Custom tasks, Task dependencies, Task lifecycle
7	Project Structure	Single-project build, Multi-project build, Settings.gradle, Source sets, Directory conventions
8	Dependency Management	Adding dependencies, Configuration, Dependency types, Repositories, Transitive dependencies
9	Gradle Plugins	Applying plugins, Built-in plugins, Third-party plugins, Custom plugins, Plugin DSL
10	Java Project Setup	Java plugin, Source sets, Compiling Java code, Running tests, JAR packaging
11	Groovy & Kotlin Projects	Groovy plugin, Kotlin plugin, Compiling, Testing, Packaging
12	Testing in Gradle	Unit testing, Test tasks, JUnit integration, Test reports, Test logging
13	Gradle Build Lifecycle	Initialization phase, Configuration phase, Execution phase, Task graph, Lifecycle hooks
14	Incremental Builds	What is incremental build, Inputs & outputs, Up-to-date checks, Avoiding unnecessary tasks, Build caching
15	Multi-Project Builds	Settings.gradle, Subprojects, Project dependencies, Task dependencies, Multi-project best practices
16	Gradle Properties	gradle.properties file, System properties, Project properties, Environment variables, Overriding properties
17	Custom Tasks	Task creation, Task type, doLast/doFirst, Inputs and outputs, Task dependencies
18	Gradle Build Scans	Enabling build scans, Publishing build scans, Analyzing performance, Task execution insights, Best practices
19	Gradle Profiles & Environments	Environment-specific properties, Conditional tasks, Profiles in Gradle, Build variants, Configurations
20	Dependency Management Strategies	Dependency constraints, Version conflict resolution, Dynamic versions, Locking dependencies, BOM usage
21	Publishing Artifacts	Maven plugin, Ivy plugin, Publishing to local repo, Publishing to remote repo, Metadata configuration
22	Gradle Caching	Build cache, Local cache, Remote cache, Configuring cache, Cache best practices
23	Continuous Integration	Integrating with Jenkins, GitLab CI/CD, GitHub Actions, Pipeline configuration, Automating builds
24	Code Quality Plugins	Checkstyle, PMD, SpotBugs, SonarQube integration, Enforcing code standards
25	Gradle Logging & Debugging	Logging levels, --info, --debug, --scan, Troubleshooting build failures
26	Dependency Insight & Reports	Dependency report, Task report, Insight report, Resolving conflicts, Visualizing dependencies
27	Gradle Kotlin DSL	Difference from Groovy DSL, build.gradle.kts, Type safety, Auto-completion, Migration from Groovy
28	Advanced Gradle Scripting	Custom plugins, Extending tasks, Conditional logic, Loops in scripts, Reusable script snippets
29	Performance Optimization	Parallel execution, Configuration on demand, Avoid unnecessary tasks, Dependency optimization, Profiling builds
30	Hands-on Project	Create Java project, Add dependencies, Configure plugins, Run tests, Package and publish artifact

Interview question

Basic Level

1. What is Gradle and why is it used?
2. Difference between Gradle and Maven.
3. Benefits of using Gradle.
4. What are build scripts in Gradle?
5. What is a Gradle wrapper?
6. How to install Gradle manually?
7. How to verify Gradle installation?
8. What is the role of build.gradle file?
9. What are tasks in Gradle?
10. How to run a task in Gradle?
11. What is the difference between project and task?
12. How to create a simple Java project with Gradle?
13. What is the purpose of settings.gradle?
14. What are Gradle plugins?
15. How to apply a plugin in Gradle?
16. What is dependency management in Gradle?
17. How to add dependencies in Gradle?
18. What are repositories in Gradle?
19. How to list available tasks?
20. What is Gradle daemon?
21. Difference between incremental and full builds.
22. What are default tasks in Gradle?
23. How to clean a project in Gradle?
24. How to build a JAR using Gradle?
25. What is Gradle DSL?

---

Intermediate Level

1. What is a multi-project build?
2. Difference between single-project and multi-project builds.
3. What are source sets?
4. How to configure tasks dependencies?
5. How to create custom tasks?
6. What is doLast and doFirst in tasks?
7. How to pass parameters to tasks?
8. What are build phases in Gradle?
9. What is the build lifecycle?
10. How to configure task inputs and outputs?
11. How to use Gradle properties?
12. Difference between project properties and system properties.
13. What are configurations in Gradle?
14. How to resolve dependency conflicts?
15. How to generate dependency reports?
16. How to use Gradle cache?
17. Difference between local and remote cache.
18. How to use Gradle wrapper in CI/CD?
19. How to execute Gradle tasks in parallel?
20. How to skip tasks during build?
21. How to run Gradle in offline mode?
22. What are Gradle profiles?
23. How to handle environment-specific configurations?
24. How to integrate Gradle with Git?
25. How to debug Gradle builds?

---

Advanced Level

1. What is Gradle Kotlin DSL?
2. Difference between Groovy DSL and Kotlin DSL.
3. How to create multi-language projects?
4. How to create custom Gradle plugins?
5. Difference between script plugins and binary plugins.
6. How to configure versioning in Gradle?
7. How to implement CI/CD with Gradle?
8. How to integrate Gradle with Jenkins?
9. How to integrate Gradle with GitLab CI/CD?
10. How to integrate Gradle with GitHub Actions?
11. How to publish artifacts to Maven repository?
12. How to publish artifacts to Ivy repository?
13. How to implement build scans?
14. How to use Gradle Enterprise?
15. How to profile Gradle builds?
16. How to implement code quality tools like Checkstyle, PMD, SpotBugs?
17. How to configure automated tests in Gradle?
18. How to run unit tests in Gradle?
19. How to run integration tests in Gradle?
20. How to generate test reports?
21. How to configure multi-module dependency resolution?
22. How to use Gradle for Android projects?
23. How to implement version conflict resolution?
24. How to customize build logic using init scripts?
25. How to optimize build performance?

---

Expert Level

1. How to implement Gradle caching strategies?
2. How to implement incremental builds efficiently?
3. How to use Gradle composite builds?
4. How to use Gradle with Docker builds?
5. How to implement continuous delivery pipelines with Gradle?
6. How to secure build artifacts?
7. How to handle large multi-project builds?
8. How to integrate Gradle with Spring Boot projects?
9. How to manage plugin versions in Gradle?
10. How to handle transitive dependencies in complex projects?
11. How to implement dependency locking?
12. How to analyze Gradle build scans for optimization?
13. How to implement modular monorepo with Gradle?
14. How to migrate Maven builds to Gradle?
15. How to implement task avoidance techniques?
16. How to implement lazy task configuration?
17. How to handle parallel builds in CI environments?
18. How to debug complex multi-project builds?
19. How to integrate Gradle with SonarQube?
20. How to implement automated release pipelines?
21. How to use Gradle for Kotlin Multiplatform projects?
22. How to implement custom reporting in Gradle?
23. How to handle dynamic dependencies effectively?
24. How to monitor Gradle builds in production CI/CD?
25. Best practices for large-scale Gradle project management.

Related Topics

#JFrog

Last updated    - V7 (19-Dec-2025)

Key Concepts

S.No	Topic	Sub-Topics
1	Introduction to JFrog	Overview of JFrog, JFrog products, Importance in DevOps, CI/CD integration, Benefits for artifact management
2	JFrog Artifactory Basics	Installing Artifactory, Artifactory UI overview, Repository types, Users and permissions, Basic configuration
3	Repositories in Artifactory	Local repositories, Remote repositories, Virtual repositories, Repository layouts, Best practices
4	Package Types	Maven, Gradle, npm, Docker, NuGet
5	Managing Artifacts	Uploading artifacts, Downloading artifacts, Artifact metadata, Versioning, Deleting artifacts
6	JFrog CLI	Installing JFrog CLI, Basic commands, Upload/download, Environment variables, Automation scripts
7	Build Integration	CI/CD tools integration, Jenkins integration, TeamCity integration, Bamboo integration, Pipelines overview
8	Docker & JFrog	Docker repository setup, Pushing Docker images, Pulling Docker images, Tagging images, Docker build integration
9	Security Management	Users and groups, Permissions, Access tokens, API keys, LDAP integration
10	Replication	Local replication, Remote replication, Event-based replication, Cron replication, Multi-site setup
11	JFrog Pipelines Basics	Pipelines overview, Setting up pipelines, Stages and steps, Resources, Integrations
12	Pipelines Advanced	Triggers, Conditional execution, Variables, Secrets management, Notifications
13	Repository Management Automation	REST APIs, JFrog CLI scripting, Automated cleanup, Scheduled tasks, Repository templates
14	Artifact Promotion	Promotion concepts, Manual promotion, Automated promotion, Using REST API, Best practices
15	Metadata & Properties	Artifact properties, Using custom metadata, Queries with properties, Build info metadata, Automation
16	Integrating JFrog with Git	Git basics, Linking repos, Webhooks, CI/CD triggers, Best practices
17	JFrog Xray Basics	Introduction to Xray, Scanning artifacts, Security vulnerabilities, License compliance, Policies and Watches
18	Xray Advanced	Custom policies, Detailed reports, Integration with Artifactory, Automation, Alerts & notifications
19	Monitoring & Logs	System logs, Audit logs, Health monitoring, Metrics dashboard, Alerts
20	High Availability Setup	HA architecture, Cluster setup, Load balancing, Failover, Performance tuning
21	Backup & Restore	Backup strategies, Scheduling backups, Restore process, Disaster recovery, Best practices
22	Integrating with Kubernetes	Helm charts, Kubernetes repositories, CI/CD pipelines, Secrets, Deployment strategies
23	JFrog Mission Control	Overview, Managing multiple Artifactory instances, License management, Monitoring, Reporting
24	JFrog Distribution	Distribution overview, Release bundles, Signing artifacts, Edge nodes, Automation
25	Performance Optimization	Repository optimization, Caching strategies, Storage management, Indexing, Monitoring performance
26	Integrating with IDEs	IntelliJ, Eclipse, Visual Studio, Plugins, Build integration
27	REST API Deep Dive	Authentication, CRUD operations, Build info, Repository management, Automation scripts
28	Advanced JFrog CLI	Multi-repo commands, Build integration, Environment variables, Automation scripts, Error handling
29	Best Practices & Troubleshooting	Security best practices, CI/CD best practices, Performance tips, Common errors, Troubleshooting guide
30	Final Project & Review	Set up Artifactory repo, Upload artifacts, Integrate pipeline, Scan with Xray, Perform distribution

Interview question

📘 Basic Level

1. What is JFrog Artifactory?
2. What are the main features of JFrog Artifactory?
3. Explain the difference between a local, remote, and virtual repository in JFrog.
4. What is the purpose of JFrog CLI?
5. Which package formats are supported by JFrog Artifactory?
6. How does JFrog Artifactory integrate with CI/CD tools?
7. What is the difference between JFrog Artifactory OSS and JFrog Pro?
8. Explain the concept of metadata in JFrog repositories.
9. What is the default storage mechanism used in Artifactory?
10. How do you create a local repository in JFrog Artifactory?
11. What is the JFrog Mission Control tool used for?
12. Explain the concept of ?repository path? in Artifactory.
13. How does authentication work in JFrog Artifactory?
14. What are the different types of repositories in JFrog?
15. Can JFrog Artifactory host Docker images?
16. What is the role of artifactory.properties file?
17. How do you access JFrog Artifactory via REST API?
18. What is the purpose of the JFrog Xray product?
19. Explain the concept of repository replication.
20. How do you search for an artifact in Artifactory?
21. What is the difference between Artifactory and Nexus?
22. How do you configure users and groups in JFrog?
23. What is the JFrog Platform?
24. What is the purpose of access tokens in JFrog?
25. Explain the basic installation steps for JFrog Artifactory.

---

📗 Intermediate Level

1. How do you integrate JFrog Artifactory with Jenkins?
2. Explain artifact promotion in JFrog.
3. How does JFrog handle artifact versioning?
4. What is the difference between "Snapshot" and "Release" repositories in Maven with JFrog?
5. How do you configure SSL for JFrog Artifactory?
6. What is JFrog Pipelines, and how does it differ from Jenkins?
7. Explain the use of ?Build Info? in JFrog.
8. How do you replicate a repository across multiple sites?
9. What is the difference between push and pull replication?
10. How do you monitor Artifactory performance?
11. What are the benefits of using JFrog CLI over REST API?
12. How do you backup and restore JFrog Artifactory data?
13. What is the difference between anonymous and authenticated access?
14. How do you configure API keys for automation in JFrog?
15. Explain the role of access federation in JFrog.
16. How do you configure retention policies for artifacts?
17. What is the use of JFrog Access service?
18. How do you configure LDAP or SAML authentication in JFrog?
19. What is artifact resolution in JFrog?
20. How do you enable high availability (HA) in JFrog?
21. Explain the concept of "checksum-based storage".
22. What is the difference between virtual and remote repositories?
23. How do you enable fine-grained permissions for users?
24. Explain how caching works in remote repositories.
25. How do you monitor security vulnerabilities using JFrog Xray?

---

📕 Advanced Level

1. How does JFrog Artifactory handle immutability of artifacts?
2. Explain JFrog?s microservices architecture.
3. How do you integrate JFrog Artifactory with Kubernetes?
4. What are the scaling strategies for JFrog Artifactory in production?
5. How do you secure Docker repositories in JFrog?
6. Explain how JFrog Xray integrates with CI/CD pipelines.
7. How do you handle artifact cleanup strategies?
8. What is the difference between Smart Remote Repositories and Replication?
9. How does JFrog Artifactory store binary files internally?
10. How do you troubleshoot performance issues in JFrog?
11. Explain how to configure distribution repositories in JFrog.
12. How do you manage multi-site artifact distribution?
13. How does JFrog handle database connectivity?
14. What are some best practices for repository naming conventions?
15. How do you configure JFrog for disaster recovery?
16. Explain the use of ?Repository Layouts? in JFrog.
17. What are JFrog Projects, and how are they useful?
18. How do you automate artifact promotion with JFrog CLI?
19. What is the role of metadata indexing in JFrog?
20. How do you use AQL (Artifactory Query Language)?
21. What is the difference between an artifact and a module?
22. How do you configure security replication across multiple JFrog instances?
23. What is the role of the router service in JFrog architecture?
24. How do you integrate JFrog with HashiCorp Vault or Secret Managers?
25. Explain the difference between hybrid and SaaS deployments of JFrog.

---

📓 Expert Level

1. How do you design a multi-region JFrog deployment for enterprise scale?
2. Explain the internals of JFrog?s checksum-based storage mechanism.
3. How do you tune JFrog Garbage Collection for performance?
4. What are the advanced security practices for securing JFrog repositories?
5. How do you integrate JFrog with Service Mesh (Istio, Linkerd)?
6. Explain the challenges of scaling JFrog in cloud-native environments.
7. How do you design HA clusters for JFrog Artifactory?
8. What are the advanced use cases of JFrog Xray?
9. How do you handle petabyte-scale artifact storage in JFrog?
10. Explain the role of Metadata Service in JFrog?s architecture.
11. How do you debug microservice failures in JFrog Platform?
12. What are the performance bottlenecks in JFrog, and how do you mitigate them?
13. How do you configure fine-grained RBAC across thousands of users in JFrog?
14. What are the differences between JFrog SaaS and self-hosted from a security perspective?
15. How do you integrate JFrog with GitOps workflows?
16. How do you migrate from Nexus/Harbor to JFrog Artifactory?
17. Explain the process of onboarding enterprise teams into JFrog Platform.
18. How do you configure JFrog Distribution for global software delivery?
19. What is the best approach to securing API-driven automation in JFrog?
20. How do you tune JFrog?s PostgreSQL for optimal performance?
21. What are some strategies to reduce storage costs in JFrog Artifactory?
22. How do you integrate JFrog with advanced observability tools (Prometheus, Grafana, ELK)?
23. How do you implement a blue/green deployment strategy using JFrog?
24. What is the future roadmap of JFrog (AI/ML integrations, advanced DevSecOps features)?
25. Explain how JFrog can be part of a Zero Trust security model.

Related Topics

#Log4j

Last updated    - V6 (17-Sep-2025)

Key Concepts

Topic	SubTopic	Basic ✅	Intermediate ✅	Advanced ✅	Expert ✅
Introduction	What is Log4j, Features, Benefits, Logging levels	✅	✅	✅	✅
Installation & Setup	Dependencies, Configuration files, Log4j2.xml, Classpath setup	✅	✅	✅	✅
Loggers	Logger hierarchy, Root logger, Named logger, Logger levels	✅	✅	✅	✅
Appenders	Console, File, RollingFile, Socket, SMTP, Custom Appenders	✅	✅	✅	✅
Layouts	PatternLayout, HTMLLayout, JSONLayout, Custom layouts	✅	✅	✅	✅
Filters	LevelRangeFilter, ThresholdFilter, Custom filters	✅	✅	✅	✅
Configuration	XML, Properties, YAML, JSON configuration, Programmatic config	✅	✅	✅	✅
Asynchronous Logging	AsyncAppender, Thread safety, Performance benefits		✅	✅	✅
Logging Performance	Buffering, Async logging, Garbage collection impact		✅	✅	✅
Advanced Features	Custom appenders, Custom filters, MDC/NDC, Lookups			✅	✅
Error Handling	Handling exceptions in logging, Failover strategies		✅	✅	✅
Integration	Spring Boot, SLF4J, Logback bridge, Application frameworks		✅	✅	✅
Monitoring & Maintenance	Log rotation, Archiving, Log cleanup, Metrics		✅	✅	✅
Security	Masking sensitive data, Secure logging, Audit logs		✅	✅	✅
Best Practices	Structured logging, Correlation IDs, Logging guidelines	✅	✅	✅	✅

Interview question

1. Introduction ? What is Log4j, Features, Benefits, Logging levels

1. What is Log4j?
2. Explain the main features of Log4j.
3. What are the benefits of using Log4j?
4. List the logging levels in Log4j.
5. What is the difference between DEBUG and INFO levels?
6. What is the difference between WARN and ERROR levels?
7. How does Log4j help in application debugging?
8. Can you disable logging in production? How?
9. What are common use cases for Log4j?
10. How does Log4j differ from System.out.println logging?

---

2. Installation & Setup ? Dependencies, Configuration files, Classpath

1. How do you install Log4j in a Java project?
2. What are the required dependencies for Log4j2?
3. What is the default configuration file name for Log4j2?
4. How to configure Log4j using XML?
5. How to configure Log4j using Properties file?
6. How to configure Log4j using JSON or YAML?
7. How to set the classpath for Log4j configuration?
8. Can you programmatically configure Log4j? How?
9. What are common configuration mistakes?
10. How to verify that Log4j is initialized correctly?

---

3. Loggers ? Logger hierarchy, Root logger, Named logger, Logger levels

1. What is a Logger in Log4j?
2. Explain Logger hierarchy in Log4j.
3. What is the root logger?
4. How to create a named logger?
5. How to set different levels for different loggers?
6. What is additive behavior in loggers?
7. How to prevent logger messages from propagating?
8. Can loggers be defined programmatically?
9. Difference between Logger and Root Logger?
10. How to log messages to multiple loggers?

---

4. Appenders ? Console, File, RollingFile, Socket, SMTP, Custom

1. What is an Appender in Log4j?
2. How to configure ConsoleAppender?
3. How to configure FileAppender?
4. What is RollingFileAppender and why use it?
5. How to configure SMTPAppender for email notifications?
6. How to configure SocketAppender for remote logging?
7. How to create a custom Appender?
8. Difference between FileAppender and RollingFileAppender?
9. How does AsyncAppender work?
10. What are best practices for choosing appenders?

---

5. Layouts ? PatternLayout, HTMLLayout, JSONLayout, Custom layouts

1. What is a Layout in Log4j?
2. Explain PatternLayout and its placeholders.
3. How to use HTMLLayout for logging?
4. How to log in JSON format?
5. How to create a custom layout?
6. What is the default layout in Log4j?
7. How to include timestamp and thread in log pattern?
8. How to include MDC or NDC values in layout?
9. Difference between HTMLLayout and PatternLayout?
10. How to format logs for readability?

---

6. Filters ? LevelRangeFilter, ThresholdFilter, Custom filters

1. What is a Filter in Log4j?
2. How to use LevelRangeFilter?
3. How to use ThresholdFilter?
4. How to combine multiple filters?
5. How to create a custom filter?
6. Difference between Filter and Appender threshold?
7. How to filter logs by logger name?
8. How to filter logs by message content?
9. Can filters be applied programmatically?
10. Best practices for using filters?

---

7. Asynchronous Logging ? AsyncAppender, Thread safety, Performance

1. What is AsyncAppender in Log4j?
2. How does asynchronous logging improve performance?
3. How to configure AsyncAppender?
4. How to ensure thread safety with AsyncAppender?
5. Difference between synchronous and asynchronous logging?
6. How does Log4j handle high-volume logging?
7. Can AsyncAppender work with multiple appenders?
8. What is the internal queue in AsyncAppender?
9. How to monitor dropped log events?
10. Best practices for async logging?

---

8. Error Handling ? Handling exceptions in logging, Failover strategies

1. How does Log4j handle errors during logging?
2. What happens if a log file is not writable?
3. How to configure failover appenders?
4. How to prevent logging from crashing the application?
5. How to handle exceptions inside custom appenders?
6. Difference between FailoverAppender and BackupAppender?
7. How to monitor logging errors?
8. How to log errors without infinite loops?
9. How to use ErrorHandler interface?
10. Best practices for logging failures?

---

9. Integration ? Spring Boot, SLF4J, Logback bridge, Application frameworks

1. How to integrate Log4j with Spring Boot?
2. Difference between Log4j, SLF4J, and Logback?
3. How to use Log4j through SLF4J?
4. How to replace Logback with Log4j in Spring Boot?
5. How to configure logging profiles in Spring Boot?
6. How to log messages from third-party libraries?
7. How to bridge java.util.logging to Log4j?
8. How to integrate Log4j with web applications?
9. How to log asynchronous processes in frameworks?
10. How to use MDC/NDC in application frameworks?

---

10. Best Practices & Advanced Topics ? Structured logging, MDC, Security

1. What is structured logging?
2. How to use MDC (Mapped Diagnostic Context)?
3. How to use NDC (Nested Diagnostic Context)?
4. How to mask sensitive information in logs?
5. How to implement correlation IDs for distributed tracing?
6. Best practices for log file rotation and retention?
7. How to monitor logs in production?
8. How to analyze logs efficiently?
9. How to secure log files?
10. Advanced configuration tips for large-scale applications?

Related Topics

#OpenShift

Last updated    - V7 (19-Dec-2025)

Key Concepts

S.No	Topic	Sub-Topics
1	OpenShift	What is OpenShift, Features, OpenShift vs Kubernetes, Use cases, Benefits
2	OpenShift Architecture	Master node, Worker node, ETCD, API server, Controllers
3	OpenShift Editions	OpenShift Origin, OpenShift Container Platform, OpenShift Online, OpenShift Dedicated, Differences
4	Installing OpenShift	Prerequisites, Minishift/CRC setup, Installation steps, CLI installation, Verification
5	OpenShift CLI	oc commands, Login, Project management, Viewing resources, Resource management
6	OpenShift Web Console	Dashboard overview, Navigation, Creating projects, Managing resources, Monitoring
7	Projects & Namespaces	Creating projects, Viewing projects, Deleting projects, Role assignments, Resource quotas
8	OpenShift Pods	What is a Pod, Pod lifecycle, Creating Pods, Viewing Pod logs, Deleting Pods
9	OpenShift Deployments	DeploymentConfig, Deployment strategies, Scaling deployments, Rollbacks, Monitoring deployments
10	OpenShift Services	ClusterIP, NodePort, LoadBalancer, Creating services, Service discovery
11	Routes & Networking	What is a route, Creating routes, Exposing services, Path-based routing, TLS termination
12	OpenShift BuildConfig	What is BuildConfig, Source-to-Image (S2I), Docker builds, Binary builds, Triggering builds
13	OpenShift Images	Image streams, Pulling images, Tagging images, Managing image repositories, Updating images
14	Secrets & ConfigMaps	Creating secrets, Using secrets, Creating ConfigMaps, Using ConfigMaps, Mounting into pods
15	OpenShift Persistent Storage	PersistentVolume, PersistentVolumeClaim, Storage classes, Dynamic provisioning, Volume mounting
16	OpenShift Templates	Creating templates, Using templates, Parameterized templates, Deploying from templates, Best practices
17	OpenShift Operators	What is an Operator, Installing Operators, Custom Resource Definitions, Managing applications, OperatorHub
18	OpenShift Monitoring	Prometheus, Grafana, Alerts, Metrics, Logging
19	OpenShift Logging	Cluster logging, EFK stack, Viewing logs, Fluentd, Kibana
20	OpenShift Security	RBAC, Service accounts, SCC (Security Context Constraints), Network policies, Pod security
21	OpenShift Quotas & Limits	Resource quotas, Limit ranges, Enforcing quotas, Viewing usage, Best practices
22	Scaling Applications	Manual scaling, Autoscaling, Horizontal Pod Autoscaler, Resource metrics, Scaling strategies
23	OpenShift CI/CD Integration	Jenkins integration, Pipelines, OpenShift Pipelines (Tekton), Deploy triggers, Best practices
24	OpenShift Routes & Ingress	Route types, TLS, Path-based routing, Host-based routing, Load balancing
25	OpenShift Networking	Cluster networking, SDN types, Network policies, Service mesh integration, Troubleshooting networking
26	OpenShift Troubleshooting	Pod issues, Logs inspection, Event monitoring, Node issues, Common errors
27	OpenShift Backup & Restore	ETCD backup, Cluster backup, Restore strategies, Persistent volume backup, Disaster recovery
28	OpenShift Upgrades & Patching	Upgrade strategies, CLI upgrade, Web console upgrade, Rolling updates, Best practices
29	OpenShift Best Practices	Resource management, Security, CI/CD pipelines, Monitoring, Scaling strategies
30	Hands-on Project	Create project, Deploy application, Configure services & routes, Setup persistent storage, Implement CI/CD pipeline

Interview question

Basic Level

1. What is OpenShift and why is it used?
2. Difference between OpenShift and Kubernetes.
3. Key features of OpenShift.
4. What is OpenShift Origin (OKD)?
5. What is OpenShift Container Platform (OCP)?
6. What are OpenShift Editions and their differences?
7. What is a project in OpenShift?
8. What is a namespace in OpenShift?
9. How to log in to OpenShift using CLI?
10. What is oc command?
11. How to view OpenShift resources?
12. How to create a project using CLI?
13. How to delete a project?
14. What is the OpenShift Web Console?
15. How to navigate OpenShift Web Console?
16. What are pods in OpenShift?
17. What are nodes in OpenShift?
18. What is a deployment in OpenShift?
19. What are services in OpenShift?
20. Difference between ClusterIP, NodePort, and LoadBalancer services.
21. What are routes in OpenShift?
22. What is Source-to-Image (S2I)?
23. What is BuildConfig in OpenShift?
24. How to create a pod using CLI?
25. How to view pod logs?

---

Intermediate Level

1. What are deployment strategies in OpenShift?
2. Difference between rolling, recreate, and blue-green deployment.
3. How to scale applications manually?
4. How to enable autoscaling?
5. What are Horizontal Pod Autoscalers?
6. What is an ImageStream?
7. How to update images in OpenShift?
8. What are ConfigMaps and how to use them?
9. What are Secrets and how to use them?
10. How to mount ConfigMaps into pods?
11. How to mount Secrets into pods?
12. What is persistent storage in OpenShift?
13. Difference between PersistentVolume and PersistentVolumeClaim.
14. How to use storage classes in OpenShift?
15. How to implement dynamic provisioning of storage?
16. What are OpenShift templates?
17. How to create and use templates?
18. What are Operators in OpenShift?
19. How to install Operators from OperatorHub?
20. What are Custom Resource Definitions (CRDs)?
21. How to manage applications using Operators?
22. How to monitor pods and nodes?
23. What is Prometheus in OpenShift?
24. How to use Grafana dashboards?
25. What is cluster logging in OpenShift?

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Advanced Level

1. What is RBAC in OpenShift?
2. What are Service Accounts?
3. What are Security Context Constraints (SCC)?
4. How to implement network policies?
5. How to troubleshoot pod failures?
6. How to view events in OpenShift?
7. How to manage image registry in OpenShift?
8. How to configure routes with TLS termination?
9. How to configure path-based routing?
10. How to implement continuous integration using Jenkins?
11. How to implement pipelines with OpenShift Pipelines (Tekton)?
12. How to trigger builds automatically?
13. How to configure resource quotas and limits?
14. How to manage multi-project deployments?
15. How to implement application versioning?
16. How to rollback deployments?
17. How to use labels and selectors effectively?
18. How to implement application monitoring with alerts?
19. How to view metrics using OpenShift monitoring tools?
20. How to manage secrets securely?
21. How to implement blue-green deployments?
22. How to implement canary deployments?
23. How to debug network issues in OpenShift?
24. How to integrate OpenShift with external CI/CD tools?
25. How to backup and restore etcd?

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Expert Level

1. How to implement disaster recovery strategies?
2. How to handle cluster upgrades and patches?
3. How to optimize OpenShift performance?
4. How to configure OpenShift high availability?
5. How to manage multi-cluster OpenShift environments?
6. How to implement security best practices in OpenShift?
7. How to integrate OpenShift with LDAP or Active Directory?
8. How to implement SSO in OpenShift?
9. How to use OpenShift with Helm charts?
10. How to implement service mesh in OpenShift (Istio/OSSM)?
11. How to manage OpenShift network plugins (SDN/CNI)?
12. How to implement custom operators?
13. How to monitor large-scale OpenShift deployments?
14. How to configure audit logging in OpenShift?
15. How to integrate OpenShift with GitOps tools (ArgoCD/Flux)?
16. How to implement persistent storage for stateful applications?
17. How to optimize image builds and registry usage?
18. How to implement automated security scanning for images?
19. How to implement fine-grained role-based access controls?
20. How to integrate OpenShift with cloud providers (AWS/Azure/GCP)?
21. How to implement multi-tenancy in OpenShift?
22. How to handle pod security and compliance requirements?
23. How to debug complex application failures in production?
24. How to implement custom CI/CD pipelines with Tekton or Jenkins?
25. Best practices for maintaining scalable and secure OpenShift clusters.

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