| No. | Item | Definition |
|---|---|---|
| 1. | API | interface for software communication |
| 2. | artifact | stored build output |
| 3. | authentication | verifying identity |
| 4. | automation | using tools to reduce manual work |
| 5. | autoscaling | automatic resource scaling |
| 6. | availability | system uptime and accessibility |
| 7. | AWS | Amazon cloud platform |
| 8. | Azure | Microsoft cloud platform |
| 9. | backup | copy for recovery |
| 10. | bandwidth | data transfer capacity |
| 11. | Bash | common Unix shell |
| 12. | branch | parallel line of development |
| 13. | build | compiled or packaged software output |
| 14. | capacity | available system resources |
| 15. | CI/CD | continuous integration and delivery |
| 16. | cloud | on-demand computing resources |
| 17. | cluster | group of connected machines |
| 18. | commit | saved set of code changes |
| 19. | configuration | system settings and setup |
| 20. | container | portable packaged application unit |
| 21. | dashboard | visual view of system data |
| 22. | debugging | finding and fixing issues |
| 23. | deployment | releasing software to environments |
| 24. | DevOps | development and operations culture |
| 25. | disaster recovery | plan for major outages |
| 26. | DNS | domain name lookup system |
| 27. | Docker | containerization platform and tooling |
| 28. | encryption | protecting data by encoding |
| 29. | endpoint | specific API address |
| 30. | failover | switching to standby system |
| 31. | firewall | network traffic filtering system |
| 32. | GCP | Google cloud platform |
| 33. | Git | distributed version control system |
| 34. | Grafana | metrics visualization platform |
| 35. | gRPC | high-performance remote procedure calls |
| 36. | Helm | Kubernetes package manager |
| 37. | high availability | designed for minimal downtime |
| 38. | HTTP | web communication protocol |
| 39. | HTTPS | secure web communication protocol |
| 40. | IAM | identity and access management |
| 41. | incident | unplanned service disruption |
| 42. | infrastructure | underlying computing resources and systems |
| 43. | ingress | external access routing |
| 44. | instance | running virtual server |
| 45. | integration test | test of combined components |
| 46. | Kafka | distributed event streaming platform |
| 47. | Kubernetes | container orchestration platform |
| 48. | latency | delay before a response |
| 49. | Linux | common server operating system |
| 50. | load balancer | distributes traffic across targets |
| 51. | logging | recording system events |
| 52. | memory | RAM used by processes |
| 53. | merge | combine code changes together |
| 54. | metrics | numerical performance measurements |
| 55. | microservices | small independent service architecture |
| 56. | monitoring | tracking system health and performance |
| 57. | monolith | single large application |
| 58. | namespace | logical resource grouping |
| 59. | networking | connecting systems and traffic |
| 60. | node | individual machine in a cluster |
| 61. | NoSQL | nonrelational database approach |
| 62. | observability | understanding systems through telemetry |
| 63. | on-call | assigned to handle incidents |
| 64. | orchestration | coordinated management of services |
| 65. | pipeline | automated software delivery workflow |
| 66. | playbook | step-by-step response guide |
| 67. | pod | smallest Kubernetes deployable unit |
| 68. | postmortem | review after an incident |
| 69. | production | live environment for users |
| 70. | Prometheus | monitoring and metrics system |
| 71. | provisioning | creating infrastructure resources |
| 72. | pull request | proposed code change review |
| 73. | queue | ordered work or message list |
| 74. | redundancy | duplicate components for resilience |
| 75. | reliability | consistent correct system operation |
| 76. | repository | code or package storage location |
| 77. | resilience | ability to recover quickly |
| 78. | REST | web API architectural style |
| 79. | restore | recovering from backup |
| 80. | rollback | reverting to a previous version |
| 81. | runbook | documented operational procedures |
| 82. | scalability | ability to handle growth |
| 83. | secret | sensitive credential value |
| 84. | server | computer providing services |
| 85. | serverless | managed execution without servers |
| 86. | service | network endpoint for workloads |
| 87. | shell | command-line interpreter |
| 88. | SLA | service level agreement |
| 89. | staging | preproduction testing environment |
| 90. | TCP | reliable transport protocol |
| 91. | testing | checking software behavior and quality |
| 92. | throughput | amount of work processed |
| 93. | TLS | protocol for encrypted connections |
| 94. | token | credential used for access |
| 95. | tracing | following requests across services |
| 96. | troubleshooting | diagnosing operational problems |
| 97. | unit test | test for one small component |
| 98. | VM | virtual machine |
| 99. | webhook | HTTP callback notification |
| 100. | YAML | human-readable configuration format |