In your GitLab CI/CD pipeline, you need to deploy an application to a staging environment for testing before it goes to production. What GitLab feature allows you to preview and manage deployments to different environments such as staging and production?
A DevOps engineer is configuring a GitLab CI/CD pipeline with multiple jobs. They need to ensure that certain jobs execute before others while optimizing the pipeline's efficiency. Which of the following best describes how GitLab determines the order of job execution in a pipeline?
You are responsible for a CI/CD pipeline that must deploy a complex application composed of multiple services, each with its own repository. You need to ensure that the deployment process only proceeds if the builds and tests for all services are successful. How can you orchestrate this in GitLab?
You are managing a CI/CD pipeline in GitLab for a large application with multiple services. You notice that the pipeline is taking too long to complete due to numerous sequential jobs. How can you optimize the pipeline to reduce the total execution time?
Which of the following executors is an uncommon executor used in GitLab CI/CD, specifically for running jobs in isolated environments that are not typically found in common use cases?