EX188 Red Hat Certified Developer in Cloud-native Applications Practice Test
Build your confidence for EX188 Red Hat Certified Developer in Cloud-native Applications. Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
Try a sample questionExam overview and details
Independent practice questions for the Red Hat Certified Developer in Cloud-native Applications exam (EX188) from Red Hat, Inc. Review Podman, Containerfile construction, image management, multi-container applications and troubleshooting. These questions are not Red Hat's own material, and the actual examination is performance-based.
Sample Questions
Choose an answer and explore the explanation to see how practice works.
A team is converting billing-service into a local multi-container Podman stack that mirrors the service wiring expected later in OpenShift. They need to troubleshoot why a web service cannot resolve the database service name in a stack. Which design choice is best?
A team is converting fraud-worker into a local multi-container Podman stack that mirrors the service wiring expected later in OpenShift. They need to let services reach each other by stable names without publishing every internal port to the host. Which design choice is best?
A team is converting lab-api into a local multi-container Podman stack that mirrors the service wiring expected later in OpenShift. They need to build one service image from a local Containerfile and pull another service image from a registry. Which design choice is best?
A developer is preparing a Containerfile for billing-service on a RHEL 9 workstation with Podman. The image will be tested locally and then run on OpenShift. The requirement is to define the default process while still allowing operators to pass subcommands at runtime. Which implementation should the developer choose?
During an EX188-style lab, catalog-api has to be moved between local Podman storage and one or more registries. The immediate requirement is to distinguish a portable image backup from a snapshot of one modified container. Which action best satisfies the requirement?
Exam insights and study advice
The practice supports review of EX188 objectives involving container images, local Podman use, multi-container applications and troubleshooting. Questions include image architecture and digests, registry authentication, networking and image backups.