EX316K – Red Hat Certified Specialist in OpenShift Virtualization exam

Opis

Cel

By passing this exam, you become a Red Hat Certified Specialist in OpenShift Virtualization that also counts towards earning a Red Hat Certified Architect (RHCA®).

Grupa docelowa

• Site reliability engineers (SREs), cluster engineers, systems administrators, cloud administrators, or cloud engineers focused on planning, designing, and implementing production-grade virtual machines under OpenShift clusters and at the same time ensuring these virtual machines remain in compliance with corporate standards

Wymagania

Red Hat recommends that candidates have taken:

• RH200 Red Hat Certified System Administrator Rapid Track course with exam  or equivalent experience
• DO280 Red Hat OpenShift Administration II: Operating a Production Kubernetes Cluster or equivalent experience
• DO316 Managing Virtual Machines with Red Hat OpenShift Virtualization or equivalent experience

Konspekt

Study points for the exam

To help you prepare, the exam objectives highlight the task areas you can expect to see covered in the exam. Red Hat reserves the right to add, modify, and remove exam objectives. Such changes will be made public in advance.

Candidates for this exam should be able to perform the following tasks:

1. Deploy OpenShift Virtualization Operator
   • Understand how Red Hat OpenShift Virtualization components work
   • Deploy Red Hat OpenShift Virtualization Operator using Red Hat OpenShift Container Platform Operator Lifecycle Management
2. Run and access virtual machines
   • Understand how to provision virtual machines using the Red Hat OpenShift Virtualization operator
   • Manage virtual machines from the web interface or the command line interface
   • Allow different users to access different virtual machine resources
3. Configure Kubernetes networking for virtual machines
   • Understand virtual machine communication on the Kubernetes SDN
   • Create ClusterIP services and network policies for virtual machines
   • Configure external access for virtual machines
4. Connect virtual machines to external networks
   • Understand the Multus CNI plug-in and use cases
   • Configure multihomed nodes and virtual machines using the NMstate operator and Multus
5. Configure Kubernetes storage for virtual machines
   • Configure appropriate services for persistent virtual machine storage
   • Attach disks to a virtual machine
   • Detach disks from a virtual machine
   • Connect virtual machines to external storage using Multus
6. Manage virtual machine templates
   • Use and modify preconfigured templates to provision virtual machines.
   • Generate custom templates to provision virtual machines
   • Manage cloud-init in templates adding access credentials, repositories and running arbitrary commands
7. Manage virtual machine snapshots
   • Understand how to create and manage virtual machine snapshots.
   • Create a snapshot of a VM
   • Restore a VM from a snapshot
8. Clone virtual machines
   • Prepare virtual machines for cloning
   • Clone virtual machines using OpenShift web console
   • Clone virtual machines’ disks using data volumes
9. Perform virtual machine live migrations
   • Understand limitations of virtual machine live migration
   • Configure virtual machines to have affinity for certain nodes
   • Understand how to start, monitor and cancel virtual machine migrations
10. Perform node maintenance and OpenShift Virtualization updates
    • Configure node maintenance resources
    • Prepare nodes for maintenance using the CLI
    • Drain the nodes correctly in order to be set in maintenance mode
11. Manage virtual machine load balancing with Kubernetes networking resources
    • Configure virtual machine load balancing with Kubernetes networking resources
    • Create and configure NodePort type services
    • Create customized routes to expose generic services
12. Configure health probes for virtual machines
    • Configure and update the run strategy parameters
    • Configure health probes and watchdog devices to monitor health and responsiveness of a virtual machine and its services
13. Prepare virtual machines for node failure
    • Determine the eviction strategies used to survive cluster node loss
    • Understand how to use node selectors, affinity, anti-affinity, tolerations and taints.
    • Use watchdog monitoring and health checks for virtual machine applications and nodes.

Red Hat reserves the right to add, modify, and remove objectives. Such changes will be made public in advance through revisions to this document.

As with all Red Hat performance-based exams, configurations must persist after restart without intervention.

Uwagi

Duration: 4 hours

Preparation

Red Hat encourages you to consider taking Managing Virtual Machines with Red Hat OpenShift Virtualization (DO316) to help prepare for this exam. Attendance in these classes is not required; students can choose to take just the exam.

While attending Red Hat classes can be an important part of your preparation, attending class does not guarantee success on the exam. Previous experience, practice, and native aptitude are also important determinants of success.

Many books and other resources on system administration for Red Hat products are available. Red Hat does not endorse any of these materials as preparation guides for exams. Nevertheless, you may find additional reading helpful to deepen your understanding.

Exam format

This exam consists of a single section lasting four hours. The exam is a performance based evaluation of candidates’ abilities to implement Red Hat OpenShift Virtualization operator and virtual machines in an OpenShift Container Platform cluster. Candidates perform a number of routine tasks similar to those they would be expected to perform in a large-scale environment and are evaluated on whether those tasks meet specific objective criteria. Internet access is not provided during the exam, and you will not be permitted to bring any hard copy or electronic documentation into the exam. This prohibition includes notes, books, or any other materials. For most exams, the documentation that ships with the product is available during the exam.

Scores and reporting

Official scores for exams come exclusively from Red Hat Certification Central. Red Hat does not authorize examiners or training partners to report results to candidates directly. Scores on the exam are usually reported within 3 U.S. business days.

Exam results are reported as total scores. Red Hat does not report performance on individual items, nor will it provide additional information upon request.

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