The Red Hat Certificate of Expertise in High Availbility Clustering (EX436) is a performance-based test of the skills and knowledge needed to implement high-availability services on Red Hat® Enterprise Linux® using the Red Hat Enterprise Linux High Availability Add-on.
This exam is based on Red Hat Enterprise Linux 7.
- Experienced Linux® system administrators responsible for the planning, deployment, and management of more than 1 physical or virtualized server
- High Availability Clustering—an RHCE® interested in earning a Red Hat Certificate of Expertise or an RHCDS or RHCA credential
What you need to know
Red Hat encourages all candidates for the Red Hat Certificate of Expertise in High Availability Clustering (EX436) exam to take the Red Hat Enterprise High Availability Clustering (RH436) training course. Attendance in that course is not required, so one can choose to take just the exam. Many successful candidates who took the course already possessing substantial skills and knowledge have reported that the course still made a positive difference for them.
While attending Red Hat courses can be an important part of one's preparation to take exams, attending courses 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's products are available. Red Hat does not officially endorse any as preparation guides for its exam. Nevertheless, you may find additional reading deepens understanding and can prove helpful.
This exam is a performance-based evaluation of system administration skills and knowledge. Candidates perform a number of routine system administration tasks and are evaluated on whether they have met specific objective criteria.
Performance-based testing means that candidates must perform tasks similar to what they perform on the job.
This exam consists of one section lasting 4 hours.
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 section scores. Red Hat does not report performance on individual items, nor will it provide additional information upon request.
Exam candidates should:
- Hold a current RHCE certification at the time the exam is taken.
- Have Red Hat High Availability Clustering (RH436) or equivalent experience.
- Understand that real-world system administration experience is also an important aspect of preparation for the exam.
- Review exam objectives for the Red Hat Certificate of Expertise in High Availability Clustering.
Red Hat recommends that candidates earn Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE®) before attempting this exam but neither is required.
Study points for the exam
To help you prepare, review the exam objectives which highlights 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 should be able to perform the tasks listed below:
- Configure a high-availability cluster, using either physical or virtual systems, that:
- Utilizes shared storage.
- Provides service fail-over between the cluster nodes.
- Provides preferred node for a given service.
- Selectively fails over services based on specific constraints.
- Preemptively removes non-functioning cluster members to prevent corruption of shared storage.
- Manage logical volumes in a clustered environment:
- Create volume groups that are available to all members of a highly available cluster.
- Create logical volumes that can be simultaneously mounted by all members of a high-availability cluster.
- Configure a GFS file system to meet specified size, layout, and performance objectives.
- Configure iSCSI initiators.
- Use multipathed devices.
- Configure cluster logging.
- Configure cluster monitoring.
As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.