The Red Hat Certified Enterprise Microservices Developer exam (EX283) tests your skills and knowledge to develop reliable, performant JEE applications in a microservices-style environment. The exam focuses on using the Microprofile APIs to develop microservices enterprise Java applications.
If you are a current Red Hat Certified JBoss Developer (RHCJD), you will become a Red Hat Certified Specialist in Enterprise Microservices Development by passing this exam. Anyone can take this exam, but you must be either an RHCEAD or an RHCJD in order to become a Red Hat Certified Enterprise Microservices Developer.
This exam is based on Eclipse MicroProfile 1.3.
Audience for this exam
JEE developers who wish to demonstrate their skills and abilities using Java to develop advanced, microservices-oriented enterprise applications.
Be familiar with using Red Hat® JBoss® Developer Studio in a Red Hat® Enterprise Linux environment
Have a solid background with JEE, including a knowledge and understanding of the core Java concepts and APIs. For example, exceptions, annotations, and the collections API are all required during the exam
Some familiarity with Openshift is beneficial
Study points for the exam
You should be able to accomplish the tasks below without assistance. While explicitly addressing Microprofile and microservices, the skills and abilities demonstrated in this exam are also applicable to a wide range of advanced enterprise Java developments:
Provide and obtain configuration properties through several environment-aware sources both internal and external to the application and made available through dependency injection or lookup using Configuration for Microprofile
Externalize data into configured values
Inject configured values into beans using the @Inject and the @ConfigProperty qualifier
Access or create a certain configuration
Understand default and custom ConfigSource and ConfigSource ordering
Understand and implement converters
Separate execution logic from business logic using Microprofile Fault Tolerance
Understand the relationship to MicroProfile Config
Understand async vs. sync execution type and know the default
Use @Timeout
Understand retry policies and apply using @Retry
Understand and define fallback
Understand and apply CircuitBreaker and Bulkhead
Understand and set up fault tolerance configuration
Probe the state of a computing node from another machine using MicroProfile Health Check
Understand and implement the Health Check interface and Health Check Response
Construct human-friendly Health Check Response
Understand protocol and wireformat
Export monitoring data to management agents using Microprofile Metrics
Understand difference with Health Check
Understand and use three sets of sub-resource (scopes): base, vendor, and application
Understand tags (labels), metric registry, and @Metric
Understand metadata and why it is best practice
Expose metrics via REST API
Know required metrics
Understand application metrics programming model
MicroProfile Interoperable JWT RBAC: OpenID Connect (OIDC)–based JSON Web Tokens (JWTs) for role-based access control (RBAC) of microservice endpoints
Understand security tokens in RESTful services and token-based authentication
Use JWT bearer tokens to protect services
Mark a JAX-RS application as requiring MP-JWT access control
Map MP-JWT tokens to Java EE Container APIs
As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.
While attending Red Hat classes can be an important part of one’s preparation to take this exam, 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’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.
Exam format
This exam is a hands-on, practical exam that requires you to undertake real-world development tasks. 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 material. MicroProfile specification and related documentation 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 US 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.
Exam results are reported as total scores. Red Hat does not report performance on individual items, nor will it provide additional information upon request.
The Red Hat Certified Specialist in Enterprise Application Server Administration exam (EX248) is a performance-based exam that tests your knowledge and skills to install, configure, monitor, manage, and deploy applications to Red Hat® JBoss® Enterprise Application Platform (JBoss EAP).
IT professionals who want to earn a credential that shows they have the skills and knowledge needed to install, configure, monitor, manage, and deploy applications to Red Hat JBoss EAP:
Using JBoss EAP, Red Hat Certified Specialist in Enterprise Application Server Administration exam candidates should be able to accomplish the tasks below without assistance. The tasks have been grouped into categories to assist your preparation.Install and manage JBoss EAP
Install JBoss EAP to a specific location on a system
Configure minimal security requirements for accessing and managing JBoss EAP
Access and manage JBoss EAP using the provided tools
Configure and start a multi-node, multi-server JBoss EAP domain spanning at least two hosts with multiple servers per host
Configure JBoss EAP domains, hosts and servers
Create and remove JBoss EAP domains, hosts and servers
Start, monitor and stop individual JBoss EAP domains, hosts and servers
Configure Java™ memory usage at the host, server group and server level
Configure JBoss EAP to support clustered and HA operation
Configure persistent network bindings for JBoss EAP services (both addresses and ports)
Configure high-availability clustering using TCP unicast networking
Secure the communications channels between clustered nodes
Monitoring and managing JBoss EAP
Create and restore configuration snapshots
Configure JBoss EAP logging
Configuring Java Messaging Service
Remove, create and configure JMS topics and queues
Secure access to JMS destinations
Manage applications
Select appropriate JBoss EAP server profiles based on application requirements
Configure DataSources (both XA and non-XA compliant)
Deploy and undeploy applications
Deploy and undeploy additional libraries and drivers
Deploy a web application to the root context
Configure JBoss Web Connectors
Tune and configure JBoss EAP web properties as requested
Configure an SSL encrypted connection
Configure JBoss EAP security
Create, modify, and use security domains
Connect JBoss EAP to specified external security sources such as LDAP and DBMS
Secure access to JBoss EAP services
Preparation
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. An understanding of core concepts in Java Enterprise Edition is useful, but candidates do not need to be developers nor does this exam involve application development tasks.
To help you prepare, the exam objectives highlight the task areas you can expect to see covered in the exam. These objectives apply to both JBoss EAP 7.
Red Hat reserves the right to add, modify, and remove exam objectives. Such changes will be made public in advance.
Exam format
The Red Hat Certified Specialist in Enterprise Application Server Administration exam is a performance-based evaluation of a candidate’s skills and knowledge regarding the administration of enterprise applications based on and using JBoss EAP.
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 must perform on the job.
The Red Hat Certified Specialist in Enterprise Application Server Administration exam is a hands-on, practical exam that lasts 4 hours. Internet access is not provided during the exam. 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. Internet access will be strictly controlled. Documentation that ships with JBoss EAP is available during the exam.
Red Hat reserves the right to make changes to the exam format, including timing and the policies above. Such changes will be made public in advance through revisions to this document.
Red Hat Certified Specialist in Enterprise Application Server Administration exam environment
You will be working on a Red Hat Enterprise Linux® 6 system during the exam, so prior experience using Linux or UNIX will be helpful. The purpose of this exam is not to test operating system administration skills, and extensive Linux/UNIX experience is not required. You will have a full desktop environment in which to work, and we will provide a list of basic commands for your reference in addition to the man pages and other documentation that come with Red Hat Enterprise Linux.
Fedora provides a freely available alternative for you to practice your Linux skills. A Live CD version is available that allows you to work on Fedora without needing to install it on your computer. While it is not an exact match for the environment in Red Hat Enterprise Linux, it is definitely close enough for the level of familiarity required.
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 results are reported as total scores. Red Hat does not report performance on individual items, nor will it provide additional information upon request.
The Red Hat® Certified Enterprise Application Developer exam (EX183) tests if you have a basic understanding of the core enterprise Java APIs that are required to implement modern, stateless business services.
The exam focuses on using the default behavior of the minimal set of JEE APIs that are applicable across all modern Enterprise Java application development environments:
Using JAX-RS for simple REST create, read/search, update, and delete APIs.
Using JAAS to secure access to services.
Using stateless EJBs to provide business logic.
Using CDI to integrate components.
Using JMS to send and receive messages.
Using Bean Validation to ensure data format and consistency.
Using basic JPA to create, read, update, and delete persistent objects and their relationships.
This exam is based on JBoss Enterprise Application Platform 7.
Audience for this exam
This course is designed for experienced JSE developers who want to extend and test their knowledge and skills in modern enterprise Java development.
Prerequisites for this exam
This exam has no formal prerequisites but candidates for this exam should:
Be familiar with using Red Hat JBoss Developer Studio in a Red Hat Enterprise Linux environment.
Have a solid background with JSE, including a knowledge and understanding of the core Java concepts and APIs. For example, Exceptions, Annotations, and the Collections API are all required during the exam.
Review the Red Hat Certified Enterprise Application Developer exam objectives and ensure that you are comfortable with all of the topics mentioned.
Study points for the exam
Using Red Hat JBoss EAP, you should be able to accomplish the tasks below without assistance. The tasks have been grouped into categories to assist your preparation.Bean validation
Annotate a POJO to enable and set up data validation.
Use the documentation to find useful standard validators.
JPA mapping
Annotate a POJO to map it to its persistent state representation in the database.
Apply basic property mapping and be able to use the documentation to identify correct property annotations (e.g., @Temporal).
Map a bidirectional OneToMany relationship between two entities, including both sides of the association.
Understand default fetching behavior and be able to override the fetching strategy per association.
JPA query
Implement basic JPA queries using named parameters.
Create and use a named query.
Use a query to eager fetch an association.
Messaging
Understand point-to-point vs. publish/subscribe models.
Understand JMS queues, topics, and connection factories.
Understand and use the javax.jms.MessageListener interface.
Implement a message-driven bean.
Use the @MessageDriven and @ActivationConfigProperty annotations.
REST services with JAX-RS
Understand REST concepts, particularly the application and use of the HTTP PUT, DELETE, GET, and POST methods.
Know and use standard HTTP return codes.
Implement RESTful Root resource class.
Expose a REST service using JAX-RS.
Demonstrate ability to define @Path.
Understand and use @Produce and @Consume.
Be able to both consume and produce xml- and jso-formatted content using JAX-RS.
Security
Understand basic JAAS terms and concepts.
Understand the JAAS authentication details that will be provided to you.
Secure server-side services (REST services and EJBs) using JAAS annotations.
CDI
Understand contextual scopes.
As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.
Preparation
Red Hat encourages you to consider taking Red Hat Application Development I: Programming in Java EE (AD183) to help prepare for EX183. 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
The EX183 exam is a hands-on, practical exam that requires you to undertake real-world development tasks. 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. Documentation that ships with JBoss EAP 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.
The performance-based Red Hat Certified Specialist in Virtualization exam (EX318) tests your ability to create, deploy, and manage Linux® virtual machines using Red Hat® Virtualization Manager.
To help you prepare, these 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.
You should be able to perform these tasks:
Install Red Hat Virtualization Manager (RHVM) and Red Hat Virtualization Hypervisor (RHVH)
Install Red Hat Virtualization Manager and any dependencies
Configure Red Hat Virtualization Manager to authenticate against an external IPA service.
Install Red Hat Virtualization Hypervisor
Add one or more Red Hat Virtualization Hypervisor instances to Red Hat Virtualization Manager
Create and manage datacenters and clusters
Manage storage
Configure NFS services
Configure storage domains
Import installation media into a storage domain
Create and manage virtual machines
Install virtual machines
Access virtual machine consoles with SPICE and VNC
Start and stop virtual machines
Edit virtual machine hardware characteristics
Configure automatic migration for virtual machines
Work with virtual machine images
Create snapshots
Create virtual machines from snapshots
Import existing virtual machine images into Red Hat Virtualization Manager
Create and manage Red Hat Virtualization Manager users
Create internal users
Create external users
Configure roles and assign users to those roles
Configure access using roles
Automatically deploy virtual machines
Create virtual machine templates
Deploy virtual machines using templates
Configure virtual machines using cloud-init
Create and manage networking objects
Create logical networks
Assign hosts to logical networks
Create MAC address pools
Assign MAC address pools to clusters
Create and manage cluster policies
Create scheduling and migration policies
Assign policies to clusters
As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.
Preparation
Red Hat encourages all candidates for the Red Hat Certified Specialist in Red Hat Virtualization to consider taking the Red Hat Virtualization courses to help prepare. Attendance in these classes is not required, and you can choose to just take 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 is a performance-based evaluation of Red Hat Virtualization Manager administration skills and knowledge. You perform a number of routine tasks using Red Hat Virtualization Manager and are evaluated on whether you have met specific objective criteria. Performance-based testing means you must perform tasks similar to what you perform on the job.
The Red Hat Certified Specialist in Red Hat Virtualization exam (EX318) is a single-section exam lasting 3 hours.
This exam can also be taken virtually as part of our remote testing format. Find out more about remote exams to see if this is the right choice for you.
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.
Red Hat Certified Specialist in Edge Computing and Networking exam (EX310) tests your ability to configure advanced networking in a director-based Red Hat® OpenStack environment.
Red Hat recommends that you earn both RHCSA and RHCSA in Red Hat OpenStack credentials before attempting this exam, but it is not required. Note that to earn the RHCE in Red Hat OpenStack credential, you must be an RHCSA in Red Hat OpenStack and also pass the RHCE in Red Hat OpenStack exam. While it is possible to take these exams out of sequence, Red Hat strongly recommends earning the RHCSA in Red Hat OpenStack credential first.
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.
Create and work with virtual devices
Implement and manage Linux bridges
Implement and manage OpenvSwitch bridges
Implement and manage libVirt bridges
Manage OpenStack networking agents
Provision tenant networks with DHCP agents
Enable the Load Balancer as a Service (LBAAS) and deploy instances using the LBAAS
Manage metadata agent
Manage metering agent
Deploy IPv6 networks in OpenStack
Create a tenant network with IPv4 and IPv6
Attach an IPv6 floating IP to an instance
Provision OpenStack networks
Implement network namespaces
Provision tenant networks using VXLAN, VLAN, and GRE
While attending Red Hat classes can be an important part of one’s preparation to take this exam, 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’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.
Exam format
This exam is a performance-based evaluation of Red Hat® Enterprise Linux® OpenStack Platform 10 administration skills and knowledge. You perform a number of routine administration and configuration tasks and are evaluated on whether they have met specific objective criteria.
Performance-based testing means that you must perform tasks similar to what you perform on the job.
This is a single-section exam lasting 3 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 US 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.
The Red Hat Certified Specialist in Hybrid Cloud Management exam (EX220) is a performance-based validation of Red Hat® CloudForms skills. Individuals who earn the Red Hat Certified Specialist in Hybrid Cloud Management have demonstrated the knowledge needed to deploy and manage a virtualization infrastructure using Red Hat CloudForms.
A Red Hat Certified Specialist in Hybrid Cloud Management is able to perform the following tasks:
Perform initial configuration of Red Hat CloudForms
Configure Red Hat CloudForms to connect to one or more cloud or infrastructure providers
Use Red Hat CloudForms to provision and manage virtual systems
This exam is based on Red Hat CloudForms 4.
Audience for this exam
Experienced Red Hat CloudForms administrators seeking validation of their skills
Study points for the exam
To help you prepare, review the exam objectives, which highlight the task areas you can expect to see on the exam.
Candidates should be able to perform the following tasks:
Perform initial configuration of the CloudForms Appliance.
Configure CloudForms database and network settings.
Perform initial CloudForms configuration and configure server roles.
Create volumes and assign them to virtual machines.
Use cloud-init to customize virtual machines.
Perform other management tasks.
Create and and apply SmartTags.
Configure chargeback reporting.
Configure reporting.
Perform drift analyses.
Configure alerts.
As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.
The OpenStack® Word Mark and OpenStack Logo are either registered trademarks / service marks or trademarks / service marks of the OpenStack Foundation, in the United States and other countries and are used with the OpenStack Foundation’s permission. We are not affiliated with, endorsed or sponsored by the OpenStack Foundation or the OpenStack community.
Exam format
This exam is a performance-based evaluation of Red Hat CloudForms skills and knowledge. Candidates perform a number of routine CloudForms management 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.
Prospective employers of people with the Red Hat Certificate of Expertise in Hybrid Cloud Management credential should verify any and all claims by people claiming to hold this credential by requesting their certificate number and verifying it using the Red Hat certification verification tool.
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.
Recommended next exam or course
In preparation to take this expertise exam, Red Hat recommends:
Learn how to manage and deploy systems in hybrid cloud environments.
Learn how to manage and deploy systems in hybrid cloud environments and prove your skills and knowledge to deploy and manage a virtualization infrastructure using Red Hat CloudForms with our Red Hat Certificate of Expertise in Hybrid Cloud Management exam (EX220).
Gain the skills required to deploy and manage virtual environments with Red Hat Enterprise Linux, managed through Red Hat Virtualization.
Exam description
The Red Hat Certified Specialist in Cloud Infrastructure exam (EX210) tests the skills, knowledge, and abilities needed to create, configure, and manage private clouds using Red Hat® Enterprise Linux® and Red Hat® OpenStack Platform. The exam focuses on the tasks necessary to maintain a functioning Red Hat OpenStack Platform cluster and manage day-to-day operations.
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. We do 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 is a performance-based evaluation of Red Hat OpenStack Platform skills and knowledge. Candidates perform a number of systems administration tasks focused on configuring and administering a Red hat OpenStack Platform cloud and are evaluated on whether they have met specific objective criteria. Performance-based testing means that candidates must perform tasks similar to what they would perform on the job.
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 US business days.
Exam results are reported as section scores. Red Hat does not report performance on individual items, nor will we provide additional information upon request.
The Red Hat Certified Specialist in Ceph Storage Administration exam (EX125) tests the knowledge, skills, and ability to install, configure, and manage Red Hat® Ceph Storage clusters.
Review the Red Hat Certified Specialist in Ceph Storage Administration exam objectives
Study points for the exam
To help you prepare, these 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.
You should be able to perform these tasks:
Install Red Hat Ceph Storage Server
Install Red Hat Ceph Storage Server on both physical and virtual systems
Be familiar with the Ansible installation files for Ceph
Be able to install a Ceph Storage Server using Ansible
Work with existing Red Hat Ceph Storage Server appliances
Be able to change a Ceph Storage Server configuration
Add monitor (MON) nodes and object storage device (OSD) nodes
Configure Red Hat Ceph Storage Server
Configure a replicated storage pool
Store objects in storage pool
Store objects within a namespace within a storage pool
Create and configure erasure-coded pools
Create an erasure-coded pool profile with specified parameters
Upload a file to an erasure-coded pool
Change default settings in the Ceph configuration files
Manage Ceph authentication
Create a Ceph client with restricted read or write access to MONs, OSDs, pools, and namespaces
Provide block storage with RBD
Create a RADOS block device image
Obtain information about a RADOS block device image
Map a RADOS block device image on a server
Use a RADOS block device image
Create an RBD snapshot
Create an RBD clone
Configure RBD mirrors
Deploy a RBD mirror agent
Configure one-way RBD mirroring in pool mode
Configure one-way RBD mirroring in image mode
Check the status of the mirroring process
Import and export RBD images
Export a RADOS block device to an image file
Create an incremental RBD image file
Import a full RBD image file
Import a full RBD image file updated with an incremental RBD image file
Provide object storage with RADOSGW
Deploy a RADOS gateway
Deploy a multisite RADOS gateway
Provide object storage using the Amazon S3 API
Be able to create a RADOSGW user that will use the S3 clients commands
Be able to upload and download objects to a RADOSGW using the S3 client commands
Export S3 objects using NFS
Provide object storage for Swift
Be able to create a RADOSGW user that will use the Swift interface
Be able to upload or download objects to a RADOSGW using Swift commands
Provide file storage with CephFS
Create a Ceph file system
Mount a Ceph file system on a client node, persistently
Configure CephFS quotas
Create a CephFS snapshot
Configure a CRUSH map
Be able to create a bucket hierarchy in a CRUSH map that can be used in an erasure profile or a replicant rule
Be able to remap a PG
Be able to remap all PGs in a pool for an optimal redistribution
Manage and update cluster maps
Manage MON and OSD maps
Be able to monitor and change OSD storage limits for monitoring available space on an OSD
Manage a Red Hat Ceph Storage cluster
Determine the general status of a Ceph cluster
Troubleshoot problems with OSDs and MONs
Tune Red Hat Ceph Storage
Specify and tune key network tuning parameters for a Ceph cluster
Control and manage scrubbing and deep scrubbing
Control and manage recovery and rebalancing processes
Control and manage RAM utilization against I/O performance
Troubleshoot Red Hat Ceph Storage server problems
Troubleshoot client issues
Enable debugging mode on RADOS gateway
Optimize RBD client access using key tuning parameters
Integrate Red Hat Ceph Storage with Red Hat OpenStack
Integrate Ceph using both Glance and Cinder
Identify key Glance configuration files
Configure Glance to use Ceph as a backend to store images in the Ceph cluster
Identify key Cinder configuration files
Configure Cinder to use Ceph RBDs for block storage backing volumes
As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.
Preparation
Red Hat encourages all candidates for Red Hat Certified Specialist in Ceph Storage Administration exam (EX125) to consider taking Red Hat Ceph Storage Architecture and Administration (CEPH125) to help prepare. 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 one’s preparation to take this exam, 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’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.
Exam format
This exam is a performance-based evaluation of skills and knowledge required to configure and manage Red Hat Ceph Storage clusters. You perform the configuration and administrative tasks necessary to deploy Red Hat Ceph Storage on multiple systems and are evaluated on whether they have met specific objective criteria. Performance-based testing means that you must perform tasks similar to what you perform on the job.
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 US 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.
The Red Hat Certified Specialist in Performance Tuning exam (EX442) tests your ability to use standard system tools to analyze the performance of Red Hat® Enterprise Linux® and its applications. The offering also validates the knowledge needed to use standard system tools and mechanisms to modify the behavior of the system and applications to improve performance.
You should be able to perform the tasks listed below:
Use utilities to analyze system behavior
Use utilities such as vmstat, iostat, mpstat, sar, gnome-system-monitor, top, powertop, and others to analyze and report system and application behavior
Use utilities such as Performance Co-Pilot (PCP) to analyze system behaviour
Use utilities such as dmesg, dmidecode, and sosreport to profile system hardware configurations
Monitor and alter kernel behavior
Use /proc/sys, sysctl, and /sys to examine, modify, and set kernel run-time parameters
Configure kernel behavior by altering module parameters
Analyze system and application performance
Analyze system and application behavior using tools such as ps, top, and Valgrind
Configure systems to run SystemTap scripts
Use the eBPF family of tools (e.g. syscount, gethostlatency and others) to diagnose system and application behavior
Given multiple versions of applications that perform the same or similar tasks, choose which version of the application to run on a system based on its observed performance characteristics
Tune running systems
Alter process priorities of both new and existing processes
Select and configure tuned profiles
Manage system resource usage using control groups
Tune memory utilization
Configure systems to support alternate page sizes for applications that use large amounts of memory
Configure disk and file subsystems
Select proper I/O scheduling algorithm
Tune file system layout for a given use
Tune network performance
Calculate network buffer sizes based on known quantities such as bandwidth and round-trip time
Set system buffer sizes based on those calculations
As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.
Preparation
Red Hat encourages you to consider taking Red Hat Performance Tuning: Linux in Physical, Virtual, and Cloud (RH442) to help prepare. Attendance in this class is not required, so one can choose to take just the exam. Many successful candidates who have come to class already possessing substantial skills and knowledge have reported that the class made a positive difference for them.
While attending Red Hat classes can be an important part of one’s preparation to take this exam, 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’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.
Exam format
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.
Prospective employers of a Red Hat Certified Specialist in Linux Performance Tuning should verify any and all claims by people claiming to hold this credential by requesting their certificate number and verifying it using the Red Hat certification verification tool.
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 description
The Red Hat Certified Specialist in High Availability Clustering exam (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.
Experienced Linux system administrators responsible for the planning, deployment, and management of more than 1 physical or virtualized server
An RHCE interested in becoming a Red Hat Certified Specialist or an RHCA
Prerequisites for this exam
Exam candidates must:
Red Hat recommends that candidates become a Red Hat Certified System Administrator (RHCSA) or a Red Hat Certified Engineer (RHCE) before attempting this exam but neither is required.
Understand that real-world system administration experience is also an important aspect of preparation for the exam.
Review exam objectives for the Red Hat Certified Specialist in High Availability Clustering exam.
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.
Preparation
Red Hat encourages all candidates for the Red Hat Certified Specialist in High Availability Clustering exam (EX436) to consider taking the Red Hat High Availability Clustering (RH436) training course. Attendance in this class is not required, so one can choose to take just the exam. Many successful candidates who have come to class already possessing substantial skills and knowledge have reported that the class 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.
Exam format
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 3 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.
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