EX280 Objectives and DO280 preparation

[m_sigismondi]

Hi to all,

after a tremendous experience with EX288 I'm preparing EX280.

I found some EX288 exam requirements very distant from DO288 course and labs and this surprised me since I passed easily and at the first attempt EX188 using DO188 course.

Now for EX288 I'm trying to take a lot of care with the objectives but I have some doubts: for example, the page https://www.redhat.com/en/services/training/ex288-red-hat-certified-openshift-application-developer-... declare in the Study points for the exam section:

• Deploy multi-container applications
  • Create and use Helm charts
  • Customizing deployments with Kustomize

Now the lab proposed by the DO280 course is only about creating different versions of the application by using different folders and git branches: should I create by myself some exercise to challenge myself with kustomize yaml syntax?

If someone successfully passed the exam can share how he/she practiced the objectives not covered by the labs?

Thank you,

Marco

[nandanbhat]

Talking of versions, it is something we should keep on the main site too, for the exam objectives.

Case in point, if someone were to attend DO288 v4.10 and now look at exam objectives, they would get worried on seeing OpenShift Pipelines in the objectives. Their course version (4.10 as delivered) or their exam version (4.10, possible to select) would probably not have OpenShift Pipelines. There is scope for confusion.

Nandan

[m_sigismondi]

Hi @nandanbhat ,

I made the same question on a different discussion and @Chetan_Tiwary_  gave me a solution: https://learn.redhat.com/t5/Welcome/EX288V10-exam-objectives/m-p/38833/highlight/true#M1105

M.

[MoQachchaou]

Hello @Travis 

Please a question about the same exam, in the TLS lab for example there is yaml files that are already provided and then you can just edit them, in the exam is any yaml files given or you need to create them from scratch in all sections ? 

Thank you

[Chetan_Tiwary_]

@MoQachchaou without violating NDA , it is impossible to tell the details about such things. My advice would be to not run away from basic resource configuration yamls and take help from official docs or OCP web console to write the same if needed. With practice - writing yamls become easy and fluid - it will appear mugging up the yamls for individual resources initially - if you have not done enough practice or if you have little idea about yaml syntax. 

[Travis · Accepted solution]

@MoQachchaou -

What Chetan stated is correct. There may be times or certain instances you could be provided with "starter" files and resources, and other times you must create from scratch. So in essence you should be prepared for either. What I can state is that you can use OC commands to get starter files where you just replace items within the custom resource definitions. I believe there are other posts in the forum on using things like OC describe and OC explain and other hints to generate starter YAML files for various resource types. I encourage you to look in the community as well as the documentation on what is available.

Remember, in real life, you can't count on someone providing you with starter files that help you accomplish a solution to a problem. So it is best to look at system documentation, commands, and output to see if you can develop your own solution and way to get starter files. We do this for courses to speed up delivery of the course because we aren't as focused on the YAML file creation for that section and more just specific components.

[MoQachchaou]

that's very helpful, thank you both @Travis @Chetan_Tiwary_ 

[Kalyan_0710]

Hi,

I am planning to reappear for the Ex280V12 this week. In my previos attempt, i solved the questions through GUI and CLI. Is there any specific guidence around this ? can we use either of the method to create/ modify the cluster resources or should we use only CLI ?

[Travis · Accepted solution]

@Kalyan_0710 -

There is no use this or use that requirement (unless specified) for the exm. So the advice I have for you is to do what is easiest and what you are most comfortable with. I often find myself using both the CLI and the WebUI to complete tasks (even sometimes on the same task). The only time you need to worry is if you are asked specifically to create a YAML file for a given Custom Resource Definition and the if the exam specifically calls out create an OCP resource named My_Resource.yml and the resource should deploy X replicas of the application from the following Y image file. In that instance, you must have a My_Resource.yml file (but again, if you chose to create or modify something from the WebUI and then saving the YAML file) that deploys and runs as expected you are fine.

Basic advice I have is to check your work, do what is comfortable and quick because often time can be a big constraint on exams so if it saves 5 minutes to do some things in the GUI go for it. That is 5 minutes to spend elsewhere. Find man pages, find oc commands with describe/explain that can give you resources to COPY/PASTE/TWEAK/EXECUTE which also saves quite a bit of time.

At the end of the day, as long as you meet the exam criteria (within the specified amount of time) and it can be evaluated as expected (meaning if a resource is supposed to be named a certain way, it matches CASE and everything else) you are fine regardless of whether you used the CLI or the WebUI.

Hoep this helps!!

[kirrbr]

Hi to all, I am planning to take EX280v4.12 exam and would like to know the question strucutre like one question per chapter and the total number of questions asked in the exam.

Thanks

[Chetan_Tiwary_]

Hello @kirrbr !

No such information can be divulged because discussing exam questions or number of questions or question per chapter or question structure violates the NDA. 

You can refer to exam objectives here : https://www.redhat.com/en/services/training/red-hat-certified-openshift-administrator-exam?section=o...  match the objectives with course and prepare accordingly.