自分の幸せは自分で作るものだと思われます。ただ、社会に入るIT卒業生たちは自分能力の不足で、EX380試験向けの仕事を探すのを悩んでいますか？それでは、弊社のRedHatのEX380練習問題を選んで実用能力を速く高め、自分を充実させます。その結果、自信になる自己は面接のときに、面接官のいろいろな質問を気軽に回答できて、順調にEX380向けの会社に入ります。
| トピック | 出題範囲 |
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| トピック 1 |
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| トピック 2 |
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| トピック 3 |
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| トピック 4 |
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| トピック 5 |
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CertJukenは多くの受験生を助けて彼らにRedHatのEX380試験に合格させることができるのは我々専門的なチームがRedHatのEX380試験を研究して解答を詳しく分析しますから。試験が更新されているうちに、我々はRedHatのEX380試験の資料を更新し続けています。できるだけ100％の通過率を保証使用にしています。
質問 # 32
GitOps and MachineConfig - Trigger Argo CD Synchronization by Repository Update
正解：
解説：
See the solution below in Explanation:
Explanation:
Step 1: Confirm that the repository being pushed to is the same repository watched by the GitOps/Argo CD application.
This linkage is essential because GitOps acts only on configured source repositories and paths.
Step 2: Commit the MachineConfig changes.
The lab uses:
git commit -am "Add MachineConfig for motd"
Step 3: Push the changes to the tracked branch.
The lab uses:
git push origin main
Step 4: Allow Argo CD to detect the repository change and begin synchronization.
In a standard GitOps model, the controller compares the Git repository to the cluster state and applies drift correction or new desired resources.
Detailed explanation:
This sub Task SIMULATION is the operational purpose behind the previous Git command Task SIMULATION . The point is not merely to store a file in Git; it is to update the declarative source that Argo CD uses to reconcile the cluster. Once the repository is updated, Argo CD detects the new commit and syncs the MachineConfig into the cluster according to its application definition. This demonstrates a core automation principle in OpenShift GitOps: administrators do not treat the cluster as the primary editable surface. Instead, they modify Git and let the automation layer enforce state. That provides traceability, peer review potential, rollback capability, and consistency across environments.
質問 # 33
Schedule a recurring backup
Task Information : Create a daily backup schedule for namespace orders at 01:00.
正解：
解説：
See the solution below in Explanation:
Explanation:
* Create the schedule
* velero schedule create orders-daily \
* --schedule "0 1 * * *" \
* --include-namespaces orders \
* --snapshot-volumes
* Cron format: minute hour day month weekday.
* Verify schedule exists
* velero schedule get
* Confirm backups are created by the schedule
* velero backup get | grep orders-daily
* Scheduled backups usually have names derived from the schedule.
質問 # 34
Kubeconfig Management - Set Context in Kubeconfig
正解：
解説：
See the solution below in Explanation:
Explanation:
Step 1: Verify the cluster name, namespace, and user name that should be referenced.
The lab uses cluster api-ocp4-example-com:6443, namespace audit-ns, and user audit-sa.
Step 2: Run the command:
oc config set-context audit --cluster api-ocp4-example-com:6443 --namespace audit-ns --user audit-sa -- kubeconfig audit.config Step 3: Confirm context creation.
The lab output shows:
Context "audit" created.
Detailed explanation:
A kubeconfig context ties together three things: a cluster endpoint, a user identity, and optionally a default namespace. This Task creates a context named audit in the file audit.config. Contexts are useful because they simplify repeated administration by letting the user switch between prepared working environments instead of re-entering cluster and namespace details each time. The namespace portion is especially helpful for project- scoped operations, because commands run under that context default to the chosen namespace. Accuracy matters here: if the user name in the context does not match the credentials entry or the cluster name does not exist in the kubeconfig, the context will not function as intended.
質問 # 35
Configure resiliency using a PodDisruptionBudget
Task Information : Ensure at least 2 replicas of payments/api remain available during voluntary disruptions.
正解：
解説：
See the solution below in Explanation:
Explanation:
* Create PDB
* cat < < EOF | oc -n payments apply -f -
* apiVersion: policy/v1
* kind: PodDisruptionBudget
* metadata:
* name: api-pdb
* spec:
* minAvailable: 2
* selector:
* matchLabels:
* app: api
* EOF
* minAvailable: 2 blocks evictions that would reduce availability below 2.
* Verify PDB
* oc -n payments get pdb
* oc -n payments describe pdb api-pdb
質問 # 36
Create and apply a MachineConfig (set MOTD on workers)
Task Information : Create a MachineConfig that writes /etc/motd on worker nodes.
正解：
解説：
See the solution below in Explanation:
Explanation:
* Create the MachineConfig YAML (example content encoded in base64)
* apiVersion: machineconfiguration.openshift.io/v1
* kind: MachineConfig
* metadata:
* name: 99-worker-motd
* labels:
* machineconfiguration.openshift.io/role: worker
* spec:
* config:
* ignition:
* version: 3.2.0
* storage:
* files:
* - path: /etc/motd
* mode: 0644
* contents:
* source: data:text/plain;charset=utf-8;base64,VGhpcyBpcyBhIHdvcmtlciBub2RlLg==
* MachineConfig uses Ignition format; file content is typically base64.
* Apply it
* oc apply -f 99-worker-motd.yaml
* Watch worker MachineConfigPool roll out
* oc get mcp worker
* MCP will show Updating then Updated.
* Validate on a worker node (if you have node access)
* Confirm /etc/motd contains the expected text.
質問 # 37
......
形式に固執することなく、EX380学習クイズは5分以内に取得できます。練習資料を入手するために並んだり並んだりする必要はありません。これらのバージョンの使用はすべて、彼らに受け入れられています。これらのバージョンのEX380模擬練習の間に大きな格差はありませんが、能力を強化し、レビュープロセスを高速化してEX380試験についての知識を習得するのに役立ちます。そのため、レビュープロセスは妨げられません。
EX380合格率: https://www.certjuken.com/EX380-exam.html