EX200 · domain
Operate running systems
Practise Red Hat Certified System Administrator EX200 Operate running systems practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.
Focused practice
Practice Operate running systems questions
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What this domain covers
What to know about Operate running systems
Operate running systems questions test whether you can apply the concept in context, not just recognise a definition.
How the topic appears in realistic exam-style scenarios.
Which detail in the question changes the correct answer.
How to eliminate plausible but wrong options.
How to connect the question back to the wider exam objective.
Watch out for
Common Operate running systems exam traps
- ▸Answering from memory before reading the full scenario.
- ▸Missing a constraint such as cost, availability, security, scope or command context.
- ▸Choosing a broad answer when the question asks for the most specific fix.
- ▸Ignoring why the wrong options are tempting.
Question index
All Operate running systems questions (3)
Click any question to see the full explanation, or start a practice session above.
A system administrator is troubleshooting a custom service called 'database.service' that fails intermittently. The service is a proprietary database that requires large amounts of memory. The administrator runs systemctl status database and sees 'Active: failed (Result: core-dump)' and the journal shows 'Out of memory: Killed process (database) total-vm:...' The server has 8GB RAM and 2 CPU cores. The service unit file does not contain any memory limits. The application is configured to use up to 4GB. The administrator suspects the systemd service is being killed by the OOM killer. Which action should the administrator take to prevent this issue?
Hard2Refer to the exhibit. What is the most likely cause of this failure?
Medium3A junior administrator configured a new network interface (ens224) with a static IP address using a configuration file in /etc/sysconfig/network-scripts/ifcfg-ens224. After restarting the network service, the interface comes up but does not get the IP address. The administrator runs 'ip addr show ens224' and sees no IP address assigned. The interface is listed as DOWN. The administrator then runs 'ifup ens224' manually, which succeeds, and the IP address appears. What is the most likely cause?
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Frequently asked questions
- What does the Operate running systems domain cover on the EX200 exam?
- Operate running systems questions test whether you can apply the concept in context, not just recognise a definition.
- How many questions are in this domain?
- This page lists all 3 Operate running systems questions in the EX200 question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
- What is the best way to practise this domain?
- Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
- Can I practise only Operate running systems questions?
- Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.