20+ practice questions focused on Essential Tools — one of the most tested topics on the Red Hat Certified System Administrator EX200 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Essential Tools PracticeA system administrator needs to find all files in /var/log that have been modified in the last 2 hours. Which command should be used?
Explanation: Option A is correct because the `find` command with `-mmin -120` searches for files whose data was modified (changed content) within the last 120 minutes. This directly matches the requirement to find files modified in the last 2 hours in /var/log.
A user complains that the 'ls' command no longer outputs colors. The administrator suspects a change in environment variables. Which command would help diagnose the issue?
Explanation: Option C is correct because the `env` command displays all current environment variables, which directly affect the behavior of commands like `ls`. The `ls` command uses the `LS_COLORS` environment variable to determine color output; if this variable is missing or altered, colors will not appear. Running `env` allows the administrator to inspect the current environment and identify if `LS_COLORS` has been changed or unset.
During a security audit, an administrator needs to list all TCP ports on which the system is listening, showing only the port numbers and the associated process names. Which command best achieves this?
Explanation: Option C is correct because `sudo ss -tlnp` lists TCP listening sockets with numeric port numbers and process names. The `-t` flag filters for TCP, `-l` shows only listening sockets, `-n` displays numeric addresses/ports (avoiding DNS resolution), and `-p` reveals the process name. This command requires root privileges to see process information, hence `sudo`.
A new Linux administrator needs to read the manual page for the 'ls' command but also wants to search for the word 'color' within the manual. Which command accomplishes this?
Explanation: Option B is correct because the man command opens the manual page for 'ls', and typing '/color' within the pager (usually less) performs an interactive forward search for the string 'color'. This allows the administrator to read the manual and search for the term in one session.
An administrator needs to terminate a hung process with PID 3456 that does not respond to 'kill -15 3456'. Which signal should be used next?
Explanation: Option A is correct because kill -9 (SIGKILL) is the signal of last resort for a process that does not respond to SIGTERM (kill -15). SIGKILL cannot be caught, blocked, or ignored by the process; it forces immediate termination by the kernel. Since the process is hung and unresponsive to SIGTERM, SIGKILL is the appropriate next step.
+15 more Essential Tools questions available
Practice all Essential Tools questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Essential Tools. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Essential Tools questions on the EX200 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Essential Tools is tested as part of the Red Hat Certified System Administrator EX200 blueprint. Practicing with targeted Essential Tools questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free EX200 practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Essential Tools is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
Launch a full Essential Tools practice session with instant scoring and detailed explanations.
Start Essential Tools Practice →