CND Endpoint Protection Practice Question
An administrator needs to harden an IoT gateway running Linux by disabling core dumps globally to prevent sensitive application memory from being written to disk if a process crashes. Which configuration should be applied?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Setting ProcessCoreDump=false in /etc/systemd/coredump.conf
Core dumps are disabled globally by configuring limits in /etc/security/limits.conf or via systemd's coredump.conf.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Running chmod 000 /bin/sh
Why it's wrong here
Removing execute permissions from the shell breaks the operating system environment.
- ✓
Setting ProcessCoreDump=false in /etc/systemd/coredump.conf
Why this is correct
Configuring systemd-coredump to disable core dumps prevents memory contents from being persisted to disk upon crashes.
- ✗
Editing /etc/fstab to mount /tmp as read-only
Why it's wrong here
Making /tmp read-only affects temporary file writes, not core dump generation.
- ✗
Modifying /etc/resolv.conf to block DNS queries
Why it's wrong here
resolv.conf configures DNS name server resolvers, unrelated to core dumps.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official EC-Council exam blueprint
This CND practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CND exam.