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XK0-006 Practice Question: Drag and drop the steps to configure a firewall…
Drag and drop the steps to configure a firewall rule using iptables to allow SSH in the correct order.
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
✓
Add SSH allow rule, then set INPUT default DROP, then save rules
Firewall configuration typically involves adding allow rules before setting default drop and saving.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Add SSH allow rule, then set INPUT default DROP, then save rules
Why this is correct
This is correct because you must first add the allow rule to avoid locking yourself out when changing the default policy. Then set the default to DROP, and save to persist the changes.
- ✗
Set INPUT default DROP, then add SSH allow rule, then save rules
Why it's wrong here
This is incorrect because setting the default to DROP first can disconnect an active SSH session before the allow rule is added, resulting in loss of remote access.
- ✗
Add SSH allow rule, then save rules, then set INPUT default DROP
Why it's wrong here
This is incorrect because saving before setting the default DROP means the default DROP rule is not saved, so the configuration is incomplete and the system will not have the intended default policy after reboot.
- ✗
Save rules, then add SSH allow rule, then set INPUT default DROP
Why it's wrong here
This is incorrect because saving first captures current rules (likely empty or previous), then the subsequent allow and drop rules are not saved, so changes are lost on reboot.
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Courseiva writes every XK0-006 question from scratch — 979 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 practice question is part of Courseiva's free CompTIA 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 XK0-006 exam.