RedHat EX200 Exam - Topic 5 Question 125 Discussion

Actual exam question for RedHat's EX200 exam

Question #: 125
Topic #: 5

The firewall must be open.

AExplanation:
/etc/init.d/iptables start
iptables -F
iptables -X
iptables -Z
/etc/init.d/iptables save
chkconfig iptables on

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Suggested Answer: A

by Nelida at Apr 12, 2026, 04:42 PM

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Merilyn

13 hours ago

I think the firewall being open is crucial for security.

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Laquita

6 days ago

Those commands look good, but don't forget to check your rules after!

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Fairy

11 days ago

I thought iptables was outdated, isn't there a better option now?

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Cordelia

16 days ago

Wait, are we sure this won't expose us to attacks?

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Luis

2 months ago

Totally agree, firewalls are crucial for security!

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Malinda

2 months ago

Just a reminder, you need root access to run those commands.

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Kimberely

3 months ago

I vaguely remember that we need to ensure the firewall is active, but I'm not confident about the exact steps to take.

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Owen

3 months ago

I feel like I might have mixed up the commands for saving the iptables configuration. Does anyone recall if "chkconfig iptables on" is necessary?

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Willard

3 months ago

I think I practiced a similar question where we had to flush the rules first. Is that what "iptables -F" does?

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Marquetta

3 months ago

I remember something about starting iptables, but I'm not sure if I need to use all those commands in that order.

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