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RedHat EX200 Exam - Topic 9 Question 126 Discussion

Open kmcrl value of 5 , and can verify in /proc/ cmdline
A) Explanation: # vim /boot/grub/grub.conf kernel/vmlinuz-2.6.32-71.el6.x86_64 ro root=/dev/mapper/GLSvg-GLSrootrd_LVM_LV=GLSvg/GLSroot rd_LVM_LV=GLSvg/GLSswaprd_NO_LUKSrd_NO_MDrd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet kmcrl=5 Restart to take effect and verification: # cat /proc/cmdline ro root=/dev/mapper/GLSvg-GLSroot rd_LVM_LV=GLSvg/GLSroot rd_LVM_LV=GLSvg/GLSswap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet kmcrl=5

RedHat EX200 Exam - Topic 9 Question 126 Discussion

Actual exam question for RedHat's EX200 exam
Question #: 126
Topic #: 9
[All EX200 Questions]

Open kmcrl value of 5 , and can verify in /proc/ cmdline

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Suggested Answer: A

by Rebeca at May 06, 2026, 04:23 AM

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Shasta
10 hours ago
Wait, is kmcrl really necessary? I thought it was optional.
upvoted 0 times
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Mee
6 days ago
Totally agree, it's a simple way to verify kernel parameters.
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Emerson
11 days ago
Just checked my /proc/cmdline, and kmcrl is set to 5!
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Reena
16 days ago
I think the verification step with /proc/cmdline is crucial. It’s like confirming the changes we made actually took effect, right?
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Maurine
2 months ago
I feel a bit confused about the exact syntax for the grub.conf file. Did we cover if there are any specific rules for spacing or line breaks?
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Loreta
2 months ago
This seems similar to the practice question we did about modifying kernel parameters in grub.conf. I think I can apply that knowledge here.
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Edmond
2 months ago
I remember we discussed the kmcrl parameter in class, but I'm not entirely sure what it specifically does.
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