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LPI 305-300 Exam - Topic 3 Question 56 Discussion

Which sub-command of xl changes the media inside a virtual CD-ROM drive of a Xen guest domain?(Specify ONLY the sub-command without any path or parameters.)Solution:block-attach -- or -- xl cd-insert -- or -- cd-eject -- or -- xl cd-eject -- or -- cd-insert -- or -- xl block-attach -- or -- block-detach -- or -- xl block-detachDetermine whether the given solution is correct?
B) Incorrect
A) Correct

LPI 305-300 Exam - Topic 3 Question 56 Discussion

Actual exam question for LPI's 305-300 exam
Question #: 56
Topic #: 3
[All 305-300 Questions]

Which sub-command of xl changes the media inside a virtual CD-ROM drive of a Xen guest domain?

(Specify ONLY the sub-command without any path or parameters.)

Solution:

block-attach -- or -- xl cd-insert -- or -- cd-eject -- or -- xl cd-eject -- or -- cd-insert -- or -- xl block-attach -- or -- block-detach -- or -- xl block-detach

Determine whether the given solution is correct?

Show Suggested Answer Hide Answer
Suggested Answer: B

According to official Xen xl toolstack documentation, the correct sub-commands used to change media in a virtual CD-ROM drive are cd-insert and cd-eject. These commands are specifically designed for inserting or ejecting ISO media from a Xen guest's virtual CD-ROM device.

While commands such as block-attach and block-detach are valid xl sub-commands, they are used for attaching and detaching block devices in general and are not specific to CD-ROM media operations. The provided solution lists multiple commands, including incorrect and unrelated ones, rather than specifying the correct sub-command precisely.

Because the solution does not accurately and exclusively identify the correct xl sub-command, it is considered incorrect. Therefore, the correct determination is B.


by Chara at Jun 17, 2026, 08:09 AM

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Karrie
17 hours ago
True, but both are related.
upvoted 0 times
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Josephine
6 days ago
Block-attach is for disks, not CDs.
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Marcelle
11 days ago
I agree, it seems more direct.
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Karrie
16 days ago
But isn't cd-insert more specific?
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Josephine
21 days ago
xl block-attach sounds right to me.
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Marcelle
27 days ago
I feel unsure about that.
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Karrie
1 month ago
I think it's xl cd-insert.
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Keva
1 month ago
Really? I thought it was something else entirely.
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Elbert
1 month ago
No way, it's not block-attach!
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Wei
2 months ago
Wait, isn't it block-attach?
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Elli
2 months ago
Definitely agree, that's the right one.
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Eloisa
2 months ago
I think it's xl cd-insert!
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Reynalda
2 months ago
I feel like "block-detach" was part of a similar question we did, but I can't tell if it applies to changing media in this case.
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Ulysses
2 months ago
I'm pretty confident that "xl cd-eject" is one of the commands, but I can't remember if it's the only one we need to specify here.
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Louvenia
2 months ago
I remember practicing a question about changing media in a virtual drive, and I think "xl block-attach" was mentioned, but I can't recall if it was the right one for this context.
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Stephanie
3 months ago
I think the command is related to "cd-insert" but I'm not entirely sure if it's "xl cd-insert" or just "cd-insert."
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