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Isaca CISM Exam - Topic 3 Question 94 Discussion

Actual exam question for Isaca's CISM exam
Question #: 94
Topic #: 3
[All CISM Questions]

Which type of backup BEST enables an organization to recover data after a ransomware attack?

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Suggested Answer: D

Comprehensive and Detailed Step-by-Step Explanation:

Recovering from ransomware requires backups that are unaffected by the ransomware attack. Here's why offline backups are most effective:

A . Online backup: These are connected to the network and may also be compromised during an attack.

B . Incremental backup: While efficient, incremental backups rely on previous backups and are typically stored online, making them vulnerable to ransomware.

C . Differential backup: Similar to incremental backups, these are not immune if stored online or on compromised systems.

D . Offline backup: This is the BEST choice as offline backups are stored in a location that is not connected to the network, preventing ransomware from encrypting them.


by Lonna at Mar 05, 2025, 02:00 PM

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Margo
6 months ago
I’m surprised people still trust online backups after all the attacks!
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Kenneth
6 months ago
Wait, are we sure offline backups are the best? What about online options?
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Twana
6 months ago
Definitely agree, offline backups are crucial for ransomware recovery.
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Kip
7 months ago
I think incremental backups are pretty solid too.
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Justine
7 months ago
Offline backup is the safest option!
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Frank
7 months ago
I feel like online backups could be risky during a ransomware attack, but I can't recall the specifics on why that is.
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Annamae
7 months ago
I practiced a similar question, and I think differential backups might be the answer since they capture changes since the last full backup.
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Martina
7 months ago
I think incremental backups are useful, but I'm not sure if they provide the best recovery option after an attack.
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Jean
8 months ago
I remember studying that offline backups are generally safer from ransomware since they aren't connected to the network.
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Sol
8 months ago
I'm leaning towards the offline backup option. That seems like it would be the most secure way to recover data after a ransomware attack, since the backups wouldn't be connected to the network.
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Jesse
8 months ago
Offline backup seems like the way to go. That would keep the data isolated from the network and protected from ransomware. But I'm not totally sure if that's the "best" option compared to the other choices.
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Loren
8 months ago
Hmm, this is a tricky one. I'm not sure if online backup would be the best option since ransomware could potentially encrypt those backups too. Maybe an offline backup would be more secure?
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Anglea
8 months ago
I think the key here is to focus on the "recover data after a ransomware attack" part of the question. That suggests we need a backup method that can protect against ransomware.
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Rebecka
1 year ago
I agree with Franchesca, offline backup is the safest option for ransomware attacks.
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Franchesca
1 year ago
But offline backup is not connected to the network, so it's less likely to be affected by ransomware.
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Val
1 year ago
I disagree, I believe online backup is more effective for recovery.
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Franchesca
1 year ago
I think the best backup for ransomware attack recovery is offline backup.
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Judy
1 year ago
D. Offline backup is the way to go. Gotta keep that data safe from the ransomware goblins!
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Dierdre
1 year ago
Offline backup, all the way! It's like a digital bomb shelter for your data.
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Kris
1 year ago
Hmm, I'm gonna have to go with D. Offline backup. Ain't no virus getting its grubby hands on my data!
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Ahmad
1 year ago
I'd go with D. Offline backup. Gotta keep that data safe from those pesky hackers, you know?
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Paris
1 year ago
I'd go with D. Offline backup. Gotta keep that data safe from those pesky hackers, you know?
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Edelmira
1 year ago
D) Offline backup
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Lenita
1 year ago
C) Differential backup
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Alpha
1 year ago
B) Incremental backup
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Reuben
1 year ago
A) Online backup
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Adelaide
1 year ago
Definitely offline backup. Ransomware can't encrypt what's not connected to the network!
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Sanda
1 year ago
I agree, keeping backups offline is a smart way to prevent data loss from attacks.
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Colene
1 year ago
Offline backup is definitely the way to go to protect against ransomware.
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