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ISC2 ISSAP Exam - Topic 6 Question 109 Discussion

Which of the following two cryptography methods are used by NTFS Encrypting File System (EFS) to encrypt the data stored on a disk on a file-by-file basis?
B) Digital certificates and C) Public key
A) Twofish
D) RSA

ISC2 ISSAP Exam - Topic 6 Question 109 Discussion

Actual exam question for ISC2's ISSAP exam
Question #: 109
Topic #: 6
[All ISSAP Questions]

Which of the following two cryptography methods are used by NTFS Encrypting File System (EFS) to encrypt the data stored on a disk on a file-by-file basis?

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Suggested Answer: B, C

by Stanton at Nov 23, 2025, 12:28 PM

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Corrie
3 months ago
RSA is crucial, but I still think B and C are the main methods used.
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Felice
3 months ago
Definitely B and C. They work together for secure file encryption.
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Joseph
3 months ago
I feel like A is less likely. Twofish isn't commonly associated with EFS.
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Audria
3 months ago
I'm leaning towards D too. RSA is a strong encryption method.
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Luis
4 months ago
Not sure about that, sounds a bit off to me.
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Edwin
4 months ago
I thought Twofish was used in EFS too?
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Hermila
4 months ago
Wait, RSA is also involved, right?
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Refugia
5 months ago
Totally agree, those are the main methods!
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Kenneth
5 months ago
Digital certificates and public key? Sounds legit. Although, I'd prefer if they used something more secure, like AES. Just sayin'.
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Sophia
5 months ago
RSA? Really? That's for asymmetric encryption, not what NTFS EFS uses. This question is a bit tricky.
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Cassie
5 months ago
Wait, isn't Twofish a symmetric cipher? I don't think that's part of NTFS EFS.
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Emile
5 months ago
Digital certificates and public key? That sounds about right. I remember learning that in my crypto class.
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Wai
5 months ago
I'm pretty sure NTFS EFS uses some kind of symmetric encryption, not just public key. Hmm, let me think about this...
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Tawanna
6 months ago
The correct answer is B) Digital certificates and C) Public key.
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Alpha
6 months ago
I practiced a question like this before, and I think both public key and digital certificates are correct, but I could be mixing it up.
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Ernie
6 months ago
I feel like RSA is definitely one of the methods used, but I can't remember if it pairs with public key or something else.
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Rodrigo
6 months ago
Alright, time to put my cryptography knowledge to the test. I'm going to carefully read through each option and think about how they might be used by NTFS EFS.
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Iola
6 months ago
I've studied this topic before, so I think I've got a good handle on it. I'll eliminate the options that don't seem directly related to the NTFS EFS encryption, and then choose between the remaining ones.
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Lanie
6 months ago
I'm a bit confused by the wording of this question. I'll need to make sure I understand the difference between the methods listed before I can select the right answer.
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Brandee
7 months ago
I agree, B and C make sense. They handle encryption and access control.
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Ilene
7 months ago
EFS uses digital certificates and public key cryptography.
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Hannah
7 months ago
I think NTFS EFS uses public key cryptography, but I'm not sure if it's specifically RSA or something else.
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In
7 months ago
I remember studying that EFS uses digital certificates for encryption, but I can't recall if Twofish is involved.
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Svetlana
7 months ago
I think it's B and C. Digital certificates and public key are essential for EFS.
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Melissa
8 months ago
Okay, let's see. I know NTFS EFS uses encryption, so I'll need to look at the options related to that. Public key and digital certificates seem relevant.
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Allene
8 months ago
Hmm, this one seems tricky. I'll need to think carefully about the different cryptography methods used by NTFS EFS.
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Adaline
2 months ago
RSA is a classic, but I’d stick with B and C.
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Leeann
2 months ago
I’m sure it’s B and C for NTFS EFS.
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Crista
2 months ago
What about A? Twofish is pretty solid too.
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Dortha
3 months ago
Definitely leaning towards B and D.
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Leeann
3 months ago
I think B and C are the right choices.
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