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ISC2 ISSAP Exam - Topic 2 Question 38 Discussion

Actual exam question for ISC2's ISSAP exam
Question #: 38
Topic #: 2
[All ISSAP Questions]

Which of the following layers of the OSI model provides non-repudiation services?

Show Suggested Answer Hide Answer
Suggested Answer: A

The application layer functions include identifying communication partners, determining resource availability, and synchronizing communication.

When identifying communication partners, the application layer determines the identity and availability of communication partners for an

application with data to transmit.

The non-repudiation service provides proof of the integrity and origin of data. It is also an authentication that with high assurance can be

asserted to be genuine.

Answer option C is incorrect. The presentation layer provides a variety of coding and conversion functions applied to the application layer

data.

Answer option B is incorrect. The data-link layer provides reliable transit of data across a physical network link.

Answer option D is incorrect. The physical layer defines the electrical, mechanical, procedural, and functional specifications for activating,

maintaining, and deactivating the physical link between communicating network systems.


by Benton at May 08, 2022, 02:12 PM

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Rusty
4 months ago
Wait, are you guys sure? I thought non-repudiation was a different concept altogether.
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Emilio
4 months ago
Really? I always thought it was more about the data-link layer.
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Keena
4 months ago
Non-repudiation is all about the application layer, for sure.
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Lanie
4 months ago
I thought it was the presentation layer?
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Odelia
5 months ago
It's definitely the application layer!
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Stephaine
5 months ago
I’m leaning towards the application layer for this one, but I wish I had reviewed more about the specific functions of each layer.
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Deeanna
5 months ago
The physical layer definitely doesn't deal with non-repudiation, but I can't recall if it's the presentation or application layer that does.
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Hillary
5 months ago
I remember practicing a question about OSI layers, and I feel like the data-link layer was mentioned, but it doesn't seem right for non-repudiation.
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Callie
5 months ago
I think non-repudiation is mostly handled at the application layer, but I'm not entirely sure.
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Fatima
5 months ago
Hmm, this is a tough one. I know work orders and purchase orders are involved, but I'm not certain about the other options. I'll start with those two and then try to reason through the third answer. Gotta be careful not to overthink it.
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Stanton
5 months ago
Ugh, these validation questions can be tricky. I'm going to review the common HTML tags and think through which ones are not part of any standard. That should help me narrow it down.
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Belen
5 months ago
Okay, let me break this down. The question is asking where an Administrator can make Open CTI features available when building a Lightning App. Based on my understanding, that would be on the utility bar and record highlights panel. I'll go with A and B.
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