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Juniper Exam JN0-335 Topic 1 Question 38 Discussion

Actual exam question for Juniper's JN0-335 exam
Question #: 38
Topic #: 1
[All JN0-335 Questions]

Which two statements are true about application identification? (Choose two.)

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Suggested Answer: A, D

Application identification is a feature that enables SRX Series devices to identify and classify network traffic based on application signatures or custom rules. Application identification can enhance security, visibility, and control over network applications. Two statements that are true about application identification are:

Application identification can identify nested applications that are within Layer 7: Nested applications are applications that run within another application protocol, such as HTTP or SSL. For example, Facebook or YouTube are nested applications within HTTP. Application identification can identify nested applications by inspecting the application payload and matching it against predefined or custom signatures.

Application signatures are not the same as IDP signatures: Application signatures are patterns of bytes or strings that uniquely identify an application protocol or a nested application. IDP signatures are patterns of bytes or strings that indicate an attack or an exploit against a vulnerability. Application signatures are used for application identification and classification, while IDP signatures are used for intrusion detection and prevention.


Contribute your Thoughts:

Kris
2 months ago
Ooh, this is a good one. I'm feeling confident about D, but A's got me stumped. Guess I'll have to wing it and hope for the best. *crosses fingers*
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Jacquelyne
2 months ago
Ha, I bet the person who wrote this question is a real Layer 7 nerd. Anyway, I'm going with A and D. Nested apps? Bring it on! *flexes fingers*
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Maynard
2 months ago
This is a tricky one. I'm gonna go with B and D. Doesn't make sense to me that application ID could handle nested apps. And the signatures are totally different things. *scratches head*
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Lachelle
23 days ago
Yes, that's what makes the most sense to me. Good choice!
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Marisha
26 days ago
So, we both think B and D are the correct statements.
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Vannessa
27 days ago
I agree, D is also true because application signatures are different from IDP signatures.
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Cordie
1 months ago
I think B is correct because application identification cannot handle nested apps.
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Hui
2 months ago
Hmm, I'm not sure about A. I thought application identification couldn't handle nested apps. But D seems right - the signatures are different. Gotta brush up on my OSI layer knowledge!
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Cecily
2 months ago
I think A and D are correct. Application identification can definitely identify nested apps within Layer 7, and application signatures are distinct from IDP signatures.
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Leonora
27 days ago
Yes, D is also correct. Application signatures are different from IDP signatures.
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Dell
28 days ago
I agree, A is true because application identification can indeed identify nested applications within Layer 7.
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Sherron
1 months ago
I think A and D are correct. Application identification can definitely identify nested apps within Layer 7, and application signatures are distinct from IDP signatures.
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Wade
2 months ago
But application identification can definitely identify nested applications within Layer 7, so A must be true.
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Nu
3 months ago
I disagree, I believe it's B and C.
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Wade
3 months ago
I think A and D are true.
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