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At which OSI/ISO layer is an encrypted authentication between a client software package and a firewall performed?
Suggested Answer: C
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Encrypted authentication is a firewall feature that allows users on an external network to authenticate themselves to prove that they are authorized to access resources on the internal network. Encrypted authentication is convenient because it happens at the transport layer between a client software and a firewall, allowing all normal application software to run without hindrance.
Source: STREBE, Matthew and PERKINS, Charles, Firewalls 24seven, Sybex 2000, Chapter 1: Understanding Firewalls.
12 comments · newest first
DO
Domitila
11 months ago
Really? I always thought it was lower down the stack!
CR
Craig
12 months ago
Nope, definitely Transport layer.
GL
Gladys
12 months ago
Wait, I thought it was the Session layer?
VI
Viva
12 months ago
Totally agree, that's where encryption happens.
LE
Lettie
1 year ago
It's the Transport layer!
AR
Artie
1 year ago
This question feels familiar; I think we practiced one that mentioned the Transport layer for secure connections.
BE
Ben
1 year ago
I remember something about the Session layer being involved in establishing connections, but I can't recall if that's where encryption happens.
LU
Lucia
1 year ago
I think the encrypted authentication happens at the Transport layer, but I'm not entirely sure.
VI
Vilma
1 year ago
I’m leaning towards the Network layer, but I feel like that might be wrong. Encryption seems more related to the Transport layer, right?
JE
Jesus
1 year ago
This looks straightforward, I'd go with option A and create the segment directly from the selection.
ET
Ethan
1 year ago
I feel like I practiced a question similar to this, and the answer was about the Official Endpoint layer. Could it be that?
RA
Rachael
1 year ago
This is a good opportunity to demonstrate my knowledge of JumpCloud and how user management impacts different systems. I feel confident I can nail this question.