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Palo Alto Networks PSE-SoftwareFirewall Exam - Topic 4 Question 39 Discussion

Posted by Adela on May 26, 2026 at 01:35 PM

Which two features of CN-Series firewalls protect east-west traffic between pods in different trust zones? (Choose two.)

Suggested Answer: A, D

Intrusion Prevention System (IPS): The CN-Series firewalls incorporate an Intrusion Prevention System to detect and prevent exploits and attacks on applications and systems. This feature is essential for securing east-west traffic, as it can identify and block threats within the data center traffic between pods in different trust zones.

Layer 7 Visibility: CN-Series firewalls provide Layer 7 (application layer) visibility, enabling deep inspection of application traffic. This allows the firewall to understand and enforce policies based on the application and its behavior, rather than just ports and protocols, ensuring comprehensive security for east-west traffic within a Kubernetes environment.


Palo Alto Networks CN-Series Datasheet: CN-Series Datasheet

Palo Alto Networks CN-Series Documentation: CN-Series Documentation

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19 comments · newest first
DA
Dannie 15 days ago
Good luck everyone!
AR
Arminda 20 days ago
I need to review IPS more.
AR
Arthur 25 days ago
Same here! Layer 7 visibility is key.
RO
Ronald 1 month ago
I’m leaning towards A and D as well.
SU
Suzi 1 month ago
But C is for external traffic, not east-west.
MA
Margart 1 month ago
I feel like C could be relevant too.
DA
Dannie 2 months ago
B is more about management, not protection.
AR
Arminda 2 months ago
I’m not sure about D. What about B?
AR
Arthur 2 months ago
I agree, A is definitely important.
SU
Suzi 2 months ago
Tough question! I think A and D.
DE
Denna 2 months ago
I’m surprised ELB isn’t one of the answers. Thought it was key for security!
LU
Luisa 2 months ago
Yup, IPS and Layer 7 visibility are definitely the ones!
SE
Serina 3 months ago
Wait, are you sure about that? I thought ELB was also important for traffic management.
EA
Earlean 3 months ago
Totally agree with that! Those features are crucial for east-west traffic.
LO
Lorita 3 months ago
A) Intrusion prevention system (IPS) and D) Layer 7 visibility are the right choices.
DE
Dexter 3 months ago
I feel like both IPS and Layer 7 visibility make sense for protecting east-west traffic, but I could be mixing it up with another topic.
LI
Lisbeth 3 months ago
I’m a bit confused; I thought communication with Panorama was more about management rather than directly protecting traffic.
DU
Dusti 3 months ago
I remember practicing a question like this, and I think Layer 7 visibility was mentioned as important for traffic inspection.
ER
Erick 4 months ago
I think the IPS is definitely one of the features, but I'm not sure about the second one.
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