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Cisco 300-420 Exam - Topic 8 Question 110 Discussion

Actual exam question for Cisco's 300-420 exam
Question #: 110
Topic #: 8
[All 300-420 Questions]

Which AES mode should be used in a Cisco SD-WAN environment that includes multicast applications?

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Suggested Answer: C

by Luis at Apr 06, 2025, 07:00 AM

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Josphine
3 months ago
Not sure if GCM is the only way to go here...
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Denise
3 months ago
CBC is still widely used, though.
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Gail
4 months ago
Wait, isn't ECB a bad option for security?
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Sena
4 months ago
I agree, GCM offers better performance.
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Brittani
4 months ago
GCM is the best choice for multicast!
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Nobuko
4 months ago
I feel like GCM is the best option here, especially since it provides both encryption and authentication, but I hope I’m not mixing it up with another mode.
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Daryl
5 months ago
I’m a bit confused; I thought ECB was not recommended due to its security issues, but I can't recall why exactly.
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Huey
5 months ago
I remember practicing with CBC and CFB modes, but I feel like GCM is more efficient for SD-WAN scenarios.
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Vanda
5 months ago
I think GCM is the right choice for multicast because it supports parallel processing, but I'm not entirely sure.
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Filiberto
5 months ago
I'm confident that the answer is C. GCM is the most appropriate AES mode for a Cisco SD-WAN environment with multicast applications due to its ability to handle that type of traffic efficiently and securely.
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Val
5 months ago
Ah, this is a tricky one. I'll need to think through the security requirements and performance considerations for each mode to make the right choice here.
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Tawna
5 months ago
Hmm, I'm not sure about this one. I'll need to review the differences between the AES modes to determine the best option for a Cisco SD-WAN environment with multicast applications.
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Ryann
6 months ago
I think the answer is C. Galois/Counter Mode (GCM) is designed to handle multicast traffic, which is important in a Cisco SD-WAN environment.
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Lenora
11 months ago
I'm not sure, but I think Cipher Block Chaining (CBC) could also be a good option for Cisco SD-WAN.
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Herminia
11 months ago
I'll go with C. GCM. Gotta keep that data safe, especially with multicast. Although, maybe I should have gone with the Galactic Crypto Mode instead, just to spice things up a bit.
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Felton
10 months ago
User 4: GCM it is then, can't go wrong with strong encryption for multicast applications.
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Tess
10 months ago
User 3: I think GCM is the best choice too, it's important to prioritize data safety.
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Amber
10 months ago
User 2: Yeah, GCM provides both encryption and authentication, perfect for keeping data secure.
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Alethea
10 months ago
User 1: I agree, GCM is the way to go for multicast applications.
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Claudia
11 months ago
I agree with In, GCM provides both encryption and authentication.
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Phyliss
11 months ago
Definitely GCM. It's the industry standard for secure multicast these days. ECB is a big no-no, everyone knows that!
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Emerson
11 months ago
Hmm, I'd have to say option C. GCM is designed for authenticated encryption, which is perfect for Cisco's SD-WAN with multicast.
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Marleen
10 months ago
GCM provides both encryption and authentication, making it ideal for secure communication in this environment.
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Margart
10 months ago
I agree, GCM is the best choice for multicast applications in Cisco SD-WAN.
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Bette
11 months ago
I'm pretty sure GCM is the way to go for secure multicast in a Cisco SD-WAN environment. It's fast and versatile.
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In
12 months ago
I think we should use Galois/Counter Mode (GCM) for multicast applications.
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