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Cisco 300-440 Exam - Topic 2 Question 10 Discussion

Refer to the exhibits.Refer to the exhibits. An engineer needs to configure a site-to-site IPsec VPN connection between an on premises Cisco IOS XE router and Amazon Web Services (AWS). Which two IP prefixes should be used to configure the AWS routing options? (Choose two.)
A) 30.30.30.0/30 and E) 40.40.40.0/24
B) 20.20.20.0/24
C) 30.30.30.0/24
D) 50.50.50.0/30

Cisco 300-440 Exam - Topic 2 Question 10 Discussion

Actual exam question for Cisco's 300-440 exam
Question #: 10
Topic #: 2
[All 300-440 Questions]

Refer to the exhibits.

Refer to the exhibits. An engineer needs to configure a site-to-site IPsec VPN connection between an on premises Cisco IOS XE router and Amazon Web Services (AWS). Which two IP prefixes should be used to configure the AWS routing options? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: A, E

The correct answer is A and E because they are the IP prefixes that match the tunnel interfaces on the Cisco IOS XE router. The AWS routing options should include the local and remote IP prefixes that are used for the IPsec tunnel endpoints. The other options are either the public IP addresses of the routers or the LAN subnets that are not relevant for the IPsec tunnel configuration.Reference:=Designing and Implementing Cloud Connectivity (ENCC) v1.0,Configure IOS-XE Site-to-Site VPN Connection to Amazon Web Services,Site-to-Site VPN with Amazon Web Services


by Sheron at Apr 27, 2024, 01:59 PM

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Jesusa
9 months ago
I’ve seen E used in similar setups, could work!
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Alton
9 months ago
C and D seem off, I’d stick with A and B.
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Anjelica
10 months ago
Surprised that 30.30.30.0/30 isn't an option!
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Burma
10 months ago
Definitely agree with B, but not sure about E.
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German
10 months ago
I think B and E are the right choices.
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Dominque
10 months ago
I’m a bit confused about the /24 options. I feel like they could be valid too, but I need to double-check the routing requirements for AWS.
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Sharika
11 months ago
I think the /30 subnets are typically used for point-to-point links, so maybe A and D could be the right choices?
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Louvenia
11 months ago
This question feels similar to the practice one we did on AWS routing options. I think it might be either A and D, but I can't recall the specifics.
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Walton
11 months ago
I remember we discussed the importance of using the right subnet mask for VPN configurations, but I'm not sure which prefixes are correct here.
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Valentin
11 months ago
This seems like a tricky one. I'll need to review the information carefully and make sure I understand the relationship between the VPN configuration and the AWS routing options.
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Margery
11 months ago
Okay, let's think this through step-by-step. I'll need to analyze the IP prefixes and subnet masks to see which ones match the requirements for the AWS routing options.
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Laquanda
11 months ago
Hmm, I'm a bit unsure about this one. I'll need to make sure I understand the requirements for the AWS routing options and how they relate to the VPN configuration.
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Miesha
11 months ago
This looks like a straightforward VPN configuration question. I'll need to carefully review the IP prefixes and subnet masks to determine the correct options.
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Charlene
11 months ago
I've got a good handle on VPN configurations, so I think I can tackle this one. I'll just need to double-check the IP prefixes to make sure I select the right options.
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Talia
11 months ago
Hmm, I'm a bit unsure about this one. I'll need to think through the different options carefully to determine the best purpose of this mapping exercise.
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Polly
11 months ago
This is a tricky one, but I think I've got it. Revision control is about managing changes to the model, so options A and C don't seem relevant. I'll go with B and E.
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Martha
11 months ago
I think I've seen something about the Distribution Constructor being able to create ISO images for the Automated Installer, so I'll definitely check that one. Not sure about the other capabilities though, I'll have to think through this one.
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Magda
11 months ago
This question is right up my alley! I'm familiar with the data protection laws in Hong Kong, so I'm confident I can identify the appropriate penalty for Kelvin's actions. I just need to carefully review the scenario and the answer choices to make sure I select the correct option.
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Nana
11 months ago
Could it be that all the options are relevant? I feel like they all intersect in some way.
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Gianna
2 years ago
And maybe 20.20.20.0/24 for broader network scope?
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Cassie
2 years ago
It's more specific, suitable for a point-to-point link.
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Ria
2 years ago
Why /30 though? Can you explain?
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Cassie
2 years ago
I think 30.30.30.0/30 makes sense.
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Gianna
2 years ago
Yeah, the IP prefixes are confusing.
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Raylene
2 years ago
This site-to-site VPN question is tricky.
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