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Cisco 350-201 Exam - Topic 11 Question 27 Discussion

An API developer is improving an application code to prevent DDoS attacks. The solution needs to accommodate instances of a large number of API requests coming for legitimate purposes from trustworthy services. Which solution should be implemented?
D) Apply a limit to the number of requests in a given time interval for each API. If the rate is exceeded, block access from the API key temporarily and return a 429 HTTP error code.
A) Restrict the number of requests based on a calculation of daily averages. If the limit is exceeded, temporarily block access from the IP address and return a 402 HTTP error code.
B) Implement REST API Security Essentials solution to automatically mitigate limit exhaustion. If the limit is exceeded, temporarily block access from the service and return a 409 HTTP error code.
C) Increase a limit of replies in a given interval for each API. If the limit is exceeded, block access from the API key permanently and return a 450 HTTP error code.

Cisco 350-201 Exam - Topic 11 Question 27 Discussion

Actual exam question for Cisco's 350-201 exam
Question #: 27
Topic #: 11
[All 350-201 Questions]

An API developer is improving an application code to prevent DDoS attacks. The solution needs to accommodate instances of a large number of API requests coming for legitimate purposes from trustworthy services. Which solution should be implemented?

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Suggested Answer: D

by Cassi at May 04, 2022, 10:38 AM

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Marla
10 months ago
Surprised that 450 is a real HTTP code, never heard of it before!
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Jennie
10 months ago
I like B, it sounds more automated and user-friendly.
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Janae
11 months ago
Isn't blocking the API key permanently a bit extreme?
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Arlyne
11 months ago
I disagree, A could work too if implemented correctly.
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Sylvia
11 months ago
Option D seems like the best choice for rate limiting.
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Tawna
11 months ago
I'm pretty confident about this one. Serverless Workflow supports request-response, synchronization, and asynchronous modes, so the answer must be D. Waiting for callback mode.
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Anna
11 months ago
This question seems straightforward, but I want to make sure I understand the relationship between parent and child lots before selecting my answers.
upvoted 0 times
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