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Exam AZ-204 topic 1 question 17 discussion

Actual exam question from Microsoft's AZ-204
Question #: 17
Topic #: 1
[All AZ-204 Questions]

Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
You are configuring a web app that delivers streaming video to users. The application makes use of continuous integration and deployment.
You need to ensure that the application is highly available and that the users' streaming experience is constant. You also want to configure the application to store data in a geographic location that is nearest to the user.
Solution: You include the use of Azure Redis Cache in your design.
Does the solution meet the goal?

  • A. Yes
  • B. No
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by NStanhope at July 7, 2021, 9:55 a.m.

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NStanhope
Highly Voted 3 years, 10 months ago
Correct - Instead, use CDN - https://docs.microsoft.com/en-us/azure/architecture/best-practices/cdn
upvoted 38 times
StephanieMii
3 years, 9 months ago
CDN might be best practice but the question is if it meets the goal. I think it does.
upvoted 5 times
ranjitklive
3 years, 9 months ago
Azure Cache for Redis is Distributed, in-memory, scalable solution providing super-fast data access. I think it is more suitable for database query results or session data caching and not content like video/images which you just fetch from azure storage and display.
upvoted 12 times
Veks
3 years, 1 month ago
Hmm, Azure Cache for Redis 6.0 includes Redis streams now... I agree that CDN is correct because u have to ask your self who is writing these questions and why. I'm sure that Redis is the solution that meets the goal, but the problem is, is it a solution form Microsoft exam question writer :)
upvoted 7 times
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ucsdmiami2020
3 years, 5 months ago
Further supporting the use of a CDN (Content Distributed Network), per Microsoft docs URL https://docs.microsoft.com/en-us/azure/architecture/best-practices/cdn#how-and-why-a-cdn-is-used "Streaming video files to the client on demand. Video benefits from the low latency and reliable connectivity available from the globally located datacenters that offer CDN connections. Microsoft Azure Media Services (AMS) integrates with Azure CDN to deliver content directly to the CDN for further distribution."
upvoted 12 times
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Fabiann
Most Recent 7 months, 3 weeks ago
This is an open question : I am agree about the use of Azure CDN about the videos management. But the requirement is : "You need to ensure that the application is highly available". There's nothing about cost etc, so why couldn't both Redis cache & CDN be included in the design ? CDN for videos management and Redis for other stuff. In any case, I will chose B(No) but I was curious to have advice.
upvoted 1 times
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v_arun
11 months ago
Selected Answer: A
Reference: https://docs.microsoft.com/en-in/azure/cdn/
upvoted 2 times
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Santhosh_Kumar
1 year, 8 months ago
Selected Answer: B
Redis caches won't support streaming video content. Azure CDN is suitable.
upvoted 2 times
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longnguyendh
1 year, 9 months ago
The answer should be Azure Content Delivery Network (CDN)
upvoted 1 times
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sayanchq
1 year, 11 months ago
Should be CDN .. Hence No
upvoted 1 times
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UkadikeToch
1 year, 11 months ago
While Redis Cache can improve the performance and scalability of your web application, it may not directly address all the requirements of ensuring high availability and delivering a constant streaming experience to users. However, Redis Cache can be a valuable component within the overall architecture.
upvoted 2 times
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forgetfulalligator
2 years, 2 months ago
Selected Answer: B
To store data in the geographic location nearest to the user, you can use Azure Content Delivery Network (CDN) to cache and deliver the video content. Azure CDN uses a network of edge servers that are distributed globally to cache and deliver content from the location nearest to the user.
upvoted 2 times
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uffuchsi
2 years, 3 months ago
B. No - Redis Stores / Caches backend data. Since this will need to Cache video content, use CDN
upvoted 1 times
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guschess
2 years, 3 months ago
Selected Answer: B
Microsoft CDN. URL https://docs.microsoft.com/en-us/azure/architecture/best-practices/cdn#how-and-why-a-cdn-is-used
upvoted 1 times
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alexein74
2 years, 3 months ago
B. No Using Azure Redis Cache alone would not provide the level of high availability and constant streaming experience that you are looking for. Redis Cache is a in-memory data store that can improve the performance of web applications by caching data that is frequently accessed. However, it does not provide geographic replication or automatic failover to ensure high availability.
upvoted 2 times
garbas
1 year, 7 months ago
Redis Cache has geographic replication: https://learn.microsoft.com/en-us/azure/azure-cache-for-redis/cache-how-to-active-geo-replication I think the key is that Redis is intended for database data, not for video streaming (too much data for in memory cache)
upvoted 1 times
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Sukon_Desknot
2 years, 3 months ago
If you have the money, Azure Redis Cache combined with CDN is an excellent fit
upvoted 1 times
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Topic9
2 years, 4 months ago
CDN is right fit here
upvoted 1 times
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Nedum1983
2 years, 6 months ago
This is correct as it is stated clearly on the "how and why" section here: - https://docs.microsoft.com/en-us/azure/architecture/best-practices/cdn Streaming video files to the client on demand. Video benefits from the low latency and reliable connectivity available from the globally located datacenters that offer CDN connections.
upvoted 1 times
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OPT_001122
2 years, 6 months ago
Selected Answer: B
use CDN
upvoted 1 times
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_philomath_
2 years, 6 months ago
CDN I think.
upvoted 1 times
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Chief2110
2 years, 8 months ago
Selected Answer: B
Correct, CDN!
upvoted 1 times
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