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Exam ANS-C00 topic 1 question 215 discussion

Exam question from Amazon's ANS-C00
Question #: 215
Topic #: 1
[All ANS-C00 Questions]

What is the minimum number of subnets for an RDS subnet group?

  • A. 3
  • B. 4
  • C. 1
  • D. 2
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Suggested Answer: D 🗳️
This allows for high availability and failover in case an RDS instance goes down.
by JamesTR at Jan. 29, 2021, 1:43 a.m.
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eeghai7thioyaiR4
Highly Voted 3 years, 8 months ago
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.WorkingWithRDSInstanceinaVPC.html Ans: D (2 subnets) You need at least 2 subnets for RDS, in two different AZ, because RDS is a master-slave setup. The master will be in a subnet in one zone, while the slave will live in the other
upvoted 7 times
panlm
3 years, 5 months ago
D is correct. https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.WorkingWithRDSInstanceinaVPC.html#:~:text=Each%20DB%20subnet%20group%20should%20have%20subnets%20in%20at%20least%20two%20Availability%20Zones%20in%20a%20given%20AWS%20Region
upvoted 1 times
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saibhargavvegi
Most Recent 2 years, 11 months ago
4 subnets is right
upvoted 1 times
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AzureDP900
3 years, 4 months ago
2 subnets Required . D is right
upvoted 1 times
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ChauPhan
3 years, 7 months ago
D. 2 subnets
upvoted 1 times
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Nimolee
3 years, 7 months ago
C is correct. P 355, paragraph 2 of ANS study guide
upvoted 3 times
Huy
3 years, 7 months ago
Please try it on AWS Console. It is free
upvoted 3 times
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JamesTR
3 years, 8 months ago
Does the question make sense ? If I recall correctly, I do not specify a subnet when crating an RDS database. Only VPC. Am I right ?
upvoted 1 times
smithyt
3 years, 8 months ago
You can specify a Subnet for RDS as its a instance so it needs to placed
upvoted 1 times
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wahlbergusa
3 years, 7 months ago
If you dont then it automatically picks up the subnets randomly.
upvoted 1 times
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