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Exam AWS Certified Solutions Architect - Professional topic 1 question 144 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional
Question #: 144
Topic #: 1
[All AWS Certified Solutions Architect - Professional Questions]

Doug has created a VPC with CIDR 10.201.0.0/16 in his AWS account. In this VPC he has created a public subnet with CIDR block 10.201.31.0/24.
While launching a new EC2 from the console, he is not able to assign the private IP address 10.201.31.6 to this instance.
Which is the most likely reason for this issue?

  • A. Private address IP 10.201.31.6 is currently assigned to another interface
  • B. Private IP address 10.201.31.6 is reserved by Amazon for IP networking purposes.
  • C. Private IP address 10.201.31.6 is blocked via ACLs in Amazon infrastructure as a part of platform security.
  • D. Private IP address 10.201.31.6 is not part of the associated subnet's IP address range.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
In Amazon VPC, you can assign any Private IP address to your instance as long as it is: Part of the associated subnet's IP address range
Not reserved by Amazon for IP networking purposes Not currently assigned to another interface
Reference:
http://aws.amazon.com/vpc/faqs/
by miracle at Feb. 26, 2020, 9:08 a.m.
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miracle
Highly Voted 3 years, 7 months ago
Answer is A.
upvoted 7 times
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amministrazione
Most Recent 8 months, 3 weeks ago
A. Private address IP 10.201.31.6 is currently assigned to another interface
upvoted 1 times
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SkyZeroZx
1 year, 10 months ago
Selected Answer: A
Answer is A. is overlap beteween interface IP
upvoted 1 times
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cldy
3 years, 4 months ago
A. Private address IP 10.201.31.6 is currently assigned to another interface
upvoted 3 times
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01037
3 years, 6 months ago
A is correct
upvoted 2 times
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karoth_p
3 years, 6 months ago
Sorry, it's the only way to submit NEW QUESTION: A company is deploying a public-facing global application on AWS using Amazon CloudFront. The application communicates with an external system. A solutions architect needs to ensure the data is secured during end-to-end transit and at rest. What combination of steps will satisfy these requirements? (Select THREE.) A. Create a public certificate for the required domain in AWS Certificate Manager and deploy it to CloudFront, an Application Load Balancer, and Amazon EC2 Instances. B. Acquire a public certificate from a third-party vendor and deploy it to CloudFront, an Application Load Balancer and Amazon EC2 instances. C. Provision Amazon EBS encypted volumes using AWS KMS and ensure explicit encryption of data when writing to Amazon EBS. D. Provision Amazon EBS encypted volumes using AWS KMS. E. Use SSL or encrypt data while communicating with the external system using a VPN. F. Communicate with the external system using plaintext and use the VPN to encrypt data in transit.
upvoted 2 times
karoth_p
3 years, 6 months ago
A, D, E, for me.
upvoted 1 times
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wind
3 years, 6 months ago
I think ADE is correct.
upvoted 2 times
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MrCarter
3 years, 6 months ago
Should be B,D,E as you want https all the way through to EC2. If it was just between CloudFront and ALB then it would be OK to use ACM
upvoted 3 times
LiamNg
2 years, 11 months ago
Agreed. Similiar question Same Answers @Question #244 Topic 1
upvoted 1 times
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MichaelHuang
3 years, 6 months ago
Should be A B. only first 4 and last one C. Not applicable D. 10.201.31.6 is part of 10.201.31.0/24.
upvoted 4 times
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Bassel
3 years, 6 months ago
answer is D
upvoted 2 times
fcbflo
3 years, 6 months ago
@Bassel: 10.201.31.6 is part of the CIDR "10.201.31.0/24" and also of CIDR 10.201.0.0/16 ... so "D" "Private IP address 10.201.31.6 is not part of the associated subnet's IP address range." could NOT be the Option ...!
upvoted 4 times
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ronyb
3 years, 6 months ago
10.201.31.6 is part of the subnet. Answer is A
upvoted 1 times
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Stec1980
3 years, 6 months ago
It's definitely not D...10.201.31.0/24 allows 10.201.31.0 - 10.201.31.255 with reservations on .0 - .3 and .255. It's most likely that .6 is in use elsewhere already...Answer is A.
upvoted 3 times
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C (25%)
B (20%)
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