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Exam Associate Cloud Engineer topic 1 question 129 discussion

Actual exam question from Google's Associate Cloud Engineer
Question #: 129
Topic #: 1
[All Associate Cloud Engineer Questions]

Your Dataproc cluster runs in a single Virtual Private Cloud (VPC) network in a single subnet with range 172.16.20.128/25. There are no private IP addresses available in the VPC network. You want to add new VMs to communicate with your cluster using the minimum number of steps. What should you do?

  • A. Modify the existing subnet range to 172.16.20.0/24.
  • B. Create a new Secondary IP Range in the VPC and configure the VMs to use that range.
  • C. Create a new VPC network for the VMs. Enable VPC Peering between the VMs' VPC network and the Dataproc cluster VPC network.
  • D. Create a new VPC network for the VMs with a subnet of 172.32.0.0/16. Enable VPC network Peering between the Dataproc VPC network and the VMs VPC network. Configure a custom Route exchange.
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Suggested Answer: A 🗳️
by francisco_guerra at Aug. 10, 2020, 4:43 a.m.

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ESP_SAP
Highly Voted 4 years, 7 months ago
Correction. Correct Answers is (A): gcloud compute networks subnets expand-ip-range NAME gcloud compute networks subnets expand-ip-range - expand the IP range of a Compute Engine subnetwork
upvoted 50 times
ccieman2016
2 years, 7 months ago
I think, you can't expand ip range subnet, if there isn't space in VPC. I read this question a lot, VPC CIDR like with 172.16.20.128/25 and there's only one subnet 172.16.20.128/25 inside this VPC, so you can't expand nothing. for me, there's Letter C and D works, but letter D is necessary extra work. LETTER C is right.
upvoted 3 times
FeaRoX
2 years, 2 months ago
There's no information about VPC CIDR, only subnet. You can't tell that there's no space
upvoted 2 times
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BigMac666
1 year, 9 months ago
VPC's DO NOT have IP range limitations. You can only object if 172.16.20.0/25 is in use in the same VPC or in a VPC that this VPC is already peered with. .128/25 expands to .0/24 (i.e. "backwards") So as long as it's free, you're good. In a question like this, it's obvious that the simple answer is the right one, i.e. A - Expansion.
upvoted 3 times
gastonreppeto77
1 year, 6 months ago
- The statement is clear with point 1A and 2A: 1A.- "single Virtual Private Cloud (VPC) network in a single subnet" 2A.- "There are no private IP addresses available in the VPC network." - Question: How can you expand if there is a single VPC with a single subnet and there are no private IP addresses available in the only VPC network ??? - Result: Yes it has limitation, this question is clear, this is and exam, not the real life, we cannot verify anything else and we have the limitation os the statement.
upvoted 1 times
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francisco_guerra
Highly Voted 4 years, 7 months ago
I think is A,
upvoted 37 times
passmepls
4 years, 7 months ago
thank you
upvoted 4 times
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Priyanka109
2 years, 6 months ago
No it can't be as you can't modify ip address but can expand. There is no ip in the existing vpc so you have to create a new vpc and connect it using peering.
upvoted 3 times
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alex70
Most Recent 6 days, 10 hours ago
Selected Answer: B
B is the Best Answer: Minimal steps: Just add a secondary range and assign it to new VMs. No downtime: Existing Dataproc cluster remains unaffected. Same VPC communication: No need for peering or route changes.
upvoted 1 times
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halifax
3 months, 3 weeks ago
Selected Answer: A
The answer is A, but the question is worded badly: "There are no private IP addresses available in the VPC network. " I think they meant to say there are no remaining private IP addresses left to assign to new virtual machine (VM) instances within the specified subnet of the VPC network. it is impossible to suggest that they run out of the class B private IP range because, in the Class B private IP address range, there are approximately 65,534 IP addresses.
upvoted 1 times
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vansbg
3 months, 4 weeks ago
Selected Answer: C
I would go with C because "There are no private IP addresses available in the VPC network."
upvoted 1 times
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deskj
5 months, 2 weeks ago
Selected Answer: A
The question asks for the "minimum number of steps", not what is wrong or right. A is the "minimum number of steps".
upvoted 1 times
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denno22
6 months ago
Selected Answer: A
gcloud compute networks subnets expand-ip-range - expand the IP range of a Compute Engine subnetwork https://cloud.google.com/sdk/gcloud/reference/compute/networks/subnets/expand-ip-range
upvoted 2 times
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Enamfrancis
6 months, 1 week ago
Selected Answer: A
A is correct answer
upvoted 1 times
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RKS_2021
6 months, 2 weeks ago
Selected Answer: A
Expand the subnet
upvoted 1 times
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klayhung
7 months ago
Selected Answer: A
The correct answer is A because increasing the disk size is the simplest way to address the issue. Option C is overly complex and unnecessary.
upvoted 1 times
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klayhung
7 months ago
The correct answer is A, because increasing the disk size is the simplest way to address the issue. Option C is overly complex and unnecessary.
upvoted 1 times
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bad5fad
7 months, 1 week ago
Selected Answer: A
"minimum number of steps". I think A is correct
upvoted 1 times
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Timfdklfajlksdjlakf
7 months, 1 week ago
Selected Answer: A
You can always expand subnets. You can shrink them. So A is the correct answer.
upvoted 1 times
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yehia2221
8 months, 1 week ago
The correct answer is A, in GCP, it is different from AWS or Azure, there is no CIDR assigned for the VPC itself, but each subnet inside the VPC has its own unique CIDR range, that you can expand (with some considtions), I saw some answers based on the logic of AWS and Azure
upvoted 1 times
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ccpmad
10 months, 1 week ago
Selected Answer: A
Somes who vote C are out. Read: the minimum number of steps > Modify the existing subnet range
upvoted 1 times
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omunoz
10 months, 3 weeks ago
It should be A - key "using the minimum number of steps"...
upvoted 1 times
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PiperMe
1 year ago
Selected Answer: A
A. I gave this a test today and it worked as well.
upvoted 4 times
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