- A
Create VPC, then create subnets, then create and attach Internet Gateway, then create NAT Gateway, then update route tables.
This order ensures that the VPC exists, subnets are available for resources, the Internet Gateway is attached to allow public access, the NAT Gateway is deployed in a public subnet, and finally route tables are configured to route private subnet traffic through the NAT Gateway for outbound internet access.
- B
Create VPC, then create subnets, then create NAT Gateway, then create and attach Internet Gateway, then update route tables.
Why wrong: This is incorrect because the NAT Gateway requires a public subnet with a route to an Internet Gateway to function. If the Internet Gateway is created after the NAT Gateway, the NAT Gateway cannot be properly associated with a public subnet, leading to failure.
- C
Create VPC, then create subnets, then create and attach Internet Gateway, then update route tables, then create NAT Gateway.
Why wrong: This is incorrect because updating route tables before creating the NAT Gateway results in a missing target for the private subnet route. The route tables need the NAT Gateway ID to be specified, which is not available until the NAT Gateway is created.
- D
Create VPC, then create NAT Gateway, then create subnets, then create and attach Internet Gateway, then update route tables.
Why wrong: This is incorrect because the NAT Gateway must be placed in a subnet. Creating the NAT Gateway before subnets exist is impossible, as the subnet ID is required for the NAT Gateway creation step.
VPC with Private Subnets and NAT Gateway: Correct Setup Order
This SCS-C02 practice question tests your understanding of data protection. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Drag and drop the steps to configure a VPC with private subnets and NAT gateway for outbound internet access in the correct order.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create VPC, then create subnets, then create and attach Internet Gateway, then create NAT Gateway, then update route tables.
VPC creation, subnets, internet gateway, NAT gateway, and route table update are required for private subnet internet access.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create VPC, then create subnets, then create and attach Internet Gateway, then create NAT Gateway, then update route tables.
Why this is correct
This order ensures that the VPC exists, subnets are available for resources, the Internet Gateway is attached to allow public access, the NAT Gateway is deployed in a public subnet, and finally route tables are configured to route private subnet traffic through the NAT Gateway for outbound internet access.
Related concept
CIDR notation defines the prefix length.
- ✗
Create VPC, then create subnets, then create NAT Gateway, then create and attach Internet Gateway, then update route tables.
- ✗
Create VPC, then create subnets, then create and attach Internet Gateway, then update route tables, then create NAT Gateway.
- ✗
Create VPC, then create NAT Gateway, then create subnets, then create and attach Internet Gateway, then update route tables.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related SCS-C02 subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Questions learners often ask
What does this SCS-C02 question test?
Data Protection — This question tests Data Protection — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Create VPC, then create subnets, then create and attach Internet Gateway, then create NAT Gateway, then update route tables. — VPC creation, subnets, internet gateway, NAT gateway, and route table update are required for private subnet internet access.
What should I do if I get this SCS-C02 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related SCS-C02 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Last reviewed: Jun 11, 2026
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