This ANS-C01 practice question tests your understanding of network management and operations. 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.
A company has a VPC with resources that need to access an S3 bucket in the same region. To minimize latency and avoid internet traffic, which configuration should be used?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Use a NAT Gateway in a public subnet and route traffic through it
Why wrong: Adds latency and goes through internet.
Create a VPC Gateway Endpoint for S3
Provides private, low-latency access.
Use VPC peering to connect to an S3 bucket
Why wrong: VPC peering does not provide S3 access.
Create a VPC Interface Endpoint for S3
Why wrong: S3 supports Gateway Endpoints, not Interface Endpoints.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create a VPC Gateway Endpoint for S3
Option B is correct because a VPC Gateway Endpoint for S3 provides private connectivity to S3 without internet. Option A is wrong because NAT Gateway is for internet access. Option C is wrong because AWS PrivateLink for S3 is not supported; Gateway Endpoints are used. Option D is wrong because VPC peering does not provide S3 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
For each option: why learners choose it and why it is or isn't the right answer here.
Use a NAT Gateway in a public subnet and route traffic through it
Why it's wrong here
Adds latency and goes through internet.
Create a VPC Gateway Endpoint for S3
Why this is correct
Provides private, low-latency access.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
CIDR notation defines the prefix length.
Use VPC peering to connect to an S3 bucket
Why it's wrong here
VPC peering does not provide S3 access.
Create a VPC Interface Endpoint for S3
Why it's wrong here
S3 supports Gateway Endpoints, not Interface Endpoints.
Common exam traps
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
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.
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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related ANS-C01 subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Network Management and Operations — This question tests Network Management and Operations — CIDR notation defines the prefix length..
The correct answer is: Create a VPC Gateway Endpoint for S3 — Option B is correct because a VPC Gateway Endpoint for S3 provides private connectivity to S3 without internet. Option A is wrong because NAT Gateway is for internet access. Option C is wrong because AWS PrivateLink for S3 is not supported; Gateway Endpoints are used. Option D is wrong because VPC peering does not provide S3 access.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related ANS-C01 subnetting questions on CIDR, address ranges, and subnet selection.
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
CIDR notation defines the prefix length.
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Last reviewed: Jun 20, 2026
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