Try 12 AWS Certified Advanced Networking - Specialty (ANS-C01) sample questions and practice-test preview prompts on hybrid connectivity, VPC design, routing, security, automation, and troubleshooting.
ANS-C01 is AWS Certified Advanced Networking - Specialty. It validates the ability to design, implement, manage, and secure AWS and hybrid network architectures at scale.
The ANS-C01 page includes original sample questions and exam guidance while full IT Mastery practice is being prioritized. Use it to review the exam snapshot, topic coverage, and related live networking and AWS practice options.
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ANS-C01 questions usually reward the option that meets connectivity, routing, scale, security, automation, and operations constraints without creating brittle hybrid network dependencies.
| Domain | Weight |
|---|---|
| Network Design | 30% |
| Network Implementation | 26% |
| Network Management and Operation | 20% |
| Network Security, Compliance, and Governance | 24% |
Try these 12 original sample questions for AWS ANS-C01. They are designed for self-assessment and are not official exam questions.
What this tests: scalable VPC connectivity
A company has 30 VPCs across several accounts. The network team wants centralized routing between VPCs and a shared inspection VPC without creating and maintaining a full mesh of peering connections. Which design is the best fit?
Best answer: C
Explanation: Transit Gateway is built for hub-and-spoke routing across many VPCs and accounts. Route tables can separate routing domains and send selected traffic through inspection. Full-mesh peering becomes operationally brittle, a single VPC weakens account and network boundaries, and public routing between private workloads is unnecessary exposure.
What this tests: hybrid connectivity resilience
A financial firm uses AWS Direct Connect for production connectivity to AWS. The firm needs a lower-cost backup path if the Direct Connect circuit is unavailable. What should the network architect add?
Best answer: A
Explanation: A site-to-site VPN can provide encrypted backup connectivity when Direct Connect is unavailable. With dynamic routing, the lower-preference VPN route can take over during failure. NAT gateways and S3 endpoints solve different VPC egress or service-access problems and do not back up a hybrid WAN circuit.
What this tests: DNS failover routing
A public application runs in two AWS Regions behind separate load balancers. Users should be sent to the primary Region unless health checks fail, then sent to the standby Region. Which Route 53 policy is most appropriate?
Best answer: D
Explanation: Route 53 failover routing supports an active-passive pattern when paired with health checks. Weighted routing can distribute traffic but does not express primary and standby intent as directly. Geolocation solves location-specific routing, and simple routing is not enough for health-based failover behavior.
What this tests: private AWS service access
Instances in private subnets must download objects from Amazon S3 without using public IP addresses, NAT gateways, or internet routing. Which option should the architect use?
Best answer: B
Explanation: A gateway VPC endpoint for S3 lets private subnet resources reach S3 over the AWS network without public internet routing or NAT. Bucket policies can further restrict endpoint access. A bastion proxy and load balancer add unnecessary components and do not match the native private-service pattern.
What this tests: Transit Gateway segmentation
Security requires development VPCs to reach shared services but not production VPCs. All VPCs are attached to the same Transit Gateway. What is the cleanest control?
Best answer: C
Explanation: Transit Gateway route-table association and propagation control which attachments can route to each other. That is the correct network-layer segmentation mechanism. IAM does not filter packet routing, and a single shared route table makes separation harder to reason about.
What this tests: hybrid DNS resolution
On-premises clients must resolve private hosted zone names for services inside AWS, and VPC resources must resolve selected on-premises domains. Which pair of services is most relevant?
Best answer: A
Explanation: Route 53 Resolver inbound endpoints let on-premises DNS forward queries into AWS, while outbound endpoints and rules let VPCs forward selected domains to on-premises resolvers. The other options address content delivery, edge security, or data transfer rather than hybrid DNS.
What this tests: troubleshooting security group versus network ACL behavior
A private EC2 instance can initiate outbound HTTPS traffic, but return traffic is intermittently blocked after a network ACL change. Security groups were not changed. What is the most likely issue?
Best answer: D
Explanation: Network ACLs are stateless, so both request and response directions must be allowed, including ephemeral ports for return traffic. Security groups are stateful and automatically allow return traffic for established flows. IAM and Route 53 are not packet-filter controls for this symptom.
What this tests: centralized egress inspection
A company wants all outbound internet traffic from application VPCs to pass through managed firewall rules before reaching NAT gateways. Which architecture is the strongest fit?
Best answer: B
Explanation: AWS Network Firewall in an inspection VPC, combined with Transit Gateway routing, supports centralized traffic inspection and controlled egress. Host firewalls alone are harder to govern, DNS does not inspect all packet flows, and security groups do not replace route tables.
What this tests: BGP route preference
A company has two Direct Connect connections to the same AWS network, one primary and one standby. The standby should be used only if the primary path fails. Which routing concept is most relevant?
Best answer: C
Explanation: Direct Connect routing decisions use BGP. Attributes such as AS path prepending, local preference on the customer side, and advertised prefixes can influence path selection. S3 ownership, Lambda concurrency, and DNSSEC do not define hybrid network path preference.
What this tests: network observability
An application team says traffic from one subnet to another is being rejected, but they cannot identify the rejected source and destination pairs. Which AWS feature should be enabled first?
Best answer: D
Explanation: VPC Flow Logs capture accepted and rejected IP traffic metadata for VPCs, subnets, or network interfaces. They are the right first signal for source, destination, ports, and accept/reject status. Trusted Advisor, S3 logs, and CloudTrail S3 data events do not provide VPC packet-flow evidence.
What this tests: multi-account network automation
A platform team must deploy a consistent baseline of VPC endpoints, route tables, and security controls across many AWS accounts. The team wants repeatable, reviewed changes. What is the best approach?
Best answer: A
Explanation: Advanced networking work at scale requires repeatability and review. Infrastructure as code with a deployment pipeline reduces drift, supports change history, and makes multi-account baselines auditable. Manual clicks and screenshots do not create enforceable network state.
What this tests: private connectivity to third-party services
A SaaS provider exposes a service through AWS PrivateLink. A customer wants private connectivity from its VPC without routing through the public internet and without giving the provider network-level access to the whole VPC. What should the customer create?
Best answer: B
Explanation: PrivateLink uses interface VPC endpoints to privately consume endpoint services. It avoids public internet routing and does not require broad bidirectional routing like VPC peering. NAT gateways and public subnet routes do not provide the same private, service-scoped connectivity model.
flowchart LR
A["Connectivity requirement"] --> B["Hybrid or cloud-only path"]
B --> C["Routing and segmentation"]
C --> D["Resilience and failover"]
D --> E["Security and observability"]
E --> F["Cost and operations review"]
Use this map when an Advanced Networking scenario includes several plausible AWS services. The best answer usually starts with connectivity requirements, then validates routing, segmentation, resilience, security, and operational visibility.
| Topic | Strong answer pattern | Common trap |
|---|---|---|
| Hybrid connectivity | Match VPN, Direct Connect, transit, routing, and failover to the requirement | Choosing Direct Connect for every hybrid scenario without latency, scale, or SLA need |
| VPC routing | Check route tables, propagation, attachments, and asymmetric paths | Troubleshooting security groups before confirming routing |
| Segmentation | Use accounts, VPCs, subnets, security groups, NACLs, and routing boundaries | Treating one large flat VPC as simpler and safer |
| DNS | Align private hosted zones, resolvers, forwarding, and split-horizon behavior | Assuming public DNS changes fix private name-resolution problems |
| Resilience | Design multiple paths, Availability Zones, and tested failover | Adding redundancy without a health-check or route-failover plan |
| Observability | Use flow logs, metrics, packet-level evidence where appropriate, and route analysis | Guessing from symptoms without packet or route evidence |
Use this page to review ANS-C01 sample questions and use the Notify me form for updates. The related pages below help you compare adjacent IT Mastery AWS practice options before choosing what to study next.
| If you need to practice… | Best page | Why |
|---|---|---|
| AWS architecture and networking context | SAA-C03 | Good live route for VPC, connectivity, resilience, and service-selection trade-offs. |
| AWS operations and monitoring | SOA-C03 | Reinforces operations, monitoring, remediation, and network-adjacent troubleshooting. |
| networking fundamentals | Network+ N10-009 | Best live route for baseline network concepts before advanced AWS networking. |