ANS-C01 Network Management and Operations Practice Question
A network team is planning a migration of a legacy application to AWS. The application requires a static IP address for the on-premises firewall whitelist. Which THREE AWS services can provide a static IP address for outbound traffic from a VPC?
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
✓
AWS Direct Connect with a public virtual interface.
Options A, D, and E are correct. A Direct Connect public virtual interface uses a static public IP address for outbound traffic. A NAT Gateway with an Elastic IP provides a static IP for outbound traffic from private subnets. A Network Load Balancer with Elastic IPs per subnet provides static IPs for inbound and outbound traffic. Option B (VPC endpoint for S3) does not provide a static IP; it uses a prefix list. Option C (Application Load Balancer) does not have a static IP by default; it uses dynamic IPs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
AWS Direct Connect with a public virtual interface.
Why this is correct
Traffic over a public VIF comes from a static public IP (the Direct Connect public IP).
- ✗
VPC endpoint (gateway endpoint) for S3.
Why it's wrong here
Gateway endpoints use AWS private IPs, not static public IPs.
- ✗
Application Load Balancer without a static IP.
Why it's wrong here
ALB uses dynamic IPs; static IPs are not guaranteed.
- ✓
Amazon NAT Gateway with an Elastic IP address.
Why this is correct
NAT Gateway uses an EIP for outbound traffic.
- ✓
Network Load Balancer with an Elastic IP address per subnet.
Why this is correct
NLB supports static IPs via EIP.
Visual reference
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ANS-C01 exam.