ANS-C01 Network Implementation Practice Question
Which TWO of the following are true about using a Network Load Balancer (NLB) with AWS PrivateLink? (Choose 2.)
⚠ Common exam trap
Test-takers frequently confuse NLB's ability to be assigned Elastic IPs with the misconception that NLB can terminate TLS or support SNI, but NLB is a Layer 4 load balancer and does not inspect HTTP headers, making SNI impossible, while TLS termination is an optional feature not inherent to PrivateLink usage.
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
✓
NLB can be assigned Elastic IPs
A Network Load Balancer (NLB) supports the assignment of Elastic IPs (EIPs) per Availability Zone, which provides a static, fixed IP address for the NLB. This is critical for AWS PrivateLink, as the service provider's VPC endpoint service uses the NLB's IP addresses to accept traffic from consumer VPCs, ensuring the endpoint remains reachable even if the underlying instances change.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
NLB supports Server Name Indication (SNI)
Why it's wrong here
SNI is a Layer 7 feature, not supported by NLB.
- ✗
NLB can perform TLS termination
Why it's wrong here
NLB is Layer 4 and does not terminate TLS.
- ✗
NLB supports sticky sessions by default
Why it's wrong here
NLB does not have built-in sticky sessions; it uses source IP.
- ✓
NLB can be assigned Elastic IPs
Why this is correct
NLB supports static IPs via Elastic IPs.
- ✓
NLB can be used as a service provider in a VPC endpoint service
Why this is correct
NLB is the underlying resource for PrivateLink.
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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.