Amazon
SOA-C02 · Question #71
A web service runs on Amazon EC2 instances behind an Elastic Load Balancing (ELB) load balancer. External clients must whitelist specific public IP addresses in their firewalls to access the…
The correct answer is A. Network Load Balancer. Network Loadbalancer work on IP. Application load balancer work on DNS address.
Submitted by deeparc· Mar 30, 2026Networking and Content Delivery
Question
A web service runs on Amazon EC2 instances behind an Elastic Load Balancing (ELB) load balancer. External clients must whitelist specific public IP addresses in their firewalls to access the service. What load balancer or ELB feature should be used for this application?
Options
- ANetwork Load Balancer
- BApplication Load Balancer
- CClassic Load Balancer
- DLoad balancer target groups
How the community answered
(35 responses)- A71% (25)
- B6% (2)
- C6% (2)
- D17% (6)
Explanation
Network Loadbalancer work on IP. Application load balancer work on DNS address.
Topics
#Network Load Balancer#static IP#Elastic IP#load balancer types
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