SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a critical application to AWS and must ensure high availability across multiple Availability Zones. Which TWO AWS services can be used to distribute traffic across instances in multiple AZs?
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
✓
Application Load Balancer (ALB)
The correct answers are C (Application Load Balancer) and E (Network Load Balancer). Both ALB and NLB are regional load balancers that can distribute traffic across targets in multiple Availability Zones, providing high availability. CloudFront (A) is a global content delivery network, not a regional load balancer. Route 53 (D) is a DNS service that can route traffic but does not perform load balancing across instances. Global Accelerator (B) uses edge locations and typically routes to a regional load balancer, but it is not itself a load balancer that distributes traffic across AZs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon CloudFront
Why it's wrong here
CDN, not regional load balancing.
- ✗
AWS Global Accelerator
Why it's wrong here
Sits at edge, not directly a regional load balancer.
- ✓
Application Load Balancer (ALB)
Why this is correct
ALB distributes traffic across targets in multiple AZs.
- ✗
Amazon Route 53
Why it's wrong here
DNS service, not for traffic distribution across instances.
- ✓
Network Load Balancer (NLB)
Why this is correct
NLB distributes traffic across targets in multiple AZs.
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Same concept, more angles
1 more way this is tested on SAP-C02
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Variation 1. A company is migrating a critical application to AWS and needs to ensure high availability across two Availability Zones. The application runs on EC2 instances behind an Application Load Balancer (ALB). The database is an on-premises SQL Server that will be migrated later. Which architecture provides high availability for the application tier during the migration?
medium- ✓ A.Deploy EC2 instances in two AZs behind an ALB with cross-zone load balancing enabled.
- B.Deploy EC2 instances in a single AZ with an Auto Scaling group.
- C.Deploy EC2 instances in two AZs behind a Network Load Balancer (NLB).
- D.Use Amazon Route 53 weighted routing to distribute traffic to instances in two AZs.
Why A: ALB distributes traffic to instances in two AZs. Option B is wrong because a single AZ is not highly available. Option C is wrong because a Network Load Balancer is for TCP/UDP, not HTTP. Option D is wrong because Route 53 alone does not provide load balancing.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 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 SAP-C02 exam.