PAS-C01 Migration Practice Question
A company is migrating an SAP BusinessObjects environment to AWS. The migration must ensure that the legacy reporting system remains accessible during the transition. Which AWS service can help facilitate this by allowing the company to redirect traffic gradually?
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
✓
Amazon Route53 with weighted routing policies
Amazon Route53 with weighted routing policies can gradually shift traffic from on-premises to AWS by assigning weights to DNS records. Option A (Amazon CloudFront) is a content delivery network, not for traffic shifting. Option B (Elastic Load Balancer) distributes traffic within AWS, not for gradual migration. Option C (AWS Global Accelerator) improves performance but does not provide weighted routing. Option D (Amazon Route53 with weighted routing policies) is correct because it allows incremental traffic redirection during migration.
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
CloudFront is a CDN, not for DNS traffic shifting.
- ✗
Elastic Load Balancer (ELB)
Why it's wrong here
ELB balances traffic within AWS, not for gradual migration from on-premises.
- ✗
AWS Global Accelerator
Why it's wrong here
Global Accelerator improves performance but does not support gradual traffic shifting with weighted routing.
- ✓
Amazon Route53 with weighted routing policies
Why this is correct
Weighted routing allows gradual redirection of traffic.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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