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PAS-C01 Migration Practice Question

A company is migrating an SAP BusinessObjects environment to AWS. They need to ensure high availability for the web tier and have a requirement to use a single DNS name for end users. Which AWS service should they use to distribute traffic across multiple web servers?

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

Application Load Balancer (ALB) operates at Layer 7 and can distribute HTTP/HTTPS traffic across multiple web servers, providing health checks and a single DNS name. Option A (Amazon CloudFront) is a content delivery network, not a load balancer. Option B (Network Load Balancer) operates at Layer 4 and is ideal for TCP/UDP traffic, not web application traffic. Option C (Amazon Route 53 weighted routing policy) distributes traffic based on weights but does not provide built-in health checks or load balancing features like connection draining and path-based routing.

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 a load balancer.

  • Network Load Balancer

    Why it's wrong here

    Operates at Layer 4, not ideal for web traffic.

  • Amazon Route 53 weighted routing policy

    Why it's wrong here

    DNS-level routing without health checks.

  • Application Load Balancer

    Why this is correct

    Layer 7 load balancer suitable for HTTP/HTTPS.

Visual reference

Client Server SYN (seq=100) SYN-ACK (seq=200, ack=101) ACK (ack=201) Connection established — data transfer begins

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This PAS-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 PAS-C01 exam.