PAS-C01 Operations and Maintenance Practice Question
Which TWO components are required to set up SAP HANA System Replication (HSR) on AWS for high availability? (Choose TWO.)
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
✓
A dedicated replication network interface with low latency.
SAP HANA System Replication (HSR) on AWS requires two EC2 instances in different Availability Zones (B) to provide failure domain isolation, and a dedicated replication network interface with low latency (A) to handle replication traffic separately from client traffic. Shared storage like Amazon EFS (D) is not required because HSR uses direct log shipping from primary to secondary instance, not a shared file system. The replication is done over the network, making shared storage unnecessary.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A dedicated replication network interface with low latency.
Why this is correct
A dedicated replication network interface ensures low latency and high throughput for HSR traffic, and is a required component.
- ✓
Two EC2 instances in different Availability Zones.
Why this is correct
Two EC2 instances in different Availability Zones provide high availability across failure domains, a fundamental requirement for HSR.
- ✗
An Amazon S3 bucket for storing backup logs.
Why it's wrong here
S3 is not required for HSR; log replication is direct between instances.
- ✗
Shared storage (e.g., Amazon EFS) for log replication.
Why it's wrong here
Shared storage is not required for HSR; HSR uses direct log shipping between primary and secondary instances over the network.
- ✗
A Network Load Balancer to distribute database connections.
Why it's wrong here
HSR does not require a load balancer; clients connect directly or via DNS.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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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.