PAS-C01 Technology Practice Question
An SAP Basis administrator is deploying a new SAP S/4HANA system on AWS. The architecture uses a multi-AZ deployment for high availability: primary database in us-east-1a, standby in us-east-1b. The ASCS instance is in us-east-1a with a replicated enqueue server (ERS) in us-east-1b. For the application servers, two instances are in us-east-1a and two in us-east-1b. The administrator needs to ensure that the SAP system remains available if an entire Availability Zone fails. What is the MOST important configuration step to achieve this?
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
✓
Enable HANA system replication and configure ASCS with enqueue replication across the two AZs.
High availability across AZs requires both HANA system replication and enqueue replication. HANA system replication ensures the database can fail over to the standby in the other AZ. Enqueue replication (ERS) ensures that the lock table is replicated so that the ASCS can fail over without losing locks. Option A is wrong because Route53 routing only handles DNS resolution, not automatic failover of SAP services. Option B is wrong because an Application Load Balancer does not provide database failover; it distributes traffic to application servers. Option D is wrong because larger instance sizes increase capacity but do not provide high availability in case of AZ failure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure Amazon Route53 with a failover routing policy for the SAP application URLs.
Why it's wrong here
DNS failover alone does not manage SAP service failover.
- ✗
Place an Application Load Balancer in front of the database instances.
Why it's wrong here
ALB does not handle database failover.
- ✓
Enable HANA system replication and configure ASCS with enqueue replication across the two AZs.
Why this is correct
These are the standard SAP HA mechanisms for cross-AZ failover.
- ✗
Use larger instance types for all SAP instances to handle the load.
Why it's wrong here
Instance size does not impact availability.
Visual reference
Go deeper
Related to this question
About these practice questions
This PAS-C01 question is part of Courseiva's 1,616-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.