PAS-C01 Technology Practice Question
A company has a mission-critical SAP S/4HANA system running on AWS with a multi-node HANA database. The system must be highly available with an RPO of 0 and an RTO of less than 30 minutes. The database uses SAP HANA System Replication (HSR) with synchronous replication. Which THREE components are essential for this high-availability architecture?
⚠ Common exam trap
A common misconception is that an Application Load Balancer is needed for database-level high availability, but in SAP HANA HSR, the replication is handled directly between database nodes, and traffic distribution is not a requirement for the database tier.
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
✓
An ENSA2 (Enqueue Replication 2) enqueue server.
SAP S/4HANA with a multi-node HANA database requires the ENSA2 (Enqueue Replication 2) enqueue server to replicate the application-level lock table synchronously between the active and standby central services (ASCS and ERS) instances. This ensures that in the event of a failover, the enqueue locks are preserved, preventing data inconsistencies and enabling a seamless transition within the required RTO of less than 30 minutes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
An Application Load Balancer to distribute traffic between HANA nodes.
Why it's wrong here
HANA uses direct client connections; ALB is not used.
- ✗
A VPN connection between the two Availability Zones.
Why it's wrong here
AWS internal networking between AZs does not require VPN.
- ✓
An ENSA2 (Enqueue Replication 2) enqueue server.
Why this is correct
ENSA2 provides high availability for the enqueue service.
- ✓
A secondary HANA instance in a different Availability Zone.
Why this is correct
Provides redundancy across AZs.
- ✓
A cluster manager such as Pacemaker to orchestrate failover.
Why this is correct
Pacemaker monitors and automates failover.
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.