PAS-C01 Operations and Maintenance Practice Question
A company runs SAP HANA on AWS using a multi-node scale-out configuration. During a routine maintenance window, the administrator needs to apply an HANA database software update. What is the BEST practice to minimize downtime?
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
✓
Perform a rolling update by updating one node at a time while keeping the system operational.
HANA scale-out supports rolling updates, allowing nodes to be updated one by one while the system remains operational, minimizing downtime. Option B is less optimal because using HSR failover adds complexity and is typically reserved for planned migration or disaster recovery, not routine updates. Option C would cause full downtime as it requires stopping all services. Option D is inefficient for a minor software update as it involves creating a new cluster and migrating data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Perform a rolling update by updating one node at a time while keeping the system operational.
Why this is correct
Correct. Rolling updates allow updating nodes individually without taking the entire system offline, minimizing downtime.
- ✗
Use HANA System Replication to fail over to a standby system, then update the primary.
Why it's wrong here
HANA System Replication (HSR) is a disaster recovery and high availability solution, replicating data to a standby system to minimise downtime during *unplanned outages* or system failures. While tempting for its ability to provide rapid failover, HSR does not facilitate applying a software update across a multi-node scale-out configuration. A failover would simply move the workload to a standby system, which would likely be on the same, or an older, software version, not update the entire distributed landscape.
- ✗
Stop all HANA services, apply the update to all nodes, then restart.
Why it's wrong here
Incorrect. Stopping all HANA services causes complete downtime, which is not minimal.
- ✗
Create a new HANA cluster with the updated version and migrate data.
Why it's wrong here
Incorrect. Creating a new cluster and migrating data is time-consuming and unnecessary for a software update.
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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.