The answer is to increase the number of concurrent data streams in the DRS agent configuration. This is correct because AWS Elastic Disaster Recovery (DRS) uses multiple parallel connections to transfer data, and by default, the agent may use a low number of streams, which throttles throughput for large SAP HANA datasets. Increasing these concurrent streams allows the agent to send more data in parallel, directly improving AWS DRS replication speed for SAP HANA during the initial sync. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of DRS tuning parameters versus common missteps like adjusting staging area size or switching replication modes, which do not address bandwidth utilization. A frequent trap is confusing staging area capacity with throughput, or assuming asynchronous mode is a safe speed boost when it risks data loss for critical SAP workloads. Memory tip: think “more lanes on the highway” — concurrent streams are the lanes, not the size of the rest stop.
PAS-C01 Migration Practice Question
This PAS-C01 practice question tests your understanding of migration. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization is migrating their SAP ERP system to AWS and needs to set up a disaster recovery (DR) site in another AWS region. They want to use AWS Elastic Disaster Recovery (DRS) for SAP HANA. The source HANA system is running on-premises on a physical server. They have installed the DRS agent on the source server. During the initial replication, they notice that the data transfer is very slow. What should they do to improve replication speed?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the number of concurrent data streams in the DRS agent configuration
Option D is correct because DRS can use multiple parallel connections (concurrent streams) to improve throughput. Option A is wrong because RDS is a managed service, not for DR of on-premises HANA. Option B is wrong because increasing staging area size does not improve speed. Option C is wrong because changing to asynchronous mode may cause data loss.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Switch to asynchronous replication mode
Why it's wrong here
Asynchronous replication may not be suitable for DR.
✗
Use Amazon RDS for HANA as the DR target instead of EC2
Why it's wrong here
RDS does not support HANA DR replication via DRS.
✗
Increase the size of the staging area subnet
Why it's wrong here
Staging area size does not affect replication speed.
✓
Increase the number of concurrent data streams in the DRS agent configuration
Why this is correct
More streams can utilize available bandwidth better.
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
OSPF neighbours must agree on key parameters.
Router ID selection can affect neighbour relationships and LSDB output.
OSPF cost influences the preferred path.
A route can appear in OSPF information but not become the installed route.
TExam Day Tips
→Check area mismatch first when OSPF adjacency fails.
→Review passive interfaces when a network is advertised but no neighbour forms.
→Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related PAS-C01 OSPF questions on adjacency and route selection.
Migration — This question tests Migration — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: Increase the number of concurrent data streams in the DRS agent configuration — Option D is correct because DRS can use multiple parallel connections (concurrent streams) to improve throughput. Option A is wrong because RDS is a managed service, not for DR of on-premises HANA. Option B is wrong because increasing staging area size does not improve speed. Option C is wrong because changing to asynchronous mode may cause data loss.
What should I do if I get this PAS-C01 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related PAS-C01 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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Question Discussion
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