PAS-C01 Migration Practice Test 14 — 15 Questions

Question 1

Refer to the exhibit. An administrator runs the CLI command to check the status of SAP application instances. The output shows two instances. The administrator needs to stop the running instance and start the stopped instance for a planned migration. Which command should they run?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

aws ec2 start-instances --instance-ids i-0abcd1234efgh5678 && aws ec2 stop-instances --instance-ids i-0dcba4321hgfe8765. The administrator needs to stop the running instance and start the stopped instance. The running instance is identified by the instance ID that appears in the 'running' state, and the stopped instance by the ID in the 'stopped' state. In the exhibit, the running instance is i-0dcba4321hgfe8765 and the stopped instance is i-0abcd1234efgh5678. Therefore, the correct command starts the stopped instance (i-0abcd1234efgh5678) and stops the running instance (i-0dcba4321hgfe8765), which matches option B.

Answer

aws ec2 start-instances --instance-ids i-0dcba4321hgfe8765 && aws ec2 stop-instances --instance-ids i-0abcd1234efgh5678

Answer

aws ec2 start-instances --instance-ids i-0abcd1234efgh5678 && aws ec2 stop-instances --instance-ids i-0abcd1234efgh5678

Answer

aws ec2 stop-instances --instance-ids i-0dcba4321hgfe8765 && aws ec2 start-instances --instance-ids i-0dcba4321hgfe8765

Question 2

A company is migrating their SAP ERP system running on an on-premises IBM Db2 database to Amazon RDS for Db2. The migration must have minimal downtime. The current database size is 2 TB. The network link between on-premises and AWS is 1 Gbps. The migration team plans to use AWS DMS with a full load followed by ongoing replication. During a test migration, they notice that the full load takes longer than expected, causing the change data capture (CDC) lag to grow. They need to adjust the migration approach to meet the downtime window. What should they do?

Accepted Answer

Increase the compute capacity of the DMS replication instance. Increasing the DMS replication instance compute capacity directly addresses the bottleneck causing the full load to run slowly and CDC lag to grow. A larger instance provides more CPU, memory, and network throughput for both the full load and CDC tasks, reducing the time the source must remain available and keeping CDC lag within the downtime window.

Answer

Use multiple DMS tasks in parallel for the full load

Answer

Create an RDS read replica to offload the initial load

Answer

Use AWS Snowball to transfer the initial load and then resume CDC

Question 3

A company is migrating their SAP HANA database to AWS. The on-premises HANA system is 10 TB and runs on a physical server. They need to minimize the migration time and cannot afford more than 4 hours of downtime. The network bandwidth is limited to 500 Mbps. They decide to use AWS Snowball Edge to transfer the data. After copying the data to Snowball, they ship it to AWS. However, upon receiving the data, they find that the checksum verification fails. What should they do to resolve this issue and complete the migration within the downtime window?

Accepted Answer

Contact AWS Support to perform a remote data verification and import. If the checksum verification fails, AWS Support can perform a remote data verification and potentially import the data without needing to reship the Snowball, which would exceed the 4-hour downtime window. Option A is incorrect because re-copying and reshipping would take days, not fitting the downtime requirement. Option B is incorrect because even incremental transfer via DMS over a 500 Mbps link would take too long for 10 TB. Option D is incorrect because ordering Direct Connect can take weeks to provision, which also exceeds the allowed downtime.

Answer

Re-copy the data to a new Snowball and reship

Answer

Use AWS DMS over the existing network to transfer the data incrementally

Answer

Order an AWS Direct Connect connection to increase bandwidth

Question 4

An organization is migrating their SAP ERP system running on SAP ASE (Sybase) to Amazon RDS for SAP ASE. They have a 5 TB database and a 1 Gbps network. They need to keep the migration window under 6 hours. They plan to use AWS DMS with full load and CDC. During the full load, they notice that the DMS replication instance is using 100% CPU and the full load is progressing slowly. What should they do to meet the migration window?

Accepted Answer

Increase the instance size of the DMS replication instance. Increasing the DMS replication instance size provides more CPU and memory, which directly speeds up the full load process. Option B is incorrect because AWS Snowball is used for offline data transfer and would not help with ongoing replication; it also introduces additional setup and transfer time, making it unsuitable for a <6 hour window. Option C is incorrect because the bottleneck is the DMS replication instance's CPU, not the source database's compute capacity—increasing source resources does not alleviate DMS resource constraints. Option D is incorrect because disabling CDC would cancel ongoing replication, requiring a full reload later, thus increasing downtime beyond the target window.

Answer

Switch to using AWS Snowball for the initial load

Answer

Increase the compute capacity of the source database

Answer

Disable CDC and perform only a full load

Question 5

A company is migrating their SAP Business Warehouse (BW) system to AWS. They want to use Amazon S3 for BW near-line storage (NLS). They have set up an S3 bucket and configured the SAP BW NLS connection. However, when they test the connection, it fails. What is the MOST likely cause?

Accepted Answer

Missing AWS Storage Gateway File Gateway setup between SAP and S3. SAP BW near-line storage (NLS) requires an S3-compatible interface. AWS Storage Gateway File Gateway provides a file system interface that SAP can mount and use as NLS, bridging the gap between SAP's NFS-based requirements and Amazon S3 object storage. Option A is incorrect: KMS encryption does not block SAP access; SAP can be configured to access encrypted buckets. Option B is incorrect: S3 bucket names are globally unique, so a name mismatch with region is not possible. Option C is incorrect: Multipart uploads are enabled by default for all S3 buckets and are not a prerequisite for NLS.

Answer

The S3 bucket is encrypted with AWS KMS and SAP cannot access it

Answer

The S3 bucket name does not match the AWS region

Answer

The S3 bucket is not configured for multipart uploads

Question 6

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?

Accepted Answer

Increase the number of concurrent data streams in the DRS agent configuration. AWS Elastic Disaster Recovery (DRS) uses a replication agent that streams block-level changes from the source to a staging area in AWS. The agent's configuration includes a setting for the number of concurrent data streams, and increasing this value allows more parallel throughput during initial sync, directly addressing slow replication. This is the tunable knob for replication performance.

Answer

Switch to asynchronous replication mode

Answer

Use Amazon RDS for HANA as the DR target instead of EC2

Answer

Increase the size of the staging area subnet

Question 7

A company is migrating their SAP CRM system to AWS. They are using AWS DMS to migrate the database from Oracle to Amazon RDS for Oracle. The database size is 1 TB. They have a 1 Gbps network link. They plan to use full load and CDC. During the full load, they notice that the DMS task is running but the progress is very slow. They check CloudWatch metrics and see that the DMS replication instance CPU is at 90% and the write IOPS on the target RDS instance is 5000. The target RDS instance is a db.r5.large (2 vCPU, 16 GB RAM). What should they do to improve the full load performance?

Accepted Answer

Upgrade the target RDS instance to a larger size with higher IOPS. The correct option is B: upgrade the target RDS instance to a larger size with higher IOPS. The CloudWatch metrics show the target RDS instance is the bottleneck—write IOPS is at 5000, which is the maximum baseline IOPS for a db.r5.large (gp2/io1 baseline), so the full load is throttled by the target's storage throughput, not the replication instance. Moving to a larger instance class with higher IOPS capacity (or provisioning more IOPS) directly relieves this write bottleneck and speeds up the full load. Option A is not the best fix because the replication instance CPU at 90% is a symptom of waiting on the slow target writes, and scaling it up would not address the storage IOPS ceiling. Option C is irrelevant since task logging overhead is negligible compared to the IOPS limit, and Option D would not help because the source Oracle instance is not the reported bottleneck.

Answer

Increase the DMS replication instance size

Answer

Disable the DMS task logging to reduce overhead

Answer

Increase the size of the source Oracle instance

Question 8

A company is migrating a large SAP HANA database (5 TB) from on-premises to AWS. The migration must have minimal downtime and use AWS DMS for ongoing replication. Which TWO actions should be taken to ensure the migration completes successfully? (Choose 2.)

Accepted Answer

Use Amazon S3 as an intermediate target for initial load. Option B is correct because using Amazon S3 as an intermediate target for the initial load offloads the bulk 5 TB data transfer from the DMS replication instance, allowing DMS to focus on ongoing change data capture (CDC) replication and thereby minimizing downtime during the cutover. Option C is correct because a large SAP HANA database requires a DMS replication instance with substantial CPU, memory, and network throughput; an x1e.32xlarge (high-memory, high-network instance) provides the resources needed to handle the initial load and ongoing replication without bottlenecks. Option A is incorrect because a t2.large is a burstable, low-resource instance that cannot handle 5 TB of data replication or the memory/CPU demands of SAP HANA CDC, leading to failures or severe throttling. Option D is incorrect because Multi-AZ on the target RDS instance provides high availability for the target database but does not directly ensure the DMS migration completes successfully or reduce migration downtime. Option E is incorrect because disabling automatic backup retention on the target database does not improve migration performance or reliability and may violate data protection requirements.

Answer

Use a t2.large instance for the DMS replication instance to reduce cost

Answer

Enable Multi-AZ on the target RDS instance

Answer

Disable automatic backup retention on the target database

Question 9

Refer to the exhibit. An administrator is setting up a migration from on-premises VMware VMs to AWS using AWS Server Migration Service (SMS). The IAM policy shown is attached to the SMS service role. The migration fails with an error indicating insufficient permissions. Which additional permission is required for SMS to successfully replicate VMs?

Accepted Answer

ec2:ImportImage. AWS Server Migration Service (SMS) uses the VM Import/Export service to convert and import on-premises VM images into Amazon EC2. The IAM policy attached to the SMS service role must include ec2:ImportImage to allow the service to create an AMI from the uploaded VM image. Without this permission, the replication job fails with an authorization error. Thus, ec2:ImportImage is the required additional permission.

Answer

ec2:DeleteSnapshot

Answer

ec2:DescribeRegions

Answer

ec2:CreateSnapshot

Question 10

A company is migrating a fleet of 200 on-premises Windows servers to AWS. The servers run a mix of custom applications and Microsoft SQL Server databases. The migration plan includes using AWS Server Migration Service (SMS) for the servers and AWS Database Migration Service (DMS) for the databases. During the initial replication, several servers fail with the error 'Unable to create AMI: Insufficient permissions'. The IAM role used by SMS has the following policy: {"Version":"2012-10-17","Statement":[{"Effect":"Allow","Action":["ec2:Describe*","ec2:CreateImage","ec2:RegisterImage","s3:PutObject","s3:GetObject","s3:ListBucket"],"Resource":"*"}]}. Which change should be made to resolve the error?

Accepted Answer

Add ec2:CreateSnapshot action to the policy. AWS SMS creates an AMI during replication by taking a snapshot of the replicated volume, so the IAM role requires ec2:CreateSnapshot in addition to ec2:CreateImage and ec2:RegisterImage. The current policy lacks ec2:CreateSnapshot, causing the 'Unable to create AMI: Insufficient permissions' error.

Answer

Remove the s3:PutObject action from the policy

Answer

Configure a VPC endpoint for EC2

Answer

Add ec2:ImportImage action to the policy

Question 11

A company is migrating an SAP S/4HANA system to AWS. The system uses SAP HANA with a large in-memory database. The migration team plans to use AWS Database Migration Service (AWS DMS) to replicate data from the on-premises SAP HANA to Amazon RDS for SAP HANA. During testing, they notice that the replication is slower than expected and some changes are not being captured. The team needs to ensure that all changes are replicated with minimal latency. Which action should be taken to improve the replication performance and reliability?

Accepted Answer

Configure AWS DMS to use ongoing replication with change data capture (CDC) and ensure the source SAP HANA database has the necessary triggers and logging enabled.. To ensure all changes are replicated with minimal latency, AWS DMS must be configured for ongoing replication using change data capture (CDC). For SAP HANA, this requires that the source database has the necessary logging and triggers enabled. Without these, DMS cannot capture all changes, resulting in missing data and slow replication. Verifying and enabling these settings is critical.

Answer

Use AWS Snowball Edge to transfer the initial data and then set up AWS DMS for ongoing replication.

Answer

Increase the size of the AWS DMS replication instance and enable multi-AZ.

Answer

Increase the number of AWS DMS replication tasks and parallel load threads.

Question 12

A company is migrating a critical SAP ERP system to AWS. The system uses an Oracle database on-premises and will be migrated to Amazon RDS for Oracle. The company requires near-zero downtime during the cutover and must ensure data consistency. The database is 5 TB in size. Which migration strategy should be used?

Accepted Answer

Use AWS Database Migration Service (AWS DMS) with ongoing replication to migrate the database, then cut over during a maintenance window.. AWS Database Migration Service (AWS DMS) with ongoing replication is the best choice for migrating a large Oracle database to Amazon RDS for Oracle with minimal downtime. It supports continuous replication, allowing the target to stay synchronized until cutover. Other options either are not supported, require downtime, or involve additional complexity without the managed benefits of AWS DMS.

Answer

Take an offline backup of the on-premises database, transfer it to Amazon S3, and restore it to Amazon RDS for Oracle using Amazon RDS procedures.

Answer

Use Oracle GoldenGate to replicate the on-premises database to an Amazon RDS for Oracle DB instance, then perform a switchover.

Answer

Use Oracle Data Guard to replicate the on-premises database to an Amazon RDS for Oracle DB instance, then perform a switchover.

Question 13

A company is migrating a very large SAP Business Warehouse (BW) system on SAP HANA to AWS. The database is 6 TB in size, and the migration window is limited to 8 hours. The network bandwidth between the on-premises data center and AWS is 1 Gbps. The company wants to minimize downtime and ensure a consistent migration. Which approach should they use?

Accepted Answer

Take an SAP HANA database backup, transfer it to AWS using AWS Snowball Edge, restore it to an EC2 instance, and then apply delta changes using SAP HANA delta backups.. With 6 TB of data and only 1 Gbps bandwidth, transferring the initial backup over the network would take much longer than 8 hours. AWS Snowball Edge allows offline transfer of the bulk data, and delta backups capture changes since the full backup. Applying delta backups during the migration window ensures consistency with minimal downtime. The other options either do not support SAP HANA or cannot meet the time constraints.

Answer

Set up SAP HANA System Replication between on-premises and AWS over the 1 Gbps network, and perform a takeover during the migration window.

Answer

Use AWS Database Migration Service (DMS) with SAP HANA as a source and target to replicate data continuously, then cut over during the migration window.

Answer

Use AWS Snowball Edge to transfer the SAP HANA database backup to AWS, restore it, and then apply delta changes using SAP HANA System Replication.

Question 14

A company is migrating a mission-critical SAP ERP system to AWS. The system uses an Oracle database and runs on AIX. The company wants to move to a Linux-based environment on AWS to reduce costs and improve agility. The migration must ensure data integrity and minimal downtime. Which migration approach should be used?

Accepted Answer

Use SAP Software Update Manager (SUM) with Database Migration Option (DMO) to migrate to SAP HANA on AWS.. SAP Software Update Manager (SUM) with Database Migration Option (DMO) is designed to migrate SAP systems and databases in one step, including changing the database platform. It supports migrating from Oracle on AIX to SAP HANA on Linux on AWS, ensuring data integrity and minimal downtime. This is the optimal approach for this scenario.

Answer

Re-install the SAP system on Linux on AWS and use SAP Migration Monitor to transfer data.

Answer

Perform a homogeneous system copy using SAP SWPM to migrate to Oracle on Linux on AWS.

Answer

Use AWS Database Migration Service (AWS DMS) to replicate the Oracle database to Amazon RDS for Oracle on AWS.

Question 15

A company is migrating its SAP NetWeaver ABAP-based production system to AWS. The system uses a distributed installation with a central instance, a database instance, and multiple dialog instances. The migration project requires that the SAP system downtime be limited to a single weekend. The company has already performed a homogeneous system copy to a new on-premises environment in the past. Which migration approach should be used to meet the downtime requirement?

Accepted Answer

Use SAP Software Provisioning Manager (SWPM) to perform a homogeneous system copy using a backup/restore of the database to the new AWS environment.. The correct approach is a homogeneous system copy using backup/restore, as it is a proven SAP migration method that limits downtime to the required window. The company's prior experience with this method reduces risk. Other options either introduce unnecessary complexity, do not address SAP-specific requirements, or are slower and more error-prone.

Answer

Use AWS Application Migration Service (MGN) to replicate the SAP servers to AWS and perform a cutover during the weekend.

Answer

Perform a database export/import using SAP kernel utilities, then reinstall the SAP application servers on AWS.

Answer

Perform a heterogeneous system copy using SAP Database Migration Option (DMO) with the source database and target database being the same type.