PAS-C01 Practice Exam 55 — 20 Questions

Question 1

An organization is migrating a large SAP ERP system using SAP Landscape Virtualization Management (LVM) for system copy and refresh. During the migration, they encounter an error in LVM indicating that the target host is not reachable. What is the most likely cause?

Accepted Answer

The security groups do not allow inbound traffic from the LVM instance to the target host.. Security groups controlling traffic between source and target are a common cause. IAM roles affect AWS API calls, not network connectivity. S3 permissions are irrelevant. AWS DMS is not used.

Answer

The S3 bucket used for backup is not accessible.

Answer

The IAM role assigned to the LVM instance does not have sufficient permissions.

Answer

The AWS Database Migration Service is not configured correctly.

Question 2

A company is migrating a legacy on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB and has a 1-hour maintenance window. The company needs to minimize downtime and ensure data consistency. Which migration strategy should be used?

Accepted Answer

Use AWS Database Migration Service (AWS DMS) with ongoing replication from the source to the target.. Option D is correct because AWS DMS with ongoing replication allows near-zero downtime by continuously replicating changes from the source to the target. Option A is wrong because native Oracle tools may require extended downtime. Option B is wrong because AWS SCT is only for schema conversion, not data migration. Option C is wrong because exporting to flat files requires significant downtime.

Answer

Use Oracle Data Pump to export and import the database during the maintenance window.

Answer

Use AWS Schema Conversion Tool (AWS SCT) to convert the schema and then copy data manually.

Answer

Export the database to flat files, upload to Amazon S3, and then import into RDS.

Question 3

A company is migrating its SAP HANA database to AWS. The migration requires minimal downtime and data consistency. Which THREE steps should the company take to achieve this?

Accepted Answer

Use AWS DMS with change data capture (CDC) for ongoing replication.. Options A, C, and E are correct. Using AWS DMS with CDC allows ongoing replication. Performing a full load first establishes the baseline. Creating target infrastructure in advance is necessary. Option B is wrong because taking a backup and restoring would cause downtime. Option D is wrong because disabling CDC would prevent ongoing replication.

Answer

Take a full backup of the source database and restore it on the target.

Answer

Disable all logging on the source database to reduce overhead.

Question 4

A company is migrating an SAP S/4HANA system to AWS. The migration strategy involves using SAP HANA System Replication (HSR) to replicate the source HANA database to an EC2 instance running HANA. During the final cutover, the replication link breaks and the target database becomes inconsistent. What should the migration team do to recover?

Accepted Answer

Perform a full HSR initial snapshot from the source to the target. Option A is incorrect because using HSR to reinitialize from the source will overwrite the target. Option B is incorrect because from backup may cause data loss and time. Option C is incorrect because AWS DMS does not support HANA-to-HANA replication fully. Option D is correct because a full HSR initial snapshot from the source will bring the target to a consistent state.

Answer

Restart HSR with a delta snapshot from the source

Answer

Restore the target database from an AWS Backup

Answer

Use AWS DMS to replicate remaining changes

Question 5

A company is migrating an SAP BusinessObjects environment to AWS. The migration must ensure that the legacy reporting system remains accessible during the transition. Which AWS service can help facilitate this by allowing the company to redirect traffic gradually?

Accepted Answer

Amazon Route53 with weighted routing policies. AWS Route53 with weighted routing policies can gradually shift traffic from on-premises to AWS. Option A (AWS Global Accelerator) is for performance improvement. Option B (AWS CloudFront) is for content delivery. Option C (AWS Route53 with weighted routing) is correct. Option D (AWS ELB) is for load balancing within AWS.

Answer

Amazon CloudFront

Answer

Elastic Load Balancer (ELB)

Answer

AWS Global Accelerator

Question 6

A company is migrating a SAP system running on IBM AIX to AWS. Which TWO AWS services can be used to capture the server configuration and replicate it in AWS?

Accepted Answer

AWS CloudFormation. Correct options are B and D. AWS SMS can capture server configurations from on-premises and replicate them to AWS as AMIs. AWS CloudFormation can be used to model the infrastructure as code, but for direct replication of an AIX server, SMS is appropriate. Option A is wrong because AWS OpsWorks is for Chef automation. Option C is wrong because AWS CodeDeploy is for application deployment. Option E is wrong because AWS Config is for compliance auditing.

Answer

AWS Config

Answer

AWS OpsWorks

Answer

AWS CodeDeploy

Question 7

A company is migrating a legacy mainframe application to AWS. The application uses COBOL and VSAM files. Which AWS service can best replicate the VSAM file system?

Accepted Answer

Amazon FSx for NetApp ONTAP. Option D is correct because Amazon FSx for NetApp ONTAP supports VSAM via NFS. Option A is incorrect because EFS is a general-purpose file system. Option B is incorrect because S3 is object storage. Option C is incorrect because EBS is block storage attached to EC2.

Answer

Amazon S3 with Object Lock

Answer

Amazon Elastic Block Store (EBS)

Answer

Amazon Elastic File System (EFS)

Question 8

Refer to the exhibit. A CloudFormation template is used to migrate a web server to AWS. The template launches an EC2 instance but does not install the web server. What is the best way to automate the installation?

Accepted Answer

Add a UserData property to the EC2 instance resource.. Option A is correct because UserData can run scripts at launch. Option B is incorrect because CloudWatch Events cannot install software. Option C is incorrect because CodeDeploy requires an agent already installed. Option D is incorrect because SSM Run Command can be used but is not automatic at launch.

Answer

Create a CloudWatch Events rule to trigger a Lambda function after instance launch.

Answer

Use AWS Systems Manager Run Command to install the web server.

Answer

Use AWS CodeDeploy to deploy the web server after the instance is created.

Question 9

A company is migrating its SAP ERP system to AWS. The system has a custom ABAP code that uses RFC calls to an external system. The company wants to test the migrated system in a sandbox environment before the final cutover. What is the best practice for handling the RFC connections during testing?

Accepted Answer

Create a separate sandbox environment that is isolated from production and uses mock endpoints for RFC calls.. Option A is correct because using a sandbox environment disconnected from the production system prevents accidental data changes or impacts. Options B, C, D are incorrect because they either involve production connections or are not best practices.

Answer

Use the same RFC destinations as production but disable the external system.

Answer

Set up a VPN between the sandbox and the external system to test real connectivity.

Answer

Configure the sandbox to use the production RFC endpoints but with read-only access.

Question 10

A company is migrating an SAP environment and wants to automate the provisioning of infrastructure using Infrastructure as Code (IaC). Which AWS service should they use to define and deploy AWS resources?

Accepted Answer

AWS CloudFormation. AWS CloudFormation allows you to define infrastructure as code. OpsWorks is for configuration management. Elastic Beanstalk is for application deployment. CodeDeploy is for code deployment.

Answer

AWS OpsWorks

Answer

AWS CodeDeploy

Answer

AWS Elastic Beanstalk

Question 11

A company is migrating its SAP application from on-premises to AWS. The SAP application uses a shared file system (NFS) for transport directories. Which AWS service should the company use to replace the on-premises NFS?

Accepted Answer

Amazon EFS. Option A is correct because Amazon EFS provides a scalable NFS file system that can be shared across multiple EC2 instances. Option B is wrong because Amazon S3 is object storage, not a file system. Option C is wrong because Amazon FSx for Windows File Server is for SMB, not NFS for Linux. Option D is wrong because Amazon EBS is block storage attached to a single instance.

Answer

Amazon FSx for Windows File Server

Answer

Amazon S3

Answer

Amazon EBS

Question 12

A company is using AWS DMS to migrate an SAP database. The full load is complete, but the CDC latency is high. Which step should the company take to reduce latency?

Accepted Answer

Increase the compute capacity of the DMS replication instance.. Option C is correct because increasing the instance size of the DMS replication instance can improve performance and reduce CDC latency. Option A is wrong because disabling logging would break CDC. Option B is wrong because increasing the target database size may help but not directly reduce DMS latency. Option D is wrong because restarting the task may cause temporary downtime but does not address the root cause.

Answer

Increase the size of the target database instance.

Answer

Restart the DMS replication task.

Answer

Disable change data capture (CDC) on the source database.

Question 13

A company is migrating an SAP Business Suite system to AWS. They are using AWS DMS to replicate data from the on-premises SAP ASE database to Amazon RDS for SAP ASE. After the initial load, the ongoing replication shows a latency of several hours. The source database is heavily used. Which action should the migration team take to reduce replication latency?

Accepted Answer

Increase the source database transaction log size and enable log compression. Option A is incorrect because increasing instance size may help but not address the root cause of log space. Option B is incorrect because using multiple tasks may cause conflicts. Option C is correct because increasing the source database's transaction log size and enabling log compression reduces log waits. Option D is incorrect because disabling logging is not feasible for production.

Answer

Increase the size of the DMS replication instance

Answer

Disable transaction logging on the source database

Answer

Use multiple DMS tasks for parallel replication

Question 14

A company is migrating an SAP system to AWS using the SAP DMO (Database Migration Option) with system move. Which TWO prerequisites must be met before starting the migration?

Accepted Answer

The target EC2 instances and storage must be prepared in advance.. SAP DMO requires that the source system is on a supported SAP NetWeaver release and that the target AWS infrastructure (EC2, storage) is prepared. The source database does not need to be stopped; DMO can run online. A separate AWS account is not a prerequisite. A direct network connection is recommended but not strictly required.

Answer

A separate AWS account must be used for the target system.

Answer

The source database must be stopped during the entire migration.

Answer

A VPN or Direct Connect connection must be established.

Question 15

A company is migrating a SAP HANA database to AWS. Which THREE factors should be considered when choosing the EC2 instance type for SAP HANA?

Accepted Answer

The instance must be listed in the SAP HANA certified instance list.. Correct options are A, B, and D. SAP HANA requires certified instance types, sufficient memory (RAM) for the database, and high network bandwidth for replication. Option C is wrong because GPU is not typically required for HANA. Option E is wrong because EBS-optimized instances are a separate attribute, but not a primary factor; the instance type itself may support EBS optimization.

Answer

The instance must have a GPU for accelerated processing.

Answer

The instance must be EBS-optimized by default.

Question 16

A company is migrating a multi-tier web application to AWS. The web tier uses sticky sessions. The application tier uses a shared session store. Which architecture ensures high availability and scalability?

Accepted Answer

Use an Application Load Balancer with sticky sessions and Amazon ElastiCache for session storage.. Option C is correct because ElastiCache provides a distributed session store, and ALB supports sticky sessions. Option A is incorrect because it lacks a shared session store. Option B is incorrect because CloudFront is CDN. Option D is incorrect because Classic Load Balancer is legacy and lacks advanced features.

Answer

Use an Application Load Balancer with sticky sessions enabled, and store sessions on each EC2 instance.

Answer

Use a Classic Load Balancer with sticky sessions and store sessions in RDS.

Answer

Use Amazon CloudFront with origin failover and store sessions in S3.

Question 17

A company is migrating an on-premises Oracle database to Amazon RDS for Oracle. The database size is 2 TB and the network bandwidth between the on-premises data center and AWS is 100 Mbps. The company needs to minimize the migration time and wants to use AWS DMS. Which approach should they take?

Accepted Answer

Use AWS DMS with AWS Snowball Edge for the full load, then ongoing replication.. Option B is correct because AWS Snowball Edge can be used with AWS DMS to transfer the full load of large databases over a physical device, avoiding long upload times over limited bandwidth. After the full load, ongoing replication via DMS handles changes. Options A and D would take too long over 100 Mbps; Option C is for homogeneous migrations, but the full load over low bandwidth is slow.

Answer

Use AWS Database Migration Service (DMS) with AWS Direct Connect to increase bandwidth.

Answer

Use AWS DMS with a full load over the network, then ongoing replication.

Answer

Use AWS Schema Conversion Tool (SCT) to convert the schema and then AWS DMS for full load.

Question 18

A company is migrating an SAP HANA database from on-premises to AWS. The database is 5 TB and the network link is 500 Mbps. The company has a tight window of 24 hours for the migration. Which TWO methods can be used to transfer the initial data load within the time constraint?

Accepted Answer

Use AWS Snowball Edge to transfer the database backup files to AWS.. Option A (AWS Snowball Edge) and Option D (AWS DataSync over Direct Connect with compression) are correct. Snowball Edge can physically ship data, bypassing network. DataSync with compression can accelerate transfer over Direct Connect. Option B (DMS) over 500 Mbps for 5 TB would take ~23 hours (theoretical) plus overhead, may exceed 24 hours. Option C (S3 multipart upload) same as DMS. Option E (AWS Site-to-Site VPN) is slower than Direct Connect.

Answer

Use AWS DMS to perform a full load directly over the network.

Answer

Use AWS Site-to-Site VPN with jumbo frames enabled.

Answer

Use Amazon S3 multipart upload to upload backup files directly from on-premises.

Question 19

A company is migrating an SAP system that uses a custom ABAP application with a large number of background jobs. They want to ensure that job scheduling is not disrupted during migration. Which AWS service can help manage job scheduling in the cloud?

Accepted Answer

Re-establish job scheduling within the SAP system after migration. AWS managed services do not directly replace SAP's job scheduling. The best practice is to re-establish job scheduling within the SAP system itself. AWS Batch is for batch computing, not SAP jobs. Lambda is for serverless functions. CloudWatch Events can trigger but not manage complex job chains.

Answer

Amazon CloudWatch Events

Answer

AWS Lambda

Answer

AWS Batch

Question 20

A company is migrating its SAP NetWeaver system from on-premises to AWS. The system uses a central instance (ASCS) and multiple dialog instances. The migration must be completed with minimal downtime. Which approach should the company use?

Accepted Answer

Use SAP Software Provisioning Manager (SWPM) to perform a system copy into pre-provisioned EC2 instances with the same sizing.. Option C is correct because using SAP Software Provisioning Manager (SWPM) to perform a system copy into pre-provisioned AWS instances allows minimal downtime. Option A is wrong because AWS MGN replicates at the block level and may not handle SAP application consistency. Option B is wrong because AWS CloudEndure is deprecated and replaced by MGN. Option D is wrong because uninstallation and reinstallation is time-consuming.

Answer

Use AWS CloudEndure Migration to continuously replicate the SAP system.

Answer

Uninstall SAP from on-premises and perform a fresh installation on AWS, then restore the database backup.

Answer

Use AWS Application Migration Service (AWS MGN) to replicate the entire on-premises system to AWS.