PAS-C01 Practice Exam 58 — 20 Questions

Question 1

A company is migrating a critical SAP HANA database from on-premises to AWS. The database is 6 TB, and the migration must be completed within a 4-hour downtime window. The network bandwidth between on-premises and AWS is 1 Gbps. Which approach should the company take to meet the downtime requirement?

Accepted Answer

Use AWS Snowball Edge to physically transfer the data, then use AWS DMS for ongoing replication.. Option B is correct because AWS Snowball Edge can physically transfer the large volume of data faster than over the network given the bandwidth constraint. Option A is wrong because 1 Gbps cannot transfer 6 TB in 4 hours. Option C is wrong because AWS DMS with CDC is not suitable for initial load of such large databases. Option D is wrong because restoring from S3 after upload still requires the initial upload over the network.

Answer

Use AWS SCT to convert the schema, then export to Amazon S3 and restore into HANA on EC2.

Answer

Use AWS DMS with change data capture (CDC) and start with a full load over the network.

Answer

Perform a direct online migration using AWS DMS over the existing network.

Question 2

A company is planning to migrate its SAP NetWeaver system to AWS. Which TWO AWS services can be used to store the SAP transport directory?

Accepted Answer

Amazon EFS. Options A and C are correct. Amazon EFS provides a scalable NFS file system. Amazon FSx for Windows File Server provides SMB file shares. Option B is wrong because Amazon S3 is object storage. Option D is wrong because Amazon EBS is block storage. Option E is wrong because Amazon RDS is a database.

Answer

Amazon S3

Answer

Amazon RDS

Answer

Amazon EBS

Question 3

A company is migrating an SAP ERP system to AWS using an SAP-certified backup/restore method. After restoring the database to Amazon RDS for SAP ASE, the SAP application fails to start with an error 'database connection refused'. The security group allows inbound traffic from the application server. What is the most likely cause?

Accepted Answer

The SAP application is using the wrong database hostname or port. Option A is incorrect because the security group is configured correctly. Option B is incorrect because the DB instance is in the same VPC. Option C is correct because the RDS instance might have a different endpoint than the hostname used by the SAP application; the hostname resolution must match. Option D is incorrect because the RDS instance is running as expected.

Answer

The RDS instance is in a 'stopped' state

Answer

The security group does not allow outbound traffic

Answer

The RDS instance is in a different VPC than the application server

Question 4

Refer to the exhibit. A company is migrating an SAP application server running on Windows to AWS. They launched an EC2 instance with Windows Server. After launching, they run the command and get the output shown. They need to install SAP software. What additional step is required before installing SAP?

Accepted Answer

Join the EC2 instance to an Active Directory domain. Option A is correct because SAP on Windows requires joining a domain (or using a local domain) for Kerberos authentication. Option B is incorrect because the instance is already running. Option C is incorrect because SAP installation does not require a specific instance type beyond requirements. Option D is incorrect because the security group can be modified anytime.

Answer

Change the instance type to a memory-optimized instance

Answer

Stop and start the instance to initialize the Windows OS

Answer

Modify the security group to allow SAP-specific ports

Question 5

A company is migrating its SAP landscape to AWS. They need to choose a migration method for each system. Which TWO factors are most important to consider when selecting a migration method for SAP systems? (Choose TWO.)

Accepted Answer

Source and target platform (OS, DB). Option A is correct because the SAP release and database version determine compatibility with AWS services. Option C is correct because the source and target platforms (OS, DB) affect migration tools. Option B is incorrect because the number of users is less relevant. Option D is incorrect because cost is important but not a primary technical factor for method selection. Option E is incorrect because backup frequency is not a key factor for method selection.

Answer

Total cost of migration

Answer

Frequency of database backups

Answer

Number of SAP users

Question 6

A company is migrating an SAP HANA database from on-premises to AWS using SAP HANA System Replication (HSR). They have set up the replication but the target database is not in sync. Which THREE configuration items should the migration team verify? (Choose THREE.)

Accepted Answer

The hostname resolution between source and target. Option A is correct because HSR requires the same hostname or proper name resolution. Option C is correct because the HANA version must be compatible (same major version). Option E is correct because the system replication port must be open. Option B is incorrect because the source and target can have different storage types. Option D is incorrect because the HANA license is not required for replication (it's per system).

Answer

The SAP HANA license is activated on the target

Answer

The storage type (SSD vs HDD) is identical

Question 7

Refer to the exhibit. A migration engineer is setting up an IAM policy for an AWS DMS task that will replicate data from an on-premises SAP ASE database to Amazon RDS for SAP ASE. The engineer wants to ensure the DMS task can be created and started. What is missing from this policy?

Accepted Answer

Permissions to create DMS endpoints (dms:CreateEndpoint). Option A is correct because DMS needs 'dms:CreateEndpoint' to create source/target endpoints. Option B is incorrect because the policy already allows DescribeReplicationTasks. Option C is incorrect because KMS is not used here. Option D is incorrect because the policy allows StartReplicationTask, but without endpoints, it won't work.

Answer

Permissions to describe DMS replication instances

Answer

Permissions to start and stop replication tasks

Answer

Permissions to use AWS Key Management Service (KMS) for encryption

Question 8

An organization is migrating an SAP BusinessObjects system to AWS. The system uses a Sybase ASE database. They need to minimize downtime. Which migration strategy is most appropriate?

Accepted Answer

Use SAP Landscape Reorganization (LaMa) to automate the migration.. The best approach is to use SAP Landscape Reorganization (LaMa) which supports Sybase ASE and can automate the migration with minimal downtime. DMS does not support Sybase ASE as a source. HSR is for SAP HANA, not Sybase. Export/import is manual and leads to longer downtime.

Answer

Use AWS Database Migration Service (DMS) with ongoing replication.

Answer

Perform an export/import of the database to AWS.

Answer

Set up HANA System Replication (HSR) to the AWS target.

Question 9

During the migration of an SAP NetWeaver system, the team notices that the application server performance is degraded after migrating to AWS. The system uses AWS EBS volumes for storage. Which of the following is the most likely cause of the performance degradation?

Accepted Answer

The EBS volumes have insufficient provisioned IOPS for the workload.. If EBS volumes are not provisioned with sufficient IOPS, the application server may experience performance degradation. EBS-optimized instances and appropriate volume types are important. EBS volumes are typically designed for durability, and encryption does not cause performance degradation.

Answer

The EBS volumes are using the wrong volume type.

Answer

The EBS volumes are not encrypted.

Answer

The EBS volumes are not EBS-optimized.

Question 10

A company is migrating an on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB and has a 4-hour maintenance window. Which AWS service should be used to minimize downtime during the migration?

Accepted Answer

AWS Database Migration Service (DMS). AWS DMS supports ongoing replication to minimize downtime. Option A (AWS SMS) is for server migration, not database. Option B (AWS DataSync) is for file storage. Option D (AWS MGN) is for server migration.

Answer

AWS Server Migration Service (SMS)

Answer

AWS Application Migration Service (MGN)

Answer

AWS DataSync

Question 11

A company is migrating a legacy SAP ERP system to AWS. The system uses a custom kernel and has strict latency requirements. The SAP application servers must be placed in the same AWS region as the database. Which migration strategy should be used?

Accepted Answer

Rehost. Rehost (lift-and-shift) is appropriate when moving SAP systems with custom kernels, as it minimizes changes. Option A (Replatform) involves changes to the platform. Option B (Refactor) involves re-architecting. Option C (Repurchase) involves replacing the software.

Answer

Replatform

Answer

Refactor

Answer

Repurchase

Question 12

A company is migrating a web application to AWS and wants to improve security. The application uses a classic three-tier architecture. Which TWO security measures should the company implement?

Accepted Answer

Use AWS WAF to protect the web tier. Using security groups as a virtual firewall and AWS WAF to protect against common web exploits are both security best practices. Option A (Direct internet access for database tier) is insecure. Option B (S3 Transfer Acceleration) is for speed, not security. Option E (Public subnets for all tiers) is insecure.

Answer

Allow direct internet access to the database tier

Answer

Use Amazon S3 Transfer Acceleration

Answer

Place all tiers in public subnets

Question 13

A company is migrating its on-premises Oracle database to Amazon RDS for Oracle. They need to minimize downtime and ensure data consistency. Which AWS service should they use for the initial data load and ongoing replication?

Accepted Answer

AWS Database Migration Service (DMS). AWS DMS can perform a full load and then continuously replicate changes to keep the target database in sync with minimal downtime. Option B is correct because DMS is designed for heterogeneous migrations with ongoing replication. Option A is incorrect because SCT only converts schemas and doesn't handle replication. Option C is incorrect because DataSync is for file-based transfers. Option D is incorrect because Snowball is for offline data transfer.

Answer

AWS Snowball Edge

Answer

AWS DataSync

Answer

AWS Schema Conversion Tool (SCT)

Question 14

Refer to the exhibit. A migration team is using AWS DMS to replicate data from an on-premises SAP ASE database to Amazon RDS for SAP ASE. The DMS task fails with the error shown. The source database is reachable from the DMS replication instance. What is the most likely cause?

Accepted Answer

The ODBC driver configuration on the DMS replication instance is incorrect. Option A is incorrect because the error mentions ODBC connection failure, not privileges. Option B is correct because the source database ODBC driver or settings may be misconfigured. Option C is incorrect because the task is already using the correct engine. Option D is incorrect because the network is reachable.

Answer

The source database port is blocked by a firewall

Answer

The DMS task is using the wrong source engine type (e.g., SQL Server instead of SAP ASE)

Answer

The DMS replication instance does not have the required IAM permissions

Question 15

A company is migrating an SAP system to AWS and wants to use an existing AWS Direct Connect connection for the migration. The on-premises network team reports that the Direct Connect link is consistently at 80% utilization during business hours. What should the company do to ensure a successful migration without impacting production traffic?

Accepted Answer

Schedule the migration during off-peak hours to avoid high utilization.. The correct approach is to schedule the migration during off-peak hours when the link utilization is lower to avoid congestion. Increasing bandwidth may not be feasible immediately. Using VPN over the internet may add latency and security concerns. Snowball is for large data volumes, but if the data volume is manageable, off-peak migration is simpler.

Answer

Increase the bandwidth of the Direct Connect link.

Answer

Use AWS Site-to-Site VPN over the internet as an alternative.

Answer

Use AWS Snowball Edge to transfer the data physically.

Question 16

A company is migrating a large SAP Business Warehouse (BW) system to AWS. The system uses SAP HANA as the database. The migration plan involves using SAP HANA System Replication (HSR) for near-zero downtime. During the initial synchronization, the network bandwidth is limited to 1 Gbps. The source database is 5 TB. How long will the initial synchronization approximately take, assuming no other bottlenecks?

Accepted Answer

Approximately 12 hours. 5 TB = 5,000 GB = 40,000 Gb (since 1 GB = 8 Gb). At 1 Gbps, time = 40,000 seconds ≈ 11.1 hours. This simple calculation ignores overhead, but among the options, 12 hours is the closest. The other options are unrealistic.

Answer

Approximately 2 hours

Answer

Approximately 6 hours

Answer

Approximately 24 hours

Question 17

A company is migrating a legacy application to AWS. The application requires a static IP address that must not change after migration. Which networking component should be used to ensure the application's public IP remains consistent?

Accepted Answer

Elastic IP address. An Elastic IP address is a static public IPv4 address that can be associated with an EC2 instance or a Network Load Balancer. Option A (Internet Gateway) is used for VPC internet access but does not provide a static IP. Option B (NAT Gateway) is for outbound traffic. Option D (VPC Peering) is for connecting VPCs.

Answer

Internet Gateway

Answer

VPC Peering

Answer

NAT Gateway

Question 18

A company is migrating a file server to AWS and needs a scalable, highly available file storage solution that supports the SMB protocol. Which AWS service should be used?

Accepted Answer

Amazon FSx for Windows File Server. Amazon FSx for Windows File Server supports SMB protocol and provides fully managed Windows file servers. Option A (Amazon EFS) supports NFS, not SMB. Option B (Amazon S3) is object storage. Option D (AWS Storage Gateway) can present file shares but is not a fully managed file server.

Answer

Amazon Elastic File System (EFS)

Answer

AWS Storage Gateway

Answer

Amazon Simple Storage Service (S3)

Question 19

A company is migrating an SAP S/4HANA system to AWS. The system requires high availability for the database and application layers. Which THREE components should the company configure to achieve high availability for SAP S/4HANA on AWS?

Accepted Answer

Pacemaker cluster for SAP Central Services. The correct components for SAP S/4HANA HA include Pacemaker for cluster management, Amazon EFS for shared file systems, and multi-AZ deployment for database. Option A (Single AZ) does not provide HA. Option D (AWS Transit Gateway) is for networking.

Answer

Single Availability Zone deployment

Answer

AWS Transit Gateway

Question 20

An organization is migrating a legacy Windows-based .NET application to AWS. The application currently uses IIS and SQL Server on a single server. They want to minimize changes to the application code. Which migration strategy is most appropriate?

Accepted Answer

Rehost the application on Amazon EC2 with the same OS and database. Rehosting (lift-and-shift) involves moving the application to AWS as-is, typically using EC2. This minimizes code changes. Option D is correct because it involves minimal modifications. Option A (refactor) requires significant code changes. Option B (replatform) may require some configuration changes but still involves modifications. Option C (repurchase) means buying a new product, which is not minimal change.

Answer

Replatform by moving to Amazon RDS for SQL Server and Elastic Beanstalk

Answer

Refactor the application to use a microservices architecture

Answer

Repurchase by moving to a SaaS-based application