PAS-C01 Design of SAP Workloads on AWS Practice Test 18 — 15 Questions

Question 1

A company is migrating an SAP NetWeaver application to AWS. The application consists of a central services instance, multiple dialog instances, and a database instance. The company wants to ensure high availability across Availability Zones. Which design should they implement?

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

Accepted Answer

Implement a highly available central services instance using an Amazon EFS file system for shared storage, deploy the database with SAP HANA system replication across two Availability Zones, and use a Network Load Balancer for dialog instances.. A highly available SAP NetWeaver architecture on AWS requires redundancy for central services, database, and dialog instances across multiple Availability Zones. Using Amazon EFS for shared storage enables the central services instance to fail over, SAP HANA system replication protects the database, and a Network Load Balancer ensures dialog instances remain accessible. This comprehensive approach eliminates single points of failure and ensures business continuity.

Answer

Deploy all instances in a single Availability Zone and use Amazon EBS snapshots for backup.

Answer

Deploy the central services instance in one Availability Zone, the database instance in another, and use an Application Load Balancer to distribute traffic to dialog instances in multiple Availability Zones.

Answer

Use an Auto Scaling group to manage dialog instances across multiple Availability Zones and place the central services and database instances in a single Availability Zone.

Question 2

A company runs SAP HANA on an EC2 instance with 4 TB of memory. The company needs to reduce the time required to restart the HANA database after an operating system reboot while keeping the data in memory. Which AWS feature should be used?

Accepted Answer

Use the SAP HANA fast restart feature with a persistent memory file system on an Amazon EBS io2 Block Express volume.. SAP HANA fast restart preserves the column store in a persistent memory area so that after a reboot the data can be reloaded from that area rather than from disk. On AWS, the fast restart file system must be placed on a supported high-performance EBS volume such as io2 Block Express, which retains the data across the restart and significantly reduces the time to resume operations.

Answer

Enable EC2 hibernation on the instance so that the in-memory state is saved to the EBS root volume and restored on start.

Answer

Enable an EC2 Auto Scaling group to keep a stopped instance in a warm pool and swap it in when the primary instance reboots.

Answer

Configure the HANA instance to use an Amazon S3 bucket as the data volume so that the column store is loaded directly from S3 after a restart.

Question 3

A company is planning to migrate its SAP HANA database to AWS. The database is currently 2 TB in size and is expected to grow to 4 TB within two years. The company requires a storage solution that provides high performance, durability, and the ability to take consistent snapshots for backup. Which TWO storage options should be used to meet these requirements? (Choose two.)

Accepted Answer

Amazon Elastic Block Store (Amazon EBS) gp3 volumes with provisioned IOPS and throughput.. Amazon EBS gp3 and io2 Block Express volumes are both validated by SAP for HANA database storage on AWS. gp3 offers cost-effective performance with independently provisioned IOPS and throughput, while io2 Block Express provides higher IOPS and sub-millisecond latency for demanding workloads. Both support snapshots for backup. The other options are either object or file storage services not suitable for HANA's block storage requirements.

Answer

Amazon Elastic File System (Amazon EFS) with Provisioned Throughput.

Answer

Amazon FSx for Lustre with SSD storage.

Answer

Amazon Simple Storage Service (Amazon S3) with S3 Intelligent-Tiering.

Question 4

A company runs SAP S/4HANA on AWS with a single HANA database instance on an EC2 instance. To improve availability, they want to add a secondary HANA database instance in a different Availability Zone using SAP HANA System Replication. Which AWS service should be used to automate the failover and ensure a virtual IP address is moved to the secondary instance?

Accepted Answer

AWS CloudFormation with a cluster resource agent and overlay IP. For SAP HANA System Replication on AWS, a cluster resource agent (such as the SAPHanaSR resource agent) integrated with a high-availability cluster is required to automate failover and manage the virtual IP. AWS CloudFormation can automate the deployment of this cluster and the overlay IP configuration, providing a reliable, SAP-supported high-availability solution.

Answer

AWS CloudFormation with a custom Lambda function

Answer

AWS Systems Manager Automation with an EC2 runbook

Answer

AWS Elastic Load Balancing with a Network Load Balancer

Question 5

A company is deploying a new SAP S/4HANA system on AWS. The SAP HANA database will run on a single Amazon EC2 instance with multiple EBS volumes. The company wants to ensure that the EBS volumes provide consistent, low-latency performance for the HANA in-memory database. Which EBS volume type should be used for the HANA data and log volumes?

Accepted Answer

io2 Block Express volumes with provisioned IOPS. io2 Block Express volumes deliver the high IOPS, high throughput, and sub-millisecond latency required for SAP HANA data and log volumes on AWS. They are specifically recommended by AWS for production HANA deployments. The other volume types either lack the necessary performance (gp3, st1, sc1) or are not designed for the random I/O patterns of an in-memory database. For SAP HANA, storage performance is critical to overall system responsiveness.

Answer

gp3 volumes with 16,000 IOPS and 1,000 MiB/s throughput

Answer

st1 volumes with 500 MiB/s throughput

Answer

sc1 volumes with 250 MiB/s throughput

Question 6

A company is migrating its SAP ERP system to AWS. The SAP ERP system uses an Oracle database and runs on AIX on-premises. The company wants to minimize the migration effort and ensure that the SAP system is supported on AWS. Which migration approach should be used?

Accepted Answer

Replatform the SAP ERP system to run on Linux on Amazon EC2 with Oracle Database on EC2.. Migrating SAP ERP with Oracle to AWS requires a supported operating system and database configuration. Linux on EC2 with Oracle on EC2 is SAP-certified. AIX is not available on EC2, and RDS for Oracle is not supported for SAP. Refactoring to HANA is a larger effort.

Answer

Replatform the SAP ERP system to run on Linux on Amazon EC2 with Oracle Database on Amazon RDS for Oracle.

Answer

Lift and shift the AIX servers to Amazon EC2 instances using AWS Server Migration Service (SMS).

Answer

Refactor the SAP ERP system to use SAP HANA on Amazon EC2.

Question 7

A company runs SAP HANA on AWS using a scale-out deployment across three EC2 instances. The SAP HANA database uses a shared file system for the /hana/shared directory. The company needs to ensure that the shared file system provides high availability and can be accessed by all nodes simultaneously. Which AWS storage service should be used for the /hana/shared directory?

Accepted Answer

Amazon Elastic File System (Amazon EFS) with General Purpose performance mode. For SAP HANA scale-out deployments, the /hana/shared directory must be on a shared file system accessible by all nodes. Amazon EFS provides a fully managed, highly available, and scalable NFS file system that can be mounted on multiple EC2 instances simultaneously. It is the AWS-recommended storage service for SAP HANA shared files, offering the necessary concurrency and durability. Other options like EBS, FSx for Lustre, or S3 are either not shared, not optimized, or not POSIX-compliant for this use case.

Answer

Amazon Simple Storage Service (Amazon S3) bucket mounted using s3fs

Answer

Amazon Elastic Block Store (Amazon EBS) io2 volumes attached to each instance

Answer

Amazon FSx for Lustre file system

Question 8

A company runs SAP Business Suite on AWS with an Oracle database on an EC2 instance. The database is experiencing high I/O latency due to the EBS volume configuration. The database uses a single gp2 volume of 1 TB. Which action should be taken to improve I/O performance while minimizing cost?

Accepted Answer

Migrate the database to an io1 volume with provisioned IOPS.. Migrating to an io1 volume with provisioned IOPS is the most effective way to improve I/O performance for an Oracle database on AWS. io1 volumes allow you to specify the exact IOPS needed, ensuring consistent performance without over-provisioning storage. This is cost-effective compared to increasing gp2 volume size, which may require more storage than needed. Other options like EBS optimization or changing to st1 do not address the root cause of insufficient IOPS.

Answer

Increase the size of the gp2 volume to 2 TB to get higher baseline IOPS.

Answer

Enable EBS optimization on the EC2 instance.

Answer

Change the volume type to st1 for higher throughput.

Question 9

A company is migrating its SAP ERP Central Component (ECC) system to AWS. The system uses an Oracle database running on an EC2 instance with EBS volumes. The company requires a storage solution that provides consistent sub-millisecond latency and high IOPS for the Oracle database, and must support up to 64,000 IOPS per volume. Which EBS volume type should be used?

Accepted Answer

io2 Block Express. io2 Block Express is the only EBS volume type that provides sub-millisecond latency and supports up to 64,000 IOPS per volume, meeting the performance requirements for an Oracle database supporting SAP ECC. It is specifically designed for high-performance, mission-critical databases.

Answer

st1

Answer

gp3

Answer

io1

Question 10

A company is deploying SAP S/4HANA on AWS using a multi-AZ architecture for high availability. The SAP HANA database is configured with synchronous system replication between two availability zones. The SAP application servers are behind an Application Load Balancer (ALB). The company wants to ensure that the application servers can automatically connect to the new primary HANA database in case of a failover. Which mechanism should the SAP administrator implement to achieve this?

Accepted Answer

Implement a Network Load Balancer (NLB) in front of the HANA instances with a TCP listener on the SQL port, and configure the SAP application servers to connect to the NLB's DNS name.. A Network Load Balancer (NLB) with a TCP listener on the SAP HANA SQL port can automatically route connections to the active primary HANA instance. Health checks detect failover and redirect new connections to the new primary. The application servers use the NLB's DNS name, which remains constant, ensuring seamless failover without manual intervention. This is a best practice for SAP HANA high availability on AWS.

Answer

Configure the SAP application servers to use the ALB's DNS name as the HANA database host in the SAP profile.

Answer

Use AWS Global Accelerator to provide a static anycast IP address for the HANA database, and configure the application servers to use that IP address.

Answer

Use an Amazon Route 53 private hosted zone with a CNAME record that points to the current primary HANA instance, and update the record automatically during failover.

Question 11

A company is designing a disaster recovery (DR) strategy for its SAP HANA database on AWS. The primary site runs in the us-east-1 Region. The company requires a recovery point objective (RPO) of 15 minutes and a recovery time objective (RTO) of 2 hours. The company wants to minimize costs while meeting these objectives. Which TWO actions should the SAP administrator take to meet these requirements? (Choose two.)

Accepted Answer

Configure SAP HANA system replication to a secondary site in us-west-2 with asynchronous mode and log shipping every 15 minutes.. To meet the RPO of 15 minutes and RTO of 2 hours while minimizing costs, the administrator can use SAP HANA system replication with asynchronous mode and log shipping every 15 minutes, combined with a pilot light DR site. Asynchronous replication with frequent log shipping meets the RPO. A pilot light site with a smaller instance reduces costs. During a disaster, the instance can be scaled up to meet the RTO. Other options either do not provide the required RPO, are too costly, or use unsupported services.

Answer

Configure SAP HANA system replication to a secondary site in us-west-2 in synchronous mode with full operation.

Answer

Use AWS Database Migration Service (DMS) to continuously replicate SAP HANA data to an Amazon RDS for SAP HANA instance in us-west-2.

Answer

Use AWS Backup to take EBS snapshots of the SAP HANA data and log volumes every 15 minutes and replicate them to us-west-2.

Question 12

A company is designing a new SAP S/4HANA production landscape on AWS. The SAP HANA database must run on an EC2 instance with local NVMe storage to meet sub-millisecond latency requirements. The company needs to ensure that the SAP HANA data and log volumes are configured correctly for this instance type. Which storage configuration should be used for the SAP HANA data and log volumes?

Accepted Answer

Use the instance store NVMe volumes for data with RAID 0, and Amazon EBS io2 Block Express volumes for log.. SAP HANA on AWS requires that data volumes can use local NVMe instance store for performance, but log volumes must be durable. Using instance store for data with RAID 0 maximizes throughput, while EBS io2 Block Express for log provides the necessary durability and low latency. This combination satisfies both performance and reliability requirements for a production SAP HANA system.

Answer

Use the instance store NVMe volumes for both data and log, with RAID 0 for data and RAID 1 for log.

Answer

Use Amazon EBS gp3 volumes for both data and log, with the data volume striped across multiple volumes for performance.

Answer

Use the instance store NVMe volumes for data and log, with RAID 0 for both.

Question 13

A company is designing a high-availability architecture for an SAP NetWeaver application on AWS. The system consists of multiple SAP application servers, a central services instance (ASCS/ERS), and an SAP HANA database. The company wants to ensure that the application layer can survive an Availability Zone failure with minimal downtime. Which TWO design measures should be implemented? (Choose two.)

Accepted Answer

Deploy SAP application servers across multiple Availability Zones and use an Application Load Balancer to distribute traffic.. To achieve high availability for the SAP NetWeaver application layer across AZs, application servers should be distributed across multiple AZs behind an Application Load Balancer, and the central services instance must be clustered across AZs using a shared file system like Amazon FSx for Windows File Server. These measures ensure that both the application servers and the central services can survive an AZ failure. The other options either do not provide AZ-level redundancy or are not applicable to the application layer.

Answer

Use Amazon Route 53 with a latency-based routing policy to direct users to the closest application server.

Answer

Place all SAP application servers in a single Availability Zone and use auto scaling to replace failed instances.

Answer

Implement a standby SAP HANA database in a second Availability Zone and configure SAP application servers to connect to it directly.

Question 14

An SAP Basis administrator is designing the storage layout for a new SAP HANA scale-out cluster on AWS. The cluster will consist of four r5.8xlarge EC2 instances. The administrator needs to ensure that the storage configuration meets SAP HANA performance requirements and supports the scale-out architecture. Which storage configuration should be used?

Accepted Answer

Attach Amazon EBS io2 Block Express volumes for data and log to each node, and use a separate EBS volume for the shared file system required by HANA scale-out.. For SAP HANA scale-out, each node requires dedicated high-performance block storage for data and log, and a shared file system for configuration and binaries. Amazon EBS io2 Block Express volumes deliver the necessary IOPS and durability. A separate EBS volume can serve as the shared file system, which is required for the scale-out setup. Other options use unsuitable file systems or ephemeral storage.

Answer

Use Amazon FSx for Lustre for the data volume and Amazon EBS gp3 for the log volume on each node.

Answer

Use instance store volumes for all HANA data and log files on each node, and replicate them across nodes using a custom script.

Answer

Attach a single Amazon EFS file system to all nodes and place the HANA data and log volumes on it.

Question 15

A company is designing an SAP HANA disaster recovery strategy on AWS. They plan to use SAP HANA System Replication to a secondary region. Which TWO configurations are required to enable automatic failover to the secondary region? (Choose two.)

Accepted Answer

Implement a DNS-based failover mechanism to redirect SAP application servers to the secondary region.. To enable automatic failover of SAP HANA System Replication to a secondary region, you need a cluster resource agent in the secondary region to monitor and manage the replication, and a DNS-based failover mechanism to redirect clients. The cluster agent automates the promotion of the secondary instance, while DNS failover ensures that SAP application servers connect to the new primary. Together, these provide a robust multi-region disaster recovery solution.

Answer

Configure an overlay IP address that can be moved between regions.

Answer

Use AWS Global Accelerator to provide a static anycast IP address for SAP HANA connections.

Answer

Enable AWS Backup for SAP HANA to replicate backups to the secondary region.