PAS-C01 Technology Practice Test 5 — 15 Questions

Question 1

An SAP Basis team is implementing SAP HANA system replication across two AWS Availability Zones. The HANA primary instance uses Premium SSD v2 (P30) managed disks. The secondary instance must be kept in sync with minimal data loss. Which networking configuration is required to ensure low-latency, high-throughput replication traffic between the instances?

Accepted Answer

Enable Enhanced Networking (ENA) and place the instances in a placement group with cluster placement.. Option A is correct because placement groups with cluster placement provide low-latency networking within a single AZ, but for cross-AZ replication, enabling ENA and using enhanced networking is essential. Option B (ClassicLink) is obsolete. Option C (VPN) adds overhead. Option D (VPC Peering) is for VPC-to-VPC, not within the same VPC.

Answer

Use ClassicLink to connect the instances.

Answer

Set up a VPN connection between the instances.

Answer

Configure VPC peering between the two subnets.

Question 2

A company runs SAP ERP on AWS with a Sybase ASE database. The database is on an EC2 instance with a single 500 GB gp2 EBS volume. The volume shows 100% credit balance consumption frequently, causing I/O throttling. What should the company do to resolve the throttling?

Accepted Answer

Migrate the volume to gp3 with appropriate IOPS and throughput settings.. Option B is correct because gp3 volumes provide baseline performance without burst credits, eliminating the throttling issue. Option A (Increase gp2 volume size) would increase credit balance but not eliminate the credit model. Option C (Enable EBS optimization) is already default for modern instances. Option D (Migrate to RDS) is not supported for Sybase ASE.

Answer

Increase the gp2 volume size to 1,000 GB to gain more I/O credits.

Answer

Enable EBS optimization on the EC2 instance.

Answer

Move the database to Amazon RDS for Sybase ASE.

Question 3

An SAP administrator needs to ensure that Amazon EBS snapshots of SAP HANA data volumes are crash-consistent. The HANA database is on a single EC2 instance with multiple EBS volumes. What is the correct approach?

Accepted Answer

Use AWS Backup with application-consistent snapshots using pre- and post-scripts.. Option D is correct because the AWS Backup service can create application-consistent snapshots using pre- and post-scripts to quiesce the filesystem and database. Option A (Take snapshots individually) may result in inconsistent data if writes occur between snapshots. Option B (Stop the instance) causes downtime. Option C (Use RAID 0) does not guarantee consistency across volumes.

Answer

Configure the volumes as a RAID 0 array and take a snapshot of the array.

Answer

Take snapshots of each volume individually while the instance is running.

Answer

Stop the EC2 instance, take snapshots of all volumes, then start the instance.

Question 4

A company is designing a network architecture for SAP S/4HANA on AWS. The architecture must support high availability by distributing application servers across two Availability Zones. Which AWS service can provide automatic failover for the SAP central services (ASCS) instance?

Accepted Answer

Amazon Route 53 with DNS failover routing. Option B is correct because Amazon Route 53 can route traffic to a health-checked endpoint and failover to a secondary ASCS in another AZ. Option A (ELB) operates at layer 4/7 but does not handle SAP-specific ASCS failover. Option C (CloudFront) is a CDN. Option D (Direct Connect) is a dedicated network connection.

Answer

AWS Direct Connect

Answer

Application Load Balancer (ALB)

Answer

Amazon CloudFront

Question 5

An SAP system running on AWS experiences a significant performance degradation after a patching activity. The SAP application (PAS) and database (HANA) run on separate EC2 instances. The network throughput between the two instances has dropped. What is the MOST likely cause?

Accepted Answer

The instances were moved out of a cluster placement group, reducing network throughput.. Option C is correct because if the instances were in the same placement group before patching and after patching they are not, or if the patching changed instance types that affect network performance, the throughput could drop. Option A (Security group rules) would block traffic, not degrade performance. Option B (Subnet routing) would cause connectivity loss, not just degradation. Option D (IOPS limits) affect disk, not network.

Answer

The EBS-optimization feature was disabled on the database instance.

Answer

The security group rules were modified during patching, restricting traffic.

Answer

The route tables were updated, causing traffic to traverse a NAT gateway.

Question 6

A company is migrating its SAP ERP system from on-premises to AWS. The migration involves a heterogeneous database migration from Oracle to SAP HANA. Which AWS service should be used to perform the database migration with minimal downtime?

Accepted Answer

AWS Database Migration Service (AWS DMS) with a heterogeneous migration using the SAP HANA target endpoint. Option D is correct because AWS DMS supports heterogeneous migrations from Oracle to SAP HANA using the SAP HANA target endpoint. Option A (SCT) is used for schema conversion, not data migration. Option B (Server Migration Service) is for server migrations, not databases. Option C (Database Migration Service) is the correct service but Option D specifies it correctly.

Answer

AWS Schema Conversion Tool (AWS SCT)

Answer

AWS Server Migration Service (SMS)

Answer

AWS Database Migration Service (AWS DMS) with a homogeneous migration

Question 7

A company is deploying SAP S/4HANA on AWS and needs to choose a storage solution for the HANA data volume that provides high IOPS and low latency. Which TWO storage options are suitable? (Choose TWO.)

Accepted Answer

Amazon EC2 instance store (NVMe SSD). Options B and C are correct. Option B (EBS io2 Block Express) delivers high IOPS and low latency for HANA. Option C (Instance store NVMe SSD) provides very low latency but is ephemeral. Option A (EBS gp2) is burstable and not suitable for production HANA. Option D (EFS) is file storage with higher latency. Option E (S3) is object storage, not block-level.

Answer

Amazon EBS gp2 volumes

Answer

Amazon Elastic File System (EFS)

Answer

Amazon S3

Question 8

An SAP administrator is configuring high availability for SAP HANA using HANA system replication (HSR) across multiple Availability Zones. The administrator must ensure that the replication traffic is encrypted and uses the most efficient network path. Which TWO configurations meet these requirements? (Choose TWO.)

Accepted Answer

Enable SAP HANA system replication with TLS/SSL encryption.. Options A and C are correct. Option A (VPC peering) allows direct connectivity between AZs within the same region. Option C (TLS/SSL encryption) ensures encryption of replication traffic. Option B (VPN) adds overhead and is not needed. Option D (Direct Connect) is for on-premises connectivity. Option E (S3) is not involved.

Answer

Store replication data in Amazon S3 and have the secondary instance pull it.

Answer

Use AWS Direct Connect to connect the Availability Zones.

Answer

Configure a VPN connection between the Availability Zones.

Question 9

A company is running an SAP NetWeaver system on AWS. The system includes a primary application server (PAS) and a dialog instance. The administrator wants to monitor the SAP system health using Amazon CloudWatch. Which THREE metrics should be monitored to proactively detect performance issues? (Choose THREE.)

Accepted Answer

EBS Volume Queue Length. Options A, C, and E are correct. Option A (EC2 CPU utilization) helps detect compute bottlenecks. Option C (EBS volume queue length) indicates I/O pressure. Option E (SAP work process usage) shows application-level saturation. Option B (NetworkIn) is less critical for health. Option D (SwapUsage) is important but not a standard CloudWatch metric; it requires custom agent.

Answer

EC2 SwapUsage (as custom metric)

Answer

EC2 NetworkIn

Question 10

An SAP application running on AWS is experiencing high latency for database write operations. The system uses SAP ASE on Amazon EC2 with gp2 EBS volumes. Which change is most likely to improve write performance?

Accepted Answer

Migrate to io1/io2 EBS volumes with provisioned IOPS.. Option B is correct because io1/io2 volumes provide consistent IOPS performance suitable for database workloads. Option A is wrong because gp3 may still not guarantee low latency writes. Option C is wrong because instance store is ephemeral and data is lost on stop/termination. Option D is wrong because S3 is object storage, not block storage for database.

Answer

Move database write logs to Amazon S3 for better throughput.

Answer

Migrate to gp3 EBS volumes with higher baseline performance.

Answer

Use instance store volumes for database data files.

Question 11

A customer runs SAP HANA on an AWS Multi-AZ deployment with a primary and secondary instance. They want to ensure automatic failover in case of instance failure. What is the recommended approach?

Accepted Answer

Implement SAP HANA System Replication in a multi-AZ configuration with automatic failover using AWS services.. Option D is correct because AWS offers a native HANA multi-AZ solution using HANA System Replication with automatic failover. Option A is wrong because auto-scaling doesn't handle database failover. Option B is wrong because RDS custom does not support HANA. Option C is wrong because manual DNS change is not automatic.

Answer

Set up a Route 53 health check to redirect traffic to the secondary instance manually.

Answer

Use Amazon RDS for SAP HANA with Multi-AZ enabled.

Answer

Configure an Auto Scaling group with a lifecycle hook to launch a new HANA instance.

Question 12

An SAP system on AWS sends large amounts of batch data via RFC calls between two EC2 instances in the same VPC. The application team reports high network latency. Which configuration change would most effectively reduce latency?

Accepted Answer

Place both EC2 instances in the same cluster placement group.. Option A is correct because placement groups provide low latency, high throughput networking. Option B is wrong because ENA is already recommended for enhanced networking. Option C is wrong because Elastic Fabric Adapter is for HPC, not general SAP. Option D is wrong because public IPs do not reduce latency within VPC.

Answer

Assign Elastic IP addresses to both instances.

Answer

Enable Elastic Network Adapter (ENA) on both instances.

Answer

Use Elastic Fabric Adapter (EFA) for network communication.

Question 13

A company running SAP on AWS needs to back up their SAP HANA database daily with point-in-time recovery. Which service should they use to achieve this with minimal operational overhead?

Accepted Answer

AWS Backup with the SAP HANA backup plan.. Option C is correct because AWS Backup supports SAP HANA with automated backups and point-in-time recovery. Option A is wrong because snapshots alone do not provide point-in-time recovery. Option B is wrong because S3 is object storage, not a backup service. Option D is wrong because RDS does not support SAP HANA.

Answer

Amazon RDS automated backups.

Answer

Amazon EBS snapshots via a script.

Answer

Amazon S3 with lifecycle policies.

Question 14

An SAP system is running on EC2 and uses a Classic Load Balancer to distribute traffic to web dispatchers. The operations team notices that the load balancer is not distributing traffic evenly. What is the most likely cause?

Accepted Answer

The load balancer uses a flow hash algorithm that may not evenly distribute requests with many long-lived connections.. Option D is correct because Classic Load Balancer uses a flow hash algorithm that may cause uneven distribution with long-lived connections. Option A is wrong because health checks don't affect distribution balance. Option B is wrong because cross-zone load balancing helps but does not guarantee even distribution. Option C is wrong because connection draining does not affect distribution.

Answer

Cross-zone load balancing is disabled.

Answer

Connection draining is not enabled.

Answer

The health check interval is set too high.

Question 15

A company is deploying SAP S/4HANA on AWS and needs to ensure that the system can handle a sudden increase in user load during month-end closing. Which architectural change would best address this requirement?

Accepted Answer

Configure auto-scaling for the SAP application tier based on CPU utilization.. Option A is correct because application auto-scaling allows adding instances to handle increased load. Option B is wrong because vertical scaling has limits and requires downtime. Option C is wrong because increasing provisioned IOPS helps with storage, not compute. Option D is wrong because Multi-AZ provides high availability, not scalability.

Answer

Deploy the application across multiple Availability Zones.

Answer

Increase the provisioned IOPS on the database EBS volumes.

Answer

Use a larger EC2 instance type for the application server.