PAS-C01 Practice Test 33 — 15 Questions

Question 1

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 2

A company wants to set up an SAP HANA system replication across two AWS Regions for disaster recovery. Which AWS service should they use to achieve the lowest possible recovery point objective (RPO)?

Accepted Answer

Amazon S3 Transfer Acceleration. Option B is correct because Amazon S3 Transfer Acceleration uses optimized network paths for fast data transfer, reducing RPO for HANA replication. Option A is wrong because AWS Direct Connect is a private connection but does not inherently accelerate data transfer. Option C is wrong because VPN can be slower and less reliable over long distances. Option D is wrong because AWS Global Accelerator improves application performance but not specifically for data replication.

Answer

AWS Site-to-Site VPN

Answer

AWS Direct Connect

Answer

AWS Global Accelerator

Question 3

Which TWO AWS services can be used to create a private, low-latency network connection between an on-premises data center and an SAP environment on AWS? (Choose two.)

Accepted Answer

AWS Site-to-Site VPN. Options A and C are correct. AWS Direct Connect provides a dedicated private connection, and AWS VPN provides encrypted tunnels over the internet. Option B is wrong because VPC peering is for VPC-to-VPC. Option D is wrong because AWS Transit Gateway is a hub for multiple VPCs, not a direct connection. Option E is wrong because PrivateLink is for service access within VPC.

Answer

VPC peering

Answer

AWS Transit Gateway

Answer

AWS PrivateLink

Question 4

An SAP system uses a custom RFC destination to an external SOAP web service. After a recent network change, the RFC call fails with a timeout error. The SAP administrator has verified that the web service is reachable from the SAP application server using ping. What is the MOST likely cause of the timeout?

Accepted Answer

A firewall between the application server and the web service is blocking the required port.. Option C is correct because the firewall might block the specific port used by the SOAP service (e.g., 443 or 8080) even if ICMP (ping) is allowed. Option A (DNS) is unlikely if ping works. Option B (SAP router) is not involved. Option D (SSL certificate) would cause a different error (e.g., certificate validation failure).

Answer

The DNS resolution is incorrect for the web service hostname.

Answer

The SAP router configuration is blocking the connection.

Answer

The SSL certificate of the web service has expired.

Question 5

A company runs SAP on AWS and uses a Multi-AZ RDS for SAP HANA as the database. The database instance is m5.8xlarge with 1000 GB of gp2 storage. The application team reports that write latency spikes during peak hours. The average write throughput is 200 MB/s. Which change would most effectively reduce write latency?

Accepted Answer

Change the volume type to Provisioned IOPS (io1 or io2). gp2 volumes have a baseline of 3 IOPS per GB. 1000 GB provides 3000 IOPS baseline. Burst balance depletes if sustained IOPS exceed baseline. The maximum throughput for gp2 is 250 MB/s, but 200 MB/s is high. Provisioned IOPS (io1/io2) provides consistent performance and higher throughput. Option B is correct. Increasing volume size would increase baseline but may not be cost-effective. Changing to st1 is throughput-optimized but not for HANA. Enabling Auto Scaling only increases size when burst credits depleted but still uses gp2.

Answer

Increase the volume size to 2000 GB

Answer

Enable EBS Auto Scaling on the volume

Answer

Change the volume type to Throughput Optimized (st1)

Question 6

An administrator receives this error when trying to register an SAP system in AWS Systems Manager. What is the likely cause?

Accepted Answer

The SAP Host Agent is not installed on the EC2 instance.. Option A is correct because the SAP Host Agent must be installed on the EC2 instance for Systems Manager to manage the SAP system. Option B is incorrect because SSM Agent may be installed but the error specifically says SAPHostAgent. Option C is incorrect because the error is not about the SAP application itself. Option D is incorrect because IAM role issues would give a different error (e.g., access denied).

Answer

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

Answer

The AWS Systems Manager Agent (SSM Agent) is not running.

Answer

The SAP system is not installed correctly.

Question 7

Which TWO of the following are benefits of using SAP HANA System Replication (HSR) on AWS? (Choose 2.)

Accepted Answer

Supports replication across AWS Regions for disaster recovery. Option A and B are correct. HSR provides high availability and can be used for disaster recovery with replication to another Region. Option C is incorrect because HSR does not provide load balancing; it is for failover. Option D is incorrect because HSR does not automatically scale storage. Option E is incorrect because HSR does not improve query performance.

Answer

Improves query performance by distributing workloads

Answer

Automatically scales storage based on database growth

Answer

Automatically load balances read queries between primary and secondary

Question 8

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 9

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.

Question 10

During an SAP system migration to AWS, the team needs to ensure that the SAP application can automatically restart if the EC2 instance fails. Which combination of AWS services should they use?

Accepted Answer

Amazon EC2 Auto Scaling and Amazon CloudWatch. Option A is correct because Auto Scaling with a fixed instance count can automatically replace failed instances, and CloudWatch alarms can trigger recovery. Option B is wrong because Lambda does not natively restart instances. Option C is wrong because Route 53 health checks do not restart instances. Option D is wrong because Elastic Beanstalk is for web applications, not SAP.

Answer

AWS Elastic Beanstalk and Amazon RDS

Answer

AWS Lambda and Amazon SQS

Answer

Amazon Route 53 and Elastic Load Balancing

Question 11

Which THREE factors should be considered when choosing an EC2 instance type for an SAP HANA production system? (Choose three.)

Accepted Answer

The instance type must be certified by SAP for HANA.. Options A, C, and D are correct. SAP HANA requires certified instance types (A), sufficient memory (C), and high network bandwidth (D). Option B is wrong because HANA uses dedicated storage, not instance store. Option E is wrong because GPU is not required for standard HANA.

Answer

The instance type should include instance store volumes for data persistence.

Answer

The instance must include GPU acceleration for HANA operations.

Question 12

A company runs SAP HANA on AWS using a scale-up configuration. The system is experiencing high CPU utilization on the HANA server during peak load. The SAP administrator wants to add more CPU resources without disruption. Which action should be taken?

Accepted Answer

Add an additional HANA node to create a scale-out configuration and distribute the load.. Option B is correct because resizing an EC2 instance (changing the instance type) requires stopping the instance, which causes disruption. HANA scale-out (adding nodes) can be done online with HANA system replication, but requires additional instances. Option A (change instance type) requires stop/start. Option C (add EBS) does not add CPU. Option D (multi-AZ) is for HA.

Answer

Enable Multi-AZ deployment for high availability.

Answer

Change the EC2 instance type to a larger size using the AWS Management Console.

Answer

Increase the provisioned IOPS on the EBS volumes.

Question 13

A company is implementing SAP HANA on AWS and needs to ensure that the storage configuration meets the required IOPS and throughput. The SAP HANA system uses a scale-out architecture with multiple worker nodes. Which type of Amazon EBS volume is recommended for the /hana/data and /hana/log volumes in a production environment?

Accepted Answer

Provisioned IOPS SSD (io1 or io2). For SAP HANA, AWS recommends Provisioned IOPS (io1 or io2) volumes for /hana/data and /hana/log to ensure consistent high performance. Option B is correct. gp2/gp3 are burstable and may not sustain required performance. st1/sc1 are throughput-optimized and not suitable for HANA data or log.

Answer

Throughput Optimized HDD (st1)

Answer

General Purpose SSD (gp2 or gp3)

Answer

Cold HDD (sc1)

Question 14

An SAP administrator runs the AWS CLI command shown in the exhibit to check the status of a production HANA instance. The output shows the instance is running in us-east-1a. However, the SAP application team reports that the HANA database is not responding. What should the administrator check next to diagnose the issue?

Accepted Answer

The HANA database service is not running on the instance. The CLI output shows the instance is running, but does not indicate whether the HANA database service is actually running or healthy. The administrator should check the HANA database status by connecting to the instance or using SAP HANA Studio. Option D is correct. The instance is running (A is wrong). The EBS volumes could be detached but that is less likely. The security group rules are not checked by this command.

Answer

The EBS volumes are detached from the instance

Answer

The instance state is 'running' so no issue with the instance

Answer

The security group does not allow inbound traffic to the database port

Question 15

A company is running an SAP HANA database on an EC2 instance with an EBS gp3 volume. The workload is write-intensive and latency-sensitive. Which configuration change would provide the most consistent I/O performance?

Accepted Answer

Use an EBS io2 Block Express volume with provisioned IOPS. Option B is correct because EBS io2 Block Express volumes provide consistent low-latency performance for I/O-intensive workloads like SAP HANA. Option A is incorrect because throughput-optimized HDD (st1) is not suitable for database workloads. Option C is incorrect because increasing gp3 size alone does not guarantee consistent latency. Option D is incorrect because provisioned IOPS on gp3 can help but io2 Block Express is designed for consistent low latency.

Answer

Switch to an EBS st1 (throughput-optimized HDD) volume

Answer

Enable EBS Multi-Attach for the gp3 volume

Answer

Increase the size of the existing gp3 volume to increase baseline throughput