PAS-C01 Practice Test 44 — 15 Questions

Question 1

A company is running SAP HANA in a multi-node scale-out configuration on AWS. The cluster uses AWS Placement Groups with the 'cluster' placement strategy. The system is experiencing network latency between nodes. Which change should the company make to reduce latency?

Accepted Answer

Enable Enhanced Networking (ENA) on all instances in the cluster.. Option C is correct because Enhanced Networking with ENA provides lower latency and higher packet per second performance. Option A is wrong because 'spread' placement group reduces co-location, increasing latency. Option B is wrong because increasing instance size does not directly reduce latency; network bandwidth may increase but not necessarily latency. Option D is wrong because EBS-optimized instances improve storage throughput, not network latency.

Answer

Change the placement group to 'spread' to reduce interference.

Answer

Use larger instance sizes to increase network bandwidth.

Answer

Use EBS-optimized instances to improve storage performance.

Question 2

A company is migrating an SAP ERP system to AWS and needs to connect on-premises users to the SAP application securely. The SAP application is deployed in a VPC private subnet. Which service should be used to provide secure access for remote users?

Accepted Answer

AWS Client VPN. AWS Client VPN provides secure access for individual remote users to resources in a VPC. AWS Direct Connect is for dedicated network connections, Site-to-Site VPN is for site-to-site connectivity, and Transit Gateway is for connecting multiple VPCs and on-premises networks.

Answer

AWS Site-to-Site VPN

Answer

AWS Transit Gateway

Answer

AWS Direct Connect

Question 3

A company is deploying an SAP BusinessObjects (BOBJ) platform on AWS. The platform consists of multiple web application servers, a CMS database, and an audit database. The company wants to ensure high availability for the CMS database using native SAP tools. Which AWS service should be used to host the CMS database to facilitate the use of SAP's native replication?

Accepted Answer

Amazon RDS. Option A is correct because SAP BusinessObjects CMS uses a relational database (e.g., SQL Server, Oracle, or SAP ASE) that can be hosted on Amazon RDS, which supports native replication features like Multi-AZ. Option B is wrong because DynamoDB is NoSQL and not supported by BOBJ. Option C is wrong because S3 is object storage. Option D is wrong because ElastiCache is in-memory cache.

Answer

Amazon DynamoDB

Answer

Amazon ElastiCache

Answer

Amazon S3

Question 4

A company runs a critical SAP application on AWS. The SAP team needs to reduce network latency between application servers and the database. Which AWS service should be used to achieve this?

Accepted Answer

Placement Groups (cluster). Option B is correct because placement groups, specifically cluster placement groups, provide low-latency network performance by placing instances in a single Availability Zone with high-bandwidth, low-latency connections. Option A is incorrect because VPC Peering connects networks but doesn't guarantee low latency between instances. Option C is incorrect because AWS Global Accelerator improves global traffic routing but not within a region. Option D is incorrect because Route 53 is a DNS service.

Answer

Amazon Route 53

Answer

AWS Global Accelerator

Answer

VPC Peering

Question 5

Refer to the exhibit. An SAP administrator is creating an IAM policy for launching EC2 instances. Which instance type will the policy allow?

Accepted Answer

r5.4xlarge and r5.8xlarge. Option C is correct because the policy allows r5.4xlarge and r5.8xlarge instances. Option A is incorrect because r5.2xlarge is not listed. Option B is incorrect because r5.xlarge is not listed. Option D is incorrect because r5.16xlarge is not listed.

Answer

r5.16xlarge

Answer

r5.xlarge

Answer

r5.2xlarge

Question 6

An SAP system uses Amazon EFS for shared file storage. The SAP application writes many small files concurrently, causing high metadata operations. Which EFS performance mode should be selected to optimize for this workload?

Accepted Answer

Max I/O. Option A is correct because Max I/O mode is optimized for high throughput and metadata operations. Option B is incorrect because General Purpose mode is for latency-sensitive workloads. Option C is incorrect because there is no 'Throughput Optimized' mode. Option D is incorrect because Provisioned Throughput is a throughput setting, not a performance mode.

Answer

General Purpose

Answer

Throughput Optimized

Answer

Provisioned Throughput

Question 7

A company is running a critical SAP HANA database on a single EC2 instance with a large gp2 EBS volume. They need to ensure high availability with a Recovery Time Objective (RTO) of less than 15 minutes and a Recovery Point Objective (RPO) of less than 5 minutes. Which solution meets these requirements?

Accepted Answer

Configure SAP HANA System Replication in scale-up mode with a standby HANA instance in a different Availability Zone.. Option B is correct because SAP HANA System Replication in scale-up mode with a standby instance provides fast failover and near-synchronous replication, meeting the RTO and RPO requirements. Option A is wrong because manual snapshots have high RTO. Option C is wrong because Multi-AZ RDS is not supported for SAP HANA. Option D is wrong because ASR has longer RTO.

Answer

Deploy the SAP HANA database on Amazon RDS for SAP HANA in a Multi-AZ configuration.

Answer

Use AWS Backup to take daily snapshots of the EBS volume and restore to a new instance in another Availability Zone.

Answer

Use AWS Application Recovery Controller to continuously replicate data to a standby EC2 instance in another region.

Question 8

A company is running SAP HANA on EC2 instances with EBS volumes. They need to ensure data durability and backup. Which THREE actions should be taken?

Accepted Answer

Enable SAP HANA System Replication to a secondary instance.. Option A (snapshots), Option D (backup to S3), Option E (replication) are best practices. Option B is wrong because backups are needed. Option C is wrong because terminating on instance store data loss.

Answer

Disable automated backups to reduce costs.

Answer

Use instance store volumes for HANA data.

Question 9

A company needs to automate the start and stop of SAP applications in non-production environments to reduce costs. The SAP systems run on multiple EC2 instances. Which AWS service can be used to schedule start and stop actions?

Accepted Answer

AWS Instance Scheduler. Option B is correct because AWS Instance Scheduler is a solution specifically designed to start and stop EC2 instances on a schedule. Option A is wrong because Lambda can be used but requires custom code; Instance Scheduler is simpler. Option C is wrong because CloudWatch Events can trigger Lambda, but not directly stop instances. Option D is wrong because OpsWorks is for configuration management, not scheduling.

Answer

AWS OpsWorks

Answer

AWS Lambda with custom code

Answer

Amazon CloudWatch Events

Question 10

An SAP system administrator needs to automate the creation of an SAP HANA database backup and copy it to another AWS Region for disaster recovery. The backup is stored in an Amazon S3 bucket. Which AWS service should be used to replicate the backup to another Region?

Accepted Answer

S3 Cross-Region Replication (CRR). S3 Cross-Region Replication (CRR) automatically replicates objects from a source bucket to a destination bucket in a different region. S3 Batch Operations is for bulk actions, S3 Transfer Acceleration speeds up uploads, and S3 Lifecycle Policies manage storage tiers, not replication.

Answer

S3 Lifecycle Policies

Answer

S3 Batch Operations

Answer

S3 Transfer Acceleration

Question 11

An SAP system administrator is troubleshooting a performance issue on an SAP application server running on an EC2 instance. The /usr/sap directory is on an EBS volume. The administrator notices high I/O wait times. Which action should be taken to improve I/O performance?

Accepted Answer

Change the EBS volume type to io2 Block Express with provisioned IOPS. Changing the EBS volume type to io2 with provisioned IOPS can improve I/O performance for high-throughput workloads. Increasing instance size may not address I/O specifically. Moving to instance store provides high IOPS but data is ephemeral. Converting to EFS may introduce network latency.

Answer

Migrate the /usr/sap directory to Amazon EFS

Answer

Move the /usr/sap directory to an instance store volume

Answer

Increase the instance size to a larger instance type

Question 12

An SAP system administrator is troubleshooting an issue where the SAP HANA database is using more memory than expected on an Amazon EC2 instance. The instance type is an x1e.32xlarge with 3,904 GB of RAM. The HANA global.ini file includes the parameter 'memorymanager = global'. The administrator suspects that the HANA memory limit is not set correctly. What should the administrator check to confirm the memory limit?

Accepted Answer

Run the SQL statement 'SELECT * FROM M_SERVICE_MEMORY' and compare with 'SELECT VALUE FROM M_INIFILE WHERE KEY='global_allocation_limit'.'. Option C is correct because the effective memory limit is determined by the minimum of the global allocation limit and the physical memory. Option A is wrong because only checking the configuration file does not show effective limit. Option B is wrong because CloudWatch metrics show usage, not limit. Option D is wrong because 'free -g' shows OS free memory, not HANA limit.

Answer

Review Amazon CloudWatch metrics for HANA memory usage.

Answer

Check the output of 'free -g' command on the EC2 instance.

Answer

Check the 'global_allocation_limit' parameter in the global.ini file.

Question 13

An SAP administrator notices that the SAP HANA database on an r5.8xlarge instance is experiencing high swap usage. The instance has 256 GB of RAM. The SAP HANA memory usage is 200 GB. What is the most likely cause?

Accepted Answer

The swap space is too small for the HANA workload. Option C is correct because SAP HANA requires a swap space equal to at least the amount of RAM for HANA to function correctly during memory overcommit scenarios. Option A is incorrect because 200 GB is within the 256 GB RAM limit, so memory is not exhausted. Option B is incorrect because swap is not disabled by default. Option D is incorrect because HANA typically uses huge pages, not swap, for memory allocation.

Answer

The instance memory is exhausted

Answer

HANA is using huge pages instead of swap

Answer

Swap is disabled on the instance

Question 14

Refer to the exhibit. A CloudFormation stack creation failed with the message 'WaitCondition received failed signal'. What is the most likely cause?

Accepted Answer

The script executed via cfn-signal failed to complete successfully. Option A is correct because a WaitCondition fails when the expected signal from cfn-signal is not received, often due to a script error. Option B is incorrect because the signal failure is about the script, not instance size. Option C is incorrect because security groups would cause a different error. Option D is incorrect because the error message explicitly mentions a signal failure, not a time limit.

Answer

The security group rules are blocking the cfn-signal communication

Answer

The stack creation timed out after 1 hour

Answer

The EC2 instance type is not supported in the region

Question 15

A company is designing a disaster recovery solution for SAP HANA. The primary site is in us-east-1 and the DR site is in us-west-2. The RPO is 5 minutes and the RTO is 30 minutes. Which replication method meets these requirements?

Accepted Answer

SAP HANA System Replication with synchronous mode. Option C is correct because HANA System Replication with synchronous mode can achieve low RPO. Option A is incorrect because RDS Multi-AZ is for single Region. Option B is incorrect because EBS snapshots have higher RPO. Option D is incorrect because DMS continuous replication is for databases but not optimized for HANA.

Answer

Amazon RDS Multi-AZ deployment

Answer

Scheduled EBS snapshots copied to us-west-2

Answer

AWS Database Migration Service with ongoing replication