PAS-C01 Quick Quiz — 10 Questions

Question 1

A company is using AWS Systems Manager Patch Manager to patch a fleet of EC2 instances. The instances are in a patch group and have the SSM Agent installed. After a patching operation, the operations team notices that some instances did not apply the patches. The instances show a status of 'Failed' in the Patch Manager console. Which TWO steps should the team take to troubleshoot and resolve the issue? (Choose TWO.)

Accepted Answer

Verify that the SSM Agent on the failed instances is running and is able to communicate with the Systems Manager service.. Option C is correct because if the SSM Agent is not running or cannot communicate with the AWS Systems Manager service, Patch Manager cannot execute the patching commands. The agent must be in a healthy state and have network connectivity (e.g., via VPC endpoints or internet gateway) to receive the patch baseline and report status. Option D is correct because the AWS-RunPatchBashelline SSM document execution history in Run Command provides detailed logs and error messages for each instance, allowing the team to identify why the patching failed, such as missing dependencies or timeout issues.

Answer

Assign the patch baseline to the instance IDs directly.

Answer

Ensure that the instances have the appropriate IAM role that allows them to be patched.

Answer

Configure a Maintenance Window for the patching operation.

Question 2

A company is migrating a legacy on-premises application to AWS. The application uses a MySQL database with a complex stored procedure that runs every hour and takes approximately 10 minutes to complete. The company wants to minimize downtime during migration. Which TWO approaches should the company use to migrate the database?

Accepted Answer

Use AWS Database Migration Service (DMS) with ongoing replication from the source MySQL database to an Amazon RDS for MySQL instance.. Option B is correct because AWS DMS with ongoing replication allows continuous synchronization from the source MySQL database to Amazon RDS for MySQL, minimizing downtime during migration. The complex stored procedure that runs hourly and takes 10 minutes is handled seamlessly as DMS captures ongoing changes, enabling a controlled cutover with minimal disruption.

Answer

Use AWS DMS with a full load only, without ongoing replication, and schedule a cutover window.

Answer

Take a full database dump using mysqldump and import it into an Amazon RDS for MySQL instance during a planned maintenance window.

Answer

Create an Amazon RDS for MySQL read replica from the on-premises database.

Question 3

A company manages a multi-account AWS environment using AWS Organizations. The operations team needs to ensure that all accounts have CloudTrail enabled and that logs are delivered to a centralized S3 bucket. What is the MOST efficient way to enforce this configuration?

Accepted Answer

Deploy an AWS CloudFormation StackSet with a template that enables CloudTrail and configures the S3 bucket in every account and region.. Option B is correct because AWS CloudFormation StackSets allow you to deploy a CloudTrail configuration template across multiple accounts and regions in a single, automated operation. This approach ensures consistent enforcement of the policy without manual intervention, leveraging the centralized management capabilities of AWS Organizations.

Answer

Configure CloudTrail in the management account with an S3 bucket policy that grants access to all member accounts.

Answer

Create a custom script using AWS CLI to enable CloudTrail in each account and region.

Answer

Use AWS Service Catalog to publish a CloudTrail product and require each account to launch it.

Question 4

A company is running SAP HANA on an r5.8xlarge instance. They want to scale up to meet increased memory requirements. Which instance family would be the MOST suitable for a scale-up scenario?

Accepted Answer

x1e.32xlarge. The x1e.32xlarge instance is part of the X1e family, which is specifically designed for high-memory workloads like SAP HANA. With 3,904 GiB of memory, it provides the largest memory capacity among AWS instances, making it the most suitable for scaling up SAP HANA to meet increased memory requirements. SAP HANA is an in-memory database, so scaling up requires instances with high memory-to-vCPU ratios, which the X1e family delivers.

Answer

r5.24xlarge

Answer

i3.16xlarge

Answer

c5.18xlarge

Question 5

Which TWO of the following are best practices for securing SAP workloads on AWS?

Accepted Answer

Use IAM roles to grant EC2 instances access to AWS services.. IAM roles allow EC2 instances to securely access AWS services (e.g., S3, DynamoDB) without embedding long-term credentials. By attaching an IAM role to an EC2 instance, the instance can obtain temporary credentials via the instance metadata service, which is a best practice for securing SAP workloads on AWS.

Answer

Disable encryption in transit between application and database tiers.

Answer

Allow SSH access from the internet for administration.

Answer

Store SAP backup files in a public S3 bucket for easy access.

Question 6

Which THREE of the following are valid considerations when designing an SAP HANA backup strategy on AWS?

Accepted Answer

Use EBS snapshots for backing up HANA data volumes.. Option A is correct because EBS snapshots provide a consistent, point-in-time backup of HANA data volumes when the database is in backup mode (e.g., using hdbsql to create a snapshot). This method is supported by SAP and AWS, and it allows for fast recovery by restoring the entire volume without needing to replay transaction logs from a separate backup.

Answer

Back up HANA data directly to Amazon S3 using standard tools.

Answer

Replicate backups to another AWS Region using S3 Cross-Region Replication.

Question 7

A company is running SAP on AWS and needs to design a disaster recovery (DR) solution with a Recovery Point Objective (RPO) of 15 minutes and a Recovery Time Objective (RTO) of 4 hours. The primary region is us-east-1 and the DR region is us-west-2. The SAP application uses an SAP HANA database with a size of 2 TB. Which combination of AWS services should be used to meet the DR requirements most cost-effectively?

Accepted Answer

Configure HANA System Replication (HSR) across regions and use a standby HANA instance in us-west-2 with a smaller instance size.. Option D is correct because HANA System Replication (HSR) is the native SAP HANA replication technology that can achieve an RPO of 15 minutes or less by asynchronously replicating data across regions. By using a smaller standby instance in us-west-2, the solution meets the RTO of 4 hours (since the standby can be scaled up or promoted quickly) while minimizing ongoing DR costs. This approach is purpose-built for SAP HANA and avoids the overhead of third-party tools or backup-based restores.

Answer

Use AWS Database Migration Service (DMS) with continuous replication from the primary HANA database to a target in us-west-2.

Answer

Use AWS Backup with continuous backups and cross-region copy to achieve RPO of 15 minutes.

Answer

Use AWS Backup to take hourly backups of the HANA database and restore in us-west-2 during a disaster.

Question 8

A company runs a containerized application on Amazon ECS with Fargate launch type. The application needs to access an Amazon RDS database that is in a private subnet. The ECS tasks are also in private subnets. The security group for the RDS instance allows inbound traffic on port 3306 from the security group attached to the ECS tasks. However, the application cannot connect to the database. Which solution should the company implement to resolve this issue?

Accepted Answer

Attach the same security group to the ECS tasks and the RDS instance, and ensure the security group has an inbound rule allowing traffic from itself on port 3306. Option B is correct because when using security group IDs in inbound rules, the traffic is evaluated based on the source security group's network interfaces, not the IP addresses. However, for this to work, the security group must be attached to the ECS tasks' elastic network interfaces (ENIs). By attaching the same security group to both the ECS tasks and the RDS instance, and adding a self-referencing inbound rule for port 3306, the RDS instance will accept traffic from any resource that has that security group attached, including the ECS tasks. This resolves the connectivity issue because the security group rule correctly identifies the source by the security group ID, not by IP.

Answer

Configure the ECS task definition to assign a public IP address to the tasks and ensure the tasks have a route to the internet via a NAT gateway

Answer

Place both the ECS tasks and the RDS instance in the same public subnet to ensure network connectivity

Answer

Modify the RDS security group inbound rule to allow traffic from the CIDR block of the ECS tasks’ private subnets instead of the security group ID

Question 9

A company is migrating a legacy monolithic application to a microservices architecture on AWS. The application currently uses an Oracle database with complex stored procedures. The company wants to minimize changes to the application code during migration. Which database migration strategy should the company use?

Accepted Answer

Replatform the application by migrating the Oracle database to Amazon RDS for Oracle. Option D is correct because the company wants to minimize changes to the application code during migration. By replatforming the Oracle database to Amazon RDS for Oracle, the application can continue to use the same Oracle database engine, stored procedures, and SQL dialect with minimal or no code changes. This approach avoids the need to rewrite complex stored procedures or adapt to a different database engine, which would be required with other migration strategies.

Answer

Migrate the database to Amazon Aurora with PostgreSQL compatibility using the AWS Database Migration Service (DMS)

Answer

Store the data in Amazon S3 and use Athena for querying

Answer

Refactor the application to use Amazon DynamoDB as the database

Question 10

A company runs a stateful web application on EC2 instances in an Auto Scaling group with a dynamic scaling policy based on CPU utilization. The application maintains session state in memory on each instance. Users report that they are frequently logged out and lose their session data during scaling events. What should the company do to resolve this issue?

Accepted Answer

Modify the application to store session state in an Amazon ElastiCache cluster. Option C is correct because storing session state externally in ElastiCache decouples session data from individual EC2 instances. This ensures that when instances are terminated or added during scaling events, users retain their session state regardless of which instance serves their request. ElastiCache provides a low-latency, in-memory cache that is ideal for session persistence in stateful web applications.

Answer

Change the scaling policy to a simple scaling policy instead of dynamic scaling

Answer

Enable sticky sessions (session affinity) on the Application Load Balancer

Answer

Increase the cooldown period for the Auto Scaling group