SAP-C02 Accelerate Workload Migration and Modernization Practice Test 12 — 15 Questions

Question 1

A company is migrating its on-premises Oracle database to Amazon Aurora PostgreSQL using AWS DMS. The database has several large tables with hundreds of millions of rows. The migration must complete within a 2-hour downtime window. During the full load, DMS is running slowly on large tables. What should the company do to improve performance?

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

Accepted Answer

Partition the large tables on the source and target, and use multiple DMS tasks.. Partitioning large tables on both source and target and using multiple DMS tasks in parallel distributes the full load across tasks, dramatically improving throughput for tables with hundreds of millions of rows. This leverages DMS's parallel load capability and reduces the time to complete the full load within the 2-hour window. It is the recommended approach for large table migrations.

Answer

Disable foreign key constraints on the target during migration.

Answer

Use a smaller DMS instance to avoid network bottlenecks.

Answer

Set the LOB mode to 'Limited LOB mode' with a high max LOB size.

Question 2

A company is migrating its on-premises file server to Amazon FSx for Windows File Server. The company has 2 TB of data and a 100 Mbps internet connection. The migration must be completed within 5 days. What should the company do?

Accepted Answer

Use AWS Snowcone to physically ship the data.. Snowcone is designed for small data volumes (up to 8 TB) and can be shipped to AWS within days, meeting the 5-day deadline. Option A is wrong because provisioning a new Direct Connect connection typically takes weeks, which exceeds the 5-day deadline. Option C is wrong because DataSync over the internet with a 100 Mbps connection would take approximately 48 hours or more, and the process may introduce delays or reliability issues; AWS recommends physical devices for smaller datasets under tight timelines. Option D is wrong because Snowball Edge is intended for larger data volumes (up to 80 TB) and is oversized for 2 TB; Snowcone is a more appropriate and cost-effective choice.

Answer

Order a new AWS Direct Connect connection.

Answer

Use AWS DataSync over the internet to transfer data.

Answer

Use AWS Snowball Edge to transfer data.

Question 3

A company is migrating a large legacy Java application from its on-premises data center to AWS. The application runs on 40 Windows servers and uses a shared NFS file system. The migration must be completed within a tight two-week window. The company wants to minimize operational overhead and avoid re-architecting the application. Which migration strategy should a solutions architect recommend?

Accepted Answer

Rehost the application by using AWS Application Migration Service and replicate the NFS data to Amazon FSx for Windows File Server.. Rehosting with AWS Application Migration Service allows rapid lift-and-shift of servers to AWS with minimal downtime, while Amazon FSx for Windows File Server provides a fully managed Windows-native file system that supports SMB and NFS protocols. This combination preserves the legacy architecture, meets the two-week timeline, and reduces operational burden.

Answer

Retire the application and rewrite it as a cloud-native serverless application using AWS Lambda and Amazon S3 for file storage.

Answer

Repurchase by migrating the application to a SaaS solution that offers similar functionality, and use AWS Database Migration Service to move the data.

Answer

Replatform the application by containerizing it with Docker and deploying to Amazon ECS on AWS Fargate, then migrate data to Amazon EFS.

Question 4

A media company is migrating a 200 TB on-premises video archive to Amazon S3. The archive contains millions of small files, and the company's internet connection is a 1 Gbps dedicated line with high latency. The migration must complete within 3 weeks and must be verifiable. Which solution meets these requirements MOST cost-effectively and with the LEAST operational overhead?

Accepted Answer

Order multiple AWS Snowball Edge Storage Optimized devices, copy the archive, ship them to AWS, and use AWS DataSync to verify data integrity after import.. For large-scale migrations with limited bandwidth and high latency, AWS Snowball Edge is the recommended service. It physically ships data to AWS, bypassing network constraints. Using multiple devices in parallel accelerates the transfer, and AWS DataSync can verify data integrity post-import. This approach balances cost, speed, and operational effort for a 200 TB dataset.

Answer

Use AWS DataSync over the internet with a 1 Gbps line and enable bandwidth throttling to avoid saturating the link.

Answer

Use AWS Transfer Family with SFTP to upload the archive directly to Amazon S3 over the internet.

Answer

Set up an AWS Storage Gateway Volume Gateway in cached mode and copy the archive to it, then create a snapshot and restore to S3.

Question 5

A retail company is migrating 50 VMware virtual machines to AWS. The VMs run various Linux distributions and Windows Server. The company needs to replicate the VMs to AWS without installing agents on each VM, and wants to minimize cutover time. They also need to test the migrated VMs in AWS before final cutover. Which AWS service should they use to replicate the VMs to AWS?

Accepted Answer

AWS Application Migration Service (MGN). AWS Application Migration Service (MGN) is the primary service for lift-and-shift migrations of physical, virtual, or cloud servers to AWS. It supports agentless replication for VMware vSphere, continuous block-level replication, and test launches for validation. The other services either focus on databases, are deprecated, or handle data transfer rather than full server migration.

Answer

AWS DataSync

Answer

AWS Database Migration Service (DMS)

Answer

AWS Server Migration Service (SMS)

Question 6

A company is migrating a legacy three-tier application to AWS. The application consists of a web tier, an application tier, and a database tier. The company wants to minimize changes to the application and use a lift-and-shift approach. The application tier currently uses a shared file system for session state, which is not supported on AWS. Which migration strategy should the company use to address the session state while minimizing code changes?

Accepted Answer

Use AWS Application Migration Service (AWS MGN) to replicate the servers and continue using a shared file system on Amazon EFS.. AWS Application Migration Service enables a lift-and-shift migration by replicating servers to AWS. By using Amazon EFS as a shared file system, the application can continue using file-based session state without code changes, meeting the requirement to minimize changes. Other options require refactoring or replatforming, which are not lift-and-shift.

Answer

Rehost the application on Amazon EC2 with instance store for session state.

Answer

Replatform the application to use Amazon S3 for session state.

Answer

Refactor the application to use Amazon ElastiCache for Redis for session state.

Question 7

A company is migrating a high-traffic web application from on-premises to AWS. The application consists of a stateless web tier and a stateful session store. The company wants to modernize the session store to be highly available and scalable. The session store must support automatic failover and be accessible from multiple Availability Zones. Which two AWS services should be used together to meet these requirements? (Choose two.)

Accepted Answer

Amazon DynamoDB with on-demand capacity mode. Amazon ElastiCache for Redis with cluster mode enabled and Amazon DynamoDB both provide highly available, scalable session stores that support automatic failover and multi-AZ access. ElastiCache offers in-memory performance, while DynamoDB offers serverless scalability. RDS, S3, and EFS do not meet the low-latency, high-throughput requirements for a session store.

Answer

Amazon EFS with Provisioned Throughput

Answer

Amazon RDS for MySQL with Multi-AZ deployment

Answer

Amazon S3 with Transfer Acceleration

Question 8

A media company is migrating 900 TB of video archives from an on-premises tape library to Amazon S3. The data center has a 500 Mbps internet connection that is saturated by production traffic. The company wants the archives in S3 Glacier Deep Archive with the lowest possible transfer cost and does not need the data within two weeks. Which approach should a solutions architect recommend?

Accepted Answer

Order multiple AWS Snowball Edge Storage Optimized devices, copy the archives locally, and ship them to AWS for import into Amazon S3. For very large one-time transfers where the network cannot meet the timeline, AWS Snowball Edge devices are the appropriate offline method. Multiple devices can be filled in parallel on-premises and shipped, then imported into Amazon S3 where lifecycle rules transition objects to Glacier Deep Archive. Online transfer methods are all constrained by the same saturated 500 Mbps link and cannot complete 900 TB within a reasonable window.

Answer

Use AWS DataSync over the existing 500 Mbps internet connection with a transfer schedule limited to off-peak hours

Answer

Set up an AWS Site-to-Site VPN and use AWS DataSync to transfer the archives directly into S3 Glacier Deep Archive

Answer

Use AWS Transfer Family with SFTP over the internet to upload the archives into an S3 bucket configured with a Glacier Deep Archive lifecycle rule

Question 9

A financial services company is migrating a monolithic Java application from on-premises to AWS. The application uses an Oracle database and performs complex stored procedures. The company wants to reduce licensing costs and improve scalability, but cannot refactor the application code in the short term. The database must remain highly available and support read-heavy workloads. Which migration strategy and target database should a solutions architect recommend?

Accepted Answer

Replatform the application to AWS Elastic Beanstalk and migrate the database to Amazon Aurora PostgreSQL using AWS Schema Conversion Tool (SCT) and AWS Database Migration Service (DMS).. Replatforming to Elastic Beanstalk and migrating to Aurora PostgreSQL via SCT and DMS addresses the need to reduce Oracle licensing costs while minimizing code changes. Aurora PostgreSQL offers high availability and read scaling through replicas, and the conversion tools handle schema and stored procedure migration. This strategy balances cost reduction with operational efficiency.

Answer

Refactor the application to microservices and migrate the database to Amazon Aurora MySQL with a custom data access layer.

Answer

Rehost the application on Amazon EC2 and migrate the database to Amazon RDS for Oracle with Multi-AZ and read replicas.

Answer

Repurchase the application with a SaaS solution and migrate the database to Amazon DynamoDB.

Question 10

A company is migrating a legacy three-tier application to AWS. The application consists of a web tier running on physical servers, an application tier on virtual machines, and a database tier on a proprietary mainframe. The company wants to modernize the application by replacing the mainframe with a managed AWS service while minimizing changes to the application tier. The application tier communicates with the mainframe using a proprietary binary protocol over TCP. Which migration strategy should a solutions architect recommend?

Accepted Answer

Replatform the mainframe to AWS Mainframe Modernization using the Blu Age automated refactoring pattern, and keep the application tier unchanged.. AWS Mainframe Modernization with the Blu Age pattern is designed to refactor legacy mainframe applications into modern Java services on AWS. It can preserve existing communication protocols through generated adapters, so the application tier can continue using the proprietary binary protocol without modification. This aligns with the requirement to replace the mainframe with a managed service while minimizing changes to the application tier.

Answer

Refactor the application tier to use RESTful APIs and migrate the mainframe data to Amazon DynamoDB.

Answer

Rehost the application tier on Amazon EC2 and replatform the mainframe to Amazon Aurora using AWS DMS with a custom protocol adapter.

Answer

Retain the mainframe on-premises and connect it to AWS using AWS Direct Connect, migrating only the web and application tiers to AWS.

Question 11

A financial services company is migrating its on-premises VMware environment to AWS. The company has 200 VMs with varying utilization and wants to minimize migration time and cost. They need to replicate VMs continuously to AWS without installing agents on each VM and perform non-disruptive test launches before cutover. Which AWS service should they use?

Accepted Answer

AWS Application Migration Service (AWS MGN). AWS Application Migration Service (AWS MGN) is the correct choice because it provides agent-based, continuous block-level replication of source servers to AWS, enabling minimal downtime and non-disruptive test launches. It supports a broad range of source environments, including VMware, and is the recommended service for lift-and-shift migrations of VMs. Other services like DMS or DataSync focus on databases or file data, not full server replication.

Answer

AWS DataSync

Answer

AWS Server Migration Service (AWS SMS)

Answer

AWS Database Migration Service (AWS DMS)

Question 12

A company is migrating a legacy on-premises Microsoft SQL Server database to Amazon RDS for SQL Server. The database is 2 TB and is used by a critical application that requires near-zero downtime during the migration. The company has a 100 Mbps Direct Connect connection. Which migration approach should a solutions architect recommend to meet these requirements?

Accepted Answer

Use AWS Database Migration Service (AWS DMS) with change data capture (CDC) to replicate ongoing changes, and cut over during a maintenance window.. AWS DMS with change data capture (CDC) enables continuous replication of data changes from the on-premises SQL Server to Amazon RDS for SQL Server. After the initial full load, CDC keeps the target synchronized, allowing a cutover with minimal downtime during a maintenance window. This approach is specifically designed for near-zero downtime migrations and supports heterogeneous and homogeneous migrations.

Answer

Use AWS Snowball Edge to transfer the database backup to AWS, then restore it to Amazon RDS for SQL Server.

Answer

Take a full backup of the on-premises database, copy it to Amazon S3, and restore it to Amazon RDS for SQL Server using native backup and restore.

Answer

Configure an Always On availability group between the on-premises SQL Server and Amazon RDS for SQL Server, and perform a manual failover.

Question 13

A financial services company is migrating a portfolio-management application to AWS. The application reads market data from a third-party REST API and writes results to an on-premises Oracle database that must remain on-premises for regulatory reasons. The company wants to decouple the application from the database and reduce migration risk by introducing an intermediate layer. The solution must support transactional writes, allow the database to be swapped later with minimal application changes, and provide durable buffering if the database is temporarily unavailable. Which approach best meets these requirements?

Accepted Answer

Deploy an abstraction service on Amazon ECS that exposes a transactional API, persists writes to an Amazon Aurora PostgreSQL-compatible database, and uses AWS DMS to replicate changes to the on-premises Oracle database until the cutover.. A service layer that exposes a transactional API isolates the application from the database engine, so the underlying database can be replaced with minimal code changes. Aurora PostgreSQL-compatible provides durable, transactional storage and high availability, while AWS DMS change data capture continuously replicates changes to the on-premises Oracle database for as long as regulatory requirements demand it. This combination addresses decoupling, durability, and low-risk cutover.

Answer

Introduce an Amazon RDS for Oracle instance in a private subnet, have the application write to it, and configure AWS DMS to replicate changes to the on-premises Oracle database with a ongoing replication task.

Answer

Use an Amazon SQS FIFO queue between the application and a worker that writes to the on-premises Oracle database, and expose the worker through an Application Load Balancer in the on-premises network.

Answer

Deploy AWS Database Migration Service (AWS DMS) with a change data capture task to replicate from the application directly to the on-premises Oracle database, and have the application write to an Amazon Kinesis Data Stream that DMS reads.

Question 14

A company is migrating a legacy application to AWS. The application consists of a web server and an application server. The company wants to improve scalability and reduce operational overhead. The application currently stores session data in a local file on the web server. The company decides to use an Elastic Load Balancer and multiple web servers. Which two actions should the company take to ensure session data is not lost when a web server fails? (Choose two.)

Accepted Answer

Store session data in an Amazon DynamoDB table.. Using Amazon ElastiCache for Redis or Amazon DynamoDB to store session data centralizes session management, decoupling it from individual web servers. This ensures session data survives server failures and supports scalability. Sticky sessions, EBS Multi-Attach, and custom replication do not provide a robust, managed solution for session persistence across multiple servers.

Answer

Configure the web servers to replicate session data to each other using a custom synchronization script.

Answer

Enable sticky sessions on the Elastic Load Balancer.

Answer

Use Amazon EBS volumes with Multi-Attach to share session data across web servers.

Question 15

A company is migrating a legacy .NET application to AWS. The application uses a SQL Server database and is currently hosted on physical servers. The company wants to minimize licensing costs and operational overhead. The application has a steady load and does not require high availability. Which migration strategy should the company use?

Accepted Answer

Migrate the database to Amazon RDS for SQL Server with License Included, and migrate the application to AWS Elastic Beanstalk.. Amazon RDS for SQL Server with License Included provides a managed database service that handles patching, backups, and scaling, reducing operational overhead. It includes the license cost in the instance price, which can be more cost-effective than BYOL for companies without existing licenses. Elastic Beanstalk simplifies application deployment and management, making it a good fit for a steady-load application without high availability requirements.

Answer

Migrate the application to Amazon EC2 with SQL Server Standard Edition using License Included, and enable Multi-AZ for high availability.

Answer

Migrate the application to AWS Lambda with a .NET Core runtime and use Amazon Aurora Serverless for the database.

Answer

Migrate the application to Amazon ECS with Windows containers and use Amazon RDS for SQL Server with Bring Your Own License (BYOL).