A company wants to retire its Oracle Solaris NFS storage arrays. The company requires rapid data
migration over its internet network connection to a combination of destinations for Amazon S3.
Amazon Elastic File System (Amazon EFS), and Amazon FSx lor Windows File Server. The company
also requires a full initial copy, as well as incremental transfers of changes until the retirement of the
storage arrays. All data must be encrypted and checked for integrity.
Whatshould a solutions architect recommend to meet these requirements?
Correct Answer: B
Explanation:
Correct Answer: B (AWS DataSync). AWS DataSync is the most suitable service because it is purpose-built for high-speed, secure, and automated migration of on-premises file systems (like NFS on Oracle Solaris) to AWS storage services such as Amazon S3, Amazon EFS, and Amazon FSx for Windows File Server. It supports a full initial data transfer followed by incremental synchronization of changed data until the migration is complete, which matches the requirement for continuous updates before retirement of the source system. DataSync also ensures data integrity through automatic verification and encrypts data in transit using TLS, minimizing operational overhead while handling large-scale data movement efficiently over the internet or Direct Connect.
Question 2
A company has an application that sells tickets online and experiences bursts of demand every 7
days. The application has a stateless presentation layer running on Amazon EC2. an Oracle database
to store unstructured data catalog information, and a backend API layer. The front-end layer uses an
Elastic Load Balancer to distribute the load across nine On-Demand Instances over three Availability
Zones (AZs). The Oracle database is running on a single EC2 instance. The company is experiencing
performance issues when running more than two concurrent campaigns. A solutions architect must
design a solution that meets the following requirements:
• Address scalability issues.
• Increase the level of concurrency.
• Eliminate licensing costs.
• Improve reliability.
Which set ofstepsshould the solutions architect take?
Correct Answer: C
Explanation:
The best solution is to create an Auto Scaling group for the front-end layer using a mix of On-Demand and Spot Instances to handle burst traffic and improve scalability, and migrate the Oracle database to Amazon DynamoDB to eliminate Oracle licensing costs while also improving scalability and concurrency. DynamoDB is a fully managed, serverless NoSQL database that automatically scales to handle high throughput and concurrent workloads, making it ideal for unpredictable traffic spikes. This architecture also improves reliability by removing the single-instance database bottleneck and ensures better performance during campaign bursts without manual capacity planning.
Question 3
A company is running an Apache Hadoop cluster on Amazon EC2 instances. The Hadoop cluster
stores approximately 100 TB of data for weekly operational reports and allows occasional access for
data scientists to retrieve data. The company needs to reduce the cost and operational complexity for storing and serving this
data.
Which solution meetsthese requirements in the MOST cost-effective manner?
Correct Answer: C
Explanation:
The most cost-effective and operationally simple solution is to move the 100 TB dataset from the EC2-based Hadoop cluster to Amazon S3 and use Amazon Athena for querying and generating weekly reports. Amazon S3 provides highly durable, low-cost object storage that eliminates the need to manage Hadoop infrastructure, while Athena allows serverless SQL queries directly on data stored in S3 without requiring any cluster provisioning or maintenance. This significantly reduces operational overhead and cost, especially for infrequent access patterns like weekly reporting and occasional data science queries, while still providing scalable, on-demand analytics capability.
Demo Practice Mode
You are viewing only the questions marked as Demo.