AWS AWS Migration & Hybrid Cloud 4 — Questions and Answers
Question 1: A company is using AWS DataSync to migrate 500 TB of NFS data to Amazon S3. To maximize throughput, how should DataSync tasks be configured?
- Use a single DataSync task with default settings
- Use multiple DataSync tasks running in parallel across different source directories (Correct answer)
- Enable DataSync compression and run a single task
- Use AWS Snowball Edge instead since DataSync cannot handle 500 TB
Correct answer: Use multiple DataSync tasks running in parallel across different source directories
Running multiple DataSync tasks in parallel across different source directories maximizes aggregate throughput and reduces total migration time.
Question 2: Which AWS service provides a fully managed, petabyte-scale data transport solution that uses secure, rugged devices to physically move data to AWS when network bandwidth is insufficient?
- AWS DataSync
- AWS Transfer Family
- AWS Snowball Edge (Correct answer)
- AWS Direct Connect
Correct answer: AWS Snowball Edge
AWS Snowball Edge is a physical device used to transfer petabyte-scale data when network transfer is impractical due to bandwidth or time constraints.
Question 3: A company wants to keep its on-premises Oracle database as the primary system while replicating changes to Amazon RDS in near real-time. Which AWS service is best suited for this ongoing replication?
- AWS Database Migration Service (DMS) with ongoing replication (Correct answer)
- AWS DataSync with scheduled sync
- AWS Backup with cross-region copy
- Amazon S3 Transfer Acceleration
Correct answer: AWS Database Migration Service (DMS) with ongoing replication
AWS DMS supports ongoing replication (CDC) that continuously streams changes from a source database to a target, enabling near real-time synchronization.
Question 4: An enterprise needs a dedicated, private connection between its on-premises data center and AWS with consistent network performance. Which solution meets this requirement?
- AWS Site-to-Site VPN over the public internet
- AWS Direct Connect (Correct answer)
- AWS Transit Gateway with VPN attachments
- Amazon CloudFront with Lambda@Edge
Correct answer: AWS Direct Connect
AWS Direct Connect provides a dedicated, private network connection from on-premises to AWS, delivering consistent throughput and reduced latency compared to internet-based connections.
Question 5: Which AWS Migration Hub feature allows you to track the migration status of applications across multiple AWS migration tools from a single console?
- Migration Hub Refactor Spaces
- Migration Hub Orchestrator (Correct answer)
- Migration Hub Strategy Recommendations
- Migration Hub home region tracking
Correct answer: Migration Hub Orchestrator
Migration Hub Orchestrator automates and coordinates multi-step migration workflows, tracking progress across tools like DMS, Application Migration Service, and others.
Question 6: A company is migrating VMs from VMware vSphere to AWS using Application Migration Service (MGN). What is the correct order of steps in the MGN replication lifecycle?
- Install agent → Continuous replication → Launch test instance → Cutover (Correct answer)
- Launch test instance → Install agent → Continuous replication → Cutover
- Continuous replication → Install agent → Launch test instance → Cutover
- Install agent → Launch test instance → Cutover → Continuous replication
Correct answer: Install agent → Continuous replication → Launch test instance → Cutover
MGN follows the sequence: install the replication agent on the source server, allow continuous block-level replication, launch a test instance to validate, then perform the final cutover.
Question 7: A hybrid cloud architecture uses AWS Storage Gateway in File Gateway mode. What is a key characteristic of this configuration?
- It presents iSCSI block volumes to on-premises applications
- It exposes an NFS/SMB interface on-premises while storing data durably in Amazon S3 (Correct answer)
- It caches entire S3 bucket contents locally for offline access
- It replicates on-premises EBS snapshots to AWS
Correct answer: It exposes an NFS/SMB interface on-premises while storing data durably in Amazon S3
File Gateway presents NFS and SMB file shares to on-premises clients while transparently storing the data as objects in Amazon S3.
AWS AWS Migration & Hybrid Cloud 4
A company is using AWS DataSync to migrate 500 TB of NFS data to Amazon S3.
To maximize throughput, how should DataSync tasks be configured?