Your website is serving on-demand training videos to your workforce. Videos are uploaded monthly in high resolution MP4 format. Your workforce is distributed globally often on the move and using company-provided tablets that require the HTTP Live Streaming (HLS) protocol to watch a video. Your company has no video transcoding expertise and it required you may need to pay for a consultant.
How do you implement the most cost-efficient architecture without compromising high availability and quality of video delivery'?

• A.A video transcoding pipeline running on EC2 using SOS to distribute tasks and Auto Scaling to adjust the number of nodes depending on the length of the queue E8S volumes to host videos and EBS snapshots to incrementally backup original files after a few days CloudFront to serve HLS transcoded videos from EC2
• B.Elastic Transcoder to transcode original nigh-resolution MP4 videos to HLS EBS volumes to host videos and EBS snapshots to incrementally backup original rues after a fe days.CioudFront to serve HLS transcoded videos from EC2.
• C.A video transcoding pipeline running on EC2 using SQS to distribute tasks and Auto Scaling to adjust the number or nodes depending on the length of the queue S3 to host videos with Lifecycle Management to archive all files to Glacier after a few days CloudFront to serve HLS transcoding videos from Glacier
• D.Elastic Transcoder to transcode original high-resolution MP4 videos to HLS S3 to host videos with Utecycle Management to archive original flies to Glacier after a few days CloudFront to serve HLS transcoded videos from S3

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A user is trying to create a PIOPS EBS volume with 3 GB size and 90 IOPS. Will AWS create the volume?

• A.No, since the PIOPS and EBS size ratio is less than 30
• B.Yes, since the ratio between EBS and IOPS is less than 30
• C.No, the EBS size is less than 4GB
• D.Yes, since PIOPS is higher than 100

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A company is investigating potential solutions that would collect, process, and store users' service usage data.
The business objective is to create an analytics capability that will enable the company to gather operational insights quickly using standard SQL queries. The solution should be highly available and ensure Atomicity, Consistency, Isolation, and Durability (ACID) compliance in the data tier.
Which solution should a solutions architect recommend?

• A.Use Amazon DynamoDB transactions
• B.Deploy PostgreSQL on an Amazon EC2 instance that uses Amazon EBS Throughput Optimized HDD (st1) storage.
• C.Create an Amazon Neptune database in a Multi AZ design
• D.Use a fully managed Amazon RDS for MySQL database in a Multi-AZ design

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While debugging a backend application for an IoT system that supports globally distributed devices, a Solutions Architect notices that stale data is occasionally being sent to user devices. Devices often share data, and stale data does not cause issues in most cases. However, device operations are disrupted when a device reads the stale data after an update.
The global system has multiple identical application stacks deployed in different AWS Regions. If a user device travels out of its home geographic region, it will always connect to the geographically closest AWS Region to write or read data. The same data is available in all supported AWS Regions using an Amazon DynamoDB global table.
What change should be made to avoid causing disruptions in device operations?

• A.Update the backend to use strongly consistent reads. Update the devices to always write to and read from their home AWS Region.
• B.Enable strong consistency globally on a DynamoDB global table. Update the backend to use strongly consistent reads.
• C.Switch the backend data store to Amazon Aurora MySQL with cross-region replicas. Update the backend to always write to the master endpoint.
• D.Select one AWS Region as a master and perform all writes in that AWS Region only. Update the backend to use strongly consistent reads.

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A company hosts a website on Amazon EC2 instances behind an Application Load Balancer (ALB) The website serves static content Website traffic is increasing and the company is concerned about a potential increase in cost.
What should a solutions architect do to reduce the cost of the website?

• A.Create an Amazon CloudFront distribution to cache static files at edge locations.
• B.Create an Amazon ElastiCache cluster Connect the ALB to the ElastiCache cluster to serve cached files.
• C.Create an AWS WAF web ACL and associate it with the ALB. Add a rule to the web ACL to cache static files.
• D.Create a second ALB in an alternative AWS Region Route user traffic to the closest Region to minimize data transfer costs

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