A Developer is writing an application that runs on Amazon EC2 instances in an Auto Scaling group. The application data is stored in an Amazon DynamoDB table and records are constantly updated by all instances. An instance sometimes retrieves old data. The Developer wants to correct this by making sure the reads are strongly consistent. How can the Developer accomplish this?
A) Set ConsistentRead to true when calling GetItem.
B) Create a new DynamoDB Accelerator (DAX) table.
C) Set Consistency to strong when calling UpdateTable.
D) Use the GetShardIterator command.

Question

Quizplus · Accepted Answer

Setting ConsistentRead to true when calling GetItem ensures that the reads are strongly consistent, meaning the data returned will reflect all writes that received a successful response prior to the read.

A Developer Is Writing an Application That Runs on Amazon