Question : You attempt to store an object in the US-STANDARD region in Amazon S, and receive a confirmation that it has been successfully stored. You then immediately make another API call and attempt to read this object. S3 tells you that the object does not exist What could explain this behavior? 1. US-STANDARD uses eventual consistency and it can take time for an object to be readable in a bucket 2. Objects in Amazon S3 do not become visible until they are replicated to a second region. 3. Access Mostly Uused Products by 50000+ Subscribers 4. You exceeded the bucket object limit, and once this limit is raised the object will be visible.
Explanation: What data consistency model does Amazon S3 employ?
Amazon S3 buckets in the US Standard region provide eventual consistency. Amazon S3 buckets in all other regions provide read-after-write consistency for PUTS of new objects and eventual consistency for overwrite PUTS and DELETES.
Question : A VPC subnet can have multiple route tables.
Explanation: Each subnet in your VPC must be associated with a route table; the table controls the routing for the subnet. You can associate multiple subnets with the same route table, but you can associate a subnet with only one route table.
Explanation: Q: What languages and development stacks does AWS Elastic Beanstalk support? AWS Elastic Beanstalk supports the following languages and development stacks:
Apache Tomcat for Java applications Apache HTTP Server for PHP applications Apache HTTP Server for Python applications Nginx or Apache HTTP Server for Node.js applications Passenger for Ruby applications Microsoft IIS 7.5 for .NET applications