SOA-C01 Exam Dumps : AWS Certified SysOps Administrator - Associate

A SysOps Administrator is maintaining an application that runs on Amazon EC2 instances behind an application Load Balancer (ALB). Users are reporting errors when attempting to launch the application. The administrator notices an increase in the httpcode_ELS_5xx_Count Amazon CloudWatch metric for the load balancer.

What is the possible cause for this increase?

A company has mandated the use of multi-factor authentication (MFA) for all 1AM users, and requires users to make all API calls using the CLI. However, users are not prompted to enter MFA tokens, and are able to run CLI commands without MFA. In an attempt to enforce MFA. the company attached an 1AM policy to all users that denies API calls that have not been authenticated with MFA.

What additional step must be taken to ensure that API calls are authenticated using MFA?

An organization has decided to consolidate storage and move all of its backups and archives to Amazon S3. With all of the data gathered into a hierarchy under a single directory, the organization determines there is 70 TB data that needs to be uploaded. The organization currently has a 150-Mbps connection with 10 people working at the location.

Which service would be the MOST efficient way to transfer this data to Amazon S3?