In Amazon Cognito what is a silent push notification?

In the context of Amazon ElastiCache CLI, which of the following commands can you use to view
all ElastiCache instance events for the past 24 hours?

In the context of IAM roles for Amazon EC2, which of the following NOT true about delegating
permission to make API requests?

Identify a true statement about using an IAM role to grant permissions to applications running on
Amazon EC2 instances.

In Amazon Redshift, how many slices does a dw2.8xlarge node have?

True or False: The Amazon ElastiCache clusters are not available for use in VPC at this time.

A user has created a VPC with CIDR 20.0.0.0/16. The user has created one subnet with CIDR
20.0.0.0/16 in this VPC. The user is trying to create another subnet with the same VPC for CIDR
20.0.0.1/24. What will happen in this scenario?

ExamKiller has created a multi-tenant Learning Management System (LMS). The application is
hosted for five different tenants (clients) in the VPCs of the respective AWS accounts of the

tenant. ExamKiller wants to setup a centralized server which can connect with the LMS of each
tenant upgrade if required. ExamKiller also wants to ensure that one tenant VPC should not be
able to connect to the other tenant VPC for security reasons. How can ExamKiller setup this
scenario?

Can a Direct Connect link be connected directly to the Internet?

An organization is having a VPC for the HR department, and another VPC for the Admin
department. The HR department requires access to all the instances running in the Admin VPC
while the Admin department requires access to all the resources in the HR department. How can
the organization setup this scenario?