In Amazon Cognito what is a silent push notification?

A. It is a push message that is received by your application on a user's device that will not be seen by the user.
B. It is a push message that is received by your application on a user's device that will return the user's geolocation.
C. It is a push message that is received by your application on a user's device that will not be heard by the user.
D. It is a push message that is received by your application on a user's device that will return the user's authentication credentials.

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?

A. elasticache-events –duration 24
B. elasticache-events –duration 1440
C. elasticache-describe-events –duration 24
D. elasticache describe-events –source-type cache-cluster –duration 1440

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

A. You cannot create an IAM role.
B. You can have the application retrieve a set of temporary credentials and use them.
C. You can specify the role when you launch your instances.
D. You can define which accounts or AWS services can assume the role.

Out of the striping options available for the EBS volumes, which one has the following disadvantage: 'Doubles the amount of I/O required from the instance to EBS compared to RAID 0, because you're mirroring all writes to a pair of volumes, limiting how much you can stripe.'?

A. Raid 1
B. Raid 0
C. RAID 1+0 (RAID 10)
D. Raid 2

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

A. When AWS credentials are rotated; developers have to update only the root Amazon EC2 instance that uses their credentials.
B. When AWS credentials are rotated, developers have to update only the Amazon EC2 instance on which the password policy was applied and which uses their credentials.
C. When AWS credentials are rotated, you don't have to manage credentials and you don't have to worry about long-term security risks.
D. When AWS credentials are rotated, you must manage credentials and you should consider precautions for long-term security risks.

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

A. 16
B. 8
C. 32
D. 2

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

A. TRUE
B. True, but they are available only in the GovCloud.
C. True, but they are available only on request
D. FALSE

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?

A. The VPC will modify the first subnet CIDR automatically to allow the second subnet IP range
B. The second subnet will be created
C. It will throw a CIDR overlaps error
D. It is not possible to create a subnet with the same CIDR as VPC

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

A. ABC has to setup one centralized VPC which will peer in to all the other VPCs of the tenants.
B. ABC should setup VPC peering with all the VPCs peering each other but block the IPs from CIDR of the tenant VPCs to deny them.
C. ABC should setup all the VPCs with the same CIDR but have a centralized VPC. This way only the centralized VPC can talk to the other VPCs using VPC peering.
D. ABC should setup all the VPCs meshed together with VPC peering for all VPCs.

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

A. Yes, this can be done if you pay for it.
B. Yes, this can be done only for certain regions.
C. Yes
D. No