A user has created a subnet in VPC and launched an EC2 instance within it. The user has not
selected the option to assign the IP address while launching the instance. The user has 3 elastic
IPs and is trying to assign one of the Elastic IPs to the VPC instance from the console. The
console does not show any instance in the IP assignment screen. What is a possible reason that
the instance is unavailable in the assigned IP console?

A user has launched multiple EC2 instances for the purpose of development and testing in the
same region. The user wants to find the separate cost for the production and development
instances. How can the user find the cost distribution?

A user has created a VPC with CIDR 20.0.0.0/16 using VPC Wizard. The user has created a
public CIDR
(20.0.0.0/24. and a VPN only subnet CIDR (20.0.1.0/24. along with the hardware VPN access to
connect to the user’s data centre. Which of the below mentioned components is not present when
the VPC is setup with the wizard?

A user has created a VPC with the public subnet. The user has created a security group for that
VPC. Which of the below mentioned statements is true when a security group is created?

A user has setup an Auto Scaling group. The group has failed to launch a single instance for more
than 24 hours. What will happen to Auto Scaling in this condition?

A user is planning to set up the Multi AZ feature of RDS. Which of the below mentioned conditions
won’t take advantage of the Multi AZ feature?

An organization has configured Auto Scaling with ELB. One of the instance health check returns
the status as Impaired to Auto Scaling. What will Auto Scaling do in this scenario?

A user is using Cloudformation to launch an EC2 instance and then configure an application after
the instance is launched. The user wants the stack creation of ELB and AutoScaling to wait until
the EC2 instance is launched and configured properly. How can the user configure this?

An organization has configured two single availability zones. The Auto Scaling groups are
configured in
separate zones. The user wants to merge the groups such that one group spans across multiple
zones. How can the user configure this?

An AWS account wants to be part of the consolidated billing of his organization’s payee account.
How can the owner of that account achieve this?