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?
D
AWS provides cost allocation tags to categorize and track the AWS costs. When the user applies tags to his AWS resources (such as Amazon EC2 instances or
Amazon S3 buckets), AWS generates a cost allocation report as a comma-separated value (CSV file) with the usage and costs aggregated by those tags. The user can apply tags which represent business categories (such as cost centers, application names, or instance type ג€" Production/Dev. to organize usage costs across multiple services.
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 center. Which of the below mentioned components is not present when the VPC is setup with the wizard?
B
The user can create subnets as per the requirement within a VPC. If the user wants to connect VPC from his own data center, he can setup a public and VPN only subnet which uses hardware VPN access to connect with his data center. When the user has configured this setup with Wizard, it will update the main route table used with the VPN-only subnet, create a custom route table and associate it with the public subnet. It also creates an internet gateway for the public subnet. The wizard does not create a NAT instance by default. The user can create it manually and attach it with a VPN only subnet.
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?
C
A Virtual Private Cloud (VPC) is a virtual network dedicated to the user's AWS account. AWS provides two features the user can use to increase security in VPC: security groups and network ACLs. Security groups work at the instance level while ACLs work at the subnet level. When a user creates a security group with
AWS VPC, by default it will allow all the outbound traffic but block all inbound traffic.
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?
B
If Auto Scaling is trying to launch an instance and if the launching of the instance fails continuously, it will suspend the processes for the Auto Scaling groups since it repeatedly failed to launch an instance. This is known as an administrative suspension. It commonly applies to the Auto Scaling group that has no running instances which is trying to launch instances for more than 24 hours, and has not succeeded in that to do so.
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?
C
Amazon RDS when enabled with Multi AZ will handle failovers automatically. Thus, the user can resume database operations as quickly as possible without administrative intervention. The primary DB instance switches over automatically to the standby replica if any of the following conditions occur:
An Availability Zone outage -
The primary DB instance fails -
The DB instance's server type is changed
The DB instance is undergoing software patching
A manual failover of the DB instance was initiated using Reboot with failover
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?
B
The Auto Scaling group determines the health state of each instance periodically by checking the results of the Amazon EC2 instance status checks. If the instance status description shows any other state other than ג€runningג€ or the system status description shows impaired, Auto Scaling considers the instance to be unhealthy. Thus, it terminates the instance and launches a replacement.
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?
D
AWS Cloudformation is an application management tool which provides application modelling, deployment, configuration, management and related activities.
AWS CloudFormation provides a WaitCondition resource which acts as a barrier and blocks the creation of other resources until a completion signal is received from an external source, such as a user application or management system.
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?
B
If the user has configured two separate single availability zone Auto Scaling groups and wants to merge them then he should update one of the groups and delete the other one. While updating the first group it is recommended that the user should increase the size of the minimum, maximum and desired capacity as a summation of both the groups.
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?
C
AWS consolidated billing enables the organization to consolidate payments for multiple Amazon Web Services (AWS. accounts within a single organization by making a single paying account. To add a particular account (linked) to the master (payee) account, the payee account has to request the linked account to join consolidated billing. Once the linked account accepts the request henceforth all charges incurred by the linked account will be paid by the payee account.
A sysadmin has created the below mentioned policy on an S3 bucket named cloudacademy. What does this policy define?
C
Tested and got an error while saving the above S3 bucket policy:
ג€ Action does not apply to any resource(s) in statement ג€" Action ג€s3:GetObjectג€ in Statement ג€Stmt123456788ג€ ג€
