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Q1. - (Topic 1)
Your organization's security policy requires that all privileged users either use frequently rotated passwords or one-time access credentials in addition to username/password.
Which two of the following options would allow an organization to enforce this policy for AWS users?
Choose 2 answers
A. Configure multi-factor authentication for privileged 1AM users
B. Create 1AM users for privileged accounts
C. Implement identity federation between your organization's Identity provider leveraging the 1AM Security Token Service
D. Enable the 1AM single-use password policy option for privileged users
Answer: C,D
Q2. - (Topic 1)
You have started a new job and are reviewing your company's infrastructure on AWS You notice one web application where they have an Elastic Load Balancer (&B) in front of web instances in an Auto Scaling Group When you check the metrics for the ELB in CloudWatch you see four healthy instances In Availability Zone (AZ) A and zero in AZ B There are zero unhealthy instances.
What do you need to fix to balance the instances across AZs?
A. Set the ELB to only be attached to another AZ
B. Make sure Auto Scaling is configured to launch in both AZs
C. Make sure your AMI is available in both AZs
D. Make sure the maximum size of the Auto Scaling Group is greater than 4
Answer: B
Q3. - (Topic 1)
You are tasked with the migration of a highly trafficked Node JS application to AWS In order to comply with organizational standards Chef recipes must be used to configure the application servers that host this application and to support application lifecycle events.
Which deployment option meets these requirements while minimizing administrative burden?
A. Create a new stack within Opsworks add the appropriate layers to the stack and deploy the application
B. Create a new application within Elastic Beanstalk and deploy this application to a new environment
C. Launch a Mode JS server from a community AMI and manually deploy the application to the launched EC2 instance
D. Launch and configure Chef Server on an EC2 instance and leverage the AWS CLI to launch application servers and configure those instances using Chef.
Answer: B
Explanation: Reference:
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.deployment.html
Q4. - (Topic 3)
A user has launched an RDS postgreSQL DB with AWS. The user did not specify the maintenance window during creation. The user has configured RDS to update the DB instance type from micro to large. If the user wants to have it during the maintenance window, what will AWS do?
A. AWS will not allow to update the DB until the maintenance window is configured
B. AWS will select the default maintenance window if the user has not provided it
C. AWS will ask the user to specify the maintenance window during the update
D. It is not possible to change the DB size from micro to large with RDS
Answer: B
Explanation:
AWS RDS has a compulsory maintenance window which by default is 30 minutes. If the user does not specify the maintenance window during the creation of RDS then AWS will select a 30-minute maintenance window randomly from an 8-hour block of time per region. In this case, Amazon RDS assigns a 30-minute maintenance window on a randomly selected day of the week.
Q5. - (Topic 2)
An organization is planning to use AWS for their production roll out. The organization wants to implement
automation for deployment such that it will automatically create a LAMP stack, download the latest PHP
installable from S3 and setup the ELB. Which of the below mentioned AWS services meets the quirement for making an orderly deployment of the software?
A. AWS Elastic Beanstalk
B. AWS Cloudfront
C. AWS Cloudformation
D. AWS DevOps
Answer: C
Explanation:
AWS Cloudformation is an application management tool which provides application modelling, deployment, configuration, management and related activities. Cloudformation provides an easy way to create and delete the collection of related AWS resources and provision them in an orderly way. AWS CloudFormation automates and simplifies the task of repeatedly and predictably creating groups of related resources that power the user’s applications. AWS Cloudfront is a CDN; Elastic Beanstalk does quite a few of the required tasks. However, it is a PAAS which uses a ready AMI. AWS Elastic Beanstalk provides an environment to easily develop and run applications in the cloud.
Q6. - (Topic 3)
A user has created an EBS volume of 10 GB and attached it to a running instance. The user is trying to access EBS for first time. Which of the below mentioned options is the correct statement with respect to a first time EBS access?
A. The volume will show a size of 8 GB
B. The volume will show a loss of the IOPS performance the first time
C. The volume will be blank
D. If the EBS is mounted it will ask the user to create a file system
Answer: B
Explanation:
A user can create an EBS volume either from a snapshot or as a blank volume. If the volume is from a snapshot it will not be blank. The volume shows the right size only as long as it is mounted. This shows that the file system is created. When the user is accessing the volume the AWS EBS will wipe out the block storage or instantiate from the snapshot. Thus, the volume will show a loss of IOPS. It is recommended that the user should pre warm the EBS before use to achieve better IO.
Q7. - (Topic 3)
A user runs the command “dd if=/dev/zero of=/dev/xvdfbs=1M” on a fresh blank EBS volume attached to a Linux instance. Which of the below mentioned activities is the user performing with the command given above?
A. Creating a file system on the EBS volume
B. Mounting the device to the instance
C. Pre warming the EBS volume
D. Formatting the EBS volume
Answer: C
Explanation:
When the user creates a new EBS volume and is trying to access it for the first time it will encounter reduced IOPS due to wiping or initiating of the block storage. To avoid this as well as achieve the best performance it is required to pre warm the EBS volume. For a blank volume attached with a Linux OS, the “dd” command is used to write to all the blocks on the device. In the command “dd if=/dev/zero of=/dev/xvdfbs=1M” the parameter “if =import file” should be set to one of the Linux virtual devices, such as /dev/zero. The “of=output file” parameter should be set to the drive that the user wishes to warm. The “bs” parameter sets the block size of the write operation; for optimal performance, this should be set to 1 MB.
Q8. - (Topic 2)
A user is publishing custom metrics to CloudWatch. Which of the below mentioned statements will help the user understand the functionality better?
A. The user can use the CloudWatch Import tool
B. The user should be able to see the data in the console after around 15 minutes
C. If the user is uploading the custom data, the user must supply the namespace, timezone, and metric name as part of the command
D. The user can view as well as upload data using the console, CLI and APIs
Answer: B
Explanation:
AWS CloudWatch supports the custom metrics. The user can always capture the custom data and upload the data to CloudWatch using CLI or APIs. The user has to always include the namespace as a part of the request. However, the other parameters are optional. If the user has uploaded data using CLI, he can view it as a graph inside the console. The data will take around 2 minutes to upload but can be viewed only after around 15 minutes.