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Q25. - (Topic 3)
A user has deployed an application on an EBS backed EC2 instance. For a better performance of application, it requires dedicated EC2 to EBS traffic. How can the user achieve this?
A. Launch the EC2 instance as EBS dedicated with PIOPS EBS
B. Launch the EC2 instance as EBS enhanced with PIOPS EBS
C. Launch the EC2 instance as EBS dedicated with PIOPS EBS
D. Launch the EC2 instance as EBS optimized with PIOPS EBS
Answer: D
Explanation:
Any application which has performance sensitive workloads and requires minimal variability with dedicated EC2 to EBS traffic should use provisioned IOPS EBS volumes, which are attached to an EBS-optimized EC2 instance or it should use an instance with 10 Gigabit network connectivity. Launching an instance that is EBSoptimized provides the user with a dedicated connection between the EC2 instance and the EBS volume.
Q26. - (Topic 3)
A user has launched an EC2 instance. However, due to some reason the instance was terminated. If the user wants to find out the reason for termination, where can he find the details?
A. It is not possible to find the details after the instance is terminated
B. The user can get information from the AWS console, by checking the Instance description under the State transition reason label
C. The user can get information from the AWS console, by checking the Instance description under the Instance Status Change reason label
D. The user can get information from the AWS console, by checking the Instance description under the Instance Termination reason label
Answer: D
Explanation:
An EC2 instance, once terminated, may be available in the AWS console for a while after termination. The user can find the details about the termination from the description tab under the label State transition reason. If the instance is still running, there will be no reason listed. If the user has explicitly stopped or terminated the instance, the reason will be “User initiated shutdown”.
Q27. - (Topic 3)
Your organization is preparing for a security assessment of your use of AWS.
In preparation for this assessment, which two IAM best practices should you consider implementing? Choose 2 answers
A. Create individual IAM users for everyone in your organization
B. Configure MFA on the root account and for privileged IAM users
C. Assign IAM users and groups configured with policies granting least privilege access
D. Ensure all users have been assigned and are frequently rotating a password, access ID/secret key, and X.509 certificate
Answer: B,C
Explanation: Reference:
http://docs.aws.amazon.com/AmazonS3/latest/dev/example-bucket-policies.html
Q28. - (Topic 3)
A user has configured ELB with two EBS backed instances. The user has stopped the instances for 1 week to save costs. The user restarts the instances after 1 week. Which of the below mentioned statements will help the user to understand the ELB and instance registration better?
A. There is no way to register the stopped instances with ELB
B. The user cannot stop the instances if they are registered with ELB
C. If the instances have the same Elastic IP assigned after reboot they will be registered with ELB
D. The instances will automatically get registered with ELB
Answer: C
Explanation:
Elastic Load Balancing registers the user’s load balancer with his EC2 instance using the associated IP address. When the instances are stopped and started back they will have a different IP address. Thus, they will not get registered with ELB unless the user manually registers them. If the instances are assigned the same Elastic IP after reboot they will automatically get registered with ELB.
Q29. - (Topic 1)
Which of the following requires a custom CloudWatch metric to monitor?
A. Data transfer of an EC2 instance
B. Disk usage activity of an EC2 instance
C. Memory Utilization of an EC2 instance
D. CPU Utilization of an EC2 instance
Answer: C
Explanation: Reference:
http://aws.amazon.com/cloudwatch/
Q30. - (Topic 3)
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. The user should download the activity report of the EC2 services as it has the instance ID wise data
B. It is not possible to get the AWS cost usage data of single region instances separately
C. The user should use Cost Distribution Metadata and AWS detailed billing
D. The user should use Cost Allocation Tags and AWS billing reports
Answer: D
Explanation:
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 centres, application names, or instance type – Production/Dev. to organize usage costs across multiple services.
Q31. - (Topic 2)
A sys admin is trying to understand the Auto Scaling activities. Which of the below mentioned processes is not performed by Auto Scaling?
A. Reboot Instance
B. Schedule Actions
C. Replace Unhealthy
D. Availability Zone Balancing
Answer: A
Explanation:
There are two primary types of Auto Scaling processes: Launch and Terminate, which launch or terminat
instances, respectively. Some other actions performed by Auto Scaling are:
AddToLoadbalancer,
AlarmNotification, HealthCheck, AZRebalance, ReplaceUnHealthy, and ScheduledActions.
Q32. - (Topic 1)
Your application currently leverages AWS Auto Scaling to grow and shrink as load Increases/ decreases and has been performing well Your marketing team expects a steady ramp up in traffic to follow an upcoming campaign that will result in a 20x growth in traffic over 4 weeks Your forecast for the approximate number of Amazon EC2 instances necessary to meet the peak demand is 175.
What should you do to avoid potential service disruptions during the ramp up in traffic?
A. Ensure that you have pre-allocated 175 Elastic IP addresses so that each server will be able to obtain one as it launches
B. Check the service limits in Trusted Advisor and adjust as necessary so the forecasted count remains within limits.
C. Change your Auto Scaling configuration to set a desired capacity of 175 prior to the launch of the marketing campaign
D. Pre-warm your Elastic Load Balancer to match the requests per second anticipated during peak demand prior to the marketing campaign
Answer: D