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August 10, 2017

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Q181. - (Topic 1) 

If you want to launch Amazon Elastic Compute Cloud (EC2) Instances and assign each Instance a predetermined private IP address you should: 

A. Assign a group or sequential Elastic IP address to the instances 

B. Launch the instances in a Placement Group 

C. Launch the instances in the Amazon virtual Private Cloud (VPC). 

D. Use standard EC2 instances since each instance gets a private Domain Name Service (DNS) already 

E. Launch the Instance from a private Amazon Machine image (Mil) 


Explanation: Reference: 


Q182. - (Topic 3) 

A user has launched an EC2 instance and deployed a production application in it. The user wants to prohibit any mistakes from the production team to avoid accidental termination. 

How can the user achieve this? 

A. The user can the set DisableApiTermination attribute to avoid accidental termination 

B. It is not possible to avoid accidental termination 

C. The user can set the Deletion termination flag to avoid accidental termination 

D. The user can set the InstanceInitiatedShutdownBehavior flag to avoid accidental termination 



It is always possible that someone can terminate an EC2 instance using the Amazon EC2 console, command line interface or API by mistake. If the admin wants to prevent the instance from being accidentally terminated, he can enable termination protection for that instance. The DisableApiTermination attribute controls whether the instance can be terminated using the console, CLI or API. By default, termination protection is disabled for an EC2 instance. When it is set it will not allow the user to terminate the instance from CLI, API or the console. 

Q183. - (Topic 2) 

A user is checking the CloudWatch metrics from the AWS console. The user notices that the CloudWatch data is coming in UTC. The user wants to convert the data to a local time zone. How can the user perform this? 

A. In the CloudWatch dashboard the user should set the local timezone so that CloudWatch shows the data only in the local time zone 

B. In the CloudWatch console select the local timezone under the Time Range tab to view the data as per the local timezone 

C. The CloudWatch data is always in UTC; the user has to manually convert the data 

D. The user should have send the local timezone while uploading the data so that CloudWatch will show the data only in the local timezone 



If the user is viewing the data inside the CloudWatch console, the console provides options to filter values either using the relative period, such as days/hours or using the Absolute tab where the user can provide data with a specific date and time. The console also provides the option to search using the local timezone under the time range caption in the console because the time range tab allows the user to change the time zone. 

Q184. - (Topic 3) 

A user has enabled session stickiness with ELB. The user does not want ELB to manage the cookie; instead he wants the application to manage the cookie. What will happen when the server instance, which is bound to a cookie, crashes? 

A. The response will have a cookie but stickiness will be deleted 

B. The session will not be sticky until a new cookie is inserted 

C. ELB will throw an error due to cookie unavailability D. The session will be sticky and ELB will route requests to another server as ELB keeps replicating the Cookie 



With Elastic Load Balancer, if the admin has enabled a sticky session with application controlled stickiness, the load balancer uses a special cookie generated by the application to associate the session with the original server which handles the request. ELB follows the lifetime of the application-generated cookie corresponding to the cookie name specified in the ELB policy configuration. The load balancer only inserts a new stickiness cookie if the application response includes a new application cookie. The load balancer stickiness cookie does not update with each request. If the application cookie is explicitly removed or expires, the session stops being sticky until a new application cookie is issued. 

Q185. - (Topic 3) 

An organization has configured Auto Scaling with ELB. There is a memory issue in the application which is causing CPU utilization to go above 90%. The higher CPU usage triggers an event for Auto Scaling as per the scaling policy. If the user wants to find the root cause inside the application without triggering a scaling activity, how can he achieve this? 

A. Stop the scaling process until research is completed 

B. It is not possible to find the root cause from that instance without triggering scaling 

C. Delete Auto Scaling until research is completed 

D. Suspend the scaling process until research is completed 



Auto Scaling allows the user to suspend and then resume one or more of the Auto Scaling processes in the Auto Scaling group. This is very useful when the user wants to investigate a configuration problem or some other issue, such as a memory leak with the web application and then make changes to the application, without triggering the Auto Scaling process. 

Q186. - (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 



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. 

Q187. - (Topic 3) 

A user has scheduled the maintenance window of an RDS DB on Monday at 3 AM. Which of the below  mentioned events may force to take the DB instance offline during the maintenance window? 

A. Enabling Read Replica 

B. Making the DB Multi AZ 

C. DB password change 

D. Security patching 



Amazon RDS performs maintenance on the DB instance during a user-definable maintenance window. The system may be offline or experience lower performance during that window. The only maintenance events that may require RDS to make the DB instance offline are: Scaling compute operations Software patching. Required software patching is automatically scheduled only for patches that are security and durability related. Such patching occurs infrequently (typically once every few months. and seldom requires more than a fraction of the maintenance window. 

Q188. - (Topic 2) 

An organization is generating digital policy files which are required by the admins for verification. Once the files are verified they may not be required in the future unless there is some compliance issue. If the organization wants to save them in a cost effective way, which is the best possible solution? 


B. AWS S3 


D. AWS Glacier 



Amazon S3 stores objects according to their storage class. There are three major storage classes: Standard, Reduced Redundancy and Glacier. Standard is for AWS S3 and provides very high durability. However, the costs are a little higher. Reduced redundancy is for less critical files. Glacier is for archival and the files which are accessed infrequently. It is an extremely low-cost storage service that provides secure and durable storage for data archiving and backup. 

Q189. - (Topic 3) 

A user is trying to understand the detailed CloudWatch monitoring concept. Which of the below mentioned services does not provide detailed monitoring with CloudWatch? 




D. AWS Route53 



CloudWatch is used to monitor AWS as well as the custom services. It provides either basic or detailed monitoring for the supported AWS products. In basic monitoring, a service sends data points to CloudWatch every five minutes, while in detailed monitoring a service sends data points to CloudWatch every minute. Services, such as RDS, EC2, Auto Scaling, ELB, and Route 53 can provide the monitoring data every minute. 

Q190. - (Topic 2) 

A user has a refrigerator plant. The user is measuring the temperature of the plant every 15 minutes. If the user wants to send the data to CloudWatch to view the data visually, which of the below mentioned statements is true with respect to the information given above? 

A. The user needs to use AWS CLI or API to upload the data 

B. The user can use the AWS Import Export facility to import data to CloudWatch 

C. The user will upload data from the AWS console 

D. The user cannot upload data to CloudWatch since it is not an AWS service metric 



AWS CloudWatch supports the custom metrics. The user can always capture the custom data and upload the data to CloudWatch using CLI or APIs. While sending the data the user has to include the metric name, namespace and timezone as part of the request. 

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