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NEW QUESTION 39 Which of the following services can be used to implement DevOps in your company.

• A. AWS Elastic Beanstalk
• B. AWS Cloudformation
• C. All of the above
• D. AWSOpswork

Answer: C Explanation: Explanation All of the services can be used to implement Devops in your company 1) AWS Elastic Beanstalk, an easy-to-use service for deploying and scaling web applications and services developed with Java, .NET, PHP, Node.js, Python, Ruby, Go, and Docker on servers such as Apache, Nginx, Passenger, and I IS. 2) AWS Ops Works, a configuration management service that helps you configure and operate applications of all shapes and sizes using Chef 3) AWS Cloud Formation, which is an easy way to create and manage a collection of related AWS resources, provisioning and updating them in an orderly and predictable fashion. For more information on AWS Devops please refer to the below link: * http://docs.aws.amazon.com/devops/latest/gsg/welcome.html   NEW QUESTION 40 After reviewing the last quarter's monthly bills, management has noticed an increase in the overall bill from Amazon. After researching this increase in cost, you discovered that one of your new services is doing a lot of GET Bucket API calls to Amazon S3 to build a metadata cache of all objects in the applications bucket. Your boss has asked you to come up with a new cost-effective way to help reduce the amount of these new GET Bucket API calls. What process should you use to help mitigate the cost?

• A. Create a new DynamoDB table. Use the new DynamoDB table to store all metadata about all objects uploaded to Amazon S3. Any time a new object is uploaded, update the application's internal Amazon S3 object metadata cache from DynamoDB. C Using Amazon SNS, create a notification on any new Amazon S3 objects that automatical ly updates a new DynamoDB table to store all metadata about the new object. Subscribe the application to the Amazon SNS topic to update its internal Amazon S3 object metadata cache from the DynamoDB table. ^/
• B. Update your Amazon S3 buckets' lifecycle policies to automatically push a list of objects to a new bucket, and use this list to view objects associated with the application's bucket.
• C. Upload all files to an ElastiCache file cache server. Update your application to now read all file metadata from the ElastiCache file cache server, and configure the ElastiCache policies to push all files to Amazon S3 for long-term storage.

Answer: C Explanation: Explanation Option A is an invalid option since Lifecycle policies are normally used for expiration of objects or archival of objects. Option B is partially correct where you store the data in DynamoDB, but then the number of GET requests would still be high if the entire DynamoDB table had to be traversed and each object compared and updated in S3. Option D is invalid because uploading all files to Clastic Cache is not an ideal solution. The best option is to have a notification which can then trigger an update to the application to update the DynamoDB table accordingly. For more information on SNS triggers and DynamoDB please refer to the below link: https://aws.amazon.com/blogs/compute/619/   NEW QUESTION 41 Your development team wants account-level access to production instances in order to do live debugging of a highly secure environment. Which of the following should you do?

• A. Place an internally created private key into a secure S3 bucket with server-side encryption using customer keys and configuration management, create a service account on all the instances using this private key, and assign IAM users to each developer so they can download the file.
• B. Place the credentials provided by Amazon Elastic Compute Cloud (EC2) into a secure Amazon Sample Storage Service (S3) bucket with encryption enabled. Assign AWS Identity and Access Management (IAM) users to each developer so they can download the credentials file.
• C. Place the credentials provided by Amazon EC2 onto an MFA encrypted USB drive, and physically share it with each developer so that the private key never leaves the office.
• D. Place each developer's own public key into a private S3 bucket, use instance profiles and configuration management to create a user account for each developer on all instances, and place the user's public keys into the appropriate account.

Answer: D   NEW QUESTION 42 An Engineering team manages a Node.js e-commerce application. The current environment consists of the following components: " Amazon S3 buckets for storing content " Amazon EC2 for the front-end web servers " AWS Lambda for executing image processing " Amazon DynamoDB for storing session-related data The team expects a significant increase in traffic to the site. The application should handle the additional load without interruption. The team ran initial tests by adding new servers to the EC2 front-end to handle the larger load, but the instances took up to 20 minutes to become fully configured. The team wants to reduce this configuration time. What changes will the Engineering team need to implement to make the solution the MOST resilient and highly available while meeting the expected increase in demand?

• A. Use AWS Elastic Beanstalk with a custom AMI including all web components. Deploy the platform by using an Auto Scaling group behind an Application Load Balancer across multiple Availability Zones. Implement Amazon DynamoDB Auto Scaling. Use Amazon Route 53 to point the application DNS record to the Elastic Beanstalk load balancer.
• B. Use AWS OpsWorks to automatically configure each new EC2 instance as it is launched. Configure the EC2 instances by using an Auto Scaling group behind an Application Load Balancer across multiple Availability Zones. Implement Amazon DynamoDB Auto Scaling. Use Amazon Route 53 to point the application DNS record to the Application Load Balancer.
• C. Configure Amazon CloudFront and have its origin point to Amazon S3 to host the web application. Implement Amazon DynamoDB Auto Scaling. Use Amazon Route 53 to point the application DNS record to the CloudFront DNS name.
• D. Deploy a fleet of EC2 instances, doubling the current capacity, and place them behind an Application Load Balancer. Increase the Amazon DynamoDB read and write capacity units. Add an alias record that contains the Application Load Balancer endpoint to the existing Amazon Route 53 DNS record that points to the application.

Answer: A   NEW QUESTION 43 You have an Auto Scaling group of Instances that processes messages from an Amazon Simple Queue Service (SQS) queue. The group scales on the size of the queue. Processing Involves calling a third-party web service. The web service is complaining about the number of failed and repeated calls it is receiving from you. You have noticed that when the group scales in, instances are being terminated while they are processing. What cost-effective solution can you use to reduce the number of incomplete process attempts?

• A. Modify the application running on the instances to put itself into an Auto Scaling Standby state while it processes a task and return itself to InService when the processing is complete.
• B. Modify the application running on the instances to enable termination protection while it processes a task and disable it when the processing is complete.
• C. Create a new Auto Scaling group with minimum and maximum of 2 and instances running web proxy software. Configure the VPC route table to route HTTP traffic to these web proxies.
• D. Increase the minimum and maximum size for the Auto Scalinggroup, and change the scaling policies so they scale less dynamically.

Answer: A Explanation: Explanation The following diagram shows the lifecycle of the instances in Autoscaling You can put the instances in a standby state, via the application, do the processing and then put the instance back in a state where it can be governed by the Autoscaling Group. For more information on the Autoscaling Group Lifecycle please refer to the below link: * http://docs.aws.amazon.com/autoscaling/latest/userguide/AutoScaingGroupl_ifecycle.htm I Note: As per AWS documentation. To control whether an Auto Scaling group can terminate a particular instance when scaling in, use instance protection. It is termed as Instance protection rather than termination protection when we refer it with "Scaling in process" of ASG. For more information please view the following link: https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-instance-termination.htmlffinstance-protection-instan   NEW QUESTION 44 ...... P.S. Free & New AWS-DevOps dumps are available on Google Drive shared by ValidVCE: https://drive.google.com/open?id=13Ufzl86IOfmW5DycH8M363OoY_DrDZWh