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July 30, 2017

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Q111. - (Topic 3) 

A user has launched an EC2 instance from an instance store backed AMI. The infrastructure team wants to create an AMI from the running instance. Which of the below mentioned credentials is not required while creating the AMI? 

A. AWS account ID 

B. X.509 certificate and private key 

C. AWS login ID to login to the console 

D. Access key and secret access key 

Answer:

Explanation: 

When the user has launched an EC2 instance from an instance store backed AMI and the admin team wants to create an AMI from it, the user needs to setup the AWS AMI or the API tools first. Once the tool is setup the user will need the following credentials: 

AWS account ID; 

AWS access and secret access key; 

X.509 certificate with private key. 


Q112. - (Topic 1) 

Your team Is excited about the use of AWS because now they have access to programmable Infrastructure" You have been asked to manage your AWS infrastructure In a manner similar to the way you might manage application code You want to be able to deploy exact copies of different versions of your infrastructure, stage changes into different environments, revert back to previous versions, and identify what versions are running at any particular time (development test QA. production). 

Which approach addresses this requirement? 

A. Use cost allocation reports and AWS Opsworks to deploy and manage your infrastructure. 

B. Use AWS CloudWatch metrics and alerts along with resource tagging to deploy and manage your infrastructure. 

C. Use AWS Beanstalk and a version control system like GIT to deploy and manage your infrastructure. 

D. Use AWS CloudFormation and a version control system like GIT to deploy and manage your infrastructure. 

Answer:

Explanation: Reference: 

http://aws.amazon.com/opsworks/faqs/ 


Q113. - (Topic 3) 

A user is using the AWS SQS to decouple the services. Which of the below mentioned operations is not 

supported by SQS? 

A. SendMessageBatch 

B. DeleteMessageBatch 

C. CreateQueue 

D. DeleteMessageQueue 

Answer:

Explanation: 

Amazon Simple Queue Service (SQS. is a fast, reliable, scalable, and fully managed message queuing service. SQS provides a simple and cost-effective way to decouple the components of an application. The user can perform the following set of operations using the Amazon SQS: 

CreateQueue, ListQueues, DeleteQueue, SendMessage, SendMessageBatch, 

ReceiveMessage, DeleteMessage, DeleteMessageBatch, ChangeMessageVisibility, 

ChangeMessageVisibilityBatch, SetQueueAttributes, GetQueueAttributes, GetQueueUrl, 

AddPermission and RemovePermission. Operations can be performed only by the AWS account owner or an AWS account that the account owner has delegated to. 


Q114. - (Topic 3) 

When you put objects in Amazon S3, what is the indication that an object was successfully stored? 

A. Each S3 account has a special bucket named_s3_logs. Success codes are written to this bucket with a timestamp and checksum. 

B. A success code is inserted into the S3 object metadata. 

C. A HTTP 200 result code and MD5 checksum, taken together, indicate that the operation was successful. 

D. Amazon S3 is engineered for 99.999999999% durability. Therefore there is no need to confirm that data was inserted. 

Answer:

Explanation: Reference: 

http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUT.html 


Q115. - (Topic 2) 

An organization is planning to use AWS for 5 different departments. The finance department is responsible to pay for all the accounts. However, they want the cost separation for each account to map with the right cost centre. How can the finance department achieve this? 

A. Create 5 separate accounts and make them a part of one consolidate billing 

B. Create 5 separate accounts and use the IAM cross account access with the roles for better management 

C. Create 5 separate IAM users and set a different policy for their access 

D. Create 5 separate IAM groups and add users as per the department’s employees 

Answer:

Explanation: 

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. Consolidated billing enables the organization to see a combined view of the AWS charges incurred by each account as well as obtain a detailed cost report for each of the individual AWS accounts associated with the paying account. 


Q116. - (Topic 3) 

A user has launched an RDS MySQL DB with the Multi AZ feature. The user has scheduled the scaling of 

instance storage during maintenance window. What is the correct order of events during maintenance window? 

Perform maintenance on standby 

Promote standby to primary 

Perform maintenance on original primary 

Promote original master back as primary 

A. 1, 2, 3, 4 

B. 1, 2, 3 

C. 2, 3, 1, 4 

Answer:

Explanation: 

Running MySQL on the RDS DB instance as a Multi-AZ deployment can help the user reduce the impact of a maintenance event, as the Amazon will conduct maintenance by following the steps in the below mentioned order: Perform maintenance on standby Promote standby to primary Perform maintenance on original primary, which becomes the new standby. 


Q117. - (Topic 2) 

An organization has configured the custom metric upload with CloudWatch. The organization has given permission to its employees to upload data using CLI as well SDK. How can the user track the calls made to CloudWatch? 

A. The user can enable logging with CloudWatch which logs all the activities 

B. Use CloudTrail to monitor the API calls 

C. Create an IAM user and allow each user to log the data using the S3 bucket 

D. Enable detailed monitoring with CloudWatch 

Answer:

Explanation: 

AWS CloudTrail is a web service which will allow the user to monitor the calls made to the Amazon CloudWatch API for the organization’s account, including calls made by the AWS Management Console, Command Line Interface (CLI., and other services. When CloudTrail logging is turned on, CloudWatch will write log files into the Amazon S3 bucket, which is specified during the CloudTrail configuration. 


Q118. - (Topic 3) 

A user is collecting 1000 records per second. The user wants to send the data to CloudWatch using the custom namespace. Which of the below mentioned options is recommended for this activity? 

A. Aggregate the data with statistics, such as Min, max, Average, Sum and Sample data and send the data to CloudWatch 

B. Send all the data values to CloudWatch in a single command by separating them with a comma. CloudWatch will parse automatically 

C. Create one csv file of all the data and send a single file to CloudWatch 

D. It is not possible to send all the data in one call. Thus, it should be sent one by one. CloudWatch will aggregate the data automatically 

Answer:

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 can publish data to CloudWatch as single data points or as an aggregated set of data points called a statistic set using the command put-metric-data. It is recommended that when the user is having multiple data points per minute, he should aggregate the data so that it will minimize the number of calls to put-metric-data. In this case it will be single call to CloudWatch instead of 1000 calls if the data is aggregated. 


Q119. - (Topic 3) 

An application you maintain consists of multiple EC2 instances in a default tenancy VPC. This application has undergone an internal audit and has been determined to require dedicated hardware for one instance. Your compliance team has given you a week to move this instance to single-tenant hardware. 

Which process will have minimal impact on your application while complying with this requirement? 

A. Create a new VPC with tenancy=dedicated and migrate to the new VPC 

B. Use ec2-reboot-instances command line and set the parameter "dedicated=true" 

C. Right click on the instance, select properties and check the box for dedicated tenancy 

D. Stop the instance, create an AMI, launch a new instance with tenancy=dedicated, and terminate the old instance 

Answer:

Explanation: Reference: 

http://docs.aws.amazon.com/AWSEC2/latest/CommandLineReference/ApiReference-cmd-CreateVpc.html 


Q120. - (Topic 3) 

The CFO of a company wants to allow one of his employees to view only the AWS usage report page. Which of the below mentioned IAM policy statements allows the user to have access to the AWS usage report page? 

A. "Effect": "Allow", "Action": [“Describe”], "Resource": "Billing" 

B. "Effect": "Allow", "Action": ["AccountUsage], "Resource": "*" 

C. "Effect": "Allow", "Action": ["aws-portal:ViewUsage"], "Resource": "*" 

D. "Effect": "Allow", "Action": ["aws-portal: ViewBilling"], "Resource": "*" 

Answer:

Explanation: 

AWS Identity and Access Management is a web service which allows organizations to manage users and user permissions for various AWS services. If the CFO wants to allow only AWS usage report page access, the policy for that IAM user will be as given below: 

"Version": "2012-10-17", 

"Statement": [ 

"Effect": "Allow", 

"Action": [ 

"aws-portal:ViewUsage" 

], 

"Resource": "*"