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October 11, 2017

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Q41. - (Topic 3) 

A user had aggregated the CloudWatch metric data on the AMI ID. The user observed some abnormal 

behaviour of the CPU utilization metric while viewing the last 2 weeks of data. The user wants to share that data with his manager. How can the user achieve this easily with the AWS console? 

A. The user can use the copy URL functionality of CloudWatch to share the exact details 

B. The user can use the export data option from the CloudWatch console to export the current data point 

C. The user has to find the period and data and provide all the aggregation information to the manager 

D. The user can use the CloudWatch data copy functionality to copy the current data points 

Answer:

Explanation: 

Amazon CloudWatch provides the functionality to graph the metric data generated either by the AWS services or the custom metric to make it easier for the user to analyse. The console provides the option to save the URL or bookmark it so that it can be used in the future by typing the same URL. The Copy URL functionality is available under the console when the user selects any metric to view. 


Q42. - (Topic 3) 

A user has setup an Auto Scaling group. The group has failed to launch a single instance for more than 24 hours. What will happen to Auto Scaling in this condition? 

A. Auto Scaling will keep trying to launch the instance for 72 hours 

B. Auto Scaling will suspend the scaling process 

C. Auto Scaling will start an instance in a separate region 

D. The Auto Scaling group will be terminated automatically 

Answer:

Explanation: 

If Auto Scaling is trying to launch an instance and if the launching of the instance fails continuously, it will suspend the processes for the Auto Scaling groups since it repeatedly failed to launch an instance. This is known as an administrative suspension. It commonly applies to the Auto Scaling group that has no running instances which is trying to launch instances for more than 24 hours, and has not succeeded in that to do so. 


Q43. - (Topic 1) 

What are characteristics of Amazon S3? Choose 2 answers 

A. Objects are directly accessible via a URL 

B. S3 should be used to host a relational database 

C. S3 allows you to store objects or virtually unlimited size 

D. S3 allows you to store virtually unlimited amounts of data 

E. S3 offers Provisioned IOPS 

Answer: A,D 


Q44. - (Topic 3) 

A user has enabled versioning on an S3 bucket. The user is using server side encryption for data at rest. If the user is supplying his own keys for encryption (SSE-C., what is recommended to the user for the purpose of security? 

A. The user should not use his own security key as it is not secure 

B. Configure S3 to rotate the user’s encryption key at regular intervals 

C. Configure S3 to store the user’s keys securely with SSL 

D. Keep rotating the encryption key manually at the client side 

Answer:

Explanation: 

AWS S3 supports client side or server side encryption to encrypt all data at Rest. The server side encryption can either have the S3 supplied AES-256 encryption key or the user can send the key along with each API call to supply his own encryption key (SSE-C.. Since S3 does not store the encryption keys in SSE-C, it is recommended that the user should manage keys securely and keep rotating them regularly at the client side version. 


Q45. - (Topic 2) 

An admin is planning to monitor the ELB. Which of the below mentioned services does not help the admin capture the monitoring information about the ELB activity? 

A. ELB Access logs 

B. ELB health check 

C. CloudWatch metrics 

D. ELB API calls with CloudTrail 

Answer:

Explanation: 

The admin can capture information about Elastic Load Balancer using either: CloudWatch Metrics ELB Logs files which are stored in the S3 bucket CloudTrail with API calls which can notify the user as well generate logs for each API calls The health check is internally performed by ELB and does not help the admin get the ELB activity. 


Q46. - (Topic 2) 

A user has enabled detailed CloudWatch metric monitoring on an Auto Scaling group. Which of the below 

mentioned metrics will help the user identify the total number of instances in an Auto Scaling group cluding pending, terminating and running instances? 

A. GroupTotalInstances 

B. GroupSumInstances 

C. It is not possible to get a count of all the three metrics together. The user has to find the individual number of running, terminating and pending instances and sum it 

D. GroupInstancesCount 

Answer:

Explanation: 

CloudWatch is used to monitor AWS as well as the custom services. For Auto Scaling, CloudWatch provides various metrics to get the group information, such as the Number of Pending, Running or Terminating instances at any moment. If the user wants to get the total number of Running, Pending and Terminating instances at any moment, he can use the GroupTotalInstances metric. 


Q47. - (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. 


Q48. - (Topic 3) 

A storage admin wants to encrypt all the objects stored in S3 using server side encryption. The user does not want to use the AES 256 encryption key provided by S3. How can the user achieve this? 

A. The admin should upload his secret key to the AWS console and let S3 decrypt the objects 

B. The admin should use CLI or API to upload the encryption key to the S3 bucket. When making a call to the S3 API mention the encryption key URL in each request 

C. S3 does not support client supplied encryption keys for server side encryption 

D. The admin should send the keys and encryption algorithm with each API call 

Answer:

Explanation: 

AWS S3 supports client side or server side encryption to encrypt all data at rest. The server side encryption can either have the S3 supplied AES-256 encryption key or the user can send the key along with each API callto supply his own encryption key. Amazon S3 never stores the user’s encryption key. The user has to supply it for each encryption or decryption call. 


Q49. - (Topic 3) 

A user has configured ELB with SSL using a security policy for secure negotiation between the client and load balancer. The ELB security policy supports various ciphers. Which of the below mentioned options helps identify the matching cipher at the client side to the ELB cipher list when client is requesting ELB DNS over SSL? 

A. Cipher Protocol 

B. Client Configuration Preference 

C. Server Order Preference 

D. Load Balancer Preference 

Answer:

Explanation: 

Elastic Load Balancing uses a Secure Socket Layer (SSL. negotiation configuration which is known as a Security Policy. It is used to negotiate the SSL connections between a client and the load balancer. When client is requesting ELB DNS over SSL and if the load balancer is configured to support the Server Order Preference, then the load balancer gets to select the first cipher in its list that matches any one of the ciphers in the client's list. Server Order Preference ensures that the load balancer determines which cipher is used for the SSL connection. 


Q50. - (Topic 3) 

The compliance department within your multi-national organization requires that all data for your customers that reside in the European Union (EU) must not leave the EU and also 

data for customers that reside in the US must not leave the US without explicit authorization. 

What must you do to comply with this requirement for a web based profile management application running on EC2? 

A. Run EC2 instances in multiple AWS Availability Zones in single Region and leverage an Elastic Load Balancer with session stickiness to route traffic to the appropriate zone to create their profile 

B. Run EC2 instances in multiple Regions and leverage Route 53's Latency Based Routing capabilities to route traffic to the appropriate region to create their profile 

C. Run EC2 instances in multiple Regions and leverage a third party data provider to determine if a user needs to be redirect to the appropriate region to create their profile 

D. Run EC2 instances in multiple AWS Availability Zones in a single Region and leverage a third party data provider to determine if a user needs to be redirect to the appropriate zone to create their profile 

Answer:



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