Amazon AWS-SysOps ExamAWS Certified SysOps Administrator Associate

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Q11. - (Topic 2) 

A user has developed an application which is required to send the data to a NoSQL database. The user wants to decouple the data sending such that the application keeps processing and sending data but does not wait for an acknowledgement of DB. Which of the below mentioned applications helps in this scenario? 

A. AWS Simple Notification Service 

B. AWS Simple Workflow 

C. AWS Simple Queue Service 

D. AWS Simple Query Service 

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. In this case, the user can use AWS SQS to send messages which are received from an application and sent to DB. The application can continue processing data without waiting for any acknowledgement from DB. The user can use SQS to transmit any volume of data without losing messages or requiring other services to always be available. 


Q12. - (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. 


Q13. - (Topic 3) 

You have a proprietary data store on-premises that must be backed up daily by dumping the data store contents to a single compressed 50GB file and sending the file to AWS. Your SLAs state that any dump file backed up within the past 7 days can be retrieved within 2 hours. Your compliance department has stated that all data must be held indefinitely. The time required to restore the data store from a backup is approximately 1 hour. Your on-premise network connection is capable of sustaining 1gbps to AWS. 

Which backup methods to AWS would be most cost-effective while still meeting all of your requirements? 

A. Send the daily backup files to Glacier immediately after being generated 

B. Transfer the daily backup files to an EBS volume in AWS and take daily snapshots of the volume 

C. Transfer the daily backup files to S3 and use appropriate bucket lifecycle policies to send to Glacier 

D. Host the backup files on a Storage Gateway with Gateway-Cached Volumes and take daily snapshots 

Answer:

Explanation: Reference: 

http://aws.amazon.com/storagegateway/faqs/ 


Q14. - (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. 


Q15. - (Topic 3) 

When an EC2 instance mat is backed by an S3-Dased AMI is terminated, what happens to the data on the root volume? 

A. Data is automatically deleted 

B. Data is automatically saved as an EBS snapshot. 

C. Data is unavailable until the instance is restarted 

D. Data is automatically saved as an EBS volume. 

Answer:


Q16. - (Topic 3) 

A user has setup an EBS backed instance and attached 2 EBS volumes to it. The user has setup a CloudWatch alarm on each volume for the disk data. The user has stopped the EC2 instance and detached the EBS volumes. What will be the status of the alarms on the EBS volume? 

A. OK 

B. Insufficient Data 

C. Alarm 

D. The EBS cannot be detached until all the alarms are removed 

Answer:

Explanation: 

Amazon CloudWatch alarm watches a single metric over a time period that the user specifies and performs one or more actions based on the value of the metric relative to a given threshold over a number of time periods. Alarms invoke actions only for sustained state changes. There are three states of the alarm: OK, Alarm and Insufficient data. In this case since the EBS is detached and inactive the state will be Insufficient. 


Q17. - (Topic 3) 

A user has launched 5 instances in EC2-CLASSIC and attached 5 elastic IPs to the five different instances in the US East region. The user is creating a VPC in the same region. The user wants to assign an elastic IP to the VPC instance. How can the user achieve this? 

A. The user has to request AWS to increase the number of elastic IPs associated with the account 

B. AWS allows 10 EC2 Classic IPs per region; so it will allow to allocate new Elastic IPs to the same region 

C. The AWS will not allow to create a new elastic IP in VPC; it will throw an error 

D. The user can allocate a new IP address in VPC as it has a different limit than EC2 

Answer:

Explanation: Section: (none) 

A Virtual Private Cloud (VPC. is a virtual network dedicated to the user’s AWS account. A user can create a subnet with VPC and launch instances inside that subnet. A user can have 5 IP addresses per region with EC2 Classic. The user can have 5 separate IPs with VPC in the same region as it has a separate limit than EC2 Classic. 


Q18. - (Topic 3) 

A user has configured ELB with SSL using a security policy for secure negotiation between the client and load balancer. Which of the below mentioned SSL protocols is not supported by the security policy? 

A. TLS 1.3 

B. TLS 1.2 

C. SSL 2.0 

D. SSL 3.0 

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. Elastic Load Balancing supports the following versions of the SSL protocol: TLS 1.2 TLS 1.1 TLS 1.0 SSL 3.0 SSL 2.0 


Q19. - (Topic 3) 

A user has a weighing plant. The user measures the weight of some goods every 5 minutes and sends data to AWS CloudWatch for monitoring and tracking. Which of the below mentioned parameters is mandatory for the user to include in the request list? 

A. Value 

B. Namespace 

C. Metric Name 

D. Timezone 

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 the data to CloudWatch as single data points or as an aggregated set of data points called a statistic set. The user has to always include the namespace as part of the request. The user can supply a file instead of the metric name. If the user does not supply the timezone, it accepts the current time. If the user is sending the data as a single data point it will have parameters, such as value. However, if the user is sending as an aggregate it will have parameters, such as statistic-values. 


Q20. - (Topic 3) 

A user has configured an ELB to distribute the traffic among multiple instances. The user instances are facing some issues due to the back-end servers. Which of the below mentioned CloudWatch metrics helps the user understand the issue with the instances? 

A. HTTPCode_Backend_3XX 

B. HTTPCode_Backend_4XX 

C. HTTPCode_Backend_2XX 

D. HTTPCode_Backend_5XX 

Answer:

Explanation: 

CloudWatch is used to monitor AWS as well as the custom services. For ELB, CloudWatch provides various metrics including error code by ELB as well as by back-end servers (instances.. It gives data for the count of the number of HTTP response codes generated by the back-end instances. This metric does not include any response codes generated by the load balancer. These metrics are: The 2XX class status codes represents successful actions The 3XX class status code indicates that the user agent requires action The 4XX class status code represents client errors 

The 5XX class status code represents back-end server errors 


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