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August 9, 2017

Beginners Guide: aws sysops exam dumps

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Q181. - (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 



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. 

Q182. - (Topic 2) 

A user has created a VPC with CIDR The user has created a public subnet with CIDR The user is trying to create the private subnet with CIDR Which of the below mentioned statements is true in this scenario? 

A. It will not allow the user to create the private subnet due to a CIDR overlap 

B. It will allow the user to create a private subnet with CIDR as 

C. This statement is wrong as AWS does not allow CIDR 

D. It will not allow the user to create a private subnet due to a wrong CIDR range 



When the user creates a subnet in VPC, he specifies the CIDR block for the subnet. The CIDR block of a subnet can be the same as the CIDR block for the VPC (for a single subnet in the VPC., or a subset (to enable multiple subnets.. If the user creates more than one subnet in a VPC, the CIDR blocks of the subnets must not overlap. Thus, in this case the user has created a VPC with the CIDR block, which supports 256 IP addresses ( to The user can break this CIDR block into two subnets, each supporting 128 IP addresses. One subnet uses the CIDR block (for addresses - and the other uses the CIDR block (for addresses - 

Q183. - (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. 


Q184. - (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 



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 

Q185. - (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 



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. 

Q186. - (Topic 3) 

A user has provisioned 2000 IOPS to the EBS volume. The application hosted on that EBS is experiencing less IOPS than provisioned. Which of the below mentioned options does not affect the IOPS of the volume? 

A. The application does not have enough IO for the volume 

B. The instance is EBS optimized 

C. The EC2 instance has 10 Gigabit Network connectivity 

D. The volume size is too large 



When the application does not experience the expected IOPS or throughput of the PIOPS EBS volume that was provisioned, the possible root cause could be that the EC2 bandwidth is the limiting factor and the instance might not be either EBS-optimized or might not have 10 Gigabit network connectivity. Another possible cause for not experiencing the expected IOPS could also be that the user is not driving enough I/O to the EBS volumes. The size of the volume may not affect IOPS. 

Q187. - (Topic 1) 

You are designing a system that has a Bastion host. This component needs to be highly available without human intervention. 

Which of the following approaches would you select? 

A. Run the bastion on two instances one in each AZ 

B. Run the bastion on an active Instance in one AZ and have an AMI ready to boot up in the event of failure 

C. Configure the bastion instance in an Auto Scaling group Specify the Auto Scaling group to include multiple AZs but have a min-size of 1 and max-size of 1 

D. Configure an ELB in front of the bastion instance 


Q188. - (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 



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. 

Q189. - (Topic 2) 

A user has launched 10 instances from the same AMI ID using Auto Scaling. The user is trying to see the 

average CPU utilization across all instances of the last 2 weeks under the CloudWatch console. How can the user achieve this? 

A. View the Auto Scaling CPU metrics 

B. Aggregate the data over the instance AMI ID 

C. The user has to use the CloudWatchanalyser to find the average data across instances 

D. It is not possible to see the average CPU utilization of the same AMI ID since the instance ID is different 



Amazon CloudWatch is basically a metrics repository. Either the user can send the custom data or an AWS product can put metrics into the repository, and the user can retrieve the statistics based on those metrics. The statistics are metric data aggregations over specified periods of time. Aggregations are made using the namespace, metric name, dimensions, and the data point unit of measure, within the time period that is specified by the user. To aggregate the data across instances launched with AMI, the user should select the AMI ID under EC2 metrics and select the aggregate average to view the data. 

Q190. - (Topic 3) 

A user is trying to send custom metrics to CloudWatch using the PutMetricData APIs. Which of the below 

mentioned points should the user needs to take care while sending the data to CloudWatch? 

A. The size of a request is limited to 8KB for HTTP GET requests and 40KB for HTTP POST requests 

B. The size of a request is limited to 128KB for HTTP GET requests and 64KB for HTTP POST requests 

C. The size of a request is limited to 40KB for HTTP GET requests and 8KB for HTTP POST requests 

D. The size of a request is limited to 16KB for HTTP GET requests and 80KB for HTTP POST requests 



With AWS CloudWatch, the user can publish data points for a metric that share not only the same time stamp, but also the same namespace and dimensions. CloudWatch can accept multiple data points in the same PutMetricData call with the same time stamp. The only thing that the user needs to take care of is that the size of a PutMetricData request is limited to 8KB for HTTP GET requests and 40KB for HTTP POST requests. 

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