Amazon AWS-SysOps ExamAWS Certified SysOps Administrator Associate

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Q1. - (Topic 1) 

Which two AWS services provide out-of-the-box user configurable automatic backup-as-a-

service and backup rotation options? 

Choose 2 answers 

A. Amazon S3 

B. Amazon RDS 

C. Amazon EBS 

D. Amazon Red shift 

Answer: B,D 


Q2. - (Topic 1) 

You are tasked with setting up a cluster of EC2 Instances for a NoSQL database. The database requires random read IO disk performance up to a 100,000 IOPS at 4KB block side per node. 

Which of the following EC2 instances will perform the best for this workload? 

A. A High-Memory Quadruple Extra Large (m2.4xlarge) with EBS-Optimized set to true and a PIOPs EBS volume 

B. A Cluster Compute Eight Extra Large (cc2.8xlarge) using instance storage 

C. High I/O Quadruple Extra Large (hi1.4xlarge) using instance storage 

D. A Cluster GPU Quadruple Extra Large (cg1.4xlarge) using four separate 4000 PIOPS EBS volumes in a RAID 0 configuration 

Answer:

Explanation: Explanation: Reference: 

http://aws.amazon.com/ec2/instance-types/ 


Q3. - (Topic 2) 

A user has launched a large EBS backed EC2 instance in the US-East-1a region. The user wants to achieve Disaster Recovery (DR. for that instance by creating another small instance in Europe. How can the user achieve DR? 

A. Copy the running instance using the “Instance Copy” command to the EU region 

B. Create an AMI of the instance and copy the AMI to the EU region. Then launch the instance from the EU AMI 

C. Copy the instance from the US East region to the EU region 

D. Use the “Launch more like this” option to copy the instance from one region to another 

Answer:

Explanation: 

To launch an EC2 instance it is required to have an AMI in that region. If the AMI is not available in that region, then create a new AMI or use the copy command to copy the AMI from one region to the other region. 


Q4. - (Topic 1) 

An organization's security policy requires multiple copies of all critical data to be replicated across at least a primary and backup data center. The organization has decided to store some critical data on Amazon S3. 

Which option should you implement to ensure this requirement is met? 

A. Use the S3 copy API to replicate data between two S3 buckets in different regions 

B. You do not need to implement anything since S3 data is automatically replicated between regions C. Use the S3 copy API to replicate data between two S3 buckets in different facilities within an AWS Region 

D. You do not need to implement anything since S3 data is automatically replicated between multiple facilities within an AWS Region 

Answer:


Q5. - (Topic 2) 

A user has launched an EBS backed instance. The user started the instance at 9 AM in the morning. Between 9 AM to 10 AM, the user is testing some script. Thus, he stopped the instance twice and restarted it. In the same hour the user rebooted the instance once. For how many instance hours will AWS charge the user? 

A. 3 hours 

B. 4 hours 

C. 2 hours 

D. 1 hour 

Answer:

Explanation: 

A user can stop/start or reboot an EC2 instance using the AWS console, the Amazon EC2 CLI or the Amazon EC2 API. Rebooting an instance is equivalent to rebooting an operating system. When the instance is rebooted AWS will not charge the user for the extra hours. In case the user stops the instance, AWS does not charge the running cost but charges only the EBS storage cost. If the user starts and stops the instance multiple times in a single hour, AWS will charge the user for every start and stop. In this case, since the instance was rebooted twice, it will cost the user for 3 instance hours. 


Q6. - (Topic 1) 

Your application currently leverages AWS Auto Scaling to grow and shrink as load Increases/ decreases and has been performing well Your marketing team expects a steady ramp up in traffic to follow an upcoming campaign that will result in a 20x growth in traffic over 4 weeks Your forecast for the approximate number of Amazon EC2 instances necessary to meet the peak demand is 175. 

What should you do to avoid potential service disruptions during the ramp up in traffic? 

A. Ensure that you have pre-allocated 175 Elastic IP addresses so that each server will be able to obtain one as it launches 

B. Check the service limits in Trusted Advisor and adjust as necessary so the forecasted count remains within limits. 

C. Change your Auto Scaling configuration to set a desired capacity of 175 prior to the launch of the marketing campaign 

D. Pre-warm your Elastic Load Balancer to match the requests per second anticipated during peak demand prior to the marketing campaign 

Answer:


Q7. - (Topic 3) 

A user has configured Auto Scaling with 3 instances. The user had created a new AMI after updating one of the instances. If the user wants to terminate two specific instances to ensure that Auto Scaling launches an instances with the new launch configuration, which command should he run? 

A. as-delete-instance-in-auto-scaling-group <Instance ID> --no-decrement-desired-capacity 

B. as-terminate-instance-in-auto-scaling-group <Instance ID> --update-desired-capacity 

C. as-terminate-instance-in-auto-scaling-group <Instance ID> --decrement-desired-capacity 

D. as-terminate-instance-in-auto-scaling-group <Instance ID> --no-decrement-desired-capacity 

Answer:

Explanation: 

The Auto Scaling command as-terminate-instance-in-auto-scaling-group <Instance ID> will terminate the specific instance ID. The user is required to specify the parameter as –no-decrement-desired-capacity to ensure that it launches a new instance from the launch config after terminating the instance. If the user specifies the parameter --decrement-desired-capacity then Auto Scaling will terminate the instance and decrease the desired capacity by 1. 


Q8. - (Topic 3) 

A user has configured ELB with Auto Scaling. The user suspended the Auto Scaling AddToLoadBalancer 

(which adds instances to the load balancer. process for a while. What will happen to the instances launched during the suspension period? 

A. The instances will not be registered with ELB and the user has to manually register when the process is resumed 

B. The instances will be registered with ELB only once the process has resumed 

C. Auto Scaling will not launch the instance during this period due to process suspension 

D. It is not possible to suspend only the AddToLoadBalancer process 

Answer:

Explanation: 

Auto Scaling performs various processes, such as Launch, Terminate, add to Load Balancer etc. The user can also suspend the individual process. The AddToLoadBalancer process type adds instances to the load balancer when the instances are launched. If this process is suspended, Auto Scaling will launch the instances but will not add them to the load balancer. When the user resumes this process, Auto Scaling will resume adding new instances launched after resumption to the load balancer. However, it will not add running instances that were launched while the process was suspended; those instances must be added manually. 


Q9. - (Topic 1) 

When an EC2 instance that is backed by an S3-based AMI Is terminated, what happens to the data on me root volume? 

A. Data is automatically saved as an E8S volume. 

B. Data is automatically saved as an ESS snapshot. 

C. Data is automatically deleted. 

D. Data is unavailable until the instance is restarted. 

Answer:

Explanation: Reference: 

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ComponentsAMIs.html 


Q10. - (Topic 2) 

A user is running one instance for only 3 hours every day. The user wants to save some cost with the instance. Which of the below mentioned Reserved Instance categories is advised in this case? 

A. The user should not use RI; instead only go with the on-demand pricing 

B. The user should use the AWS high utilized RI 

C. The user should use the AWS medium utilized RI 

D. The user should use the AWS low utilized RI 

Answer:

Explanation: 

The AWS Reserved Instance provides the user with an option to save some money by paying a one-time fixed amount and then save on the hourly rate. It is advisable that if the user is having 30% or more usage of an instance per day, he should go for a RI. If the user is going to use an EC2 instance for more than 2200-2500 hours per year, RI will help the user save some cost. Here, the instance is not going to run for less than 1500 hours. Thus, it is advisable that the user should use the on-demand pricing. 


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