AWS Certified SysOps Administrator – Associate Set4 Welcome to AWS Certified SysOps Administrator - Associate Set4. 1. Which feature of Systems Manager can you use to run a script on multiple EC2 instances simultaneously and without logging in to each one? Parameter Store Run Command Config2. You have a web application that uses AutoScaling and Elastic Load Balancing. You want to monitor the application to make sure that it maintains a "good" customer experience, defined in terms of the amount of time it takes to load the application for the end-user in their browser. Which AWS CloudWatch metric can best be used for this? Latency reported by the elastic load balancer (ELB). Aggregate CPUUtilization for the web tier. Aggregate NetworkIn for the web tier.3. Which of the following ELB error codes indicates a successful request? 500 300 2004. Which of the following ELB error codes indicates a server-side issue? 300 500 4005. You are a SysOps Administrator for an events company that is launching a new TV show tomorrow. You are expecting that traffic to your website tomorrow will be huge. You have created an autoscaling group and have a combination of Reserved and On-demand instances ready. You are about to contact AWS support to ask them to prewarm your ELB in order to meet this demand. Typically, AWS requires 3 pieces of information. Which of the following is NOT information that AWS requires? The start and end dates of your expected surge in traffic. The traffic type (HTTP or HTTPS). The expected request rate per second.6. You are supporting a data processing application which runs on an EC2 instance, using gp2 storage and currently performs around 10,000 reads / writes per second. Your Sales and Marketing Teams are planning to introduce a number of additional reports which are expected to at least double the current workload for your application. How can you ensure that the performance of your application does not suffer when the new reports are introduced? Increase the storage capacity of your gp2 volume Change the storage class to Provisioned IOPS Migrate all your data to DynamoDB7. You are running your production database in MySQL on an independent EBS volume and you are fast approaching an average IOPS of 9,000. You have decided to migrate your database to an EBS volume with provisioned IOPS. Your key users only use the database between 9 am - 6 pm, so you can afford to have some down time out of hours, but not during the working day. Which is the best option below to achieve this migration. Choose a suitable time window for your downtime. Stop the MySQL service. Move the database to S3. Restart the MySQL service, but set the configuration so that it addresses your new bucket S3://mydatabasebucket. Update the EBS volume where the MySQL database is running to change it's volume type from gp2 to io1. The changes will take place behind the scenes, and requires no further intervention from an administrator Choose a suitable time window for your downtime. Stop the MySQL service. Take a snapshot of the EBS volume where the MySQL database is running. Detach and then delete the old database volume. Restore the snapshot to a new volume running on provisioned IOPS.8. You are deploying a latency sensitive application using EC2 instances. You would like to ensure that all instances are placed in the same AZ for maximum throughput between the components of your application. Which of the following approaches do you recommend? Use a cluster placement group to place all instances in the same AZ. Launch all the instances at the same time and place each one in the same AZ. Launch each instance separately and place each one in the same AZ.9. Which of the following ELB error codes indicates a client-side issue? 200 400 50010. You are a SysOps Administrator at a fast-growing startup that has scripted most of their infrastructure. You have a fleet of EC2 instances behind an elastic load balancer. When a new instance is launched, it performs a number of system updates before automatically copying the website's code from an S3 bucket. Due to the number of steps taken when launching a new instance, it can sometimes take up to 5 minutes for the new instance to be a fully functioning web server. This length of time is now causing a problem, as the Elastic Load Balancer reports the new instance to be unhealthy, and your autoscaling group then deletes it before it can become live. What should you do to prevent this from happening again? Reduce the number of automated steps so that the instance provisions faster and becomes healthy faster. Adjust the health check on your elastic load balancer so that an instance is considered healthy within 10 seconds of it serving HTTP traffic. Get rid of autoscaling and simply add new instances manually when you need them.11. Which of the following statements does NOT describe a Bastion host? It allows you to safely administer EC2 instances without exposing them to the internet It allows EC2 instances to download security patches from whitelisted endpoints It is used for incoming SSH and RDP only12. You are planning to deploy a production database to EC2 and need to choose the best storage type. You anticipate that you will need a maximum of 20,000 IOPS during peak times, but an average of 8,000 - 10,000 IOPS. What storage medium should you choose? Magnetic Storage S3 Provisioned IOPS13. You have a fleet of EC2 instances in a private subnet and you need to securely access these via SSH. What should you implement? A new route to your private subnet to make the subnet public A Bastion Host/Jump Box An internet gateway14. You would like to receive an alert if more than 3 of your application servers fail to respond to a basic health check by the Elastic Load Balancer. Which metric could you use to configure this? UnHealthyInstanceCount UnHealthyHostCount FailedHostCount15. What does the term PIOPS stand for when dealing with EBS? Phemeral Input Output Per Second Provisioned Input Output Per Second Permanent Input Output Per Second16. Your web application runs on a group EC2 instances behind a Classic Load Balancer. This morning, users are complaining that the application is running very slowly. You suspect this is due to a significant increase in traffic to your application. Which CloudWatch metrics could you use, to determine if you are correct? (Choose 2) SurgeQueueLength SpilloverCount SurgeQueueCount RequestCount17. Your new question!18. By default, how frequently are ELB metrics published to CloudWatch? Every 3 minutes Every 5 minutes Every 60 seconds19. Which service does Systems Manager integrate with to give you visibility of the overall health of your AWS infrastructure? CloudWatch Trusted Advisor CloudTrail20. You are running an application on a load-balanced group of 10 EC2 instances. Which of the following metrics would use to check how many of your application servers are available? RegisteredHosts HealthyInstanceCount HealthyHostCount21. You are about to initiate a load test on your website to ensure it can keep up with seasonal demands. Your website is behind an elastic load balancer and will receive a burst of traffic totalling of millions of requests. What should you do to prepare for this? Contact Amazon and warn them of the test. Ask them to pre-warm the elastic load balancer. Use CloudFront and ElastiCache to help reduce the load. Contact Amazon and ask them to build an additional data center.22. You are a SysOps engineer at a startup that is growing quite quickly. The startup has a fleet of EC2 instances inside an autoscaling group that scales based on CPU Utilization. You notice that CPU Utilization is not a good metric, and that the main bottleneck is the maxed-out number of connections between the ELB and an EC2 instance. You want to adjust your Autoscaling configuration to address this bottleneck. Which two of the following ELB metrics should you consider? SurgeQueueLength & SpilloverCount Latency & RequestCount RequestCount & SpilloverCount23. What is the maximum IOPS capability of a gp2 volume? 32,000 16,000 10,00024. What is the maximum IOPS capability of an io1 volume? 32,000 64,000 10,00025. Which of the following management tools gives you visibility and operational control over your AWS infrastructure? Systems Manager AWS Config CloudFormation26. You are attempting to launch a number of on-demand EC2 instances, but the launch operation fails with an InsufficientInstanceCapacity error. What does this error mean? AWS does not currently have enough on-demand capacity available to complete your request You have exceeded the default limit for the number of instances you are allowed to launch in a single region You have selected an instance type which does not have sufficient capacity to run the operating system27. You need to configure a load balancer with a static IP address, which of the following would you recommend? Application Load Balancer Classic Load Balancer Network Load Balancer28. You are attempting to launch a number of on-demand EC2 instances, but the launch operation fails with the InstanceLimitExceeded error. What does this error mean? You have selected an instance type which does not have sufficient capacity to run the operating system You have exceeded the default limit for the number of instances you are allowed to launch in a single region. Contact AWS support to have your limit increased. There is a region-wide problem with EC2. Check the Personal Health Dashboard to see the status of the issue.29. Which of the following is most suitable for load balancing requests to latency sensitive production applications? Classic Load Balancer Network Load Balancer EC2 Load Balancer30. Which of the following is most suitable for load balancing based on the content of HTTP / HTTPS request headers? EC2 Load Balancer Application Load Balancer Classic Load Balancer31 out of 3Please fill in the comment box below. Email
