Here is a quiz for you that focuses on the area of monitoring and metrics within Amazon Web Services (AWS). This is content focused around the SysOps Associate training at CBT Nuggets.
AWS SysOps Associate - Monitoring and Metrics
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Your IT group maintains an application on AWS to provide development and test platforms for your developers. Currently, both environments consist of an m1.small EC2 instance. Your developers report to your group performance degradation as they increase network load in the test environment. How would you mitigate these performance issues in the test environment?
Upgrade the m1.small to a larger instance type
Add an additional ENI to the test instance
Use the EBS optimized option to offload EBS traffic
Configure Amazon Cloudwatch to provision more network bandwidth when network utilization exceeds 80%
Question 1 Explanation:
Note that the EBS optimized option is not available for this EC2 instance.
You run a stateless web application with the following components: Elastic Load Balancer (ELB), 3 Web/Application servers on EC2, and 1 MySQL RDS database with 5000 Provisioned IOPS. Average response time for users is increasing. Looking at CloudWatch, you observe 95% CPU usage on the Web/Application servers and 20% CPU usage on the database. The average number of database disk operations varies between 2000 and 2500. Which two options could improve response times? (Choose 2)
Choose a different EC2 instance type for the Web/Application servers with a more appropriate CPU/memory ratio
Use Auto Scaling to add additional Web/Application servers based on a CPU load threshold
Increase the number of open TCP connections allowed per web/application EC2 instance
Use Auto Scaling to add additional Web/Application servers based on a memory usage threshold
Question 2 Explanation:
Here the bottleneck is CPU on the EC2 web application hosts. You can address this by using different instance types targeted at the high CPU needs, or you can use Auto Scaling to add additional Web servers to respond to demand.
For which configuration methods is detailed CloudWatch monitoring a default when you create an Auto Scaling group? (Choose 2)
AWS Management Console
Question 3 Explanation:
If you create an Auto Scaling group using the CLI or an API, detailed CloudWatch monitoring is a default.
You need to aggregate your custom data before sending it to CloudWatch. What do you use for this purpose?
A single dimension
An S3 bucket
A statistics set
Question 4 Explanation:
You can aggregate your data before you publish to CloudWatch. When you have multiple data points per minute, aggregating data minimizes the number of calls to put-metric-data. For example, instead of calling put-metric-data multiple times for three data points that are within three seconds of each other, you can aggregate the data into a statistic set that you publish with one call, using the --statistic-values parameter.
Which of these is not an option for handling missing data points in a CloudWatch alarm?
missing (The alarm looks back farther in time to find additional data points)
notBreaching (Treated as a data point that is within the threshold)
breaching (Treated as a data point that is breaching the threshold)
fetch (The current alarm state is maintained)
Question 5 Explanation:
There is no fetch – this option is actually called ignore.
What is the duration of time a topic is considered active by CloudWatch’s integration with SNS?
Question 6 Explanation:
The metrics you configure with CloudWatch for your Amazon SNS topics are automatically collected and pushed to CloudWatch every five minutes. These metrics are gathered on all topics that meet the CloudWatch guidelines for being active. A topic is considered active by CloudWatch for up to six hours from the last activity (i.e., any API call) on the topic.
How can you zoom in on sections of graphs in CloudWatch when you are reviewing metrics in the Management Console?
Click and drag
Single-click each boundary
Question 7 Explanation:
You can zoom in graphs in CloudWatch by dragging on the graph area, and then releasing the drag.
What tool does AWS provide that allows you to monitor the activities of AWS involving your infrastructure?
Question 8 Explanation:
AWS CloudTrail is a service that enables governance, compliance, operational auditing, and risk auditing of your AWS account. With CloudTrail, you can log, continuously monitor, and retain account activity related to actions across your AWS infrastructure. CloudTrail provides event history of your AWS account activity, including actions taken through the AWS Management Console, AWS SDKs, command line tools, and other AWS services. This event history simplifies security analysis, resource change tracking, and troubleshooting.
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