SOA-C02 VALID STUDY MATERIAL | SOA-C02 VALID DUMPS

SOA-C02 valid study material | SOA-C02 valid dumps

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Amazon AWS Certified SysOps Administrator - Associate (SOA-C02) Sample Questions (Q278-Q283):

NEW QUESTION # 278
A company has a workload that is sending log data to Amazon CloudWatch Logs. One of the fields includes a measure of application latency. A SysOps administrator needs to monitor the p90 statistic of this field over time.

  • A. Create an Amazon CloudWatch Application Insights rule for the workload.
  • B. Create an Amazon CloudWatch Contributor Insights rule on the log data.
  • C. Create a subscription filter on the log data.
  • D. Create a metric filter on the log data.

Answer: D

Explanation:
To monitor the p90 (90th percentile) statistic of a specific field in log data over time, the appropriate approach is to create a metric filter on the log data. Metric filters in Amazon CloudWatch Logs allow you to extract metric data from log events and transform them into CloudWatch metrics. These metrics can then be visualized and analyzed over time.
Starting from May 23, 2019, CloudWatch Logs introduced support for percentiles in metric filters. This enhancement enables users to specify percentile statistics, such as p90, p95, p99, etc., when defining metric filters. By doing so, you can gain insights into the distribution of your metric data, which is particularly useful for understanding outliers or unusual behaviors in metrics like application latency.
Once the metric filter is set up to extract the desired field (e.g., application latency) and compute the p90 statistic, you can visualize this metric in CloudWatch Dashboards or set up alarms based on threshold values.
Reference:
CloudWatch Logs adds support for percentiles in metric filters (AWS What's New, May 23, 2019)


NEW QUESTION # 279
A company decides to stop non-production Amazon EC2 instances during the EC2 instances. The company's IT manager must receive notification in near real time whenever an EC2 instance that has an environment type tag value of non-production is started during the night.
Which solution will meet this requirement with the MOST operational efficiency?

  • A. Configure an AWS Lambda function with an SMTP client library. Subscribe the Lambda function to the AWS Health Dashboard to receive notification whenever an EC2 instance is in the running state. Configure the Lambda function to use Amazon Pinpoint to send email notifications to the IT manager. Deploy a second Lambda function to throttle calls from the first Lambda function during the daytime.
  • B. Store the EC2 instance metadata, including the environment type, in an Amazon DynamoDB table. Deploy a custom application to an EC2 instance. Configure the custom application to poll the DynamoDB data every minute during the night and to query the Amazon EC2 API to determine the state of each instance. Additionally, configure the custom application to send an email notification to the IT manager for each non-production EC2 instance that is in the running state.
  • C. Deploy an AWS Lambda function that queries the Amazon EC2 API to determine the state of each EC2 instance. Use the EC2 instance scheduler to configure the Lambda function to run every minute during the night and to send an email notification to the IT manager for each non-production EC2 instance that is in the running state.
  • D. Create an Amazon EventBridge rule that includes the EC2 Instance State-change Notification event type. Filter the event to capture only the running state. Create an AWS Lambda function as a target of the rule. Configure the Lambda function to check the current time and the EC2 instances' tags to determine the environment type. Create an Amazon Simple Notification Service (Amazon SNS) topic as a target of the Lambda function for notifications. Subscribe the IT manager's email address to the SNS topic.

Answer: D

Explanation:
The requirement is to monitor and notify whenever a non-production EC2 instance is started during the night. Amazon EventBridge offers a robust solution by triggering workflows in response to events.
Setting up Amazon EventBridge: Create an EventBridge rule that listens for the "EC2 Instance State-change Notification" event. Configure the rule to trigger only when instances transition to the "running" state.
Lambda Function: Attach a Lambda function as the target of the EventBridge rule. This function will execute when an EC2 instance starts. Inside the Lambda function, implement logic to check the current time and confirm it is during the night hours. Additionally, the function will check the instance's tags to verify if it's labeled as "non-production".
Notification via Amazon SNS: If the conditions are met (non-production and nighttime), the Lambda function publishes a message to an Amazon SNS topic specifically set up for this alert. The IT manager is subscribed to this topic, enabling them to receive an email notification almost instantaneously when the event occurs.
This solution is operationally efficient as it leverages serverless components that are inherently scalable and cost-effective, providing real-time monitoring and notifications without the need for continuous polling or complex infrastructure.


NEW QUESTION # 280
A SysOps administrator uses AWS Systems Manager Session Manager to connect to instances After the SysOps administrator launches a new Amazon EC2 instance the EC2 instance does not appear in the Session Manager list of systems that are available for connection. The SysOps administrator verities that Systems Manager Agent is installed updated and running on the EC2 instance What is the reason for this issue?

  • A. The SysOps administrator does not have access to the key pair that is required for connection
  • B. The SysOps administrator has not attached a security group to the EC2 instance to allow SSH on port
    22.
  • C. The EC2 instance does not have an attached IAM role that allows Session Manager to connect to the EC2 instance.
  • D. The EC2 instance ID has not been entered into the Session Manager configuration

Answer: C

Explanation:
If an EC2 instance does not appear in the Systems Manager Session Manager list, it is likely because the instance does not have an attached IAM role that allows Session Manager to connect.
Attach IAM Role with Necessary Permissions:
Ensure the EC2 instance has an IAM role attached with the AmazonSSMManagedInstanceCore policy.
Steps to Attach IAM Role:
Open the EC2 console, select the instance, and choose "Actions" -> "Instance Settings" -> "Attach/Replace IAM Role." Select or create an IAM role with the necessary permissions for Session Manager.
Permissions for Session Manager:
The AmazonSSMManagedInstanceCore policy provides the required permissions for the Systems Manager agent to interact with the Systems Manager service.
Session Manager Prerequisites
Attach an IAM Role to an Instance


NEW QUESTION # 281
A company has a critical serverless application that uses multiple AWS Lambda functions. Each Lambda function generates 1 GB of log data daily in tts own Amazon CloudWatch Logs log group. The company's security team asks for a count of application errors, grouped by type, across all of the log groups.
What should a SysOps administrator do to meet this requirement?

  • A. Perform a CloudWatch Logs Insights query that uses the stats command and count function.
  • B. Perform an Amazon RDS query that uses the SELECT and GROUP BY keywords.
  • C. Perform an Amazon Athena query that uses the SELECT and GROUP BY keywords.
  • D. Perform a CloudWatch Logs search that uses the groupby keyword and count function.

Answer: A

Explanation:
To count application errors grouped by type across all CloudWatch Logs log groups, use CloudWatch Logs Insights.
Steps:
* Access CloudWatch Logs Insights:
* Open the CloudWatch console and navigate to Logs Insights.
Reference: Analyzing Log Data with CloudWatch Logs Insights
Perform the Query:
Use the following query to count errors grouped by type:
sql
Copy code
fields @timestamp, @message
| filter @message like /error/
| stats count(*) by @message
This query filters for log messages containing the word "error" and counts occurrences grouped by the message content.
Run the Query Across Log Groups:
Select the log groups for all Lambda functions and run the query.
Reference: CloudWatch Logs Insights Query Syntax
Analyze Results:
Analyze the query results to get a count of application errors grouped by type.
Reference: Using CloudWatch Logs Insights
This method provides an efficient way to analyze and count application errors across multiple log groups.


NEW QUESTION # 282
A company is running a website on Amazon EC2 instances that are in an Auto Scaling group. When the website traffic increases, additional instances take several minutes to become available because of a longrunning user data script that installs software. A SysOps administrator must decrease the time that is required for new instances to become available.
Which action should the SysOps administrator take to meet this requirement?

  • A. Reduce the scaling thresholds so that instances are added before traffic increases.
  • B. Use EC2 Image Builder to prepare an Amazon Machine Image (AMI) that has pre-installed software.
  • C. Update the Auto Scaling group to launch instances that have a storage optimized instance type.
  • D. Purchase Reserved Instances to cover 100% of the maximum capacity of the Auto Scaling group.

Answer: C


NEW QUESTION # 283
......

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