Amazon Web Services SOA-C02 Exam With Confidence Using Practice Dumps

"Network Load Balancer is optimized to handle sudden and volatile traffic patterns while using a single static IP address per Availability Zone."

For an application that must scale to millions of requests per second and requires a single static IP address for each Availability Zone, a Network Load Balancer (NLB) is the most suitable option. NLBs are designed for high-performance, low-latency networking, and they support static IP addresses for each Availability Zone, making it ideal for volatile traffic patterns. Option D is the correct choice. AWS provides extensive documentation on NLB capabilities and configurations that suit these requirements AWS Network Load Balancer.

Enabling Instance Scale-In Protection:

Instance scale-in protection prevents Auto Scaling from terminating specific instances.

Steps:

Go to the AWS Management Console.

Navigate to EC2 and select "Auto Scaling Groups."

Select your Auto Scaling group.

Go to the "Instance management" tab.

Select the instances you want to protect and click "Actions."

Choose "Enable scale-in protection."

This ensures that instances are not terminated during troubleshooting.

Instance Scale-In Protection

Amazon CloudWatch Logs Insights allows you to interactively search and analyze your log data. This can be used to quickly identify the top internet destinations accessed by the EC2 instances.

Steps:

Open CloudWatch Logs Insights:

Open the Amazon CloudWatch console.

In the navigation pane, choose "Logs Insights".

Select the Log Group:

Select the log group that contains the VPC flow logs for the NAT gateway.

Run a Query:

Use the following query to identify the top five internet destinations:

sql

Copy code

fields @timestamp, dstAddr

| stats count(*) as requestCount by dstAddr

| sort requestCount desc

| limit 5

This query will count the number of requests to each destination address, sort them in descending order, and limit the results to the top five.

Analyze Results:

Review the output to identify the top five internet destinations that the EC2 instances communicate with for downloads.