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1. You launched an EC2 instance to host a NodeJS application. After installing all the necessary software and configuring the application, you recorded the public IPv4 address of the EC2 instance for access. Then, you stopped the instance and restarted it to complete the application setup. However, after restarting, you were unable to access the EC2 instance and noticed that its public IPv4 addr..
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1. Placement Groupsโถ Sometimes you want to control over the EC2 Instance placement strategyโถ That strategy can be defined using placement groupsโถ When you create a placement group, you specify one of the following strategies for the group: - Cluster: clusters instances into a low-latency group in a single Availability Zone - Spread: spreads instances across underlying hardware (max 7 instances..
