Question 1:

Scaling an EC2 instance from r4.large to r4.4xlarge is called ______________.

🔘 Horizontal Scalability

✅ Vertical Scalability

Question 2:

Running an application on an Auto Scaling Group that scales the number of EC2 instances in and out is called ______________.

✅ Horizontal Scalability

🔘 Vertical Scalability

Question 3:

Elastic Load Balancers provide a ______________.

🔘 Static IPv4 we can use in our application

✅ Static DNS name we can use in our application

🔘 Static IPv6 we can use in our application

💡 Only Network Load Balancer provides both a static DNS name and a static IP. Application Load Balancer provides a static DNS name but does NOT provide a static IP.

Question 4:

You are running a website on 10 EC2 instances fronted by an Elastic Load Balancer. Users complain that they are repeatedly asked to re-authenticate when navigating the website. It works fine in the Dev environment with one EC2 instance. What could be the reason?

🔘 Your website must have an issue when hosted on multiple EC2 instances