MCQs on Launching and Managing EC2 Instances | AWS EC2 MCQs Questions

Unlock the secrets of Amazon EC2 with these AWS EC2 MCQ questions and answers. From instance types and launching your first instance to managing AMIs and connecting securely, this guide helps professionals enhance their cloud computing expertise. Perfect for those diving into AWS EC2 for scalable and flexible cloud solutions.

Chapter 2: Launching and Managing EC2 Instances

Instance Types and Their Use Cases

1. Which instance type is best suited for general-purpose applications?
   a) T2
   b) M5
   c) R6g
   d) P3
2. Which instance type is optimized for memory-intensive workloads?
   a) M5
   b) C5
   c) R6g
   d) T3
3. What does the “Spot Instance” pricing model in EC2 offer?
   a) Reserved capacity with no upfront payment
   b) Discounts for short-term, interruptible workloads
   c) Always-on, fixed-rate pricing
   d) Automatic scaling of resources
4. Which instance type is designed for machine learning workloads?
   a) G4
   b) P3
   c) T2
   d) M6i
5. What is a key use case for burstable performance instances like T3?
   a) Consistently high CPU workloads
   b) Periodic CPU usage spikes
   c) Large-scale database operations
   d) GPU-intensive tasks
6. Which storage type is recommended for high IOPS workloads?
   a) EBS General Purpose SSD
   b) EBS Provisioned IOPS SSD
   c) EBS Magnetic
   d) EBS Throughput Optimized HDD

Launching Your First Instance

7. What is the first step in launching an EC2 instance?
   a) Choose an AMI
   b) Select an instance type
   c) Configure networking
   d) Configure storage
8. What is the default storage type assigned to a new EC2 instance?
   a) Instance Store
   b) Elastic Block Store (EBS)
   c) S3 Bucket
   d) DynamoDB
9. What does the “key pair” in EC2 enable?
   a) Configuring security groups
   b) Secure login to instances
   c) Setting up IAM policies
   d) Assigning public IP addresses
10. During instance creation, which field specifies the virtual private cloud (VPC)?
    a) Subnet ID
    b) Security Group
    c) Network Configuration
    d) IAM Role
11. What is the default instance state immediately after launching?
    a) Running
    b) Stopped
    c) Pending
    d) Terminated
12. How can you assign a static public IP to an instance?
    a) Attach an Elastic IP
    b) Configure a NAT gateway
    c) Edit the security group
    d) Enable DNS resolution

Working with AMIs (Amazon Machine Images)

13. What does an AMI include?
    a) Only the operating system
    b) A pre-configured virtual server
    c) Instance metadata
    d) VPC configurations
14. Which AMI type is designed for custom configurations?
    a) AWS Marketplace AMI
    b) Public AMI
    c) Private AMI
    d) Shared AMI
15. How do you create a custom AMI?
    a) By taking a snapshot of the root volume
    b) By cloning an instance
    c) By exporting EBS to S3
    d) By configuring a new VPC
16. What is the purpose of the AMI ID?
    a) To identify the operating system version
    b) To uniquely identify an AMI for launching instances
    c) To track storage usage
    d) To manage security groups
17. How can you share a private AMI with another AWS account?
    a) Through IAM policies
    b) By copying it to a public AMI
    c) By modifying the AMI permissions
    d) By exporting it to S3
18. What happens when you deregister an AMI?
    a) It deletes all associated instances
    b) It removes the AMI from the registry
    c) It terminates all instances using it
    d) It invalidates related snapshots

Connecting to Instances (SSH/RDP)

19. What is the default username for SSH access to Amazon Linux instances?
    a) ec2-user
    b) admin
    c) root
    d) ubuntu
20. Which port is typically used for SSH access to an EC2 instance?
    a) 3389
    b) 22
    c) 8080
    d) 443
21. What is required to connect to an EC2 instance via SSH?
    a) Private key file (.pem)
    b) Elastic IP
    c) AMI ID
    d) Security Group ID
22. How do you connect to a Windows EC2 instance?
    a) Use the AWS CLI
    b) Use Remote Desktop Protocol (RDP)
    c) Use SSH with a key pair
    d) Use the AWS Console
23. What should you do if the private key file for SSH is lost?
    a) Reset the key pair
    b) Terminate the instance
    c) Create a new AMI
    d) Recreate the instance
24. What happens if port 22 is not allowed in the security group?
    a) SSH connections will fail
    b) The instance cannot connect to the internet
    c) Public IP assignment fails
    d) Instance storage becomes unavailable

Managing Instances: Start, Stop, Reboot, Terminate

25. What happens when an EC2 instance is stopped?
    a) The instance is permanently deleted
    b) The instance is charged for compute time
    c) The instance retains its EBS volumes
    d) All data is lost
26. What is a potential impact of terminating an EC2 instance?
    a) EBS volumes are detached but not deleted
    b) Instance data is preserved
    c) Public IP is reassigned
    d) Instance data is permanently deleted
27. How can you automate instance recovery in case of failure?
    a) Use CloudWatch alarms
    b) Enable Auto Scaling
    c) Configure Elastic IPs
    d) Use S3 for backup
28. Which action is irreversible in EC2 management?
    a) Stopping an instance
    b) Terminating an instance
    c) Rebooting an instance
    d) Modifying instance type
29. What is the result of rebooting an EC2 instance?
    a) The instance data is deleted
    b) The instance restarts with no data loss
    c) The instance stops temporarily
    d) A new public IP is assigned
30. How can you ensure an instance automatically starts after stopping?
    a) Enable Elastic Load Balancing
    b) Configure an Auto Scaling group
    c) Use AWS Systems Manager
    d) Enable persistent state in the settings

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