Launching an EC2 instance in AWS - Cheat Sheet & Quick Revision

Recall & Review

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What is an EC2 instance in AWS?

An EC2 instance is a virtual server in the cloud that you can use to run applications, just like a computer but hosted by AWS.

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Which key step is required before launching an EC2 instance?

You must select an Amazon Machine Image (AMI), which is a template that contains the operating system and software for your instance.

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What is the purpose of a security group when launching an EC2 instance?

A security group acts like a firewall that controls the traffic allowed to reach your EC2 instance.

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Why do you need a key pair when launching an EC2 instance?

A key pair is used to securely connect to your EC2 instance via SSH, ensuring only authorized users can access it.

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What does the instance type define when launching an EC2 instance?

The instance type defines the hardware resources like CPU, memory, and storage capacity your EC2 instance will have.

What is the first step to launch an EC2 instance?

A Choose an Amazon Machine Image (AMI)

B Create a security group

C Select an instance type

D Generate a key pair

You must first select an AMI, which is the base image for your instance.

What controls the network traffic allowed to your EC2 instance?

A Key pair

B Instance type

C Elastic IP

D Security group

Security groups act as firewalls controlling inbound and outbound traffic.

Which of these is NOT a valid instance type characteristic?

A CPU power

B Memory size

C Operating system

D Storage capacity

The operating system is defined by the AMI, not the instance type.

Why do you need a key pair when launching an EC2 instance?

A To assign an IP address

B To connect securely via SSH

C To select the instance type

D To create a security group

The key pair allows secure SSH access to your instance.

What is an Amazon Machine Image (AMI)?

A A template with OS and software

B A virtual server

C A firewall rule set

D A storage volume

An AMI is a template that contains the operating system and software for your instance.

Explain the main steps to launch an EC2 instance in AWS.

Think about the order from choosing the software to securing access.

Describe the role of security groups and key pairs when launching an EC2 instance.

One is about network safety, the other about user access.