This video tutorial explains how to connect to an Amazon EC2 instance, focusing on using key pairs and SSH clients like Putty. It covers the EC2 dashboard, public DNS, and IP addresses, and provides a step-by-step guide on converting PEM files to PPK for Windows users. The tutorial also demonstrates logging into a Linux instance and executing basic commands, highlighting the importance of understanding default user accounts and Linux distributions.

What is the purpose of the key pair in connecting to an EC2 instance?

• To allocate more resources to the instance

• To monitor the instance's performance

• To provide a secure connection to the instance

• To encrypt data stored on the instance

Why might you prefer using a DNS name over an IP address for accessing an EC2 instance?

• DNS names provide a consistent address even if the IP changes

• DNS names are shorter and easier to remember

• DNS names are more secure than IP addresses

• DNS names are required for all AWS services

What tool is used to convert a PEM file to a PPK file for use with Putty?

• SSH Key Converter

• PuttyGen

• WinSCP

• FileZilla

What is the primary function of Putty in the context of connecting to an EC2 instance?

• To establish an SSH connection to the instance

• To convert PEM files to PPK files

• To provide a graphical interface for managing AWS resources

• To monitor the instance's performance

Which user account is typically used by default for Amazon AMI images?

• ec2-user

• ubuntu

• admin

• root

What command would you use to update packages on a Linux instance using Yum?

• yum update

• apt-get update

• update-packages

• pkg-update

Which command would you use to switch to root mode in a Linux terminal?

• admin mode

• root login

• switch user

• sudo su