File Encryption and Security Concepts

This video tutorial by Tech G covers the basics of encryption, including plaintext vs. ciphertext, data at rest, and data in transit. It explains file and disk encryption methods, such as EFS and BitLocker, and discusses encryption on different operating systems like Windows, MacOS, and Linux. The tutorial also covers mobile device encryption and data protection during transit, including VPNs and secure messaging apps. The video concludes with a summary and review questions to reinforce learning.

What is the term for text that has not been encrypted?

• Cipher text

• Plain text

• Encrypted text

• Encoded text

Which of the following is an example of data at rest?

• A live video stream

• A message in transit

• A file stored on a hard drive

• An email being sent

What does EFS stand for in the context of Windows encryption?

• Encrypted File System

• Enhanced File Security

• Encryption File Service

• Encrypted Folder System

Which encryption tool is built into Mac OS for full disk encryption?

• Axcrypt

• BitLocker

• FileVault 2

• Veracrypt

What is the primary encryption standard used by iOS devices?

• AES 128-bit

• RSA 2048-bit

• Blowfish

• AES 256-bit

Which protocol is used to secure web pages and is indicated by a padlock symbol in the browser?

• SMTP

• HTTPS

• FTP

• HTTP

What does VPN stand for?

• Verified Public Network

• Virtual Private Network

• Virtual Public Network

• Verified Private Network

Which of the following is a benefit of using a VPN?

• Unlimited data usage

• Secure connection over public Wi-Fi

• Increased internet speed

• Free access to all websites

Which app is known for providing secure messaging on both iOS and Android?

• Twitter

• Instagram

• Signal

• Facebook Messenger

How can you tell if a file is encrypted in Windows 10?

• It has a key with a magenta file name

• It has a padlock with a green file name

• It has a padlock with a red file name

• It has a key with a blue file name