Lesson 4.1 - What is Authentication?

What is the process of uniquely identifying each user to prevent impersonation called?

• Encryption

• Authentication

• Hashing

• Salting

What are the most common ways of authenticating users?

• Encryption and hashing

• Passwords and passcodes

• Salting and brute force

• Dictionary attacks and plaintext

What is text that is not hidden in any way called?

• Ciphertext

• Encrypted text

• Plaintext

• Hashed text

What are the most common forms of encryption mentioned?

• AES and RSA

• TLS and SSL

• HTTPS and FTP

• SHA and MD5

What technique is used to create a fixed-length identifier for passwords stored on a server?

• Salting

• Encryption

• Hashing

• Brute force

What is a dictionary attack?

• An attack using random numbers

• An attack using a list of common passwords

• An attack using a single password repeatedly

• An attack using encrypted text

What is a brute force attack?

• An attack using a single password repeatedly

• An attack using a list of common passwords

• An attack methodically working through all possible passwords

• An attack using encrypted text

What does salting do to increase password security?

• Encrypts the password

• Adds a random value to the password

• Converts the password to plaintext

• Stores the password in a dictionary

What should you use if you use a 256-bit hash?

• 128-bit salt

• 512-bit salt

• 256-bit salt

• 64-bit salt

What should passwords be made up of?

• Only numbers

• Only letters

• Numbers, letters, and symbols

• Only symbols