Username/password authentication in IOT Protocols - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is username/password authentication?

It is a method where a user proves their identity by providing a username and a secret password. The system checks if these match stored records to allow access.

beginner

Why is username/password authentication important in IoT devices?

It helps protect devices from unauthorized access by ensuring only users with correct credentials can control or access the device.

beginner

What happens if a wrong password is entered during authentication?

The system denies access and may log the attempt. Repeated failures can trigger security measures like locking the account.

intermediate

How can username/password authentication be improved for better security?

By using strong passwords, enabling two-factor authentication, and encrypting passwords during storage and transmission.

intermediate

What is a common risk of using username/password authentication alone?

Passwords can be guessed, stolen, or leaked, so relying only on them can lead to unauthorized access if not combined with other security measures.

What two pieces of information are required in username/password authentication?

A IP address and port

B Email and phone number

C Username and password

D Device ID and token

Username and password are the basic credentials used to verify identity.

What should happen if a password is entered incorrectly?

A Access is granted

B User is logged out

C Password is reset automatically

D Access is denied

Access must be denied to protect the system from unauthorized users.

Which method can improve username/password security?

A Two-factor authentication

B Sharing passwords

C Using weak passwords

D Writing passwords on paper

Two-factor authentication adds an extra layer of security beyond just username and password.

Why is username/password authentication used in IoT devices?

A To protect devices from unauthorized access

B To allow anyone to access the device

C To slow down the device

D To increase device power consumption

It ensures only authorized users can control or access the device.

What is a risk of relying only on username/password authentication?

A It is too fast

B Passwords can be stolen or guessed

C It uses too much memory

D It requires no user input

Passwords alone can be weak if stolen or guessed, so additional security is recommended.

Explain how username/password authentication works in simple terms.

Think about how you log in to your email or phone.

Describe two ways to make username/password authentication more secure.

Consider what stops someone from guessing or stealing your password.