HTTP and HTTPS protocols in Intro to Computing - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does HTTP stand for?

HTTP stands for HyperText Transfer Protocol. It is the basic protocol used to transfer web pages on the internet.

beginner

What is the main difference between HTTP and HTTPS?

HTTPS is HTTP with encryption. It uses SSL/TLS to secure data between your browser and the website, protecting it from eavesdropping.

beginner

Why is HTTPS important when entering passwords on websites?

HTTPS encrypts the data you send, like passwords, so hackers cannot easily read it if they intercept the connection. This keeps your information safe.

intermediate

What port numbers do HTTP and HTTPS typically use?

HTTP usually uses port <strong>80</strong>, while HTTPS uses port <strong>443</strong>. Ports are like doors that let data in and out of your computer.

beginner

Explain in simple terms how HTTPS protects your data using a real-world analogy.

Think of HTTP as sending a postcard anyone can read. HTTPS is like sending a locked box that only you and the receiver have the key to open, keeping the message private.

Which protocol encrypts data to keep it secure?

A FTP

B HTTP

C HTTPS

D SMTP

HTTPS encrypts data using SSL/TLS, while HTTP does not.

What port does HTTPS usually use?

A 443

B 21

C 80

D 25

HTTPS typically uses port 443 for secure communication.

What does HTTP stand for?

A Hyper Transfer Text Protocol

B HyperText Transfer Protocol

C Hyperlink Text Transfer Protocol

D HyperText Transmission Process

HTTP stands for HyperText Transfer Protocol.

Which of these is NOT a feature of HTTPS?

A Faster loading than HTTP

B Data integrity

C Data encryption

D Authentication of website

HTTPS does not necessarily load faster than HTTP; its main features are encryption, integrity, and authentication.

If a website URL starts with 'http://', what does it mean?

A The connection is secure

B The website uses FTP

C The website is offline

D The connection is not encrypted

URLs starting with 'http://' do not use encryption, so the connection is not secure.

Describe the difference between HTTP and HTTPS and why HTTPS is important for online security.

Think about how data travels and what risks exist without encryption.

Explain the role of port numbers in HTTP and HTTPS communication using a simple analogy.

Imagine your computer as a house with many doors.