HTTP and HTTPS in Computer Networks - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Difference Between HTTP and HTTPS

Which of the following best explains the main difference between HTTP and HTTPS?

A HTTP requires a digital certificate, but HTTPS does not.

B HTTP uses port 443 by default, while HTTPS uses port 80.

C HTTPS encrypts data between the browser and server, while HTTP sends data in plain text.

D HTTPS is slower because it does not use encryption.

💡 Hint

Think about security and data protection when browsing websites.

HTTPS adds encryption to protect data during transfer, making it secure. HTTP sends data without encryption, so it can be intercepted.

📋 Factual

intermediate

Default Ports for HTTP and HTTPS

What are the default port numbers used by HTTP and HTTPS protocols?

A HTTP uses port 80, HTTPS uses port 443.

B HTTP uses port 443, HTTPS uses port 80.

C Both HTTP and HTTPS use port 8080.

D HTTP uses port 21, HTTPS uses port 22.

💡 Hint

Remember the common ports for web traffic and secure web traffic.

HTTP typically uses port 80, while HTTPS uses port 443 to handle encrypted connections.

🔍 Analysis

advanced

Impact of HTTPS on Website Performance

Which statement correctly describes the impact of HTTPS on website performance compared to HTTP?

A HTTPS can slightly increase load time but improves security and trust.

B HTTPS makes websites load faster because it uses compression by default.

C HTTPS always makes websites load slower due to encryption overhead.

D HTTPS disables caching, causing slower page loads.

💡 Hint

Consider the trade-off between security and speed.

HTTPS adds encryption which can add a small delay, but modern optimizations minimize this impact while providing secure connections.

❓ Reasoning

advanced

Why Browsers Warn About HTTP Sites

Why do modern browsers often show warnings when you visit a website using HTTP instead of HTTPS?

A Because HTTP sites are slower and use more data.

B Because HTTP sites do not encrypt data, risking privacy and security.

C Because HTTP sites require special plugins to work.

D Because HTTP sites are not compatible with mobile devices.

💡 Hint

Think about what happens to your information when it travels over HTTP.

HTTP does not encrypt data, so information can be intercepted or altered, which is why browsers warn users to protect their privacy.

❓ Comparison

expert

SSL/TLS Role in HTTPS

What role does SSL/TLS play in HTTPS connections?

A SSL/TLS speeds up the connection by compressing data only.

B SSL/TLS is used only for email security, not web traffic.

C SSL/TLS replaces HTTP to create a new protocol.

D SSL/TLS encrypts the data and authenticates the server to the client.

💡 Hint

Consider how HTTPS ensures both privacy and trust.

SSL/TLS protocols encrypt data and verify the server's identity, which are essential for secure HTTPS connections.