Application Layer Quiz: Test Your Knowledge of HTTP, FTP, SMTP & More

Question 1

Which application layer protocol is specifically designed for transferring files between computers on a network?

Accepted Answer

FTP

Answer

HTTP

Answer

SMTP

Answer

DNS

Question 2

When a user wants to view a web page on the Internet, which protocol is used by the web browser to communicate with the web server and retrieve the page?

Accepted Answer

HTTP

Answer

FTP

Answer

SMTP

Answer

TCP

Question 3

Which application layer protocol is primarily responsible for sending and receiving electronic mail messages?

Accepted Answer

SMTP

Answer

FTP

Answer

HTTP

Answer

DNS

Question 4

In the TCP/IP model, what is the primary purpose of the Application Layer?

Accepted Answer

To provide services and functionalities to applications running on network devices, enabling them to communicate and exchange data.

Answer

To manage network addresses and routing information, facilitating efficient data transmission between devices.

Answer

To handle the physical transmission of data over network media, ensuring reliable data delivery.

Question 5

When a user types a domain name (e.g., 'www.example.com') into a web browser, which protocol is used to translate this domain name into its corresponding numerical IP address?

Accepted Answer

DNS

Answer

SMTP

Answer

HTTP

Answer

FTP

Question 6

Which of the following is NOT considered an application layer protocol in the TCP/IP model?

Accepted Answer

Ethernet

Answer

FTP

Answer

SMTP

Answer

HTTP

Question 7

When a user downloads a large file using FTP, which transport layer protocol is most likely being used to establish the connection and ensure reliable data transfer?

Accepted Answer

TCP

Answer

IP

Answer

UDP

Question 8

What is the primary difference between the HTTP and HTTPS protocols?

Accepted Answer

HTTPS utilizes encryption to secure communication, while HTTP does not, making HTTPS more secure for transmitting sensitive information.

Answer

HTTP is used for file transfer, while HTTPS is used for web browsing.

Answer

HTTPS is significantly faster than HTTP.

Question 9

A user encounters a 'DNS failure' error while trying to access a website. What is the most likely cause of this issue?

Accepted Answer

The domain name cannot be translated into its corresponding IP address, indicating a problem with DNS resolution.

Answer

The user's internet connection is not functioning properly.

Answer

The web server hosting the website is currently unavailable.

Question 10

Which application layer protocol is commonly used for real-time applications such as video conferencing and online gaming, where timely delivery of data is crucial?

Accepted Answer

RTP (Real-time Transport Protocol)

Answer

SMTP

Answer

DNS

Answer

FTP