Networking Protocols and Functions

This video tutorial covers essential network protocols for exams, explaining their functions and importance. It begins with an analogy to illustrate the concept of protocols, then delves into Ethernet and Wi-Fi, TCP/IP and UDP, HTTP and HTTPS, and concludes with file transfer and email protocols like FTP, SMTP, POP, and IMAP.

What is the primary function of a protocol in networking?

• To manage network traffic

• To allow two devices to communicate

• To increase internet speed

• To provide security

Which of the following is a family of related protocols used for local area networks?

• Wi-Fi

• Ethernet

• HTTP

• TCP

What is the main difference between Ethernet and Wi-Fi?

• Ethernet is wireless, Wi-Fi is wired

• Ethernet is for local area networks, Wi-Fi is for wide area networks

• Ethernet is faster than Wi-Fi

• Ethernet is a family of protocols for wired communication, Wi-Fi is for wireless communication

Which protocol provides an error-free way of transmitting data between two routers?

• IP

• UDP

• TCP

• HTTP

What is the primary function of the Internet Protocol (IP)?

• To encrypt data

• To provide wireless communication

• To route packets across a wide area network

• To manage email servers

Which protocol is considered less reliable than TCP but is used for speed over accuracy?

• HTTP

• UDP

• FTP

• IP

What does HTTPS add to HTTP?

• Error checking

• Routing capabilities

• Faster data transmission

• Encryption and authentication

Which protocol is used for sending files between computers on a wide area network?

• HTTP

• IMAP

• FTP

• SMTP

What is the main function of SMTP in email communication?

• To manage remote mailboxes

• To encrypt email content

• To send emails from a device to an email server

• To retrieve emails from a server

Which email protocol leaves the original copy of the email on the server when retrieved?

• POP

• FTP

• SMTP

• IMAP