Network Protocols

What is a protocol in the context of network communication?

• A cable that connects different network devices

• A device that allows computers to connect to the internet

• A set of rules that allow two devices to communicate

• A type of software used for web browsing

What do Ethernet and Wi-Fi have in common?

• They are both used exclusively for local area networks (LANs)

• They are families of related protocols

• They are both used for routing packets across a WAN

• They are both protocols used for wireless communication

What is the primary function of TCP?

• To send short messages using datagrams

• To provide an error-free way of transmitting data between two routers

• To provide a connectionless transmission model

• To encrypt data sent over the internet

What distinguishes UDP from TCP?

• UDP uses a simple connectionless transmission model without error checking

• UDP is more reliable than TCP

• UDP is used for routing packets across a WAN

• UDP provides an error-free way of transmitting data

What is the main purpose of HTTP?

• To encrypt data sent over the internet

• To send files between computers on a WAN

• To send and receive requests for and delivery of HTML web pages

• To manage remote mailboxes and retrieve email from a mail server

How does HTTPS differ from HTTP?

• HTTPS does not support HTML web pages

• HTTPS is used for sending emails

• HTTPS adds a layer of encryption to HTTP

• HTTPS is used for sending files between computers

What is the role of SMTP in email communication?

• To send an email from the device to an email server

• To manage remote mailboxes

• To retrieve email from a mail server

• To encrypt email messages

What happens to the original copy of an email when using POP?

• It is removed from the server

• It is encrypted

• It remains on the server

• It is duplicated on the server

How does IMAP differ from POP?

• IMAP sends emails to an email server

• IMAP leaves the original copy of the email on the server

• IMAP encrypts email messages

• IMAP removes the original copy of the email from the server

What is the significance of the TCP/IP protocol stack?

• It is used exclusively for sending emails

• It encrypts data sent over the internet

• It is the foundation of all communication over the Internet

• It is used for wireless communication