J277 1.3 Understanding Network Protocols

What is the primary function of a protocol in network communication?

• To store data

• To increase data transfer speed

• To provide a set of rules for communication

• To encrypt data

Which protocol is responsible for error-free data transmission between routers?

• HTTP

• SMTP

• TCP

• FTP

What does the IP protocol do?

• Encrypts web pages

• Routes packets across networks

• Sends emails

• Transfers files

What is the role of TCP in the TCP-IP protocol stack?

• Compressing data

• Error-free transmission

• Encrypting data

• Routing packets

What additional security does HTTPS provide over HTTP?

• Faster data transfer

• Data encryption

• Compression of data

• Error checking

Which protocol is primarily used for secure transactions on the web?

• TCP

• SMTP

• HTTPS

• FTP

What is the main use of FTP?

• Routing packets

• Encrypting data

• Transferring files between computers

• Sending emails

Which protocol is used to send an email from a device to an email server?

• HTTP

• POP

• SMTP

• IMAP

What is a key difference between POP and IMAP?

• POP leaves the email on the server, IMAP does not

• IMAP sends emails, POP receives emails

• IMAP leaves the email on the server, POP does not

• POP encrypts emails, IMAP does not

How does IMAP enhance email synchronization across devices?

• By deleting emails once read

• By storing emails only on the device

• By encrypting all emails

• By keeping the original email on the server