A network administrator is configuring an enterprise firewall to permit two specific types of traffic:

Remote engineers must be able to securely manage network servers via an encrypted command-line interface.
Employees must be able to retrieve emails from the central mail server such that their read/unread states and folder structures remain fully synchronized across multiple client devices.

Which pair of application layer protocols and their standard TCP destination ports must the administrator permit through the firewall to support these requirements?

SSH (Port $22$ ) and IMAP (Port $143$ )

Telnet (Port $23$ ) and POP3 (Port $110$ )

SSH (Port $22$ ) and POP3 (Port $110$ )

SSH (Port $22$ ) and SMTP (Port $25$ )

A network administrator is configuring an enterprise firewall to permit two specific types of traffic:

Remote engineers must be able to securely manage network servers via an encrypted command-line interface.
Employees must be able to retrieve emails from the central mail server such that their read/unread states and folder structures remain fully synchronized across multiple client devices.

Which pair of application layer protocols and their standard TCP destination ports must the administrator permit through the firewall to support these requirements?

SSH (Port $22$ ) and IMAP (Port $143$ )

Telnet (Port $23$ ) and POP3 (Port $110$ )

SSH (Port $22$ ) and POP3 (Port $110$ )

SSH (Port $22$ ) and SMTP (Port $25$ )

Fundamentals of computer networks

Question 12

Markscheme

Fundamentals of computer networks

Question 12

Markscheme

Fundamentals of computer networks

Question 12

Fundamentals of computer networks Questions

Fundamentals of computer networks

Question 12

Fundamentals of computer networks Questions