Examkin

Question

Difficulty: MediumCommon Ports and Protocols

A system administrator is configuring perimeter firewall rules for a newly provisioned edge appliance. The appliance requires remote encrypted web-based management and secure file upload capabilities via Secure Shell (SSH). Which TWO of the following port and transport protocol combinations must be opened inbound on the firewall to satisfy these operational requirements? (Select TWO)

  1. TCP port 443 for HTTPS administrative accessAnswer
  2. TCP port 22 for SSH-based Secure File Transfer Protocol (SFTP)Answer
  3. C
    UDP port 443 for HTTPS administrative access
  4. D
    TCP port 21 for SSH-based Secure File Transfer Protocol (SFTP)

Answer

The firewall rules must permit inbound traffic on TCP port 443 for HTTPS administrative access and TCP port 22 for SFTP secure file transfer.
TCP port 443 is the standard port reserved for HTTPS traffic, providing encrypted web management capabilities over connection-oriented TCP. TCP port 22 is the standard port for Secure Shell (SSH) services, which includes SFTP for secure file operations.

Step-by-Step Solution

1
Determine the default transport protocol and port for encrypted web access.
HTTPS uses TCP port 443.
Hypertext Transfer Protocol Secure (HTTPS) requires reliable connection-oriented delivery over TCP port 443.
2
Determine the default transport protocol and port for secure SSH file management.
SFTP uses TCP port 22.
SSH File Transfer Protocol (SFTP) runs as an subsystem of SSH, utilizing TCP port 22.

Key Concept

Default transport protocols and port assignments for encrypted web and remote management services
Rate this question

Topics

Common Ports and Protocols

More questions from this topic