Examkin

Question

Difficulty: EasyNetworking Ports and Protocols

A network technician is configuring firewall access rules to allow secure, encrypted remote command-line management and encrypted directory authentication services across a network. Which of the following port numbers should be permitted? (Select TWO.)

  1. Port 22Answer
  2. Port 636Answer
  3. C
    Port 23
  4. D
    Port 389

Answer

Port 22 (SSH) and Port 636 (LDAPS)
Port 22 is used by Secure Shell (SSH) to provide secure, encrypted command-line remote access. Port 636 is used by Lightweight Directory Access Protocol Secure (LDAPS) to provide SSL/TLS-encrypted directory services.

Step-by-Step Solution

1
Identify the required secure protocols from the scenario description.
Encrypted remote command-line administration requires SSH, and encrypted directory authentication requires LDAPS.
Security standards mandate encrypted protocols instead of unencrypted alternatives.
2
Map SSH and LDAPS to their standard default TCP port numbers.
SSH uses TCP port 22, and LDAPS uses TCP port 636.
Configuring network firewalls requires using standard default port assignments for target services.

Key Concept

Default port assignments for secure administration protocols (SSH and LDAPS)
Rate this question

Topics

Networking Ports and Protocols

More questions from this topic