PCNSA Device Management and Services Practice Question
Which TWO management methods allow CLI access to a Palo Alto Networks firewall?
⚠ Common exam trap
A common mix-up: candidates confuse management methods that provide GUI access (HTTPS) with those that provide CLI access, or incorrectly assume that Telnet is still a supported option on modern firewalls due to its prevalence in older networking equipment.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
SSH
SSH (Secure Shell) is a standard management method that provides encrypted CLI access to Palo Alto Networks firewalls, allowing administrators to execute commands securely over a network. The serial console port on the firewall provides direct, out-of-band CLI access for initial configuration or troubleshooting when network connectivity is unavailable.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SSH
Why this is correct
SSH provides encrypted remote command-line access to the firewall's management interface, satisfying the CLI access requirement. Administrators authenticate against the management plane and issue operational or configuration commands through the terminal. This is one of the two supported CLI methods, alongside the console port, making it valid for this scenario.
- ✓
Serial console
Why this is correct
Serial console provides out-of-band CLI access via a direct physical cable to the device, bypassing network dependency entirely. This satisfies the stem's requirement for a management method granting CLI access, since it reaches the firewall's command line even when network interfaces are misconfigured or unreachable, unlike GUI-only or API-based methods.
- ✗
HTTPS
Why it's wrong here
HTTPS provides a web-based graphical interface, not command-line access, so it cannot satisfy a question asking for CLI management methods. It is tempting because the web UI is the primary administrative interface for most configuration tasks, and HTTPS would be the right answer if the question asked about browser-based management instead.
- ✗
HTTP
Why it's wrong here
HTTP provides a web-based GUI for configuration and monitoring, not a command-line interface, so it cannot satisfy a CLI-access requirement. It is tempting because administrators routinely manage firewalls through browser sessions, and HTTP would be the right choice when the task specifies graphical administration rather than terminal commands.
- ✗
Telnet
Why it's wrong here
Telnet provides CLI access, but transmits credentials and session data unencrypted, so it fails the security requirement the question implies. It is tempting because it genuinely offers remote command-line management and would be acceptable only on an isolated lab segment where traffic interception is impossible. SSH is the encrypted equivalent.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNSA practice question is part of Courseiva's free Palo Alto Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCNSA exam.