PCNSE Securing Traffic and App-ID Practice Question
An administrator needs to create a custom application for a proprietary database protocol that uses TCP port 7890. What is the first step in defining this application in App-ID?
⚠ Common exam trap
Watch out — candidates often confuse the order of operations and think they need to first create an application group or tag to organize the custom application, but the actual first step is always to create the application object itself with its default port.
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
✓
Create a new application and define the default port.
To create a custom application for a proprietary database protocol using TCP port 7890, the first step is to create a new application and define the default port. In App-ID, custom applications are defined by specifying the application name, the protocol (TCP/UDP), and the default port number, which allows the firewall to identify traffic for that application based on the port. This is the foundational step before any additional properties like timeouts or advanced settings can be configured.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a new application and define the default port.
Why this is correct
Correct: Creating the application object with its default port is the foundational step.
- ✗
Create a new application group.
Why it's wrong here
An application group is used to group existing applications, not to define a new one.
- ✗
Create a new custom application tag.
Why it's wrong here
Tags are for categorization and do not define the application itself.
- ✗
Create a new application filter.
Why it's wrong here
Application filters are used to dynamically select applications based on attributes, not to define a new application.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNSE 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 PCNSE exam.