JNCIA-SEC Security Policies Practice Question
You have multiple security policies configured within the context of a specific source and destination zone. A new requirement dictates that a specific subset of users must be denied access while everyone else in the same zone remains permitted. How should you order your security policies to achieve this without disrupting existing traffic?
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
✓
Place the explicit deny policy for the specific subset of users above the general permit policy.
Security policies are evaluated sequentially from top to bottom. More specific rules must be placed above broader rules.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Place the general permit policy above the deny policy and set the deny policy action to 'reject'.
Why it's wrong here
Incorrect. If the permit rule is placed first, matching traffic will be allowed immediately and the deny rule will never be reached.
- ✓
Place the explicit deny policy for the specific subset of users above the general permit policy.
Why this is correct
Correct. Junos evaluates policies in a top-down manner; placing the specific deny rule first ensures it matches before the broader permit rule.
- ✗
Convert the policies to global policies and place them at the bottom of the evaluation list.
Why it's wrong here
Incorrect. Global policies are evaluated after zone-based policies, and putting it at the bottom makes it ineffective.
- ✗
Use an address set to combine the users and rely on automatic policy sorting by IP prefix length.
Why it's wrong here
Incorrect. Junos security policies are not automatically sorted by IP prefix length; order is strictly determined by configuration sequence.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Juniper Networks exam blueprint
This JNCIA-SEC practice question is part of Courseiva's free Juniper 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 JNCIA-SEC exam.