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Security PolicieseasyMultiple ChoiceObjective-mapped

JNCIA-SEC Security Policies Practice Question

Which statement is true regarding address book configuration scope in Junos OS security policies?

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

An address book entry defined at the zone level can be referenced by security policies involving that specific zone.

Address books can be defined globally or bound to specific zones.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Address books cannot contain address sets; they can only contain single IP addresses.

    Why it's wrong here

    Incorrect. Address books can contain both individual addresses and address sets.

  • An address book entry defined at the zone level can be referenced by security policies involving that specific zone.

    Why this is correct

    Correct. Zone-level address books are available to policies matching that zone.

  • Zone-based address books override global address books if names overlap.

    Why it's wrong here

    Incorrect. Overlapping name resolution follows specific precedence, but uniqueness is best practice.

  • Address book entries must be globally unique across the entire device, even across different zones.

    Why it's wrong here

    Incorrect. Address book names can be scoped locally to zones.

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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.