Quick Answer
The answer is a Geography address object. This is the correct choice because a Geography address object leverages FortiGate’s built-in GeoIP database to match traffic based on the source IP’s country of origin, allowing the administrator to restrict access to a web server from only specific countries without needing to manually compile or update IP ranges. On the Fortinet NSE 4 Network Security Professional exam, this concept tests your understanding of how to efficiently implement country-based access control at the network edge, and it often appears in policy configuration scenarios where you must select the correct object type for the source field. A common trap is confusing Geography objects with FQDN or IP range objects, which cannot dynamically filter by country. To remember this, think: “Geo for geo-location” — if you need to restrict by country, the object type must start with “Geo.”
This NSE4 practice question tests your understanding of firewall policies and nat. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An administrator wants to restrict access to a web server from only specific countries. The FortiGate is located at the network edge. Which address object type should be used in the source field of the firewall policy?
FQDN address object
Why wrong: FQDN resolves to IPs, not countries.
Wildcard FQDN address object
Why wrong: Wildcard FQDN matches domain names, not countries.
Geography address object
Allows country-based filtering.
Subnet address object
Why wrong: Subnet objects are IP-based, not country-based.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Geography address object
Option C is correct because a Geography address object allows the FortiGate to match traffic based on the source IP's country of origin, using the built-in GeoIP database. This is the only address object type that can restrict access by country without requiring manual IP range updates.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
FQDN address object
Why it's wrong here
FQDN resolves to IPs, not countries.
Wildcard FQDN address object
Why it's wrong here
Wildcard FQDN matches domain names, not countries.
Geography address object
Why this is correct
Allows country-based filtering.
Related concept
Read the scenario before looking for a memorised answer.
Subnet address object
Why it's wrong here
Subnet objects are IP-based, not country-based.
Common exam traps
The trap here is that candidates may confuse Geography address objects with FQDN or Subnet objects, mistakenly thinking that a wildcard or domain-based object can filter by geographic location, when in fact only the Geography object leverages the FortiGate's GeoIP database for country-level matching.
Detailed technical explanation
FortiGate uses a GeoIP database (updated via FortiGuard) that maps IP address ranges to countries. When a Geography address object is used in a firewall policy source field, the FortiGate performs a lookup against this database for each packet's source IP, enabling country-based access control without maintaining static IP lists. This is especially useful for blocking traffic from high-risk regions or complying with data sovereignty requirements.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
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FAQ
Firewall Policies and NAT — This question tests Firewall Policies and NAT — Read the scenario before looking for a memorised answer..
The correct answer is: Geography address object — Option C is correct because a Geography address object allows the FortiGate to match traffic based on the source IP's country of origin, using the built-in GeoIP database. This is the only address object type that can restrict access by country without requiring manual IP range updates.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This NSE4 practice question is part of Courseiva's free Fortinet 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 NSE4 exam.
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