PCNSA Managing Objects Practice Question
A security administrator needs to create an address object for a single host with IP address 192.168.1.100. Which address type should the administrator choose?
⚠ Common exam trap
The trap here is that candidates familiar with Cisco ACLs might choose IP Wildcard Mask (Option C) because they associate wildcard masks with host matching, but Palo Alto Networks uses IP Netmask as the standard and more straightforward method for defining a single host.
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
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IP Netmask
For a single host with IP address 192.168.1.100, the IP Netmask type is correct because it allows you to define a host by specifying the IP address with a /32 netmask (255.255.255.255). This is the standard method in Palo Alto Networks firewalls to represent a single host, ensuring the device treats it as an exact match for traffic policy and security 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.
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FQDN
Why it's wrong here
An FQDN object resolves a hostname to an IP address via DNS, so it cannot represent the literal address 192.168.1.100 without a name to resolve. FQDN objects suit hosts whose addresses change dynamically, such as cloud services behind rotating IPs, where resolving a domain name is the intended mechanism.
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IP Netmask
Why this is correct
IP Netmask defines a host by pairing an address with a subnet mask, so entering 192.168.1.100 with mask 255.255.255.255 (/32) isolates that single host. This satisfies the stem's requirement for one host, whereas IP Range and FQDN cannot express a lone address as precisely.
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IP Wildcard Mask
Why it's wrong here
A wildcard mask defines a range of addresses by matching bits, so it cannot represent one host as a discrete object; the host type takes a single /32 address. Wildcard masks suit security policies or OSPF network statements needing non-contiguous or subnet-range matching, not a lone host entry.
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IP Range
Why it's wrong here
An IP range object spans a contiguous block of addresses, so it cannot represent one host precisely and may inadvertently include neighbouring addresses. Ranges are correct when defining a pool of addresses, such as a DHCP scope or subnet.
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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.