JNCIA-SEC · domain
Security Policies
Practise Juniper Networks Security, Associate (JNCIA-SEC, JN0-232) (JNCIA-SEC) Security Policies practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.
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What to know about Security Policies
Security Policies questions test whether you can apply the concept in context, not just recognise a definition.
How the topic appears in realistic exam-style scenarios.
Which detail in the question changes the correct answer.
How to eliminate plausible but wrong options.
How to connect the question back to the wider exam objective.
Watch out for
Common Security Policies exam traps
- ▸Answering from memory before reading the full scenario.
- ▸Missing a constraint such as cost, availability, security, scope or command context.
- ▸Choosing a broad answer when the question asks for the most specific fix.
- ▸Ignoring why the wrong options are tempting.
Question index
All Security Policies questions (81)
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What is the purpose of the 'then { permit; }' statement in a Junos security policy?
Easy2Which TWO methods can be used to monitor or troubleshoot security policy drops in Junos OS? (Choose two.)
Hard3Which TWO statements are correct regarding Junos security policies and their evaluation behavior? (Choose two.)
Easy4Which TWO statements are correct regarding Junos security zones and policy creation? (Choose two.)
Easy5An auditor points out that a security policy configured on your SRX device is completely shadowed by an earlier policy in the same zone pair. What does policy shadowing mean in this context?
Hard6You need to log every time a specific security policy is hit by traffic, including when a session is closed. Which action modifier should you configure within the security policy?
Medium7An administrator notices that a security policy configured with a custom schedule is not enforcing time-based access control as expected. Upon checking the system time on the SRX device, it is discovered that the clock is set to UTC while the schedule was configured in local time without NTP synchronization. What is the recommended best practice to ensure security policy schedules operate correctly?
Hard8Which TWO statements describe the behavior and characteristics of global security policies in Junos OS? (Choose two.)
Hard9Which TWO methods can be used to view security policy hit counts and operational status on a Junos device? (Choose two.)
Easy10You need to modify an existing security policy named 'pol-1' to insert a new rule directly above it in the policy list using the Junos CLI. Which configuration command achieves this?
Medium11Which Junos configuration statement is used to insert a new security policy directly above an existing policy within the same zone pair?
Easy12You are configuring global security policies in Junos OS on an SRX Series device. Which statement is accurate regarding the evaluation order between zone-based policies and global policies?
Hard13You are troubleshooting a connection failure where traffic passing from zone A to zone B is being blocked. You check the security policies and notice an explicit permit rule exists, but traffic is still dropped. Upon reviewing session details using the operational command 'show security flow session', you see no session is created. Which feature or tool would best help you verify if the security policy match is failing due to zone mismatches or incorrect match criteria?
Medium14Which THREE components are mandatory when defining a standard zone-based security policy rule in Junos OS? (Choose three.)
Medium15You want to create a security policy that applies to traffic originating from a specific address book entry named 'HQ-Net' in the 'trust' zone destined for 'Branch-Net' in the 'untrust' zone. Where must the 'HQ-Net' address be defined?
Medium16You 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?
Medium17Which THREE methods can be used to modify the order of existing security policies in Junos OS? (Choose three.)
Medium18An administrator configures a security policy on a SRX Series device with the action set to 'count'. What is the primary function of this action in Junos security policies?
Medium19What is the primary difference between a zone-based security policy and a global security policy in Junos OS?
Easy20You are configuring a security policy that needs to match multiple specific applications (HTTP, HTTPS, and SSH) within a single rule. How should you specify these applications in the Junos CLI?
Medium21An administrator implements a security policy allowing HTTP traffic from the trust zone to the untrust zone. After committing the changes, web traffic fails because return traffic from the server is being dropped. What is the most likely cause of this behavior on a stateful SRX device?
Hard22An administrator configures a unified security policy with a custom application signature. However, traffic matching the expected port is failing because the application identification engine (AppID) has not yet recognized the session payload. What mechanism does Junos use to handle initial packets while AppID inspects the traffic?
Hard23Where are address books defined when configuring zone-based security policies in Junos OS?
Easy24Which TWO actions are available when configuring the 'then' statement in a Junos security policy? (Choose two.)
Easy25An enterprise network has multiple virtual routers configured within separate routing instances. How do security policies interact with traffic passing between two different routing instances on the same SRX device?
Hard26Which TWO factors contribute to policy shadowing in Junos security policy evaluation? (Choose two.)
Medium27You are troubleshooting a session-based firewall configuration on an SRX Series device. An application establishes a control connection on one port, but dynamically negotiates a secondary data port for file transfers. Without configuring an explicit policy for the secondary dynamic port, what Junos feature enables the security policy to dynamically permit this secondary data flow?
Medium28Which Junos CLI command allows an administrator to verify the active hit count and packet match statistics for a specific security policy?
Easy29Which TWO tools or operational commands are most useful for verifying security policy configuration syntax and validity before committing? (Choose two.)
Easy30When troubleshooting a unified security policy involving AppID and UTM services, which THREE elements must be correctly configured for the security policy to successfully apply content inspection? (Choose three.)
Hard31Which command is used to display the currently active security policies on a Junos device?
Easy32Which THREE types of logging modifiers are available when configuring logging in a Junos security policy? (Choose three.)
Medium33Which TWO actions can be specified in the 'then' statement of a Junos security policy? (Choose two.)
Easy34An administrator configures a security policy with source address 'any', destination address 'any', application 'junos-ssh', and action 'permit' between the trust and untrust zones. Another policy above it permits all traffic from a specific administrator IP to any destination for all applications. What tool can you use on the Junos CLI to verify which policy a specific SSH packet from the administrator IP will match?
Hard35When configuring Junos security policies, which TWO conditions can cause a newly added policy rule to be bypassed entirely? (Choose two.)
Hard36An administrator configures a security policy with a scheduler-name attribute to restrict access during specific hours. What occurs outside of the scheduled time window for an existing active session that was created during the allowed window?
Hard37Which TWO statements are correct regarding the behavior and configuration of global security policies on Junos OS SRX Series devices?
Medium38An administrator wants to ensure that when a security policy denies a packet, a log entry is generated immediately. Which policy action keyword should be appended or configured within the policy?
Easy39Which TWO conditions can cause a security policy to be considered shadowed in a Junos configuration? (Choose two.)
Hard40When configuring a zone-based security policy in Junos, what is the default action applied to any traffic that does not match any explicitly defined security policy rules?
Easy41You need to configure a security policy that matches any source IP address, any destination IP address, but a specific destination port (TCP 443). What is the correct Junos CLI syntax for specifying 'any' source address?
Medium42Which THREE components are required when defining a standard zone-based security policy in Junos OS? (Choose three.)
Medium43An administrator configures a security policy with a custom application definition that matches TCP port 8080. When testing the policy, traffic on port 8080 is matched, but the application identification engine flags the traffic as 'junos-http'. What is the reason for this behavior?
Hard44You need to configure a security policy that inspects traffic for computer viruses and malware as part of the unified security policy framework. Which security feature must be referenced within the policy action?
Medium45You want to ensure that any traffic matching a specific policy is directed to a logical tunnel interface for service chaining. Which policy action element supports this requirement?
Medium46An administrator needs to create a security policy on a Junos device that permits traffic from the trust zone to the untrust zone. Which configuration hierarchy is used to define this security policy?
Easy47Which TWO actions occur when a packet matches a security policy configured with the 'reject' action? (Choose two.)
Hard48An administrator is reviewing policy shadowing and rule optimization on an SRX Series device. Which THREE conditions must be met for one security policy to completely shadow (make redundant) a subsequent security policy?
Hard49When reviewing security policies, you see the term 'junos-any' used in the application match field. What does this represent?
Easy50Which THREE statements are true regarding global security policies in Junos OS? (Choose three.)
Medium51When reviewing security policies, you notice multiple rules defined within the same source-zone and destination-zone context. Which Junos feature allows you to group these related policies together for easier management and readability?
Medium52By default, what action does an SRX Series device take when traffic does not match any configured security policy between two zones?
Easy53Which TWO factors must be considered when designing security policies that incorporate AppID (Application Identification)? (Choose two.)
Hard54An administrator notices that security policy hit counts are not incrementing for a specific policy even though traffic is passing through the device. What is the most likely cause of this behavior?
Hard55When configuring the unified security policy framework on Junos OS, which TWO elements are key components that extend traditional layer 4 firewall policies into layer 7 application and threat visibility?
Easy56You are configuring security policies on an SRX Series device that uses destination NAT. In what order does Junos evaluate security policies relative to destination NAT processing?
Hard57Which Junos feature allows you to bundle multiple security policies into a single logical container for easier management and application across multiple zones?
Easy58An administrator configures a security policy with source address set 'Internal-Subnets', destination address 'Any', and application 'junos-ftp'. During testing, active FTP data connections (PASV mode) are failing. What security policy consideration is most relevant to fixing this issue?
Hard59You are troubleshooting a connectivity issue where traffic between two custom zones is being blocked despite a policy permitting it. Upon reviewing the security policies using the CLI command 'show security policies', you notice that an earlier policy with broader match criteria is catching the traffic and applying a deny action. What security policy concept is causing this behavior?
Medium60You are configuring a security policy and need to reference a group of IP addresses that frequently changes. You decide to use an address set. How do you add individual address entries into this address set?
Medium61Which statement correctly describes a Junos security zone requirement before you can apply a security policy referencing that zone?
Easy62An enterprise SRX deployment uses global security policies alongside traditional zone-based policies. An administrator configures a global policy to permit HTTP traffic from any zone to any zone. However, a more restrictive zone-based policy exists between the 'HR' zone and the 'Internet' zone that explicitly denies HTTP traffic. How does the SRX Series device process these conflicting policies?
Hard63An administrator implements AppID within the unified security policy framework on an SRX Series device to identify and control specific cloud-based applications. The initial policy uses a broad match for 'junos-ssl' at the transport layer, while a subsequent policy specifies 'junos-facebook' using AppID. How does the SRX policy engine evaluate and re-evaluate traffic when application identification takes multiple packets to determine?
Hard64An administrator needs to create a unified security policy that permits traffic from the trust zone to the untrust zone. Using Junos J-Web, which primary menu path should the administrator navigate to configure this security policy?
Easy65What happens to return traffic for an established session that was originally permitted by a security policy?
Easy66Which TWO items are valid options when specifying source addresses in a security policy match statement? (Choose two.)
Easy67Which operational command should you use to view active stateful firewall sessions currently passing through an SRX Series device?
Easy68Which THREE statements are true regarding Junos security policy configuration hierarchy and syntax? (Choose three.)
Medium69What is the default action taken by Junos OS when traffic does not match any configured security policy between two zones?
Easy70An enterprise security policy requires that any traffic traversing from the DMZ zone to the Internal zone must first be inspected by an application-identification engine before the policy action is enforced. Which feature must be enabled within the security policy to achieve this behavior?
Hard71During policy review, you notice that multiple global policies and zone-based policies are configured. In what order does the Junos security engine evaluate these policies when a packet arrives?
Hard72You need to configure a security policy that permits HTTP and HTTPS traffic from the 'users' zone to the 'internet' zone. You want to maintain clean configuration practices by grouping these applications together. Which Junos construct should you create first?
Medium73Which statement is true regarding address book configuration scope in Junos OS security policies?
Easy74Which statement accurately describes zone-based security policies in Junos OS?
Easy75An administrator reorganizes security policies on an SRX Series device and needs to move a high-priority policy to the top of the policy list within a specific zone context. Which Junos configuration command accomplishes this task efficiently?
Medium76You want to limit a security policy so that it only applies during non-business hours. After creating a scheduler object, where do you attach it to enforce this restriction?
Medium77An administrator implements a security policy that references a custom application matching UDP port 5000. When reviewing active traffic, packets on UDP port 5000 are being dropped even though a policy permits the custom application. Upon further inspection, you find that Junos AppID has classified the traffic as 'unknown-udp'. Why is the policy not matching?
Hard78You are configuring a security policy that needs to reference an address prefix that includes both IPv4 and IPv6 addresses. How should you handle this in Junos OS security address books?
Medium79An administrator configures a security policy with the action set to 'reject'. Another policy uses the action 'deny'. What is the functional difference between these two actions when a packet matches the policy?
Hard80You need to modify an existing security policy to add a new IP address to an existing address set used in the policy match criteria. Which configuration hierarchy should you access to update the address set?
Medium81Which THREE parameters can be used as match criteria within a Junos security policy? (Choose three.)
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Frequently asked questions
- What does the Security Policies domain cover on the JNCIA-SEC exam?
- Security Policies questions test whether you can apply the concept in context, not just recognise a definition.
- How many questions are in this domain?
- This page lists all 81 Security Policies questions in the JNCIA-SEC question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
- What is the best way to practise this domain?
- Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
- Can I practise only Security Policies questions?
- Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.