Ultimate Guide to the JN0-231 - Latest Dec 11, 2025 Edition Available Now
2025 Updated Verified Pass JN0-231 Exam - Real Questions and Answers
NEW QUESTION # 39
Which two feature on the SRX Series device are common across all Junos devices? (Choose two.)
- A. The separation of control and forwarding planes
- B. UTM services
- C. Stateless firewall filters
- D. screens
Answer: A,C
NEW QUESTION # 40
When configuring antispam, where do you apply any local lists that are configured?
- A. advanced security policy
- B. custom objects
- C. antispam UTM policy
- D. antispam feature-profile
Answer: B
Explanation:
user@host# set security utm custom-objects url-pattern url-pattern-name https://www.juniper.net/documentation/us/en/software/junos/utm/topics/topic-map/security-local-list-antispam-filtering.html
NEW QUESTION # 41
Which statement is correct about Junos security policies?
- A. Security policies control the flow of internal traffic within an SRX Series device.
- B. Security policies determine which users are allowed to access an SRX Series device.
- C. Security policies identity groups of users that have access to different features on an SRX Series device.
- D. Security policies enforce rules that should be applied to traffic transiting an SRX Series device.
Answer: D
Explanation:
The correct statement about Junos security policies is that they enforce rules that should be applied to traffic transiting an SRX Series device. Security policies control the flow of traffic between different zones on the SRX Series device, and dictate which traffic is allowed or denied. They can also specify which application and service requests are allowed or blocked. More information about Junos security policies can be found in the Juniper Networks technical documentation here: https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-policies-overview.html.
NEW QUESTION # 42
Your ISP gives you an IP address of 203.0.113.0/27 and informs you that your default gateway is 203.0.113.1. You configure destination NAT to your internal server, but the requests sent to the webserver at 203.0.113.5 are not arriving at the server.
In this scenario, which two configuration features need to be added? (Choose two.)
- A. security policy
- B. firewall filter
- C. UTM policy
- D. proxy-ARP
Answer: A,D
NEW QUESTION # 43
You have multiple branch locations using an SRX Series device. You want a cloud-based solution to configure and monitor this device.
this scenario, which solution would you use?
- A. Junos Space Security Director
- B. Juniper Sky Enterprise
- C. J-Web
- D. Juniper Secure Analytics
Answer: B
Explanation:
Understanding the Requirement:
The scenario involves managing multiple branch SRX Series devices using a cloud-based solution for configuration and monitoring.
The solution must provide centralized visibility and control without requiring extensive on-premise infrastructure.
Evaluation of the Options:
Option A: J-Web
J-Web is a local web-based GUI tool for configuring and managing a single Juniper device.
It is not a cloud-based solution and is suitable for small-scale, device-specific management.
Incorrect.
Option B: Juniper Sky Enterprise
Juniper Sky Enterprise is a cloud-based management platform specifically designed for Juniper devices, including SRX Series.
It provides centralized configuration, monitoring, and management for distributed branch locations.
It does not require any on-premises infrastructure and is easy to deploy.
Features include:
Zero-touch provisioning.
Policy-based management.
Centralized logging and reporting.
Correct.
Option C: Junos Space Security Director
Junos Space Security Director is an on-premises or private cloud management tool for managing Juniper security devices.
It is not a fully cloud-based solution and requires the Junos Space platform to be deployed in the network.
Suitable for larger enterprises with a private data center.
Incorrect.
Option D: Juniper Secure Analytics (JSA)
JSA is a log and event management solution designed for security analytics and threat intelligence.
It focuses on collecting and analyzing security logs rather than device configuration and monitoring.
Incorrect.
Why Juniper Sky Enterprise is the Correct Solution:
Cloud-Based Management: Juniper Sky Enterprise provides a fully cloud-hosted environment for managing and monitoring SRX devices, making it ideal for distributed branches.
Ease of Deployment: Requires no additional hardware or software at the branch location.
Comprehensive Features: Offers visibility, configuration management, and logging for multiple SRX devices from a centralized dashboard.
Scalability: Suitable for small to large-scale deployments with minimal operational overhead.
Juniper Security Reference:
Refer to the Juniper Sky Enterprise Overview for detailed documentation and features.
NEW QUESTION # 44
Which three Web filtering deployment actions are supported by Junos? (Choose three.)
- A. Use remote lists.
- B. Use Juniper Enhanced Web Filtering.
- C. Use local lists.
- D. Use Websense Redirect.
- E. Use IPS.
Answer: B,C,D
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/utm/topics/concept/utm-web-filtering-overview.html
NEW QUESTION # 45
Which statement about NAT is correct?
- A. Destination NAT takes precedence over static NAT.
- B. Source NAT is processed before security policy lookup.
- C. Static NAT takes precedence over destination NAT.
- D. Static NAT is processed after forwarding lookup.
Answer: C
NEW QUESTION # 46
You are deploying an SRX Series firewall with multiple NAT scenarios.
In this situation, which NAT scenario takes priority?
- A. static NAT
- B. interface NAT
- C. destination NAT
- D. source NAT
Answer: B
Explanation:
This is because the interface NAT would allow the connections to pass through the firewall - and thus, would ensure that the appropriate ports are open in order to allow for the connections to be established.
This is a really important step in order to ensure that all of the appropriate traffic is allowed through the SRX Series firewall - and thus, it must be a priority when deploying the firewall.
NEW QUESTION # 47
Which two statements are correct about the null zone on an SRX Series device? (Choose two.)
- A. The null zone is created by default.
- B. The null zone is a functional security zone.
- C. You must enable the null zone before you can place interfaces into it.
- D. Traffic sent or received by an interface in the null zone is discarded.
Answer: A,D
Explanation:
According to the Juniper SRX Series Services Guide, the null zone is a predefined security zone that is created on the SRX Series device when it is booted. Traffic that is sent to or received on an interface in the null zone is discarded. The null zone is not a functional security zone, so you cannot enable or disable it.
NEW QUESTION # 48
Which two criteria should a zone-based security policy include? (Choose two.)
- A. zone context
- B. an action
- C. a source port
- D. a destination port
Answer: B,D
NEW QUESTION # 49
Unified threat management (UTM) inspects traffic from which three protocols? (Choose three.)
- A. HTTP
- B. SSH
- C. SNMP
- D. SMTP
- E. FTP
Answer: A,D,E
Explanation:
https://www.inetzero.com/blog/unified-threat-management-deeper-dive-traffic-inspection/
NEW QUESTION # 50
Click the Exhibit button.
What is the purpose of the host-inbound-traffic configuration shown in the exhibit?
- A. to permit host inbound HTTP traffic on the internal security zone
- B. to permit host inbound HTTP traffic and deny all other traffic on the internal security zone
- C. to deny and log all host inbound traffic on the internal security zone, except for HTTP traffic
- D. to permit all host inbound traffic on the internal security zone, but deny HTTP traffic
Answer: D
NEW QUESTION # 51
You want to verify the peer before IPsec tunnel establishment.
What would be used as a final check in this scenario?
- A. traffic selector
- B. st0 interfaces
- C. perfect forward secrecy
- D. proxy ID
Answer: D
Explanation:
The proxy ID is used as a final check to verify the peer before IPsec tunnel establishment. The proxy ID is a combination of local and remote subnet and protocol, and it is used to match the traffic that is to be encrypted. If the proxy IDs match between the two IPsec peers, the IPsec tunnel is established, and the traffic is encrypted.
Reference:
Juniper Networks SRX Series Services Gateway IPsec Configuration Guide: https://www.juniper.net/documentation/en_US/release-independent/junos/topics/topic-map/security-ipsec-vpn-configuring.html
NEW QUESTION # 52
Which two addresses are valid address book entries? (Choose two.)
- A. 203.150.108.10/24
- B. 153.146.0.145/255.255.0.255
- C. 191.168.203.0/24
- D. 173.145.5.21/255.255.255.0
Answer: A,D
Explanation:
The correct address book entries are:
173.145.5.21/255.255.255.0
203.150.108.10/24
Both of these entries represent a valid IP address and subnet mask combination, which can be used as an address book entry in a Juniper device.
NEW QUESTION # 53
Which two IKE Phase 1 configuration options must match on both peers to successfully establish a tunnel? (Choose two.)
- A. gateway interfaces
- B. VPN name
- C. Diffie-Hellman group
- D. IKE mode
Answer: C,D
NEW QUESTION # 54
You must monitor security policies on SRX Series devices dispersed throughout locations in your organization using a 'single pane of glass' cloud-based solution.
Which solution satisfies the requirement?
- A. Junos Secure Connect
- B. J-Web
- C. Juniper Sky Enterprise
- D. Junos Space
Answer: D
Explanation:
Junos Space is a management platform that provides a single pane of glass view of SRX Series devices dispersed throughout locations in your organization. It provides visibility into the security policies of the devices, allowing you to quickly identify and respond to security threats. Additionally, it provides the ability to manage multiple devices remotely and in real-time, enabling you to quickly deploy and update security policies on all devices. For more information, please refer to the Juniper Networks Junos Space Network Director User Guide, which can be found on Juniper's website.
NEW QUESTION # 55
Referring to the exhibit.
You have configured antispam to allow e-mail from example.com, however the logs you see that [email protected] is blocked What are two ways to solve this problem?
- A. Add [email protected] to the profile antispam address whitelist.
- B. Delete [email protected] from the profile antispam address whitelist
- C. Verify connectivity with the SBL server.
- D. Delete [email protected] from the profile antispam address blacklist
Answer: A,D
NEW QUESTION # 56
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