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NEW QUESTION # 10
While working on an SRX firewall, you execute the show security policies policy-name <name> detail command.
Which function does this command accomplish?
- A. It identifies the different custom policies enabled.
- B. It shows policy counters for a configured policy.
- C. It shows the system log files for the local SRX Series device.
- D. It displays details about the default security policy.
Answer: B
Explanation:
The function that the show security policies policy-name <name> detail command accomplishes is showing policy counters for a configured policy. Policy counters are statistics that indicate how many times a policy has been matched by traffic and what actions have been taken by the policy. Policy counters can help you monitor and troubleshoot the performance and effectiveness of your security policies. The show security policies policy-name <name> detail command displays detailed information about a specific policy, such as its source zone, destination zone, description, state, hit count, byte count, packet count, action count, and session count.
Reference: = show security policies, show security policies information, [SRX] How to troubleshoot a security policy that is not passing data
NEW QUESTION # 11
Exhibit
You just finished setting up your command-and-control (C&C) category with Juniper ATP Cloud. You notice that all of the feeds have zero objects in them.
Which statement is correct in this scenario?
- A. Use the commit full command to start the download.
- B. The security intelligence policy must be configured; on a unified security policy
- C. No action is required, the feeds take a few minutes to download.
- D. Set the maximum C&C entries within the Juniper ATP Cloud GUI.
Answer: C
Explanation:
According to the Juniper Networks JNCIS-SEC Study Guide, when you set up your command-and- control (C&C) category with Juniper ATP Cloud, all of the feeds will initially have zero objects in them.
This is normal, as it can take a few minutes for the feeds to download. No action is required in this scenario and you will notice the feeds start to populate with objects once the download is complete.
NEW QUESTION # 12
Which two statements are true about the fab interface in a chassis cluster? (Choose two.)
- A. The fab link does not support fragmentation.
- B. The physical interface for the fab link must be specified in the configuration.
- C. The fab link supports traditional interface features.
- D. The Junos OS supports only one fab link.
Answer: A,B
Explanation:
The fabric link, used for data traffic synchronization between cluster nodes, is designed to handle packets at full size. It does not support packet fragmentation, which means that packets should be sized appropriately to avoid issues related to packet size limitations on the fab interface.
For chassis clustering, the specific physical interfaces used as fabric links (fab links) must be explicitly defined in the configuration. This specification is crucial to ensure proper data flow between nodes for state synchronization and other clustering functions.
NEW QUESTION # 13
Which two statements are true about application identification? (Choose two.)
- A. Application identification can identity nested applications that are within Layer 7.
- B. Application signatures are the same as IDP signatures.
- C. Application identification cannot identify nested applications that are within Layer 7.
- D. Application signatures are not the same as IDP signatures.
Answer: A,D
Explanation:
Application identification is a feature that enables SRX Series devices to identify and classify network traffic based on application signatures or custom rules. Application identification can enhance security, visibility, and control over network applications.
Two statements that are true about application identification are:
Application identification can identify nested applications that are within Layer 7: Nested applications are applications that run within another application protocol, such as HTTP or SSL. For example, Facebook or YouTube are nested applications within HTTP. Application identification can identify nested applications by inspecting the application payload and matching it against predefined or custom signatures.
Application signatures are not the same as IDP signatures: Application signatures are patterns of bytes or strings that uniquely identify an application protocol or a nested application. IDP signatures are patterns of bytes or strings that indicate an attack or an exploit against a vulnerability. Application signatures are used for application identification and classification, while IDP signatures are used for intrusion detection and prevention.
Reference: = [Application Identification Overview], [Application Identification Concepts], [Understanding Signature Rules and Protocol Anomaly Rules]
NEW QUESTION # 14
Which statement defines the function of an Application Layer Gateway (ALG)?
- A. The ALG uses software that is used by a single TCP session using the same port numbers as the application.
- B. The ALG uses software processes for permitting or disallowing specific IP address ranges.
- C. The ALG uses software processes for managing specific protocols.
- D. The ALG contains protocols that use one application session for each TCP session.
Answer: C
Explanation:
The statement that defines the function of an Application Layer Gateway (ALG) is: The ALG uses software processes for managing specific protocols. An ALG is a security component that operates at the application layer (layer 7) of the OSI model and handles data associated with certain application protocols, such as SIP, FTP, RTSP, etc. An ALG acts as a proxy or intermediary between the client and the server applications and performs various functions, such as address and port translation, resource allocation, application response control, and synchronization of data and control traffic. An ALG can also inspect and modify the application payload to enable firewall or NAT traversal, prevent spoofing or DoS attacks, or enforce granular security policies based on application-specific commands. Reference: = Application-level gateway - Wikipedia, What Is an Application Layer Gateway (ALG)? | F5, What is ALG
** Application Layer Gateway | 3CX
NEW QUESTION # 15
You are asked to create an IPS-exempt rule base to eliminate false positives from happening.
Which two configuration parameters are available to exclude traffic from being examined? (Choose two.)
- A. source port
- B. destination IP address
- C. source IP address
- D. destination port
Answer: B,C
Explanation:
You can specify the source IP address or a range of IP addresses to exclude certain traffic originating from specific network segments or devices. This is useful for whitelisting traffic from known, secure sources that are otherwise triggering false positives in the IPS system.
Similarly, you can specify the destination IP address or a range of addresses to exclude traffic destined for particular network hosts or segments. This helps in reducing false positives for traffic directed towards trusted internal resources or specific external services that are known to be safe.
NEW QUESTION # 16
You are asked to ensure that if the session table on your SRX Series device gets close to exhausting its resources, that you enforce a more aggress.ve age-out of existing flows.
In this scenario, which two statements are correct? (Choose two.)
- A. The high-watermark configuration specifies the percentage of how much of the session table is left before disabling a more aggressive age- out timer.
- B. The high-watermark configuration specifies the percentage of how much of the session table can be allocated before applying a more aggressive age-out timer
- C. The early-ageout configuration specifies the timeout value, in seconds, that will be applied once the high-watermark value is met.
- D. The early-ageout configuration specifies the timeout value, in seconds, that will be applied once the low-watermark value is met.
Answer: B,C
Explanation:
The early-ageout configuration specifies the timeout value, in seconds, that will be applied once the high- watermark value is met. The high-watermark configuration specifies the percentage of how much of the session table can be allocated before applying a more aggressive age-out timer. This ensures that the session table does not become full and cause traffic issues, and also ensures that existing flows are aged out quickly when the table begins to get close to being full.
NEW QUESTION # 17
You are configuring logging for a security policy.
In this scenario, in which two situations would log entries be generated? (Choose two.)
- A. every 10 minutes
- B. at session close
- C. at session initialization
- D. every 60 seconds
Answer: B,C
Explanation:
Log entries would be generated in two situations: at session initialization and at session close. At session initialization, the log entry would include details about the connection, such as the source and destination IP addresses, the service being used, and the action taken by the security policy. At session close, the log entry would include details about the connection, such as the duration of the session, the bytes sent/received, and the action taken by the security policy. For more information, you can refer to the Juniper Security documentation at
https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/security- log-co
NEW QUESTION # 18
Which two features are configurable on Juniper Secure Analytics (JSA) to ensure that alerts are triggered when matching certain criteria? (Choose two.)
- A. tests
- B. events
- C. assets
- D. building blocks
Answer: A,D
Explanation:
Building blocks in JSA are reusable components that define specific attributes or behaviors in the network traffic. They can be used to create complex criteria for alerts. By combining multiple building blocks, you can specify detailed conditions under which alerts should be triggered, such as combinations of events or specific sequences of actions within the network.
Tests in JSA are conditions or rules that analyze log or flow data to detect unusual or malicious activity.
You can configure tests to evaluate the data against predefined criteria, which, when met, will trigger alerts. These tests are essential for identifying potential security incidents and ensuring that relevant alerts are issued in a timely manner.
NEW QUESTION # 19
You are experiencing excessive packet loss on one of your two WAN links route traffic from the degraded link to the working link Which AppSecure component would you use to accomplish this task?
- A. AppFW
- B. AppQoE
- C. AppQoS
- D. APBR
Answer: D
Explanation:
APBR (Application Path-Based Routing) is an AppSecure component which can be used to route traffic from the degraded link to the working link in order to reduce packet loss. APBR is a policy-based routing solution that allows you to configure rules to direct traffic to the most appropriate path, based on application, user, or network metrics.
NEW QUESTION # 20
Exhibit
You are trying to create a security policy on your SRX Series device that permits HTTP traffic from your private 172 25.11.0/24 subnet to the Internet You create a policy named permit-http between the trust and untrust zones that permits HTTP traffic. When you issue a commit command to apply the configuration changes, the commit fails with the error shown in the exhibit.
Which two actions would correct the error? (Choose two.)
- A. Create a custom application named http at the [edit applications] hierarchy.
- B. Issue the rollback 1 command from the top of the configuration hierarchy and attempt the commit again.
- C. Modify the security policy to use the built-in Junos-http applications.
- D. Execute the Junos commit full command to override the error and apply the configuration.
Answer: A,C
Explanation:
The error message indicates that the Junos-http application is not defined, so you need to either create a custom application or modify the security policy to use the built-in Junos-http application. Doing either of these will allow you to successfully commit the configuration.
NEW QUESTION # 21
Which two functions does Juniper ATP Cloud perform to reduce delays in the inspection of files?
(Choose two.)
- A. Juniper ATP Cloud performs a cache lookup on files.
- B. Juniper ATP Cloud allows end users to bypass the inspection of files.
- C. Juniper ATP Cloud allows the creation of allowlists.
- D. Juniper ATP Cloud uses a single antivirus software package to analyze files.
Answer: A,C
Explanation:
Juniper ATP Cloud is a cloud-based service that provides advanced threat prevention and detection for your network. It integrates with SRX Series firewalls and MX Series routers to analyze files and network traffic for signs of malicious activity.
Two functions that Juniper ATP Cloud performs to reduce delays in the inspection of files are:
Juniper ATP Cloud allows the creation of allowlists: Allowlists are lists of trusted files or file hashes that are excluded from scanning by Juniper ATP Cloud. You can create allowlists based on file name, file type, file size, file hash, or sender domain. By using allowlists, you can reduce the number of files that need to be uploaded to Juniper ATP Cloud for analysis and improve the performance and efficiency of your network.
Juniper ATP Cloud performs a cache lookup on files: Cache lookup is a process that checks if a file has been previously scanned by Juniper ATP Cloud and if there is a cached verdict for it. If there is a cached verdict, Juniper ATP Cloud returns it immediately without scanning the file again. If there is no cached verdict, Juniper ATP Cloud uploads the file for analysis. By using cache lookup, you can reduce the time and bandwidth required for scanning files by Juniper ATP Cloud.
Reference: = [Juniper Advanced Threat Prevention Cloud (ATP Cloud)], [Configuring Allowlists],
[Understanding Cache Lookup]
NEW QUESTION # 22
Which two statements about unified security policies are correct? (Choose two.)
- A. Traffic can initially match multiple unified security policies.
- B. Unified security policies are evaluated after global security policies.
- C. APPID results are used to determine the final security policy
- D. Unified security policies require an advanced feature license.
Answer: A,C
NEW QUESTION # 23
Which two statements are correct about Juniper ATP Cloud? (Choose two.)
- A. Once the target threshold is met, Juniper ATP Cloud continues looking for threats levels range from 0 to 10 minutes.
- B. The threat levels range from 0-10.
- C. Once the target threshold is met, Juniper ATP Cloud continues looking for threats from 0 to 5 minutes.
- D. The threat levels range from 0-100.
Answer: B,D
Explanation:
In many threat intelligence and evaluation systems, including Juniper ATP Cloud, the threat levels are often scored on a scale to provide a quick reference of the potential risk associated with a threat. A common range for these threat levels is from 0 to 10, with 0 representing minimal or no threat and 10 representing a severe threat.
Alternatively, some systems may use a more granular scoring system ranging from 0 to 100, providing a more nuanced assessment of threat levels. This range allows for finer differentiation between the levels of threat severity.
NEW QUESTION # 24
Which two statements are correct about App Track? (Choose two.)
- A. App Track can be configured for any defined logical system on an SRX Series device.
- B. App Track can only be configured in the main logical system on an SRX Series device.
- C. App Track collects traffic flow information including byte, packet, and duration statistics.
- D. App Track identifies and blocks traffic flows that might be malicious regardless of the ports being used.
Answer: A,C
Explanation:
AppTrack is a feature that allows you to monitor and analyze the application traffic on your SRX Series device. It can be configured for any defined logical system, which is a virtual router or switch within a physical device. AppTrack collects statistics such as bytes, packets, and duration for each application flow and displays them in reports or logs. AppTrack does not identify or block malicious traffic, that is the function of AppSecure or IDP/IPS. Reference: = JNCIS-SEC Certification, Open Learning - Security, Specialist (JNCIS-SEC), Application Security Theory
NEW QUESTION # 25
Which two statements are correct about the Junos IPS feature? (Choose two.)
- A. IPS uses protocol anomaly rules to detect unknown attacks.
- B. IPS uses sandboxing to detect unknown attacks.
- C. IPS is integrated as a security service on SRX Series devices.
- D. IPS is a standalone platform running on dedicated hardware or as a virtual device.
Answer: A,C
Explanation:
Junos IPS is a feature that provides intrusion prevention and detection services on SRX Series devices.
It monitors network traffic and compares it against predefined signatures or custom rules to identify and block malicious or unwanted packets. Two statements that are correct about the Junos IPS feature are:
IPS is integrated as a security service on SRX Series devices: Junos IPS is not a separate platform or device, but a security service that runs on SRX Series firewalls. It can be enabled and configured as part of the security policy on the SRX Series device and applied to specific zones, interfaces, or traffic flows.
IPS uses protocol anomaly rules to detect unknown attacks: Junos IPS uses two types of rules to detect attacks: signature rules and protocol anomaly rules. Signature rules match traffic against known attack patterns or signatures and block them based on predefined actions. Protocol anomaly rules detect deviations from the expected behavior or structure of common protocols, such as TCP, UDP, ICMP, etc.
Protocol anomaly rules can help identify unknown or zero-day attacks that may not have a signature yet.
Reference: = Intrusion Detection and Prevention Feature Guide for Security Devices, Understanding Intrusion Detection and Prevention for SRX Series Devices, Understanding Signature Rules and Protocol Anomaly Rules
NEW QUESTION # 26
You want to set up JSA to collect network traffic flows from network devices on your network.
Which two statements are correct when performing this task? (Choose two.)
- A. Statistical sampling decreases event correlation accuracy.
- B. Superflows reduce traffic licensing requirements.
- C. BGP FlowSpec is used to collect traffic flows from Junos OS devices.
- D. Statistical sampling increases processor utilization
Answer: A,B
Explanation:
Statistical sampling involves collecting a representative subset of data rather than examining all traffic.
While this method decreases processor utilization by reducing the volume of data that must be analyzed and stored, it can also lead to decreased accuracy in event correlation because not all events are captured.
Superflows in JSA are aggregated flow records that represent summaries of multiple flow records. This aggregation reduces the number of flows that need to be processed and stored, which can help in managing licensing requirements related to the volume of traffic being analyzed, especially in environments with high traffic volumes.
NEW QUESTION # 27
On an SRX Series firewall, what are two ways that Encrypted Traffic Insights assess the threat of the traffic? (Choose two.)
- A. It validates the certificates used.
- B. It decrypts the file in a sandbox.
- C. It reviews the timing and frequency of the connections.
- D. It decrypts the data to validate the hash.
Answer: A,C
Explanation:
Encrypted Traffic Insights is a feature that enables the SRX Series firewall and the ATP Cloud to detect malicious threats that are hidden in encrypted traffic without decrypting the traffic. It does so by analyzing the metadata and connection patterns of the encrypted sessions.
Two ways that Encrypted Traffic Insights assess the threat of the traffic are:
It validates the certificates used: The SRX Series firewall extracts the server certificate from the encrypted session and compares its signature with a blocklist of known malicious certificates provided by ATP Cloud. If there is a match, the session is blocked and reported as a threat.
It reviews the timing and frequency of the connections: The SRX Series firewall sends the connection details, such as source and destination IP addresses, ports, protocols, and timestamps, to ATP Cloud.
ATP Cloud applies behavior analysis and machine learning algorithms to detect anomalous or suspicious patterns of connections, such as high frequency, low duration, or unusual timing. Reference: = Juniper Networks Expands Connected Security Portfolio with Encrypted Traffic Analysis for Juniper Advanced Threat Prevention and SecIntel for Mist Wireless, Encrypted Traffic Insights Overview, Configure Encrypted Traffic Insights
NEW QUESTION # 28
Click the Exhibit button.
You are validating the configuration template for device access. The commands in the exhibit have been entered to secure IP access to an SRX Series device.
Referring to the exhibit, which two statements are true? (Choose two.)
- A. The device manager can access the device from 192.168.11.248.
- B. The device manager can access the device from 10.253.1.2.
- C. The loopback interface blocks invalid traffic on its entry into the device.
- D. The loopback interface blocks invalid traffic on its exit from the device.
Answer: B,C
Explanation:
The commands in the exhibit show how to configure a firewall filter on the loopback interface (lo0) of an SRX Series device. The loopback interface is a gateway for all the control traffic that enters the Routing Engine of the device. The firewall filter can be used to monitor and protect this control traffic from various attacks. Two statements that are true based on the exhibit are:
The loopback interface blocks invalid traffic on its entry into the device: The firewall filter applied on lo0 has a term that matches any packet with an invalid source address (such as 0.0.0.0/8 or 127.0.0.0/8) and discards it. This prevents spoofing or DoS attacks using invalid source addresses. The device manager can access the device from 10.253.1.2: The firewall filter applied on lo0 has a term that matches any packet with a source address of 10.253.1.2 and accepts it. This allows the device manager to access the device from this IP address using protocols such as SSH, Telnet, HTTP, or HTTPS.
Reference: = Firewall Filter Support on Loopback Interface, [MX/SRX] The behavior of firewall filters that are applied on the loopback interfaces in virtual routers
NEW QUESTION # 29
You are currenty using a third-party threat analyzer. You want your SRX Series device to send decrypted SSE traffic to......
In this scenario, which feature should you configure on the SRX device?
- A. Phase 2 proxy ID
- B. JSA vulnerability assessment
- C. SSL decryption mirroring
- D. IPS IPanotify action
Answer: B,D
NEW QUESTION # 30
Click the Exhibit button.
You are asked to create a security policy that will automatically add infected hosts to the infected hosts feed and block further communication through the SRX Series device.
What needs to be added to this configuration to complete this task?
- A. Add logging to the permit portion of the security policy.
- B. Add a match rule to the security policy with an appropriate threat level.
- C. Add an action to the permit portion of the security policy.
- D. Add a security intelligence policy to the permit portion of the security policy.
Answer: D
Explanation:
To create a security policy that will automatically add infected hosts to the infected hosts feed and block further communication through the SRX Series device, you need to add a security intelligence policy to the permit portion of the security policy. A security intelligence policy is a policy that allows you to block or monitor traffic from malicious sources based on threat intelligence feeds from Juniper ATP Cloud or other providers. One of the feeds that you can use is the Infected-Hosts feed, which contains IP addresses of hosts that are infected with malware and communicate with command-and-control servers.
You can create a profile and a rule for the Infected-Hosts feed and specify the threat level and the action to take for the infected hosts. Then, you can link the security intelligence policy with the firewall policy and apply it to the traffic that you want to protect. Reference: = Security Intelligence Overview, Configuring Security Intelligence Policy, Configure the Security Intelligence Policy on the SRX Series Device
NEW QUESTION # 31
You want to permit access to an application but block application sub.
Which two security policy features provide this capability? (Choose two.)
- A. URL filtering
- B. APPID
- C. content filtering
- D. micro application detection
Answer: B,D
Explanation:
Micro application detection is a feature that enables more granular control over applications by identifying and taking action on sub-features or specific behaviors within an application. For example, allowing access to Facebook while blocking Facebook Chat.
Application Identification (APPID) is a feature that identifies and controls applications based on their traffic patterns and characteristics. APPID can be configured to recognize not only the main application but also its various subcomponents, allowing for precise control over what is allowed or blocked.
NEW QUESTION # 32
......
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