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| Section | Weight | Objectives |
|---|---|---|
| Security Policy | 25% | - Policy Scheduling - Policy Troubleshooting - Policy Logging - Policy Components and Structure |
| UTM (Unified Threat Management) | 15% | - Antispam - Web Filtering - Antivirus - Content Filtering |
| Screen Options | 15% | - Screen Options Configuration - Custom Screen Options - Attack Detection and Mitigation |
| High Availability Clustering | 20% | - Control and Data Plane Synchronization - Chassis Cluster Architecture - Configuration and Troubleshooting - Failover Behavior |
| IPsec VPNs | 25% | - Policy-Based VPNs - VPN High Availability - Route-Based VPNs - IKE Phase 1 and Phase 2 - VPN Troubleshooting |
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NEW QUESTION # 24
You are asked to use Junos Space Security Director to download the latest application signatures in the AppID database.
In this scenario, which two statements are correct? (Choose two.)
Answer: B,D
Explanation:
The correct answers are A and B. In Security Director-managed environments, Security Director can download the signature database and then install the active signature database update on selected managed devices. Juniper's Security Director workflow states that after the signature database is downloaded, you install the active database, select the target devices, and Security Director sends the full or incremental signature database update to those devices. That confirms that Security Director stores and manages the signature database package centrally for deployment.
Option B is also correct because the SRX Series device must have the application signature database installed locally for AppID/AppSecure features such as AppFW, AppTrack, AppQoS, and IDP application matching.
Juniper's AppID documentation states that the application package is installed in the application signature database on the device, and that AppID signature updates enable AppSecure features on the SRX.
Option C is wrong because Juniper provides and maintains the predefined AppID database through Juniper's security download infrastructure, not a third-party host. Juniper explicitly describes the predefined application identification database as provided by Juniper Networks and updated through a subscription service. Option D is wrong because a local storage server can be used only as part of an offline/manual update workflow; it is not where the AppID database normally resides. Reference topics: Security Director, AppID database, application signatures, SRX AppSecure services, signature database installation.
NEW QUESTION # 25
In Juniper high availability (HA) SRX Series device implementations, which interface will be used to exchange session state, configuration files, and ensure session continuity across nodes using the proprietary Trivial Network Protocol?
Answer: B
Explanation:
The correct answer is A. fab. In SRX Series chassis clustering, the fabric interface, shown as fab0/fab1, is the data-plane HA link used between cluster nodes. Juniper states that SRX chassis clusters use the fabric interface for session synchronization and traffic forwarding, and that the fabric link synchronizes dynamic runtime state, including session-state objects created by NAT, ALG, authentication, and IPsec processing.
This is what enables stateful failover and session continuity when traffic processing moves between nodes.
Option B, fxp0, is wrong because fxp0 is the out-of-band management interface, not the chassis-cluster synchronization path. Option C, fxp1, is tempting but wrong for this question: fxp1 is the control-link interface used for control-plane cluster functions such as heartbeats and cluster control communication, not the main session-state synchronization path. Option D, swfab, is not the standard SRX chassis-cluster fabric interface name used for this function. Juniper's clustering configuration examples specifically define fab0 and fab1 as the interfaces used for the fabric connection and data-plane RTO/session synchronization.
NEW QUESTION # 26
You want to control when cluster failovers occur.
In this scenario, which two specific parameters would you configure on an SRX Series device? (Choose two.)
Answer: A,D
Explanation:
To control when cluster failovers occur, you need to configure two specific parameters on an SRX Series device: heartbeat-interval and heartbeat-threshold. These parameters determine how often the nodes in a cluster exchange heartbeat messages and how many consecutive heartbeats can be missed before a failover is triggered. The heartbeat-interval specifies the time interval in seconds between each heartbeat message. The default value is 1 second and the range is from 0.1 to 10 seconds. The heartbeat- threshold specifies the number of consecutive heartbeats that must be missed before a failover occurs.
The default value is 3 and the range is from 2 to 255.
Reference: = Configuring Chassis Clustering on SRX Series Devices, Chassis Cluster Redundancy Group Failover
NEW QUESTION # 27
Which three algorithms are used to encrypt IP packets? (Choose three.)
Answer: C,D,E
Explanation:
The correct answers are A, D, and E. In IPsec VPN terminology, DES, 3DES, and AES are encryption algorithms used to provide confidentiality for protected IP traffic. Juniper's IPsec material identifies AES, DES, and Triple DES/3DES as IPsec encryption standards, while separating them from authentication hash algorithms such as MD5, SHA-1, and SHA-2. This distinction matters heavily in JNCIS-SEC because IPsec proposals contain different cryptographic functions: encryption protects packet confidentiality, while authentication/hash algorithms validate integrity and origin.
Option B, SHA-1, is incorrect because SHA-1 is a hashing/authentication algorithm, not an encryption algorithm. It produces a message digest used for integrity checking and authentication, commonly as an HMAC variant. Option C, MD5, is also incorrect for the same reason: MD5 is a message-digest algorithm used for authentication/integrity, not for encrypting payload data. AES is the modern preferred encryption family because it is cryptographically stronger than DES and 3DES at comparable key strengths, while DES and 3DES remain historically recognized IPsec encryption algorithms. Reference topics: IPsec VPN, IPsec proposals, encryption algorithms, authentication algorithms, DES, 3DES, AES, SHA, and MD5.
NEW QUESTION # 28
You are troubleshooting unexpected issues on your JIMS server due to out of order event log timestamps.
Which action should you take to solve this issue?
Answer: A
Explanation:
To solve the issue of out of order event log timestamps on your JIMS server, you should enable time synchronization on the domain controllers. JIMS (Juniper Identity Management Service) is a Windows service that collects user, device, and group information from Active Directory domains or syslog sources and provides it to SRX Series devices and CSO for identity-based security policies. JIMS relies on the timestamps of the event logs generated by the domain controllers to track user logins, logouts, and IP address changes. If the domain controllers have different or inaccurate clocks, the event logs may have out of order or incorrect timestamps, which can cause JIMS to miss or misinterpret some events and affect its accuracy and performance. Therefore, you should ensure that all the domain controllers in your network are synchronized with a reliable time source, such as an NTP server or a Windows Time service. Reference: = Juniper Identity Management Service User Guide, Juniper Identity Management Service Feature Guide, Configure JIMS Collector to Get Microsoft Event Logs, Considerations for timestamps in centralized logging platforms
NEW QUESTION # 29
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