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| Section | Weight | Objectives |
|---|---|---|
| Security Policy | 25% | - Policy Components and Structure - Policy Troubleshooting - Policy Scheduling - Policy Logging |
| IPsec VPNs | 25% | - IKE Phase 1 and Phase 2 - Policy-Based VPNs - VPN High Availability - Route-Based VPNs - VPN Troubleshooting |
| UTM (Unified Threat Management) | 15% | - Web Filtering - Antivirus - Antispam - Content Filtering |
| High Availability Clustering | 20% | - Control and Data Plane Synchronization - Configuration and Troubleshooting - Chassis Cluster Architecture - Failover Behavior |
| Screen Options | 15% | - Custom Screen Options - Attack Detection and Mitigation - Screen Options Configuration |
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15. Frage
Which statement regarding Juniper Identity Management Service (JIMS) domain PC probes is true?
Antwort: B
Begründung:
Juniper Identity Management Service (JIMS) domain PC probes are used to map usernames to IP addresses in the domain security event log. This allows for the SRX Series device to verify authentication table information, such as group membership. The probes are triggered whenever a username to IP address mapping is not found in the domain security event log. By default, the probes are executed at 60-minute intervals.
16. Frage
You have configured a new site-to-site VPN tunnel. The exhibit shows the security IPsec statistics output for the specific tunnel index from one of the tunnel-end devices.
Which two statements are correct in this scenario? (Choose two.)
Antwort: B,D
Begründung:
The correct answers are C and D. The exhibit shows ESP encrypted bytes = 0, ESP decrypted bytes = 0, encrypted packets = 0, and decrypted packets = 0. That means no traffic is successfully passing through the IPsec tunnel. Juniper's show security ipsec statistics command displays ESP encrypted/decrypted packet and byte counters, so zero values on these counters indicate that the tunnel is not successfully carrying protected ESP traffic.
Option C is also correct because the output shows ESP authentication failures and ESP decryption failures.
Since ESP is the IPsec protocol responsible for encrypted payload handling, failures in ESP authentication
/decryption point to an ESP/IPsec Phase 2 mismatch or incorrect configuration, such as mismatched authentication algorithm, encryption algorithm, keys, proposal parameters, or incompatible negotiated SA settings. Juniper's IPsec overview explains that Phase 2 negotiates the IPsec SA used to authenticate traffic flowing through the tunnel, so ESP-related failures belong to the IPsec/ESP configuration path rather than AH.
Option A is wrong because the AH counters and AH authentication failures are zero; the evidence is not pointing to AH. Option B is unsupported because the output does not show peer reboot behavior. Reference topics: IPsec VPN, ESP statistics, Phase 2/IPsec SA negotiation, ESP authentication failures, ESP decryption failures.
17. Frage
Which two statements are true about the fab interface in a chassis cluster? (Choose two.)
Antwort: A,B
Begründung:
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.
18. Frage
Which two statements are correct about the fab interface in a chassis cluster? (Choose two.)
Antwort: A,B
Begründung:
The fab interface is a fabric link that connects the two nodes in a chassis cluster. A chassis cluster is a high-availability feature that groups two identical SRX Series devices into a cluster that acts as a single device.
The fab interface has two functions:
Real-time objects (RTOs) are exchanged on the fab interface to maintain session synchronization: RTOs are data structures that store information about active sessions, such as source and destination IP addresses, ports, protocols, and security policies. RTOs are exchanged between the nodes on the fab interface to ensure that both nodes have the same session information and can take over the traffic in case of a failover.
In an active/active configuration, inter-chassis transit traffic is sent over the fab interface: In an active/active configuration, both nodes in a cluster can process traffic for different redundancy groups (RGs). RGs are collections of interfaces or services that fail over together from one node to another. If traffic needs to transit from one RG to another RG that is active on a different node, it is sent over the fab interface.
Reference: = Configuring Chassis Clustering on SRX Series Devices, Chassis Cluster Redundancy Groups, Chassis Cluster Data Plane
19. Frage
You want to use user identity information to secure your network.
Which two actions must you perform on your SRX Series Firewall to accomplish this task? (Choose two.)
Antwort: A,C
Begründung:
The correct answers are A and C. To use user identity information on an SRX Series Firewall, the firewall must first be able to obtain identity mappings from an identity source or identity provider, such as Active Directory, JIMS, Aruba ClearPass, or another supported identity-aware firewall component. Juniper's identity- aware firewall documentation states that identity parameters are used to configure security policies so authenticated users receive the correct level of access, and that firewalls can query JIMS, obtain user identity information, and then enforce security policy decisions.
Option A is required because identity-aware enforcement only happens when security policies include user identity match criteria, such as source identity, users, roles, or groups. Juniper's source-identity policy reference states that source identities are used as match criteria in security policies, and when configured, traffic is matched against authentication-table entries before policy lookup completes. Option C is required because the SRX must be configured with an identity source/provider so it can populate or query identity mappings. Option B is not an SRX configuration task and is not generally required because users may already exist in appropriate AD groups. Option D is wrong for this question; the required SRX tasks are configuring identity integration and identity-aware policies, not adding a separate "user identity" license. Reference topics: Identity-Aware Security Policies, identity source/provider, authentication table, source-identity policy matching.
20. Frage
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