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[General] Latest JN0-637 Test Notes | Valid Dumps JN0-637 Sheet

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【General】 Latest JN0-637 Test Notes | Valid Dumps JN0-637 Sheet

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Juniper JN0-637 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Logical Systems and Tenant Systems: This topic of the exam explores the concepts and functionalities of logical systems and tenant systems.
Topic 2
  • Layer 2 Security: It covers Layer 2 Security concepts and requires candidates to configure or monitor related scenarios.
Topic 3
  • Troubleshooting Security Policies and Security Zones: This topic assesses the skills of networking professionals in troubleshooting and monitoring security policies and zones using tools like logging and tracing.
Topic 4
  • Multinode High Availability (HA): In this topic, aspiring networking professionals get knowledge about multinode HA concepts. To pass the exam,  candidates must learn to configure or monitor HA systems.
Topic 5
  • Advanced IPsec VPNs: Focusing on networking professionals, this part covers advanced IPsec VPN concepts and requires candidates to demonstrate their skills in real-world applications.
Topic 6
  • Advanced Policy-Based Routing (APBR): This topic emphasizes on advanced policy-based routing concepts and practical configuration or monitoring tasks.
Topic 7
  • Advanced Network Address Translation (NAT): This section evaluates networking professionals' expertise in advanced NAT functionalities and their ability to manage complex NAT scenarios.

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Juniper Security, Professional (JNCIP-SEC) Sample Questions (Q55-Q60):NEW QUESTION # 55
Referring to the exhibit, you are assigned the tenantSYS1 user credentials on an SRX series device.
In this scenario, which two statements are correct? (Choose two.)
  • A. When you log in to the device, you will be located at the operational mode of the main system hierarchy.
  • B. When you log in to the device, you will be permitted to view only the routing tables for the Tenant SYS1 logical system.
  • C. When you log in to the device, you will be located at the operational mode of the Tenant.SY51 logical system hierarchy.
  • D. When you log in to the device, you will be permitted to view all routing tables available on the on an SYS1 Series device.
Answer: B,C

NEW QUESTION # 56
Which two statements are true regarding NAT64? (Choose two.)
  • A. An SRX Series device should be in flow-based forwarding mode for IPv6.
  • B. An SRX Series device should be in flow-based forwarding mode for IPv4.
  • C. An SRX Series device should be in packet-based forwarding mode for IPv4.
  • D. An SRX Series device should be in packet-based forwarding mode for IPv6.
Answer: A,B
Explanation:
NAT64 requires flow-based forwarding for both IPv4 and IPv6 to ensure proper stateful inspection and address translation. Packet-based forwarding does not support the necessary stateful inspection needed for NAT64. For more on NAT64, refer to Juniper NAT64 Overview.
NAT64 allows communication between IPv6 and IPv4 devices by translating IPv6 addresses to IPv4 addresses and vice versa. On Juniper SRX devices, the device's forwarding mode is crucial in how the device processes traffic.
* Flow-based forwarding mode:
* Correct: Option C: For IPv4 traffic in NAT64 configurations, SRX devices should be in flow- based forwarding mode. Flow-based mode means that the device inspects traffic sessions and tracks state, which is essential for proper NAT64 operations. This mode enables the device to monitor and translate between IPv4 and IPv6 protocols dynamically while maintaining session states.
* Correct: Option D: Similarly, for IPv6 traffic, the SRX device should also be in flow-based mode. Flow-based mode ensures the SRX tracks the IPv6-to-IPv4 translations properly by preserving the state of each connection, ensuring consistent NAT64 operations.
* Packet-based forwarding modeacket-based mode is not used for NAT64 operations because it does not provide stateful inspection, which is required for NAT64 to function correctly. Hence, options A and B are incorrect.
Juniper References:
* Juniper NAT64 Documentation: Discusses how NAT64 functions on SRX devices and specifies the requirement of flow-based mode for both IPv4 and IPv6 traffic when translating between these protocols.

NEW QUESTION # 57
Exhibit:

Your company uses SRX Series devices to establish an IPsec VPN that connects Site-1 and the HQ networks.
You want VoIP traffic to receive priority over data traffic when it is forwarded across the VPN.
Which three actions should you perform in this scenario? (Choose three.)
  • A. Enable the multi-sa parameter to enable two separate IPsec SAs for the VoIP and data traffic.
  • B. Create a firewall filter that identifies VoIP traffic and associates it with the correct forwarding class.
  • C. Configure CoS forwarding classes and scheduling parameters.
  • D. Enable next-hop tunnel binding.
  • E. Enable the copy-outer-dscp parameter so that DSCP header values are copied to the tunneled packets.
Answer: B,C,D
Explanation:
In this scenario, you are prioritizing VoIP traffic over data traffic across an IPsec VPN. Here are the necessary actions:
* Enable next-hop tunnel binding (Answer A): This is required to bind the VPN traffic to a specific tunnel interface (like st0.0). It allows differentiated forwarding behavior (like prioritizing VoIP) for specific traffic types.
Command Example:
bash
Copy code
set interfaces st0.0 next-hop-tunnel-service
* Create a firewall filter (Answer B): The filter will match VoIP traffic based on criteria such as DSCP marking or ports (like port 5060 for SIP). Once identified, the traffic will be associated with a forwarding class, ensuring it gets prioritized.
Command Example:
bash
Copy code
set firewall family inet filter VoIP-Filter term VoIP from protocol udp set firewall family inet filter VoIP-Filter term VoIP from port 5060 set firewall family inet filter VoIP-Filter term VoIP then forwarding-class voice
* Configure CoS (Class of Service) forwarding classes (Answer C): CoS parameters define how the SRX handles different types of traffic (scheduling, shaping, etc.). VoIP traffic must be assigned a higher priority than data.
Command Example:
bash
Copy code
set class-of-service forwarding-classes voice
set class-of-service forwarding-classes data
set class-of-service schedulers voice_scheduler transmit-rate percent 50 These configurations ensure that VoIP traffic is identified, classified, and forwarded with priority.

NEW QUESTION # 58
You have deployed automated threat mitigation using Security Director with Policy Enforcer, Juniper ATP Cloud, SRX Series devices, Forescout, and third-party switches. In this scenario, which device is responsible for communicating directly to the third-party switches when infected hosts need to be blocked?
  • A. SRX Series device
  • B. Juniper ATP Cloud
  • C. Forescout
  • D. Policy Enforcer
Answer: D
Explanation:
Policy Enforcer receives these policies and translates them into device-specific commands. It then communicates with the third-party switches (using protocols like SNMP, RADIUS, or vendor- specific APIs) to enforce those commands, such as blocking the infected hosts' MAC addresses or port access.
Centralized Enforcement: Policy Enforcer acts as the central point of enforcement for Security Director policies, ensuring consistent security across the network. Multi-Vendor Support: It can interact with a wide range of network devices, including switches from different vendors.
Automation: Policy Enforcer automates the policy enforcement process, enabling rapid response to threats.

NEW QUESTION # 59
Referring to the exhibit, which two statements are correct? (Choose two.)


  • A. This device is the active node for SRG1.
  • B. The ge-0/0/3.0 and ge-0/0/4.0 interfaces are not active and will not respond to ARP requests to the virtual IP MAC address.
  • C. The ge-0/0/3.0 and ge-0/0/4.0 interfaces are active and will respond to ARP requests to the virtual IP MAC address.
  • D. This device is the backup node for SRG1.
Answer: B,D
Explanation:
The interfaces are active and respond to ARP for virtual IP as long as the node is the primary or active node in the SRG group. This ensures high availability and proper traffic forwarding. For information, refer to Juniper SRX HA Documentation.
The exhibit shows information about a chassis cluster and its services redundancy group (SRG1).
The exhibit indicates that this SRX device is in the backup role for SRG1. The status: BACKUP field confirms that this device is currently in a standby role and is not the active node for the services redundancy group.
Since the device is in the backup role, the interfaces ge-0/0/3.0 and ge-0/0/4.0 will not respond to ARP requests for the virtual IP's MAC address. Only the active node's interfaces respond to ARP requests in a chassis cluster configuration.

NEW QUESTION # 60
......
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