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Juniper JN0-637 Exam Syllabus Topics:

Topic	Details
Topic 1	Automated Threat Mitigation: This topic covers Automated Threat Mitigation concepts and emphasizes implementing and managing threat mitigation strategies.
Topic 2	Logical Systems and Tenant Systems: This topic of the exam explores the concepts and functionalities of logical systems and tenant systems.
Topic 3	Advanced Network Address Translation (NAT): This section evaluates networking professionals' expertise in advanced NAT functionalities and their ability to manage complex NAT scenarios.
Topic 4	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 5	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 6	Advanced Policy-Based Routing (APBR): This topic emphasizes on advanced policy-based routing concepts and practical configuration or monitoring tasks.
Topic 7	Layer 2 Security: It covers Layer 2 Security concepts and requires candidates to configure or monitor related scenarios.

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Juniper Security, Professional (JNCIP-SEC) Sample Questions (Q23-Q28):

NEW QUESTION # 23
Which two statements are correct about the ICL in an active/active mode multinode HA environment? (Choose two.)

A. The ICL uses a separate routing instance to communicate with remote multinode HA peers.
B. The ICL traffic can be encrypted.
C. The ICL is strictly a Layer 2 interface.
D. The ICL is the local device management interface in a multinode HA environment.

Answer: A,B

NEW QUESTION # 24
An ADVPN configuration has been verified on both the hub and spoke devices and it seems fine. However, OSPF is not functioning as expected.

Referring to the exhibit, which two statements under interface st0.0 on both the hub and spoke devices would solve this problem? (Choose two.)

A. passive
B. interface-type p2p
C. interface-type p2mp
D. dynamic-neighbors

Answer: C,D

Explanation:
For ADVPN with OSPF, using a point-to-multipoint (p2mp) interface type and enabling dynamic-neighbors are crucial. This configuration allows dynamic discovery of neighbors and the establishment of tunnels. For more information, refer to Juniper ADVPN Configuration Guide.
In the ADVPN configuration, OSPF isn't functioning as expected due to the interface configuration on st0.0.
Here are the adjustments needed:
* Interface Type p2mp (Answer A): OSPF requires that the tunnel interface be set to p2mp (point-to- multipoint) to allow OSPF to communicate with multiple dynamic neighbors over the ADVPN tunnels.
Command Example:
bash
set interfaces st0.0 family inet ospf interface-type p2mp
* Dynamic Neighbors (Answer B): The dynamic neighbors statement allows OSPF to discover and communicate with dynamically established spokes in an ADVPN environment. This is essential for ADVPN to function properly since the tunnel endpoints are not static.
Command Example:
bash
set protocols ospf area 0.0.0.0 interface st0.0 dynamic-neighbors
These settings ensure OSPF properly functions over dynamically created ADVPN tunnels.

NEW QUESTION # 25
You are deploying OSPF over IPsec with an SRX Series device and third-party device using GRE.
Which two statements are correct? (Choose two.)

A. The GRE interface must be configured under the OSPF protocol.
B. Overlapping addresses are allowed between remote networks.
C. The OSPF protocol must be enabled under the VPN zone.
D. The GRE interface should use lo0 as endpoints.

Answer: A,D

Explanation:
Comprehensive Detailed Step-by-Step Explanation with All Juniper Security References Understanding the Scenario:
* Objective: Deploy OSPF over IPsec between an SRX Series device and a third-party device using GRE tunnels.
* Components Involved:
* GRE (Generic Routing Encapsulation): Encapsulates packets to allow routing protocols like OSPF to run over IPsec tunnels.
* IPsec: Provides security for the GRE tunnels.
* OSPF: Dynamic routing protocol used over the GRE tunnel.
Option A: The GRE interface should use lo0 as endpoints.
* Explanation:
* Using the loopback interface (lo0) as the source and destination endpoints for GRE tunnels is a common best practice.
* Advantages:
* Stability: Loopback interfaces are always up, ensuring the GRE tunnel remains operational even if physical interfaces fail.
* Reachability: Provides consistent endpoint IP addresses for GRE tunnels.
* Configuration:
* Assign IP addresses to lo0 interfaces on both devices.
* Configure GRE tunnels to use these lo0 IP addresses as source and destination.

NEW QUESTION # 26
Exhibit

Which two statements are correct about the output shown in the exhibit? (Choose two.)

A. The packet matches the default security policy.
B. The packet is processed in the first path packet flow.
C. The packet matches a configured security policy.
D. The packet is processed as host inbound traffic.

Answer: A,D

NEW QUESTION # 27
You want to identify potential threats within SSL-encrypted sessions without requiring SSL proxy to decrypt the session contents.
Which security feature achieves this objective?

A. DNS security
B. encrypted traffic insights
C. infected host feeds
D. Secure Web Proxy

Answer: B

NEW QUESTION # 28
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