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Juniper JN0-637 Exam Questions

Exam Name: Security, Professional
Exam Code: JN0-637 JNCIP-SEC
Related Certification(s): Juniper Junos Security Certification
Certification Provider: Juniper
Actual Exam Duration: 90 Minutes
Number of JN0-637 practice questions in our database: 115 (updated: Mar. 23, 2025)
Expected JN0-637 Exam Topics, as suggested by Juniper :
  • Topic 1: 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 2: Logical Systems and Tenant Systems: This topic of the exam explores the concepts and functionalities of logical systems and tenant systems.
  • Topic 3: Layer 2 Security: It covers Layer 2 Security concepts and requires candidates to configure or monitor related scenarios.
  • Topic 4: Advanced Network Address Translation (NAT): This section evaluates networking professionals' expertise in advanced NAT functionalities and their ability to manage complex NAT scenarios.
  • 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: 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 8: Automated Threat Mitigation: This topic covers Automated Threat Mitigation concepts and emphasizes implementing and managing threat mitigation strategies.
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Shaniqua

13 days ago
Success on the Juniper Security exam! Pass4Success made my short prep time count.
upvoted 0 times
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Lina

1 months ago
Finally certified! Pass4Success's questions aligned perfectly with the actual exam.
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Una

2 months ago
Passed JNCSP-SEC today! Pass4Success's practice tests were incredibly relevant.
upvoted 0 times
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Tess

2 months ago
I passed the Juniper Security, Professional exam, and the Pass4Success practice questions were invaluable. One question that caught me off guard was related to Advanced Policy-Based Routing (APBR), asking about the use of route maps in traffic steering. I wasn't entirely sure of the syntax, but I managed to pass.
upvoted 0 times
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Tomas

3 months ago
Successfully passing the Juniper Security, Professional exam was a great relief, and the Pass4Success practice questions were a big part of my study routine. A memorable question was about Multinode High Availability (HA), specifically the role of Virtual Chassis in ensuring redundancy. I hesitated on the specifics, but my preparation saw me through.
upvoted 0 times
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Estrella

3 months ago
Exam was tough, but I made it! Pass4Success really helped me prepare efficiently.
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Arlene

4 months ago
I am thrilled to have passed the Juniper Security, Professional exam, and I owe a lot to the Pass4Success practice questions. During the exam, I faced a question on Automated Threat Mitigation, which asked about the integration of threat intelligence feeds into security policies. I wasn't sure about the exact configuration steps, but my overall knowledge helped me succeed.
upvoted 0 times
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Denise

4 months ago
Aced the JNCSP-SEC! Pass4Success's materials were a lifesaver for quick prep.
upvoted 0 times
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Lashawn

4 months ago
Passing the Juniper Security, Professional exam was a significant achievement for me, thanks in part to the Pass4Success practice questions. One challenging question was about Layer 2 Security, specifically focusing on the role of MACsec in securing Ethernet frames. I had to think hard about the encryption process, but I managed to pass regardless.
upvoted 0 times
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Xochitl

5 months ago
Great information. Any final thoughts on your exam experience?
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Monte

5 months ago
I recently cleared the Juniper Security, Professional exam, and the practice questions from Pass4Success were a great help. A tricky question I encountered involved Advanced Network Address Translation (NAT), asking about the differences between source NAT and destination NAT in a dual-homed environment. I wasn't entirely confident in my answer, but it seems my preparation paid off.
upvoted 0 times
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Markus

5 months ago
Overall, the exam was challenging but fair. I'm grateful to Pass4Success for providing relevant exam questions that helped me prepare efficiently. Their materials were spot-on!
upvoted 0 times
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Blair

5 months ago
Just passed the Juniper Certified: Security, Professional exam! Thanks Pass4Success for the spot-on practice questions.
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Jade

5 months ago
Having just passed the Juniper Security, Professional exam, I can say that the Pass4Success practice questions were instrumental in my preparation. One question that stood out was about configuring Advanced IPsec VPNs, specifically regarding the use of Perfect Forward Secrecy (PFS) in phase 2 negotiations. I was a bit unsure about the exact benefits of PFS, but thankfully, my overall understanding was enough to get me through.
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Free Juniper JN0-637 Exam Actual Questions

Note: Premium Questions for JN0-637 were last updated On Mar. 23, 2025 (see below)

Question #1

You are using trace options to troubleshoot a security policy on your SRX Series device.

Referring to the exhibit, which two statements are true? (Choose two.)

Reveal Solution Hide Solution
Correct Answer: A, D

Question #2

Referring to the exhibit, which two statements are true ?

Reveal Solution Hide Solution
Correct Answer: B, D

Question #3

Click the Exhibit button.

You have configured a CoS-based VPN that is not functioning correctly.

Referring to the exhibit, which action will solve the problem?

Reveal Solution Hide Solution
Correct Answer: D

Comprehensive Detailed Step-by-Step Explanation with All Juniper Security Reference

Understanding the Problem:

A CoS-based VPN has been configured but is not functioning correctly.

The exhibit shows that under the class-of-service configuration, six forwarding classes are defined.

Forwarding Classes in the Exhibit:

best-effort

ef-class

af-class

network-control

res-class

web-data

Juniper CoS-Based VPN Limitations:

Maximum Number of Forwarding Classes: In CoS-based VPNs (Layer 3 VPNs), there is a limitation on the number of forwarding classes that can be used.

Supported Forwarding Classes: Only up to four forwarding classes are supported in an L3VPN for CoS purposes.

Additional Reference:

Juniper TechLibrary:

'Configuring Class of Service for MPLS VPNs' - Discusses CoS considerations and limitations in MPLS L3VPN deployments.

Source: Juniper TechLibrary - CoS for VPNs

Juniper Networks Day One Book:

'Deploying MPLS Layer 3 VPNs' - Provides insights into CoS limitations and best practices for VPN deployments.


Juniper Networks Documentation:

'For Layer 3 VPNs, the maximum number of forwarding classes supported is four. If you configure more than four forwarding classes, CoS functionality might not work as expected.'

Source: Juniper TechLibrary - Class of Service Limitations in VPNs

Issue Identification:

The VPN is not functioning correctly because it exceeds the maximum number of supported forwarding classes for a CoS-based VPN.

Solution:

Option D: You must delete one forwarding class.

By reducing the number of forwarding classes to four or fewer, the CoS-based VPN will comply with the limitations and function correctly.

Why Other Options Are Incorrect:

Option A: You must change the loss priorities of the forwarding classes to low.

Changing loss priorities does not affect the limitation on the number of forwarding classes.

The issue is not related to loss priority settings but to the number of forwarding classes.

Option B: You must change the code point for the DB-data forwarding class to 10000.

There is no forwarding class named DB-data in the exhibit.

Changing a code point does not address the issue of exceeding the maximum number of forwarding classes.

Option C: You must use inet precedence instead of DSCP.

Switching from DSCP to IP Precedence does not resolve the issue of having too many forwarding classes.

The limitation on the number of forwarding classes remains the same regardless of the classification method used.

Conclusion:

To resolve the issue with the CoS-based VPN not functioning correctly due to exceeding the maximum number of forwarding classes, you must delete forwarding classes to reduce the total number to four or fewer.

Question #4

Which encapsulation type must be configured on the lt-0/0/0 logical units for an interconnect

logical systems VPLS switch?

Reveal Solution Hide Solution
Correct Answer: C

Question #5

Referring to the exhibit, which two statements are true ?

Reveal Solution Hide Solution
Correct Answer: B, D

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