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Juniper JN0-637 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	Advanced Policy-Based Routing (APBR): This topic emphasizes on advanced policy-based routing concepts and practical configuration or monitoring tasks.
Topic 3	Layer 2 Security: It covers Layer 2 Security concepts and requires candidates to configure or monitor related 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.

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Juniper Security, Professional (JNCIP-SEC) Sample Questions (Q27-Q32):

NEW QUESTION # 27
Exhibit

You are using traceoptions to verify NAT session information on your SRX Series device.
Referring to the exhibit, which two statements are correct? (Choose two.)

A. This is the last packet in the session.
B. The SRX Series device is performing only source NAT on this session.
C. The SRX Series device is performing both source and destination NAT on this session.
D. This is the first packet in the session.

Answer: A,C

NEW QUESTION # 28
Exhibit

You are not able to ping the default gateway of 192.168 100 1 (or your network that is located on your SRX Series firewall.
Referring to the exhibit, which two commands would correct the configuration of your SRX Series device? (Choose two.)

Answer: A,B

NEW QUESTION # 29
Exhibit:

You are having problems configuring advanced policy-based routing.
What should you do to solve the problem?

A. Remove the default static route from the main instance configuration.
B. Apply a policy to the APBR RIB group to only allow the exact routes you need.
C. Change the routing instance to a virtual router instance.
D. Change the routing instance to a forwarding instance.

Answer: C

Explanation:
In this scenario, there is an issue with configuring APBR because the routing instance type may not be appropriate for handling the required routing functionality. In Juniper SRX devices,forwarding instancesare used for simple path selection but do not have full routing capabilities like virtual router instances.
To fully support advanced policy-based routing (APBR), it is recommended to use avirtual routerinstance, which provides full routing functionalities, including route tables and advanced routing protocols. Forwarding instances are limited in this respect and cannot handle the full range of routing tasks needed by APBR.
Step-by-Step Solution:
* Change the Routing Instance Type:
* Convert the routing instance from a forwarding instance to a virtual router instance, which supports full routing and is compatible with APBR:
bash
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set routing-instances <instance-name> instance-type virtual-router
* Configure the Static Routes in the Virtual Router:
* After changing the instance type, ensure that all necessary routes are configured within the new virtual router instance:
bash
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set routing-instances <instance-name> routing-options static route 0.0.0.0/0 next-hop <next-hop-address> Juniper Security Reference:
* Virtual Router Instances: Virtual routers are necessary for advanced routing tasks, including APBR.
They provide full routing capabilities, unlike forwarding instances which are used for basic routing needs. Reference: Juniper Virtual Router Documentation.
By switching to a virtual router instance, you enable full routing functionality for APBR to work as expected.

NEW QUESTION # 30
Which two statements are true about the procedures the Junos security device uses when handling traffic destined for the device itself? (Choose two.)

A. If the received packet is addressed to the ingress interface, then the device first performs a security policy evaluation for the junos-host zone.
B. If the received packet is destined for an interface other than the ingress interface, then the device performs a security policy evaluation based on the ingress and egress zone.
C. If the received packet is destined for an interface other than the ingress interface, then the device performs a security policy evaluation for the junos-host zone.
D. If the received packet is addressed to the ingress interface, then the device first examines the host- inbound-traffic configuration for the ingress interface and zone.

Answer: C,D

Explanation:
When handling traffic that is destined for itself, the SRX examines the host-inbound-trafficconfiguration for the ingress interface and the associated security zone. It evaluates whether the traffic should be allowed based on this configuration. Traffic not addressed to the ingress interface is handled based on security policies within the junos-host zone, which applies to traffic directed to the SRX itself. For more details, refer to Juniper Host Inbound Traffic Documentation.
When handling traffic that is destined for the SRX device itself (also known ashost-bound traffic), the SRX follows a specific process to evaluate the traffic and apply the appropriate security policies. Thejunos-host zone is a special security zone used for managing traffic destined for the device itself, such as management traffic (SSH, SNMP, etc.).
* Explanation of Answer B (Packet to a Different Interface):
* If the packet isdestined for an interface other than the ingress interface, the SRX performs a security policy evaluation specifically for thejunos-hostzone. This ensures that management or host-bound traffic is evaluated according to the security policies defined for that zone.
* Explanation of Answer C (Packet to the Ingress Interface):
* If the packet is addressed to theingress interface, the device first checks thehost-inbound-traffic configurationfor the ingress interface and zone. This configuration determines whether certain types of traffic (such as SSH, HTTP, etc.) are allowed to reach the device on that specific interface.
Step-by-Step Handling of Host-Bound Traffic:
* Host-Inbound Traffic: Define which services are allowed to the SRX device itself:
bash
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set security zones security-zone <zone-name> host-inbound-traffic system-services ssh
* Security Policy for junos-host: Ensure policies are defined for managing traffic destined for the SRX device:
bash
Copy code
set security policies from-zone <zone-name> to-zone junos-host policy allow-ssh match source-address any set security policies from-zone <zone-name> to-zone junos-host policy allow-ssh match destination-address any Juniper Security Reference:
* Junos-Host Zone: This special zone handles traffic destined for the SRX device, including management traffic. Security policies must be configured to allow this traffic. Reference: Juniper Networks Host-Inbound Traffic Documentation.

NEW QUESTION # 31
You are attempting to ping an interface on your SRX Series device, but the ping is unsuccessful.
What are three reasons for this behavior? (Choose three.)

A. The ping traffic is matching a firewall filter.
B. The device has J-Web enabled.
C. The interface has multiple logical units configured.
D. The interface's host-inbound-traffic security zone configuration does not permit ping
E. The interface is not assigned to a security zone.

Answer: A,D,E

Explanation:
A: The interface is not assigned to a security zone.
* Explanation: SRX Series devices rely heavily on security zones for traffic management. If an interface isn't assigned to a zone, the device won't know how to handle traffic arriving on that interface, including ping requests (ICMP echo requests).

NEW QUESTION # 32
......

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Pass Guaranteed Quiz Fantastic Juniper - JN0-637 - Security, Professional (JNCIP-SEC) Valid Test Voucher

Juniper JN0-637 Exam Syllabus Topics:

2025 JN0-637 Valid Test Voucher 100% Pass | High-quality Exam Dumps Security, Professional (JNCIP-SEC) Pdf Pass for sure

Juniper Security, Professional (JNCIP-SEC) Sample Questions (Q27-Q32):

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