[Aug-2026] Get 100% Real JN0-637 Free Online Practice Test [Q41-Q58]

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[Aug-2026] Get 100% Real JN0-637 Free Online Practice Test

BEST Verified Juniper JN0-637 Exam Questions (2026)

Juniper JN0-637 Exam Syllabus Topics:

Topic	Details
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	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 3	Automated Threat Mitigation: This topic covers Automated Threat Mitigation concepts and emphasizes implementing and managing threat mitigation strategies.
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	Layer 2 Security: It covers Layer 2 Security concepts and requires candidates to configure or monitor related scenarios.

NO.41 You want to create a connection for communication between tenant systems without using physical revenue ports on the SRX Series device.
What are two ways to accomplish this task? (Choose two.)

Use a point-to-point logical tunnel.

Use a secure wire.

Use an interconnect VPLS switch.

Use an external router.

NO.42 Which two statements are correct about mixed mode? (Choose two.)

Layer 2 and Layer 3 interfaces can use the same security zone.

IRB interfaces can be used to route traffic.

Layer 2 and Layer 3 interfaces can use separate security zones.

IRB interfaces cannot be used to route traffic.

NO.43 You want to deploy two vSRX instances in different public cloud providers to provide redundant security services for your network. Layer 2 connectivity between the two vSRX instances is not possible.
What would you configure on the vSRX instances to accomplish this task?

Chassis cluster

Secure wire

Multinode HA

Virtual chassis

NO.44 Exhibit

You areasked to establish an IBGP peering between the SRX Series device and the router, but the session is not being established. In the security flow trace on the SRX device, packet drops are observed as shown in the exhibit.
What is the correct action to solve the problem on the SRX device?

Create a firewall filter to accept the BGP traffic

Configure destination NAT for BGP traffic.

Add BGP to the Allowed host-inbound-traffic for the interface

Modify the security policy to allow the BGP traffic.

NO.45 Which two statements are true regarding NAT64? (Choose two.)

An SRX Series device should be in packet-based forwarding mode for IPv4.

An SRX Series device should be in packet-based forwarding mode for IPv6.

An SRX Series device should be in flow-based forwarding mode for IPv4.

An SRX Series device should be in flow-based forwarding mode for IPv6.

NO.46 You are using AutoVPN to deploy a hub-and-spoke VPN to connect your enterprise sites.
In this scenario, which two statements are true? (Choose two.)

New spoke sites can be added without explicit configuration on the hub.

Direct spoke-to-spoke tunnels can be established automatically.

All spoke-to-spoke IPsec communication will pass through the hub.

AutoVPN requires OSPF over IPsec to discover and add new spokes.

NO.47 Exhibit:

You are configuring NAT64 on your SRX Series device. You have committed the configuration shown in the exhibit. Unfortunately, the communication with the 10.10.201.10 server is not working. You have verified that the interfaces, security zones, and security policies are all correctly configured.
In this scenario, which action will solve this issue?

Configure source NAT to translate return traffic from IPv4 address to the IPv6 address of your source device.

Configure proxy-ARP on the external IPv4 interface for the 10.10.201.10/32 address.

Configure proxy-NDP on the IPv6 interface for the 2001:db8::1/128 address.

Configure destination NAT to translate return traffic from the IPv4 address to the IPv6 address of your source device.

NO.48 You have cloud deployments in Azure, AWS, and your private cloud. You have deployed multicloud using security director with policy enforcer to. Which three statements are true in this scenario? (Choose three.)

You can run Juniper ATP scans only on traffic from your private cloud.

You can run Juniper ATP scans for all three domains.

You must secure the policies individually by domain.

The Policy Enforcer is able to flag infected hosts in all three domains.

You can simultaneously manage the security policies in all three domains.

NO.49 You configure two Ethernet interfaces on your SRX Series device as Layer 2 interfaces and add them to the same VLAN. The SRX is using the default L2-learning setting. You do not add the interfaces to a security zone.
Which two statements are true in this scenario? (Choose two.)

You are unable to apply stateful security features to traffic that is switched between the two interfaces.

You are able to apply stateful security features to traffic that enters and exits the VLAN.

The interfaces will not forward traffic by default.

You cannot add Layer 2 interfaces to a security zone.

NO.50 Exhibit

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

The source address is translated.

The packet is an SSH packet

The packet matches a user-configured policy

The destination address is translated.

NO.51 Exhibit:

You have deployed an SRX Series device as shown in the exhibit. The devices in the Local zone have recently been added, but their SRX interfaces have not been configured. You must configure the SRX to meet the following requirements:
Devices in the 10.1.1.0/24 network can communicate with other devices in the same network but not with other networks or the SRX.
You must be able to apply security policies to traffic flows between devices in the Local zone.
Which three configuration elements will be required as part of your configuration? (Choose three.)

set security zones security-zone Local interfaces ge-0/0/1.0

set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan-members 10

set protocols l2-learning global-mode switching

set protocols l2-learning global-mode transparent-bridge

set security zones security-zone Local interfaces irb.10

NO.52 You want to enforce I DP policies on HTTP traffic.
In this scenario, which two actions must be performed on your SRX Series device? (Choose two)

Choose an attacks type in the predefined-attacks-group HTTP-All.

Disable screen options on the Untrust zone.

Specify an action of None.

Match on application junos-http.

NO.53 You want to bypass IDP for traffic destined to social media sites using APBR, but it is not working and IDP is dropping the session.
What are two reasons for this problem? (Choose two.)

The session did not properly reclassify midstream to the correct APBR rule.

IDP disable is not configured on the APBR rule.

The application services bypass is not configured on the APBR rule.

The APBR rule does a match on the first packet.

* Explanation of Answer A (Session Reclassification):
* APBR (Advanced Policy-Based Routing) requires the session to be classified based on the specified rule, which can change midstream as additional packets are processed. If the session was already established before the APBR rule took effect, the traffic may not be correctly reclassified to match the new APBR rule, leading to IDP (Intrusion Detection and Prevention) processing instead of being bypassed. This can occur especially when the session was already established before the rule change.
* Explanation of Answer C (Application Services Bypass):
* For APBR to work and bypass the IDP service, theapplication services bypassmust be explicitly configured. Without this configuration, the APBR rule may redirect the traffic, but the IDP service will still inspect and potentially drop the traffic. This is especially important for traffic destined for specific sites like social media platforms where bypassing IDP is desired.
Example configuration for bypassing IDP services:
bash
Copy code
set security forwarding-options advanced-policy-based-routing profile <profile-name> application-services- bypass Step-by-Step Resolution:
* Reclassify the Session Midstream:
* If the traffic was already being processed before the APBR rule was applied, ensure that the session is reclassified by terminating the current session or ensuring the APBR rule is applied from the start.
Command to clear the session:
bash
Copy code
clear security flow session destination-prefix <ip-address>
* Configure Application Services Bypass:
* Ensure that the APBR rule includes the application services bypass configuration to properly bypass IDP or any other security services for traffic that should not be inspected.
Example configuration:
bash
Copy code
set security forwarding-options advanced-policy-based-routing profile <profile-name> application-services- bypass Juniper Security Reference:
* Session Reclassification in APBR: APBR requires reclassification of sessions in real-time to ensure midstream packets are processed by the correct rule. This is crucial when policies change dynamically or new rules are added.
* Application Services Bypass in APBR: This feature ensures that security services such as IDP are bypassed for traffic that matches specific APBR rules. This is essential for applications where performance is a priority and security inspection is not necessary.

NO.54 Exhibit:

Referring to the flow logs exhibit, which two statements are correct? (Choose two.)

The packet is dropped by the default security policy.

The packet is dropped by a configured security policy.

The data shown requires a traceoptions flag of host-traffic.

The data shown requires a traceoptions flag of basic-datapath.

NO.55 In a multinode HA environment, which service must be configured to synchronize between nodes?

Advanced policy-based routing

PKI certificates

IPsec VPN

IDP

NO.56 A user reports that a specific application is not working properly. This application makes multiple connection to the server and must have the same address every time from a pool and this behavior needs to be changed.
What would solve this problem?

Use STUN.

Use DNS doctoring.

Use the address-persistent parameter.

Use the persistent-nat parameter.

NO.57 Exhibit:

Referring to the exhibit, which technology would you use to provide communication between IPv4 host1 and ipv4 internal host

DS-Lite

NAT444

NAT46

full cone NAT

NO.58 Click the Exhibit button.

When attempting to enroll an SRX Series device to JATP, you receive the error shown in the exhibit.
What is the cause of the error?