Free Access to Juniper.JN0-637.v2025-05-21.q119 with Valid Practice Test (Page 3)

Question 6

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.Forescout
B.Policy Enforcer
C.Juniper ATP Cloud
D.SRX Series device

Question 7

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.)

A.Use an external router.
B.Use a secure wire.
C.Use an interconnect VPLS switch.
D.Use a point-to-point logical tunnel.

Question 8

Click the Exhibit button.

Which type of NAT is shown in the exhibit?

A.DS-Lite
B.NAT46
C.persistent NAT
D.NAT64

Question 9

You are required to secure a network against malware. You must ensure that in the event that a compromised host is identified within the network.
In this scenario after a threat has been identified, which two components are responsible for enforcing MAC-level infected host?

A.SRX Series device
B.Juniper ATP Appliance
C.Policy Enforcer
D.EX Series device

Correct Answer: C,D

You are required to secure a network against malware. You must ensure that in the event that a compromised host is identified within the network, the host is isolated from the rest of the network.
In this scenario, after a threat has been identified, the two components that are responsible for enforcing MAC-level infected host are:
C) Policy Enforcer. Policy Enforcer is a software solution that integrates with Juniper ATP Cloud and Juniper ATP Appliance to provide automated threat remediation across the network. Policy Enforcer can receive threat intelligence feeds from Juniper ATP Cloud or Juniper ATP Appliance and apply them to the security policies on the SRX Series devices and the EX Series devices. Policy Enforcer can also enforce MAC-level infected host, which is a feature that allows you to quarantine a compromised host by blocking its MAC address on the switch port. Policy Enforcer can communicate with the EX Series devices and instruct them to apply the MAC-level infected host policy to the infected host1.
D) EX Series device. EX Series devices are Ethernet switches that can provide Layer 2 and Layer 3 switching capabilities and security features. EX Series devices can integrate with Policy Enforcer and Juniper ATP Cloud or Juniper ATP Appliance to provide automated threat remediation across the network. EX Series devices can support MAC-level infected host, which is a feature that allows them to quarantine a compromised host by blocking its MAC address on the switch port. EX Series devices can receive instructions from Policy Enforcer and apply the MAC-level infected host policy to the infected host2.
The other options are incorrect because:
A) SRX Series device. SRX Series devices are high-performance firewalls that can provide Layer 3 and Layer 4 security features and integrate with Juniper ATP Cloud or Juniper ATP Appliance to provide advanced threat prevention. SRX Series devices can receive threat intelligence feeds from Juniper ATP Cloud or Juniper ATP Appliance and apply them to the security policies. However, SRX Series devices cannot enforce MAC-level infected host, which is a feature that requires Layer 2 switching capabilities and is supported by EX Series devices3.
B) Juniper ATP Appliance. Juniper ATP Appliance is a hardware solution that provides advanced threat prevention by detecting and blocking malware, ransomware, and other cyberattacks. Juniper ATP Appliance can analyze the network traffic and identify the compromised hosts based on their behavior and communication patterns. Juniper ATP Appliance can also send threat intelligence feeds to Policy Enforcer and SRX Series devices to enable automated threat remediation across the network. However, Juniper ATP Appliance cannot enforce MAC-level infected host, which is a feature that requires Layer 2 switching capabilities and is supported by EX Series devices.
Reference: Policy Enforcer Overview EX Series Switches Overview
SRX Series Services Gateways Overview [Juniper ATP Appliance Overview]

Question 10

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 for the junos-host zone.
C.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.
D.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.

Correct Answer: B,C

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
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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.

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