Free Juniper JN0-636 Exam Actual Questions

The questions for JN0-636 were last updated On Mar 28, 2025

At ValidExamDumps, we consistently monitor updates to the Juniper JN0-636 exam questions by Juniper. Whenever our team identifies changes in the exam questions,exam objectives, exam focus areas or in exam requirements, We immediately update our exam questions for both PDF and online practice exams. This commitment ensures our customers always have access to the most current and accurate questions. By preparing with these actual questions, our customers can successfully pass the Juniper Security, Professional exam on their first attempt without needing additional materials or study guides.

Other certification materials providers often include outdated or removed questions by Juniper in their Juniper JN0-636 exam. These outdated questions lead to customers failing their Juniper Security, Professional exam. In contrast, we ensure our questions bank includes only precise and up-to-date questions, guaranteeing their presence in your actual exam. Our main priority is your success in the Juniper JN0-636 exam, not profiting from selling obsolete exam questions in PDF or Online Practice Test.

 

Question No. 1

Exhibit:

Referring to the exhibit, which two statements are correct?

Show Answer Hide Answer
Correct Answer: B, C

Referring to the exhibit, the following statements are correct:

B) All of the entries are command and control entries. Command and control entries are dynamic addresses that represent the IP addresses of servers that are used by malware to communicate with infected hosts. The SRX Series device can block or log the traffic to or from these IP addresses based on the security policies.The exhibit shows that all of the entries have the category DC/1, which stands for command and control1.

C) All of the entries are Dshield entries. Dshield is a feed source that provides a list of IP addresses that are associated with malicious activities, such as scanning, spamming, or attacking. The SRX Series device can download the Dshield feed and use it to populate the dynamic address entries.The exhibit shows that all of the entries have the feed dshield, which indicates that they are from the Dshield feed source2.

The other statements are incorrect because:

A) All of the entries are not a threat level 8, but a threat level 10. The threat level is a numeric value that indicates the severity of the threat associated with a dynamic address entry. The higher the threat level, the more dangerous the threat. The SRX Series device can use the threat level to prioritize the actions for the dynamic address entries. The exhibit shows that all of the entries have the cc CN, which stands for country code China. According to the Juniper documentation, the country code China has a threat level of 10, which is the highest.

D) All of the entries are not a threat level 10, but they are. See the explanation for option A.


Understanding Dynamic Address Categories

Understanding Dynamic Address Feed Sources

[Understanding Dynamic Address Threat Levels]

Question No. 2

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 ?

Show Answer Hide Answer
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.


Policy Enforcer Overview

EX Series Switches Overview

SRX Series Services Gateways Overview

[Juniper ATP Appliance Overview]

Question No. 3

Exhibit:

You are troubleshooting a firewall filter shown in the exhibit that is intended to log all traffic and block

only inbound telnet traffic on interface ge-0/0/3.

How should you modify the configuration to fulfill the requirements?

Show Answer Hide Answer
Correct Answer: A

To modify the configuration to fulfill the requirements, you need to modify the log-all term to add the next term action. The other options are incorrect because:

B) Deleting the log-all term would prevent logging all traffic, which is one of the requirements.The log-all term matches all traffic from any source address and logs it to the system log file1.

C) Adding a term before the log-all term that blocks Telnet would also prevent logging all traffic, because the log-all term would never be reached. The firewall filter evaluates the terms in sequential order and applies the first matching term.If a term before the log-all term blocks Telnet, then the log-all term would not match any traffic and no logging would occur2.

D) Applying a firewall filter to the loopback interface that blocks Telnet traffic would not block inbound Telnet traffic on interface ge-0/0/3, which is another requirement. The loopback interface is a logical interface that is always up and reachable.It is used for routing and management purposes, not for filtering traffic on physical interfaces3.

Therefore, the correct answer is A. You need to modify the log-all term to add the next term action. The next term action instructs the firewall filter to continue evaluating the subsequent terms after matching the current term.This way, the log-all term would log all traffic and then proceed to the block-telnet term, which would block only inbound Telnet traffic on interface ge-0/0/34. To modify the log-all term to add the next term action, you need to perform the following steps:

Enter the configuration mode: user@host> configure

Navigate to the firewall filter hierarchy: user@host# edit firewall family inet filter block-telnet

Add the next term action to the log-all term: user@host# set term log-all then next term

Commit the changes: user@host# commit


log (Firewall Filter Action)

Firewall Filter Configuration Overview

loopback (Interfaces)

next term (Firewall Filter Action)

Question No. 4

Exhibit

You are implementing filter-based forwarding to send traffic from the 172.25.0.0/24 network through ISP-1 while sending all other traffic through your connection to ISP-2. Your ge-0/0/1 interface connects to two networks, including the 172.25.0.0/24 network. You have implemented the configuration shown in the exhibit. The traffic from the 172.25.0.0/24 network is being forwarded as expected to 172.20.0.2, however traffic from the other network (172.25.1.0/24) is not being forwarded to the upstream 172.21.0.2 neighbor.

In this scenario, which action will solve this problem?

Show Answer Hide Answer
Correct Answer: C

The exhibit shows the configuration of filter-based forwarding on an SRX Series device. Filter-based forwarding is a feature that allows the device to use firewall filters to direct traffic to different routing instances based on the match criteria. In this scenario, the device has two routing instances - ISP-1 and ISP-2 - and two firewall filters - FBF and FBF-ISP-1. The FBF filter is applied to the ge-0/0/1 interface as an input filter. The FBF filter has one term that matches the traffic from the 172.25.0.0/24 network and directs it to the ISP-1 routing instance. The ISP-1 routing instance has a static route to the next hop 172.20.0.2. The FBF-ISP-1 filter is applied to the ge-0/0/0 interface as an output filter. The FBF-ISP-1 filter has one term that matches the traffic to the 172.20.0.2 next hop and sets the forwarding class to expedited-forwarding.

The problem in this scenario is that the traffic from the other network (172.25.1.0/24) is not being forwarded to the upstream 172.21.0.2 neighbor. This is because the FBF filter does not have a term that accepts the traffic from the 172.25.1.0/24 network. The FBF filter only has one term that matches the traffic from the 172.25.0.0/24 network and directs it to the ISP-1 routing instance. The traffic from the 172.25.1.0/24 network does not match this term and is therefore discarded by the implicit deny action at the end of the filter. The traffic from the 172.25.1.0/24 network should be forwarded to the ISP-2 routing instance, which has a static default route to the next hop 172.21.0.2.

To solve this problem, you must add another term to the FBF filter to accept the traffic from the 172.25.1.0/24 network. This term should have the action accept, which means that the traffic will be forwarded according to the routing table of the master routing instance. The master routing instance has a static default route to the ISP-2 routing instance, which in turn has a static default route to the next hop 172.21.0.2. By adding this term, the traffic from the 172.25.1.0/24 network will be forwarded to the upstream 172.21.0.2 neighbor as expected.

The configuration of the new term in the FBF filter could look something like this:

[edit firewall family inet filter FBF] term 2 { from { source-address { 172.25.1.0/24; } } then { accept; } }


Question No. 5

Exhibit

You have configured the SRX Series device to switch packets for multiple directly connected hosts that are within the same broadcast domain However, the traffic between two hosts in the same broadcast domain are not matching any security policies

Referring to the exhibit, what should you do to solve this problem?

Show Answer Hide Answer