Juniper JN0-636 Exam

The security trace options configuration shown in the exhibit is committed to your SRX series firewall. The following statements are correct in this scenario:

B) Once the trace has generated 10 log files, older logs will be overwritten. The files option in the traceoptions statement specifies the maximum number of trace files to keep. When a trace file reaches its maximum size, it is renamed with a numeric suffix, such as kmd.0, kmd.1, and so on, until the maximum number of files is reached. Then the oldest trace file is overwritten by the newest one.In this case, the files option is set to 10, which means that the trace will generate 10 log files and then overwrite the older ones1.

D) The file debugger will be readable only by the user who committed this configuration. The file option in the traceoptions statement specifies the name of the trace file and the permissions for the file. The permissions can be either world-readable or owner-readable.In this case, the file option is set to debugger owner-readable, which means that the trace file will be named debugger and will be readable only by the user who committed the configuration1.

The other statements are incorrect because:

A) The file debugger will not be readable by all users, but only by the user who committed this configuration, as explained above.

C) The trace will not halt after generating 10 log files, but will continue to overwrite the older ones, as explained above.

traceoptions (Security)

The two statements about the configuration shown in the exhibit are correct are:

A) The remote IKE gateway IP address is 203.0.113.100. The exhibit shows that the address option under the gateway statement is set to 203.0.113.100, which specifies the IP address of the primary IKE gateway.The address option is used to configure the IP address or the hostname of the remote peer that has a static IP address1.

D) The remote peer is assigned a dynamic IP address. The exhibit shows that the dynamic option under the gateway statement is configured with various attributes, such as general-ikeid, ike-user-type, and user-at-hostname. The dynamic option is used to configure the identifier for the remote gateway with a dynamic IP address.The dynamic option also enables the SRX Series device to accept multiple connections from remote peers that have the same identifier2.

The other statements are incorrect because:

B) The local peer is not assigned a dynamic IP address, but a static IP address. The exhibit shows that the local-address option under the gateway statement is set to 192.0.2.100, which specifies the IP address of the local IKE gateway.The local-address option is used to configure the IP address of the local peer that has a static IP address1.

C) The local IKE gateway IP address is not 203.0.113.100, but 192.0.2.100, as explained above.

gateway (Security IKE)

dynamic (Security IKE)

To control access to network resources based on the identity of an authenticated device on the SRX Series firewalls, you need to perform the following steps:

A) Configure an end-user-profile that characterizes a device or set of devices. An end-user-profile is a device identity profile that contains a collection of attributes that are characteristics of a specific group of devices, or of a specific device, depending on the attributes configured in the profile. The end-user-profile must contain a domain name and at least one value in each attribute.The attributes include device-identity, device-category, device-vendor, device-type, device-os, and device-os-version1.You can configure an end-user-profile by using the Junos Space Security Director or the CLI2.

C) Reference the end-user-profile in the security policy. A security policy is a rule that defines the action to be taken for the traffic that matches the specified criteria, such as source and destination addresses, zones, protocols, ports, and applications. You can reference the end-user-profile in the source-end-user-profile field of the security policy to identify the traffic source based on the device from which the traffic issued.The SRX Series device matches the IP address of the device to the end-user-profile and applies the security policy accordingly3.You can reference the end-user-profile in the security policy by using the Junos Space Security Director or the CLI4.

E) Configure the authentication source to be used to authenticate the device. An authentication source is a system that provides the device identity information to the SRX Series device. The authentication source can be Microsoft Windows Active Directory or a third-party network access control (NAC) system. You need to configure the authentication source to be used to authenticate the device and to send the device identity information to the SRX Series device.The SRX Series device stores the device identity information in the device identity authentication table5.You can configure the authentication source by using the Junos Space Security Director or the CLI6.

The other options are incorrect because:

B) Referencing the end-user-profile in the security zone is not a valid step to control access to network resources based on the identity of an authenticated device. A security zone is a logical grouping of interfaces that have similar security requirements.You can reference the user role in the security zone to identify the user who is accessing the network resources, but not the end-user-profile7.

D) Applying the end-user-profile at the interface connecting the devices is also not a valid step to control access to network resources based on the identity of an authenticated device. You cannot apply the end-user-profile at the interface level, but only at the security policy level.The end-user-profile is not a firewall filter or a security policy, but a device identity profile that is referenced in the security policy1.

End User Profile Overview

Creating an End User Profile

source-end-user-profile

Creating Firewall Policy Rules

Understanding the Device Identity Authentication Table and Its Entries

Configuring the Authentication Source for Device Identity

user-role

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]

To solve the problem of the operator user being unable to save configuration files to a USB stick that is plugged into SRX, you need to add the system-control permission flag to the operations class. The other options are incorrect because:

A) Adding the floppy permission flag to the operations class is not sufficient or necessary to save configuration files to a USB stick. The floppy permission flag allows the user to access the floppy drive, but not the USB drive.The USB drive is accessed by the system permission flag, which is already included in the operations class1.

C) Adding the interface-control permission flag to the operations class is also not sufficient or necessary to save configuration files to a USB stick. The interface-control permission flag allows the user to configure and monitor interfaces, but not to save configuration files.The configuration permission flag, which is also already included in the operations class, allows the user to save configuration files1.

D) Adding the system permission flag to the operations class is redundant and ineffective to save configuration files to a USB stick. The system permission flag allows the user to access the system directory, which includes the USB drive.However, the operations class already has the system permission flag by default1. The problem is not the lack of system permission, but the lack of system-control permission.

Therefore, the correct answer is B. You need to add the system-control permission flag to the operations class to solve the problem.The system-control permission flag allows the user to perform system-level operations, such as rebooting, halting, or snapshotting the device1.These operations are required to mount, unmount, and copy files to and from the USB drive2. To add the system-control permission flag to the operations class, you need to perform the following steps:

Enter the configuration mode: user@host> configure

Navigate to the system login class hierarchy: user@host# edit system login class operations

Add the system-control permission flag: user@host# set permissions system-control

Commit the changes: user@host# commit

login (System)

How to mount a USB drive on EX/SRX/MX/QFX Series platforms to import/export files