Juniper JN0-231 Practice Test - Questions Answers, Page 10

User-defined security zones allow users to configure multiple security zones and share them between routing instances. This allows users to easily manage multiple security zones and their associated policies. For example, a user can create a security zone for corporate traffic, a security zone for guest traffic, and a security zone for public traffic, and then configure policies to control the flow of traffic between each of these security zones. Transit traffic can also be managed using userdefined security zones, as the policies applied to these zones will be applied to the transit traffic as well.

Reference:

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-zonesoverview-configuring.html

https://www.juniper.net/documentation/en_US/junos/topics/task/security/security-zonesconfiguring-shared.html

Juniper Enhanced Web Filtering is a web filtering solution that uses a direct Internet-based service for URL categorization. This service allows Enhanced Web Filtering to quickly and accurately categorize URLs and other web content, providing real-time protection against malicious content.

Additionally, Enhanced Web Filtering is able to provide detailed reporting on web usage, as well as the ability to define and enforce acceptable use policies.

Reference: https://www.juniper.net/documentation/en_US/junos-space-securitydirector/topics/task/configuration/security-services-web-filtering-enhanced.html

https://www.juniper.net/documentation/en_US/junos-space-securitydirector/topics/task/configuration/security-services-web-filtering-enhanced-overview.html

Junos-host and null are two non-configurable zones that exist by default on an SRX Series device.

Junos-host is the default zone for all internal interfaces and services, such as management and other loopback interfaces. The null zone is used to accept all traffic that is not explicitly accepted by other security policies, and is the default zone for all unclassified traffic. Both zones cannot be modified or deleted.

Reference:

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-zonesoverview.html

https://www.juniper.net/documentation/en_US/junos/topics/reference/configurationstatement/security-zones-default-zone-configuration.html

Juniper ATP Cloud is a cloud-based ATP subscription that delivers advanced threat protection services, such as URL categorization, file reputation analysis, and malware analysis. It is able to quickly and accurately categorize URLs and other web content, and can also provide detailed reporting on web usage, as well as the ability to define and enforce acceptable use policies.

Additionally, Juniper ATP Cloud is able to block and allow specific IPs, providing additional protection against malicious content.

Reference: https://www.juniper.net/documentation/en_US/junos-space-securitydirector/topics/task/configuration/security-services-web-filtering-atp-cloud.html

https://www.juniper.net/documentation/en_US/junos-space-securitydirector/topics/task/configuration/security-services-web-filtering-atp-cloud-overview.html

The correct address book entries are:

173.145.5.21/255.255.255.0

203.150.108.10/24

Both of these entries represent a valid IP address and subnet mask combination, which can be used as an address book entry in a Juniper device.

This is necessary to ensure that the application firewall can properly identify the application and the correct security policies can be applied before allowing any traffic to pass through.

If the first packet was allowed to pass without first being identified, then the application firewall would not know which security policies to apply - and this could potentially lead to security vulnerabilities or breaches. So it's important that the first packet is held until the application is identified.

Juniper ATP should be configured with C&C feeds that contain lists of malicious domains and IP addresses in order to prevent IP cameras from becoming zombies in a DDoS attack.

This is an important step to ensure that the IP cameras are protected from malicious requests - and thus, they will not be able to be used in any DDoS attacks against the facility.

https://www.juniper.net/documentation/us/en/software/junos/interfaces-securitydevices/topics/topic-map/security-interface-logical.html

By default, TCP has a 30-minute idle timeout, and UDP has a 60-second idle timeout. Additionally, known IP protocols have a 30-minute timeout, whereas unknown ones have a 60-second timeout.

Setting the inactivity timeout is very useful, particularly if you are concerned about applications either timing out or remaining idle for too long and filling up the session table. According to the Juniper SRX Series Services Guide, this can be configured using the 'timeout inactive' statement for the security policy.