Juniper JN0-231 Security, Associate JNCIA-SEC Exam Practice Test

Answer : D

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.

Answer : D

The proxy ID is used as a final check to verify the peer before IPsec tunnel establishment. The proxy ID is a combination of local and remote subnet and protocol, and it is used to match the traffic that is to be encrypted. If the proxy IDs match between the two IPsec peers, the IPsec tunnel is established, and the traffic is encrypted.

Juniper Networks SRX Series Services Gateway IPsec Configuration Guide: https://www.juniper.net/documentation/en_US/release-independent/junos/topics/topic-map/security-ipsec-vpn-configuring.html

Answer : C, D

For the UTM feature profile to take effect, it must be associated with a security policy and a UTM policy. The security policy defines the traffic flow and the actions that should be taken on the traffic, while the UTM policy defines the security features to be applied to the traffic, such as antivirus, intrusion prevention, and web filtering. The UTM feature profile provides the necessary configuration for the security features defined in the UTM policy.

Juniper Networks SRX Series Services Gateway UTM Configuration Guide: https://www.juniper.net/documentation/en_US/release-independent/junos/topics/topic-map/security-services-utm.html

Answer : C

Web filtering is a feature that allows administrators to control access to websites by categorizing URLs into different categories such as gambling, social networking, or adult content. The decision to permit or deny access to a website is based on the category to which a URL belongs. This is done by comparing the URL against a database of categorized websites and making a decision based on the policy defined by the administrator.

Juniper Networks SRX Series Services Gateway Web Filtering Configuration Guide: https://www.juniper.net/documentation/en_US/release-independent/junos/topics/topic-map/security-services-web-filtering.html

Answer : B, C

Global policies are used to define rules for traffic that is not associated with any particular zone. This type of policy is evaluated first, before any rules related to specific zones are evaluated.

For more detailed information about global policies, refer to the Juniper Networks Security Policy Overview guide, which can be found at https://www.juniper.net/documentation/en_US/junos/topics/reference/security-policy-overview.html. The guide provides an overview of the Juniper Networks security policy architecture, as well as detailed descriptions of the different types of policies and how they are evaluated.

Answer : C

Answer : A, B