Juniper JN0-231 Security – Associate (JNCIA-SEC) Online Training
Juniper JN0-231 Online Training
The questions for JN0-231 were last updated at Dec 24,2024.
- Exam Code: JN0-231
- Exam Name: Security - Associate (JNCIA-SEC)
- Certification Provider: Juniper
- Latest update: Dec 24,2024
Question #11
What is the default timeout value for TCP sessions on an SRX Series device?
- A . 30 seconds
- B . 60 minutes
- C . 60 seconds
- D . 30 minutes
Correct Answer: D
D
Explanation:
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.
D
Explanation:
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.
Question #12
What is the number of concurrent Secure Connect user licenses that an SRX Series device has by default?
- A . 3
- B . 4
- C . 2
- D . 5
Correct Answer: C
C
Explanation:
The number of concurrent Secure Connect user licenses that an SRX Series device has by default is 2. Secure Connect is a feature of Juniper SRX Series devices that allows you to securely connect to remote networks via IPsec VPN tunnels. Each SRX Series device comes with two concurrent Secure Connect user licenses by default, meaning that it can support up to two simultaneous IPsec VPN connections. For more information, please refer to the Juniper Networks SRX Series Services Gateways Security Configuration Guide, which can be found on Juniper’s website.
C
Explanation:
The number of concurrent Secure Connect user licenses that an SRX Series device has by default is 2. Secure Connect is a feature of Juniper SRX Series devices that allows you to securely connect to remote networks via IPsec VPN tunnels. Each SRX Series device comes with two concurrent Secure Connect user licenses by default, meaning that it can support up to two simultaneous IPsec VPN connections. For more information, please refer to the Juniper Networks SRX Series Services Gateways Security Configuration Guide, which can be found on Juniper’s website.
Question #13
Which two statements are correct about IPsec security associations? (Choose two.)
- A . IPsec security associations are bidirectional.
- B . IPsec security associations are unidirectional.
- C . IPsec security associations are established during IKE Phase 1 negotiations.
- D . IPsec security associations are established during IKE Phase 2 negotiations.
Correct Answer: A,D
A,D
Explanation:
The two statements that are correct about IPsec security associations are that they are bidirectional and that they are established during IKE Phase 2 negotiations. IPsec security associations are bidirectional, meaning that they provide security for both incoming and outgoing traffic. IPsec security associations are established during IKE Phase 2 negotiations, which negotiates the security parameters and establishes the security association between the two peers. For more information, please refer to the Juniper Networks IPsec VPN Configuration Guide, which can be found on Juniper’s website.
A,D
Explanation:
The two statements that are correct about IPsec security associations are that they are bidirectional and that they are established during IKE Phase 2 negotiations. IPsec security associations are bidirectional, meaning that they provide security for both incoming and outgoing traffic. IPsec security associations are established during IKE Phase 2 negotiations, which negotiates the security parameters and establishes the security association between the two peers. For more information, please refer to the Juniper Networks IPsec VPN Configuration Guide, which can be found on Juniper’s website.
Question #14
Which statement is correct about Junos security policies?
- A . Security policies enforce rules that should be applied to traffic transiting an SRX Series device.
- B . Security policies determine which users are allowed to access an SRX Series device.
- C . Security policies control the flow of internal traffic within an SRX Series device.
- D . Security policies identity groups of users that have access to different features on an SRX Series device.
Correct Answer: A
A
Explanation:
The correct statement about Junos security policies is that they enforce rules that should be applied to traffic transiting an SRX Series device. Security policies control the flow of traffic between different zones on the SRX Series device, and dictate which traffic is allowed or denied. They can also specify which application and service requests are allowed or blocked. More information about Junos security policies can be found in the Juniper Networks technical documentation here: https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-policies-overview.html.
A
Explanation:
The correct statement about Junos security policies is that they enforce rules that should be applied to traffic transiting an SRX Series device. Security policies control the flow of traffic between different zones on the SRX Series device, and dictate which traffic is allowed or denied. They can also specify which application and service requests are allowed or blocked. More information about Junos security policies can be found in the Juniper Networks technical documentation here: https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-policies-overview.html.
Question #15
Which two statements are correct about global policies? (Choose two.)
- A . Global policies are evaluated after default policies.
- B . Global policies do not have to reference zone context.
- C . Global policies are evaluated before default policies.
- D . Global policies must reference zone contexts.
Correct Answer: B,C
B,C
Explanation:
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.
B,C
Explanation:
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.
Question #16
What are two Juniper ATP Cloud feed analysis components? (Choose two.)
- A . IDP signature feed
- B . C&C cloud feed
- C . infected host cloud feed
- D . US CERT threat feed
Correct Answer: A,B
A,B
Explanation:
The Juniper ATP Cloud feed analysis components are the IDP signature feed and the C&C cloud feed. The IDP signature feed provides a database of signatures from known malicious traffic, while the C&C cloud feed provides the IP addresses of known command and control servers. The infected host cloud feed and US CERT threat feed are not components of the Juniper ATP Cloud feed analysis.
To learn more about the Juniper ATP Cloud feed analysis components, refer to the Juniper Networks Security Automation and Orchestration (SAO) official documentation, which can be found at https://www.juniper.net/documentation/en_US/sao/topics/concept/security-automation-and-orchestration-overview.html. The documentation provides an overview of the SAO platform and an in-depth look at the various components of the Juniper ATP Cloud feed analysis.
A,B
Explanation:
The Juniper ATP Cloud feed analysis components are the IDP signature feed and the C&C cloud feed. The IDP signature feed provides a database of signatures from known malicious traffic, while the C&C cloud feed provides the IP addresses of known command and control servers. The infected host cloud feed and US CERT threat feed are not components of the Juniper ATP Cloud feed analysis.
To learn more about the Juniper ATP Cloud feed analysis components, refer to the Juniper Networks Security Automation and Orchestration (SAO) official documentation, which can be found at https://www.juniper.net/documentation/en_US/sao/topics/concept/security-automation-and-orchestration-overview.html. The documentation provides an overview of the SAO platform and an in-depth look at the various components of the Juniper ATP Cloud feed analysis.
Question #17
Which two statements are true about Juniper ATP Cloud? (Choose two.)
- A . Juniper ATP Cloud is an on-premises ATP appliance.
- B . Juniper ATP Cloud can be used to block and allow IPs.
- C . Juniper ATP Cloud is a cloud-based ATP subscription.
- D . Juniper ATP Cloud delivers intrusion protection services.
Correct Answer: C,D
C,D
Explanation:
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.
References:
https://www.juniper.net/documentation/en_US/junos-space-security-director/topics/task/configuration/security-services-web-filtering-atp-cloud.html
https://www.juniper.net/documentation/en_US/junos-space-security-director/topics/task/configuration/security-services-web-filtering-atp-cloud-overview.html
C,D
Explanation:
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.
References:
https://www.juniper.net/documentation/en_US/junos-space-security-director/topics/task/configuration/security-services-web-filtering-atp-cloud.html
https://www.juniper.net/documentation/en_US/junos-space-security-director/topics/task/configuration/security-services-web-filtering-atp-cloud-overview.html
Question #18
An application firewall processes the first packet in a session for which the application has not yet been identified.
In this scenario, which action does the application firewall take on the packet?
- A . It allows the first packet.
- B . It denies the first packet and sends an error message to the user.
- C . It denies the first packet.
- D . It holds the first packet until the application is identified.
Correct Answer: D
D
Explanation:
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.
D
Explanation:
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.
Question #19
What are two logical properties of an interface? (Choose two.)
- A . link mode
- B . IP address
- C . VLAN ID
- D . link speed
Correct Answer: B,C
B,C
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/interfaces-security-devices/topics/topic-map/security-interface-logical.html
B,C
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/interfaces-security-devices/topics/topic-map/security-interface-logical.html
Question #20
Which statement is correct about static NAT?
- A . Static NAT supports port translation.
- B . Static NAT rules are evaluated after source NAT rules.
- C . Static NAT implements unidirectional one-to-one mappings.
- D . Static NAT implements unidirectional one-to-many mappings.
Correct Answer: C
C
Explanation:
Static NAT (Network Address Translation) is a type of NAT that maps a public IP address to a private IP address. With static NAT, a one-to-one mapping is created between a public IP address and a private IP address. This means that a single public IP address is mapped to a single private IP address, and all incoming traffic to the public IP address is forwarded to the private IP address.
Reference: https://www.juniper.net/documentation/en_US/junos/topics/concept/nat-overview.html
C
Explanation:
Static NAT (Network Address Translation) is a type of NAT that maps a public IP address to a private IP address. With static NAT, a one-to-one mapping is created between a public IP address and a private IP address. This means that a single public IP address is mapped to a single private IP address, and all incoming traffic to the public IP address is forwarded to the private IP address.
Reference: https://www.juniper.net/documentation/en_US/junos/topics/concept/nat-overview.html
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