Juniper JN0-231 Security – Associate (JNCIA-SEC) Online Training
Juniper JN0-231 Online Training
The questions for JN0-231 were last updated at Nov 23,2024.
- Exam Code: JN0-231
- Exam Name: Security - Associate (JNCIA-SEC)
- Certification Provider: Juniper
- Latest update: Nov 23,2024
Question #21
What does the number ‘’2’’ indicate in interface ge―0/1/2?
- A . The interface logical number
- B . The physical interface card (PIC)
- C . The port number
- D . The flexible PIC concentrator (FPC)
Correct Answer: C
Question #22
Which two statements about user-defined security zones are correct? (Choose two.)
- A . Users cannot share security zones between routing instances.
- B . Users can configure multiple security zones.
- C . Users can share security zones between routing instances.
- D . User-defined security zones do not apply to transit traffic.
Correct Answer: B,C
B,C
Explanation:
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 user-defined security zones, as the policies applied to these zones will be applied to the transit traffic as well.
References:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-zones-overview-configuring.html
https://www.juniper.net/documentation/en_US/junos/topics/task/security/security-zones-configuring-shared.html
B,C
Explanation:
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 user-defined security zones, as the policies applied to these zones will be applied to the transit traffic as well.
References:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-zones-overview-configuring.html
https://www.juniper.net/documentation/en_US/junos/topics/task/security/security-zones-configuring-shared.html
Question #23
You have configured a UTM feature profile.
Which two additional configuration steps are required for your UTM feature profile to take effect? (Choose two.)
- A . Associate the UTM policy with an address book.
- B . Associate the UTM policy with a firewall filter.
- C . Associate the UTM policy with a security policy.
- D . Associate the UTM feature profile with a UTM policy.
Correct Answer: C,D
C,D
Explanation:
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.
Reference:
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
C,D
Explanation:
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.
Reference:
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
Question #24
Which two statements are correct about the null zone on an SRX Series device? (Choose two.)
- A . The null zone is created by default.
- B . The null zone is a functional security zone.
- C . Traffic sent or received by an interface in the null zone is discarded.
- D . You must enable the null zone before you can place interfaces into it.
Correct Answer: A,C
A,C
Explanation:
According to the Juniper SRX Series Services Guide, the null zone is a predefined security zone that is created on the SRX Series device when it is booted. Traffic that is sent to or received on an interface in the null zone is discarded. The null zone is not a functional security zone, so you cannot enable or disable it.
A,C
Explanation:
According to the Juniper SRX Series Services Guide, the null zone is a predefined security zone that is created on the SRX Series device when it is booted. Traffic that is sent to or received on an interface in the null zone is discarded. The null zone is not a functional security zone, so you cannot enable or disable it.
Question #25
Which two addresses are valid address book entries? (Choose two.)
- A . 173.145.5.21/255.255.255.0
- B . 153.146.0.145/255.255.0.255
- C . 203.150.108.10/24
- D . 191.168.203.0/24
Correct Answer: A,C
A,C
Explanation:
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.
A,C
Explanation:
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.
Question #26
You want to verify the peer before IPsec tunnel establishment.
What would be used as a final check in this scenario?
- A . traffic selector
- B . perfect forward secrecy
- C . st0 interfaces
- D . proxy ID
Correct Answer: D
D
Explanation:
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.
Reference:
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
D
Explanation:
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.
Reference:
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
Question #27
Which feature would you use to protect clients connected to an SRX Series device from a SYN flood attack?
- A . security policy
- B . host inbound traffic
- C . application layer gateway
- D . screen option
Correct Answer: D
D
Explanation:
A screen option in the SRX Series device can be used to protect clients connected to the device from a SYN flood attack. Screens are security measures that you can use to protect your network from various types of attacks, including SYN floods. A screen option specifies a set of rules to match against incoming packets, and it can take specific actions such as discarding, logging, or allowing the packets based on the rules.
Reference:
Juniper Networks SRX Series Services Gateway Screen Configuration Guide: https://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-screen-configuring.html
D
Explanation:
A screen option in the SRX Series device can be used to protect clients connected to the device from a SYN flood attack. Screens are security measures that you can use to protect your network from various types of attacks, including SYN floods. A screen option specifies a set of rules to match against incoming packets, and it can take specific actions such as discarding, logging, or allowing the packets based on the rules.
Reference:
Juniper Networks SRX Series Services Gateway Screen Configuration Guide: https://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-screen-configuring.html
Question #28
What is the main purpose of using screens on an SRX Series device?
- A . to provide multiple ports for accessing security zones
- B . to provide an alternative interface into the CLI
- C . to provide protection against common DoS attacks
- D . to provide information about traffic patterns traversing the network
Correct Answer: C
C
Explanation:
The main purpose of using screens on an SRX Series device is to provide protection against common Denial of Service (DoS) attacks. Screens help prevent network resources from being exhausted or unavailable by filtering or blocking network traffic based on predefined rules. The screens are implemented as part of the firewall function on the SRX Series device, and they help protect against various types of DoS attacks, such as TCP SYN floods, ICMP floods, and UDP floods.
Reference: https://www.juniper.net/documentation/en_US/junos/topics/concept/security-srx-series-firewall-screen-dos.html
C
Explanation:
The main purpose of using screens on an SRX Series device is to provide protection against common Denial of Service (DoS) attacks. Screens help prevent network resources from being exhausted or unavailable by filtering or blocking network traffic based on predefined rules. The screens are implemented as part of the firewall function on the SRX Series device, and they help protect against various types of DoS attacks, such as TCP SYN floods, ICMP floods, and UDP floods.
Reference: https://www.juniper.net/documentation/en_US/junos/topics/concept/security-srx-series-firewall-screen-dos.html
Question #29
You want to implement user-based enforcement of security policies without the requirement of certificates and supplicant software.
Which security feature should you implement in this scenario?
- A . integrated user firewall
- B . screens
- C . 802.1X
- D . Juniper ATP
Correct Answer: D
D
Explanation:
In this scenario, you should implement Juniper ATP (Advanced Threat Prevention). Juniper ATP provides user-based enforcement of security policies without the requirement of certificates and supplicant software. It uses a combination of behavioral analytics, sandboxing, and threat intelligence to detect and respond to advanced threats in real time. Juniper ATP provides robust protection against targeted attacks, malicious insiders, and zero-day malware. For more information, please refer to the Juniper ATP product page on Juniper’s website.
D
Explanation:
In this scenario, you should implement Juniper ATP (Advanced Threat Prevention). Juniper ATP provides user-based enforcement of security policies without the requirement of certificates and supplicant software. It uses a combination of behavioral analytics, sandboxing, and threat intelligence to detect and respond to advanced threats in real time. Juniper ATP provides robust protection against targeted attacks, malicious insiders, and zero-day malware. For more information, please refer to the Juniper ATP product page on Juniper’s website.
Question #30
You want to block executable files ("exe) from being downloaded onto your network.
Which UTM feature would you use in this scenario?
- A . IPS
- B . Web filtering
- C . content filtering
- D . antivirus
Correct Answer: B
B
Explanation:
According to the Juniper Networks official JNCIA-SEC Exam Guide, web filtering is a feature used to control access to web content, including the ability to block specific types of files.
In the scenario mentioned, you want to block executable files from being downloaded, which can be accomplished by using web filtering. The feature allows administrators to configure policies that block specific file types, including "exe" files, from being downloaded.
Reference:
Juniper Networks JNCIA-SEC Exam Guide: https://www.juniper.net/training/certification/certification-exam-guides/jncia-sec-exam-guide/
B
Explanation:
According to the Juniper Networks official JNCIA-SEC Exam Guide, web filtering is a feature used to control access to web content, including the ability to block specific types of files.
In the scenario mentioned, you want to block executable files from being downloaded, which can be accomplished by using web filtering. The feature allows administrators to configure policies that block specific file types, including "exe" files, from being downloaded.
Reference:
Juniper Networks JNCIA-SEC Exam Guide: https://www.juniper.net/training/certification/certification-exam-guides/jncia-sec-exam-guide/
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