Practice Free JN0-232 Exam Online Questions
You want to integrate an SRX Series device with Juniper ATP Cloud.
What is the first action to accomplish this task?
- A . Issue the commit script to register the SRX Series device.
- B . Create an account with the Juniper ATP Cloud Web UI.
- C . Copy the operational script from the Juniper ATP Cloud Web Ul.
- D . Create the SSL VPN tunnel between the SRX Series device and Juniper ATP Cloud.
You are asked to reduce security configuration complexity on your external facing firewalls. You notice that a previous administrator included hundreds of private subnet NAT rules covering various RFC1918 addresses. You want to replace all these rules with a single rule covering all RFC1918 addresses.
Which rule would you use in this scenario?
- A . set security nat source rule-set private-to-pub rule RFC1918 match source-address [10.0.0.0/8 192.168.0.0/16 172.16.0.0/12]
- B . set security nat source rule-set private-to-pub rule RFC1918 match source-address [10.0.0.0/8 192.16.0.0/12 172.168.0.0/16]
- C . set security nat source rule-set private-to-pub rule RFC1918 match source-address [10.0.0.0/8 172.168.0.0/16 192.0.2.0/24 203.1.113.0/24]
- D . set security nat source rule-set private-to-pub rule RFC1918 match source-address [10.0.0.0/8 192.168.0.0/16 172.16.0.0/12 192.0.2.0/24]
A
Explanation:
RFC 1918 defines three private IPv4 blocks:
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
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.
You have an FTP server and a webserver on the inside of your network that you want to make available to users outside of the network. You are allocated a single public IP address.
In this scenario, which two NAT elements should you configure? (Choose two.)
- A . destination NAT
- B . NAT pool
- C . source NAT
- D . static NAT
A, B
Explanation:
With single Ip address it is port forwarding. So, destination NAT and a pool address point to the single public IP of the internet facing interface.
Which three Web filtering deployment actions are supported by Junos? (Choose three.)
- A . Use IPS.
- B . Use local lists.
- C . Use remote lists.
- D . Use Websense Redirect.
- E . Use Juniper Enhanced Web Filtering.
B, D, E
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/utm/topics/concept/utm-web-filtering-overview.html
You are modifying the NAT rule order and you notice that a new NAT rule has been added to the bottom of the list.
In this situation, which command would you use to reorder NAT rules?
- A . top
- B . run
- C . up
- D . insert
A
Explanation:
In Junos OS, NAT rules are evaluated in top-down order. When a new rule is added, it is placed at the bottom of the rule set by default.
To move a rule to the top of the rule set, the command is:
set security nat source rule-set <name> rule <rule-name> top
Option A (top): Correct. Moves the specified rule to the top of the list.
Option B (run): Used to execute operational commands, not rule reordering.
Option C (up): Not valid for reordering NAT rules.
Option D (insert): Not a supported NAT reordering command in Junos.
Correct Command: top
Reference: Juniper Networks CNAT Rule Evaluation Order and Rule Reordering, Junos OS Security Fundamentals.
What is the correct order of processing when configuring NAT rules and security policies?
- A . static NAT -> destination NAT -> policy lookup -> source NAT
- B . source NAT -> static NAT -> destination NAT -> policy lookup
- C . destination NAT -> policy lookup -> source NAT -> static NAT
- D . policy lookup -> source NAT -> static NAT -> destination NAT
You are investigating a communication problem between two hosts and have opened a session on the SRX Series device closest to one of the hosts and entered the show security flow session command.
What information will this command provide? (Choose two.)
- A . The total active time of the session.
- B . The end-to-end data path that the packets are taking.
- C . The IP address of the host that initiates the session.
- D . The security policy name that is controlling the session.
When configuring antispam, where do you apply any local lists that are configured?
- A . custom objects
- B . advanced security policy
- C . antispam feature-profile
- D . antispam UTM policy
Which two statements about management functional zones are correct? (Choose two.)
- A . The management functional zone is used to control the management-related traffic that is allowed to access your device.
- B . The management functional zone contains all available revenue ports until they are assigned to a user-defined security zone.
- C . The management functional zone is automatically created on the SRX Series Firewalls.
- D . The management functional zone cannot be referenced in any security policies.
A C
Explanation:
The management functional zone on SRX devices is a special predefined zone with unique characteristics:
It is automatically created (Option C) and cannot be deleted.
It is used specifically for management-related traffic (Option A), such as SSH, Telnet, web management (J-Web), SNMP, and other control-plane services.
It does not contain revenue (data) interfaces (Option B is incorrect). Interfaces must be explicitly configured into user-defined zones.
The management zone can be referenced in policies if inter-zone communication involving management traffic is needed (Option D is incorrect).
Correct Statements: A and C
Reference: Juniper Networks CSecurity Zones and Management Functional Zone, Junos OS Security Fundamentals.