Juniper JN0-232 Online Practice Questions and Exam Preparation

Juniper JN0-232 Online Questions & Answers

• Question 61:

  Which zone configuration is required to permit transit traffic?

  A. a system-defined null zone
  B. a system-defined Junos-host zone
  C. a user-defined security zone
  D. a user-defined functional zone
  C. a user-defined security zone

  ---

  Transit traffic is defined as traffic passingthrough the SRX firewall(from one interface/zone to another). To allow transit traffic: Interfaces must be placed into auser-defined security zone(Option C). Policies between zones are then applied to control traffic. Thenull zone (Option A)discards all traffic. TheJunos-host zone (Option B)is used for traffic destined to the SRX itself, not transit. Functional zones (Option D)are predefined and used for special purposes (like management), not for transit traffic. Correct Configuration:User-defined security zone Reference: Juniper Networks Security Zones and Transit Traffic, Junos OS Security Fundamentals.

• Question 62:

  Click the Exhibit button.

  

  You must ensure that sessions can only be established from the external device.

  Referring to the exhibit, which type of NAT is being performed?

  A. destination NAT only
  B. source NAT only
  C. static PAT only
  D. static NAT and source NAT
  A. destination NAT only

  ---

  From the exhibit:

  The internal host (172.25.11.101) is located in theTrust zone.

  The external address (203.0.113.199/30) is used for communication with the ISP.

  The requirement is thatsessions can only be initiated from the external device(the ISP or untrust side)

  toward the internal host.

  This requirement matches the behavior ofDestination NAT:

  Destination NAT only (Option A):Maps the external/public IP (203.0.113.199) to the internal/private IP (172.25.11.101). This allows inbound connections to be translated and sent to the internal host. The internal host cannot initiate outbound sessions, since the translation only applies to inbound traffic.

  Source NAT only (Option B):Used for outbound sessions from internal private IPs to the Internet.

  This does not meet the requirement.

  Static PAT (Option C):Maps a single port of a public IP to a private IP/port. The exhibit does not indicate a port-based translation.

  Static NAT and source NAT (Option D):Would provide bidirectional communication, allowing sessions to be initiated in both directions. This contradicts the requirement.

  Correct NAT Type:Destination NAT only

  Juniper Networks NAT Types (Source NAT, Destination NAT, Static NAT), Junos OS Security Fundamentals.

• Question 63:

  What does the number "2" indicate in interface ge-0/1/2?

  A. the physical interface card (PIC)
  B. the flexible PIC concentrator (FPC)
  C. the interface logical number
  D. the port number
  D. the port number

  ---

  ge-FPC/PIC/port - last digit is the port index.

• Question 64:

  Which two parameters are required in a security policy match condition? (Choose two.)

  A. session timeout
  B. source address
  C. destination address
  D. inactivity threshold
  B. source address
  C. destination address

  ---

  Security policies require at least source and destination address definitions to match traffic. Timeouts and thresholds are optional policy attributes, not match conditions.

• Question 65:

  You are asked to verify that a license for AppSecure is installed on an SRX Series device. In this scenario, which command will provide you with the required information?

  A. user@srx> show system license
  B. user@srx> show services accounting
  C. user@srx> show configuration system
  D. user@srx> show chassis firmware
  A. user@srx> show system license

• Question 66:

  Which command tests the connectivity between an SRX Series firewall and a configured IDP signature update server?

  A. request security idp security-package download
  B. show security idp attack table
  C. show security idp sensor statistics
  D. request security idp test-connection
  D. request security idp test-connection

  ---

  The test-connection operational command validates communication with IDP update servers, confirming reachability and authentication.

• Question 67:

  Which two statements are true about the NextGen Web Filtering (NGWF) feature on an SRX Series device? (Choose two.)

  A. The NGWF feature consults the Juniper cloud before consulting your local lists.
  B. The NGWF feature requires a license.
  C. The NGWF feature consults your local lists before consulting the Juniper cloud.
  D. The NGWF feature does not require a license.
  B. The NGWF feature requires a license.
  C. The NGWF feature consults your local lists before consulting the Juniper cloud.

  ---

  License Requirement (Option B):NextGen Web Filtering (NGWF) is a licensed feature on SRX devices. Without a license, the service cannot operate.

  Local vs. Cloud Lists (Option C):NGWF checkslocal block/allow lists first. If the URL does not

  match locally, the request is then checked against the Juniper cloud database.

  Option A:Incorrect, since the cloud is only consulted if the URL is not in the local list.

  Option D:Incorrect, as NGWF requires a valid subscription/license.

  Correct Statements: NGWF requires a license, and it checks local lists before cloud lookup.

  Juniper Networks UTM Web Filtering Types (NextGen Web Filtering), Junos OS Security Fundamentals.

• Question 68:

  What is the default dead peer detection (DPD) interval for IPsec VPN?

  A. 20 seconds
  B. 5 seconds
  C. 10 seconds
  D. 40 seconds
  C. 10 seconds

  ---

  Default DPD interval in Junos is 10 seconds.

• Question 69:

  You are not able to ping an interface on an SRX Series Firewall. Which two actions should you take to solve this issue? (Choose two.)

  A. Assign the interface to a security zone.
  B. Create a security policy to allow ping traffic.
  C. Assign the interface to the null zone.
  D. Configure the ICMP protocol for host-inbound-traffic.
  A. Assign the interface to a security zone.
  D. Configure the ICMP protocol for host-inbound-traffic.

  ---

  For an SRX firewall interface to respond to management traffic such as ICMP pings:

  Theinterface must be assigned to a security zone(Option A). If an interface is not part of any zone, it is placed into the null zone, which drops all traffic. Additionally, the zone must be configured to allow management traffic types ashost-inbound-traffic (Option D). For ICMP, the protocol must be explicitly allowed under host-inbound-traffic for that zone. Other options: Security policies (Option B) control traffic traversing the firewall, not traffic destined to the SRX device itself. Assigning the interface to the null

  zone (Option C) prevents any communication, including management. Correct Actions:Assign the interface to a zone and configure ICMP under host-inbound-traffic.

  Juniper Networks Host Inbound Traffic and Zone Configuration, Junos OS Security Fundamentals.

• Question 70:

  A security zone is configured with source 192.168.0.12/255.255.0.255 wildcard match. Which two IP packets match? (Choose two.)

  A. 192.168.1.21
  B. 192.168.0.1
  C. 192.168.1.12
  D. 192.168.22.12
  C. 192.168.1.12
  D. 192.168.22.12

  ---

  Wildcard mask allows variation where mask bits = 1; matches x.x.1.12 and x.x.22.12.