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Juniper JN0-330

JN0-330

Exam Code: JN0-330

Exam Name: JN0-330-Enhanced Services, Specialist(JNCIS-ES)

Updated: Aug 18, 2026

Q&A Number: 150 Q&As

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Juniper JN0-330 Exam Syllabus Topics:

SectionObjectives
Topic 1: Core Enhanced Services Concepts- JUNOS with Enhanced Services packet handling
- Session and flow inspection basics
Topic 2: Security and Zone Configuration- Security zones and policies
- SCREEN options and flood protection
Topic 3: Enhanced Services Operations- Basic operational monitoring and troubleshooting
- View and analyze interface and security statistics
Topic 4: VPNs and Tunnels- Route-based VPNs
- IPsec and GRE/MLPPP configuration

Juniper JN0-330-Enhanced Services, Specialist(JNCIS-ES) Sample Questions:

1. Which two steps are necessary to configure a zone? (Choose two.)

A) Assign physical interfaces to the zone.
B) Assign logical interfaces to the zone.
C) Define a default policy for the zone.
D) Define the zone as a security or functional zone.


2. You are required to configure a SCREEN option that enables IP source route option detection.
Which two configurations meet this requirement? (Choose two.)

A) [edit security screen]
user@host# show
ids-option protectFromFlood {
ip {
source-route-option;
}
B) [edit security screen]
user@host# show
ids-option protectFromFlood {
ip {
strict-source-route-option;
record-route-option;
}
C) [edit security screen]
user@host# show
ids-option protectFromFlood {
ip {
record-route-option;
security-option;
}
D) [edit security screen]
user@host# show
ids-option protectFromFlood {
ip {
loose-source-route-option;
strict-source-route-option;
}


3. You must configure a policy-based VPN. Which command causes traffic to be sent through an IPSec VPN named remote-vpn?

A) [edit security policies from-zone trust to-zone untrust]
user@host# set policy tunnel-traffic then permit ipsec-vpn remote-vpn
B) [edit security policies from-zone trust to-zone untrust]
user@host# set policy tunnel-traffic then permit tunnel ipsec-vpn remote-vpn
C) [edit security policies from-zone trust to-zone untrust]
user@host# set policy tunnel-traffic then tunnel ipsec-vpn remote-vpn
D) [edit security policies from-zone trust to-zone untrust]
user@host# set policy tunnel-traffic then tunnel remote-vpn


4. Regarding a route-based versus policy-based IPSec VPN, which statement is true?

A) A route-based VPN cannot have a deny action in a policy; a policy-based VPN can have a deny action.
B) A route-based VPN is better suited for dialup or remote access VPNs compared to a policy-based VPN.
C) A route-based VPN uses a policy referencing the IPSec VPN; a policy-based VPN policy does not use a policy referencing the IPSec VPN.
D) A route-based VPN generally uses less resources than a policy-based VPN.


5. You want to create a policy allowing traffic from any host in the Trust zone to hostb.example.com (172.19.1.1) in the Untrust zone. How do you do create this policy?

A) Create an address book entry in the Untrust zone for the 172.19.1.1/32 prefix and reference this entry in the policy.
B) Create an address book entry in the Trust zone for the 172.19.1.1/32 prefix and reference this entry in the policy.
C) Specify the IP address (172.19.1.1/32) as the destination address in the policy.
D) Specify the DNS entry (hostb.example.com.) as the destination address in the policy.


Solutions:

Question # 1
Answer: B,D
Question # 2
Answer: A,D
Question # 3
Answer: B
Question # 4
Answer: D
Question # 5
Answer: A

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