Juniper JN0-331 exam dumps : SEC,Specialist(JNCIS-SEC)

  • Exam Code: JN0-331
  • Exam Name: SEC,Specialist(JNCIS-SEC)
  • Updated: Jul 29, 2026     Q & A: 131 Questions and Answers

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Juniper JN0-331 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Security Policies20%- Policy structure and processing
- Policy logging and monitoring
- Address books and applications
Topic 2: User Authentication5%- Firewall user authentication
- Access control methods
Topic 3: IPsec VPNs15%- Site-to-site VPN configuration
- VPN monitoring and troubleshooting
- IPsec concepts and IKE
Topic 4: High Availability10%- Chassis clustering concepts
- HA configuration and synchronization
Topic 5: Security Fundamentals & Zones15%- Security components overview
- Routing instances for security
- Security zones and interfaces
Topic 6: Unified Threat Management10%- UTM features overview
- Antivirus, antispam, web filtering
Topic 7: Network Address Translation (NAT)15%- Static NAT
- Destination NAT
- Source NAT
Topic 8: Screens & DoS Protection10%- Screen options configuration
- DoS and flood protection

Juniper SEC,Specialist(JNCIS-SEC) Sample Questions:

1. Which three functions are provided by JUNOS Software for security platforms? (Choose three.)

A) Dynamic ARP inspection
B) Network Address Translation
C) stateful ARP lookups
D) inspection of packets at higher levels (Layer 4 and above)
E) VPN establishment


2. Click the Exhibit button.

Based on the exhibit, client PC 192.168.10.10 cannot ping 1.1.1.2. Which is a potential cause for this problem?

A) The trust zone does not have ping enabled as a host-inbound-traffic service.
B) No security policy exists for the ICMP reply packet from the untrust zone to the trust zone.
C) The security policy from the trust zone to the untrust zone does not permit ping.
D) The untrust zone does not have a management policy configured.


3. Click the Exhibit button.
[edit security policies]
user@host# show
from-zone trust to-zone untrust {
policy AllowHTTP{
match {
source-address HOSTA;
destination-address any;
application junos-ftp;
}
then {
permit;
}}
policy AllowHTTP2{
match {
source-address any;
destination-address HOSTA;
application junos-http;
}
then {
permit;
}}
policy AllowHTTP3{
match {
source-address any;
destination-address any;
application any;
}
then {
permit;
}}}
A flow of HTTP traffic needs to go from HOSTA to HOSTB. Assume that traffic will initiate from
HOSTA and that HOSTA is in zone trust and HOSTB is in zone untrust.
What will happen to the traffic given the configuration in the exhibit?

A) The traffic will be permitted by policy AllowHTTP.
B) The traffic will be dropped as no policy match will be found.
C) The traffic will be permitted by policy AllowHTTP2.
D) The traffic will be permitted by policy AllowHTTP3.


4. Click the Exhibit button.
[edit security policies]
user@host# show
from-zone Private to-zone External {
policy MyTraffic {
match {
source-address myHosts;
destination-address ExtServers;
application [ junos-ftp junos-bgp ];
}
then {
permit {
tunnel {
ipsec-vpn vpnTunnel;
}}}}}
policy-rematch;
In the exhibit, you decided to change myHosts addresses.
What will happen to the new sessions matching the policy and in-progress sessions that had
already matched the policy?

A) New sessions will be evaluated. In-progress sessions will be re-evaluated.
B) New sessions will halt until all in-progress sessions are re-evaluated. In-progress sessions will be re-evaluated and possibly dropped.
C) New sessions will be evaluated. All in-progress sessions will continue.
D) New sessions will be evaluated. All in-progress sessions will be dropped.


5. Click the Exhibit button.
[edit chassis]
user@host# show
cluster {
reth-count 3;
redundancy-group 1 {
node 0 priority 1;
node 1 priority 100;
}}
When applying the configuration in the exhibit and initializing a chassis cluster, which
statement is correct?

A) node 0 will immediately become primary for redundancy group 1.
B) Three physical interfaces are redundant.
C) You must issue an operational command and reboot the system for the above configuration to take effect.
D) You must define an additional redundancy group.


Solutions:

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

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