Exam Code: JN0-331
Exam Name: SEC,Specialist(JNCIS-SEC)
Certification Provider: Juniper
Corresponding Certification: JNCIS
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Juniper JN0-331 Exam Syllabus Topics:

SectionObjectives
Topic 1: VPN Technologies- VPN implementation
  • 1. Site-to-site VPN concepts
    • 2. Policy-based vs route-based VPNs
      - IPsec VPN
      • 1. VPN troubleshooting basics
        • 2. IKE phases and negotiation
          Topic 2: Troubleshooting and Operations- Security troubleshooting
          • 1. VPN connectivity diagnostics
            • 2. Policy evaluation issues
              Topic 3: Security Services and Features- Advanced security features
              • 1. Screening and DoS protection basics
                • 2. Logging and monitoring
                  Topic 4: Security Fundamentals- Network security concepts
                  • 1. Threat types and attack vectors
                    • 2. Security zones and policies basics
                      Topic 5: NAT (Network Address Translation)- NAT types and use cases
                      • 1. Source NAT
                        • 2. Static NAT
                          • 3. Destination NAT
                            Topic 6: Security Policies and Firewall Filters- Policy configuration
                            • 1. Match criteria and actions
                              • 2. Policy ordering and evaluation
                                - Firewall filters
                                • 1. Filter terms and rules
                                  • 2. Apply filters to interfaces

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

                                    Question 1

                                    Which configuration shows a pool-based source NAT without PAT'?

                                    A. [edit security nat source]
                                    user@host# show
                                    pool A {
                                    address { 207.17.137.1/32 to 207.17.137.254/32;
                                    }
                                    overflow-pool interface;
                                    }
                                    rule-set 1A {
                                    from zone trust;
                                    to zone untrust;
                                    rule 1 {
                                    match {
                                    source-address 10.1.10.0/24;
                                    }
                                    then {
                                    source-nat pool A;
                                    port no-translation;
                                    }}}
                                    B. [edit security nat source]
                                    user@host# show
                                    pool A {
                                    address {207.17.137.1/32 to 207.17.137.254/32;
                                    }
                                    port no-translation;
                                    }
                                    rule-set 1A {
                                    from zone trust;
                                    to zone untrust;
                                    rule 1 {
                                    match {
                                    source-address 10.1.10.0/24;
                                    }
                                    then {
                                    source-nat pool A;
                                    }}}
                                    C. [edit security nat source]
                                    user@host# show
                                    pool A {
                                    address {207.17.137.1/32 to 207.17.137.254/32;
                                    }
                                    overflow-pool interface;
                                    }
                                    rule-set 1A {
                                    from zone trust;
                                    to zone untrust;
                                    rule 1 {
                                    match {
                                    source-address 10.1.10.0/24;
                                    }
                                    then {
                                    source-nat pool A;
                                    }}}
                                    D. [edit security nat source]
                                    user@host# show
                                    pool A {
                                    address { 207.17.137.1/32 to 207.17.137.254/32;
                                    }}
                                    rule-set 1A {
                                    from zone trust;
                                    to zone untrust;
                                    rule 1 {
                                    match {
                                    source-address 10.1.10.0/24;
                                    }
                                    then {
                                    source-nat pool A;
                                    port no-translation;
                                    }}
                                    }


                                    Question 2

                                    Click the Exhibit button.
                                    [edit security policies from-zone HR to-zone trust]
                                    user@host# show
                                    policy two {
                                    match {
                                    source-address subnet_a;
                                    destination-address host_b;
                                    application [ junos-telnet junos-ping ];
                                    }
                                    then {
                                    reject;
                                    }} policy one {
                                    match {
                                    source-address host_a;
                                    destination-address subnet_b;
                                    application any;
                                    }
                                    then {
                                    permit;
                                    }}
                                    host_a is in subnet_a and host_b is in subnet_b.
                                    Given the configuration shown in the exhibit, which statement is true about traffic from host_a
                                    to host_b?

                                    A. Ping traffic is permitted.
                                    B. DNS traffic is denied.
                                    C. SMTP traffic is denied.
                                    D. Telnet traffic is denied.


                                    Question 3

                                    Click the Exhibit button.
                                    [edit schedulers]
                                    user@host# show
                                    scheduler now {
                                    monday all-day;
                                    tuesday exclude;
                                    wednesday {
                                    start-time 07:00:00 stop-time 18:00:00;
                                    }
                                    thursday {
                                    start-time 07:00:00 stop-time 18:00:00;
                                    }}
                                    [edit security policies from-zone Private to-zone External]
                                    user@host# show
                                    policy allowTransit {
                                    match {
                                    source-address PrivateHosts;
                                    destination-address ExtServers;
                                    application ExtApps;
                                    }
                                    then {
                                    permit {
                                    tunnel {
                                    ipsec-vpn myTunnel;
                                    }}}
                                    scheduler-name now;
                                    }
                                    Based on the configuration shown in the exhibit, what will happen to the traffic matching the
                                    security policy?

                                    A. The traffic is permitted through the myTunnel IPsec tunnel all day on Mondays and Wednesdays between 7:00 am and 6:00 pm, and Thursdays between 7:00 am and 6:00 pm.
                                    B. The traffic is permitted through the myTunnel IPsec tunnel only on Tuesdays.
                                    C. The traffic is permitted through the myTunnel IPsec tunnel all day on Mondays and Wednesdays between 6:01 pm and 6:59 am, and Thursdays between 6:01 pm and 6:59 am.
                                    D. The traffic is permitted through the myTunnel IPsec tunnel daily, with the exception of Mondays.


                                    Question 4

                                    You are implementing an IDP policy template from Juniper Networks. Which three steps are included in this process? (Choose three.)

                                    A. downloading the IDP policy templates
                                    B. installing the policy templates
                                    C. configuring an IDP groups statement
                                    D. setting up a chassis cluster
                                    E. activating a JUNOS Software commit script?


                                    Question 5

                                    By default, which condition would cause a session to be removed from the session table?

                                    A. Security policy for the session changed.
                                    B. The ARP table entry for the source IP address timed out.
                                    C. Route entry for the session changed.
                                    D. No traffic matched the session during the timeout period.


                                    Solutions:

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

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