Juniper JN0-231 Exam : Security, Associate (JNCIA-SEC)

  • Exam Code: JN0-231
  • Exam Name: Security, Associate (JNCIA-SEC)
  • Updated: Aug 26, 2026
  • Q & A: 107 Questions and Answers

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The JN0-231 exam is an intermediate level security certification which is also known as JNCIA-SEC. This exam tests the knowledge of candidates on various topics related to network security such as intrusion prevention systems, network security policies and much more.

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  • You can become familiar with different types of attacks such as Denial of Service (DoS), Distributed Denial of Service (DDoS), Man in the Middle attack, Packet sniffing and others.

  • You will be able to gain knowledge about different protocols such as IPSec, L2TP, PPTP etc.

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Reference: https://www.juniper.net/us/en/training/certification/tracks/security/jncia-sec.html

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Juniper JN0-231 Exam Syllabus Topics:

SectionWeightObjectives
Screen Options and RTDR Full Exception Handling15%- RTDR full exception handling
  • 1. Exception handling procedures
  • 2. Exception type definition
  • 3. Integration with screening logic
- Types of screening and scanning
  • 1. Content filtering
  • 2. IP screening (flood, fragment, malformed packets)
  • 3. Application ID
  • 4. Screen options architecture
  • 5. User ID
Security Concepts22%- Security policies
  • 1. Policy components
  • 2. Types of security policies
  • 3. Policy evaluation logic
- Network security concepts
  • 1. Confidentiality, integrity, availability (CIA)
  • 2. Attack vectors and mitigation
  • 3. Risk management
  • 4. Threats, vulnerabilities, and exploits
IPSec VPN Concepts23%- IPSec configuration
  • 1. Certificate-based VPN
  • 2. VPN monitoring and troubleshooting
  • 3. IKE and IPSec VPN configuration
- VPN fundamentals
  • 1. IPSec phases (IKE Phase 1, IKE Phase 2)
  • 2. VPN types (site-to-site, remote access)
  • 3. Tunnel modes (tunnel, transport)
Network Address Translation (NAT)15%- NAT configuration and troubleshooting
  • 1. NAT rules and policies
  • 2. NAT for IPv6
  • 3. NAT pool configuration
- NAT types
  • 1. Source NAT (SNAT)
  • 2. Static NAT
  • 3. Dynamic NAT
  • 4. Destination NAT (DNAT)
Sky ATP and SecIntel25%- Advanced threat prevention
  • 1. Threat intelligence feeds
  • 2. Sky ATP architecture
  • 3. Malware detection and mitigation
- SecIntel configuration
  • 1. Geolocation-based blocking
  • 2. C&C (Command and Control) blocking
  • 3. Security intelligence integration
  • 4. Custom threat feeds

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