Cisco 642-504 Exam Details & Actual Exam Questions

  • Exam Code/Number: 642-504
  • Exam Name/Title: Securing Networks with Cisco Routers and Switches
  • Certification Provider: Cisco
  • Corresponding Certification: CCSP
  • Exam Questions: 127
  • Updated On: Sep,26 2026
  • Certification Level: Professional

Cisco Securing Networks with Cisco Routers and Switches Exam Questions

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This exam has been stopped to register, new exam code replace: 642-637

Cisco 642-504 Exam Overview:

Certification Vendor:Cisco
Exam Name:Securing Networks with Cisco Routers and Switches (SNRS)
Exam Number:642-504
Passing Score:Cisco scaled scoring (typically ~790/1000, varies by exam version)
Exam Format:Multiple choice, Multiple answer, Simulations (simlets), Troubleshooting scenarios
Real Exam Qty:45-55
Available Languages:English
Exam Duration:90 minutes
Related Certifications:Cisco Certified Network Professional Security (CCNP Security)
Cisco Certified Network Associate (CCNA Security)
Cisco Certified Security Professional (CCSP)
Certificate Validity Period:Retired exam (historically certification valid for 3 years under Cisco policies)
Recommended Training:Cisco Networking Academy Security Courses
Exam Registration:Cisco Certification Registration
Pearson VUE Cisco Exams
Sample Questions:Cisco 642-504 Sample Questions
Exam Way:Proctored exam via Pearson VUE testing centers (historical delivery method)
Pre Condition:Recommended: CCNA-level knowledge (preferably CCNA Security or equivalent networking/security experience)
Official Syllabus URL:https://www.cisco.com/c/en/us/training-events/training-certifications.html

Cisco 642-504 Exam Syllabus Topics:

SectionObjectives
Firewall and IOS Security Features- Cisco IOS Firewall
  • 1. Zone-Based Firewall basics
    • 2. Context-Based Access Control (CBAC)
      Securing Cisco Network Infrastructure- Device Hardening
      • 1. Password policies and privilege levels
        • 2. Securing IOS devices and management access (SSH, Telnet restrictions)
          - Layer 2 Security
          • 1. Port security and MAC limiting
            • 2. VLAN security and trunk protection
              Routing Protocol Security- Secure Routing Protocols
              • 1. Route filtering and prefix lists
                • 2. Authentication for OSPF, EIGRP, and RIP
                  AAA and Identity Services- Authentication, Authorization, Accounting
                  • 1. TACACS+ and RADIUS configuration concepts
                    • 2. Local vs centralized authentication
                      VPN Technologies- IPsec VPN
                      • 1. IKE phases and policies
                        • 2. Site-to-site VPN configuration concepts
                          Intrusion Detection and Prevention- Network Monitoring and IDS/IPS
                          • 1. Traffic analysis and anomaly detection
                            • 2. Cisco IDS/IPS concepts


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