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Real Cisco 640-553 practice exam questions for easy pass!

Updated: Sep 18, 2026

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Cisco 640-553 Exam Overview:

Certification Vendor:Cisco
Exam Name:Implementing Cisco IOS Network Security (IINS)
Exam Number:640-553 (IINS)
Certificate Validity Period:3 years (for CCNA Security certification; exam itself is retired)
Related Certifications:CCNA Security
Exam Duration:90 minutes
Available Languages:English
Passing Score:Approximately 825/1000 (scaled score, subject to Cisco adjustment)
Exam Price:$250 USD (varies by region)
Exam Format:Multiple choice, Simlets, Simulation questions, Multiple answer
Real Exam Qty:50–60
Recommended Training:Cisco Learning Network (CCNA Security resources)
Cisco Press Official Certification Guide (IINS)
Exam Registration:Cisco Certification Exam Registration (Pearson VUE)
Sample Questions:Cisco 640-553 Sample Questions
Exam Way:Delivered via Pearson VUE testing centers or online proctored exam (when available at the time of offering)
Pre Condition:No formal prerequisite; CCNA-level knowledge strongly recommended.
Official Syllabus URL:https://www.cisco.com/c/en/us/training-events/training-certifications/certifications/ccna-security.html

Cisco 640-553 Exam Syllabus Topics:

SectionObjectives
Device Security- Securing Cisco IOS devices
  • 1. Password policies and encryption
    • 2. Secure management access (SSH, HTTPS)
      • 3. Device hardening practices
        VPN Technologies- IPsec VPN configuration
        • 1. Site-to-site VPNs
          • 2. IKE and ISAKMP concepts
            Secure Access Control- Authentication, Authorization, and Accounting (AAA)
            • 1. Local and server-based AAA
              • 2. RADIUS and TACACS+ configuration
                Network Security Technologies- Access Control Lists (ACLs)
                • 1. ACL troubleshooting and verification
                  • 2. Standard and extended ACLs
                    - IOS firewall features
                    • 1. Zone-Based Firewall (ZBFW)
                      Infrastructure Security- Layer 2 security
                      • 1. Port security
                        • 2. DHCP snooping and DAI
                          Intrusion Prevention and Monitoring- Cisco IOS IPS
                          • 1. IPS configuration and deployment
                            • 2. Signature-based detection

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