Cisco 642-551 Exam Information and Actual Questions

Exam Questions: 62
Updated On: Jul 20, 2026

642-551
FREE EXAM DUMPS QUESTIONS & ANSWERS

This exam has been stopped to register, new exam code replace: 642-552

Certification Vendor:	Cisco
Exam Name:	Securing Cisco Network Devices (SND)
Exam Number:	642-551
Real Exam Qty:	62
Available Languages:	English
Certificate Validity Period:	3 years
Exam Format:	Multiple Choice, Simulation
Exam Price:	$200–$250 USD (retired rate)
Related Certifications:	CCNP Security CCIE Security
Passing Score:	825 (scale 300–1000)
Exam Duration:	90 minutes
Recommended Training:	Securing Cisco Network Devices (SND) course
Exam Registration:	Pearson VUE
Sample Questions:	Cisco 642-551 Sample Questions
Exam Way:	Onsite at Pearson VUE testing centers (retired)
Pre Condition:	Valid CCNA certification or equivalent knowledge
Official Syllabus URL:	https://www.cisco.com

Section	Weight	Objectives
Topic 1: Securing Cisco IOS Routers	25%	- Access control lists (ACLs) and traffic filtering - Control plane security and anti-spoofing - Router hardening and AAA implementation
Topic 2: Secure Remote Access with VPN	10%	- VPN 3000 Concentrator overview - VPN fundamentals and IPsec basics
Topic 3: Cisco IPS and HIPS Technologies	15%	- Cisco IOS IPS and Cisco Security Agent overview - Intrusion prevention concepts and deployment
Topic 4: Cisco PIX Security Appliance Basics	15%	- Firewall concepts and PIX architecture - Basic configuration, NAT, and access rules
Topic 5: Securing Layer 2 Network Infrastructure	20%	- Layer 2 security risks and mitigation - Implementing port security, VLAN security, and storm control
Topic 6: Cisco Security Portfolio Overview	15%	- Cisco security solutions and product positioning - Network security threats and vulnerabilities