Try and practice the latest Cisco : 642-591 real questions & answers
Updated: Sep 14, 2026
No. of Questions: 60 Questions & Answers with Testing Engine
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Cisco 642-591 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco NAC Appliance (CANAC) |
| Exam Number: | 642-591 |
| Exam Format: | Scenario-Based, Multiple Choice Single Answer, Multiple Choice Multiple Answer |
| Exam Price: | USD 200-250 (historical, retired) |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 55-65 |
| Available Languages: | English |
| Certificate Validity Period: | 3 years (retired since August 2012) |
| Related Certifications: | Cisco Certified Security Professional (CCSP) Cisco NAC Appliance Specialist |
| Passing Score: | Approx 750 / 1000 scale |
| Recommended Training: | Cisco authorized training: Implementing Cisco NAC Appliance |
| Exam Registration: | Pearson VUE (historical) |
| Sample Questions: | Cisco 642-591 Sample Questions |
| Exam Way: | Onsite at Pearson VUE authorized test centers; retired, no longer available |
| Pre Condition: | No mandatory prerequisites; CCNA Security or equivalent networking/security knowledge recommended |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams/retired.html |
Cisco 642-591 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Access Enforcement | 15% | - VLAN assignment and segmentation - Traffic filtering and policies - High availability and failover - Quarantine and production access |
| Topic 2: Monitoring, Maintenance and Troubleshooting | 5% | - Logging and reporting - System backup and restore - Common troubleshooting scenarios |
| Topic 3: User Authentication and Authorization | 20% | - RADIUS authentication - Role-based access control - LDAP and Active Directory integration - Guest access configuration - Local user database |
| Topic 4: Endpoint Compliance and Posture Assessment | 20% | - Custom compliance policies - OS and patch level checks - Antivirus and antispyware verification - Posture validation rules - Remediation and quarantine flow |
| Topic 5: Cisco NAC Appliance Architecture | 20% | - Clean Access Manager (CAM) functions - Clean Access Server (CAS) functions - Solution components - In-band vs Out-of-band deployment modes - Clean Access Agent (CAA) operation |
| Topic 6: Installation and Initial Configuration | 20% | - Initial setup of CAM and CAS - Hardware and software requirements - Licensing and activation - Network connectivity configuration - Administrative access and management |
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